A design to save the “Serre landscape” in Salento (Italy) from
Transcription
A design to save the “Serre landscape” in Salento (Italy) from
A design to save the “Serre landscape” in Salento (Italy) from desertification A f s t u d e e r p l a n Simona Serafino Academie van Bouwkunst Amsterdam Landschapsarchitectuur 2012-2013 Afstudeerplan Simona Serafino 21 september 2012 Fig. 1(Front page).The effects of desertification during the summertime in the countryside of Salento. In the back the typical lame, flat valley in the region rich of terra rossa. They represent the main agricultural areas, while outside these areas low hills of carbonate rocks are for grazing. Burgemeester Meinesztraat 9b 3022XE Rotterdam T 0617807529 E [email protected] Academie van Bouwkunst Amsterdam September 2012- August 2013 Landschapsarchitectuur CONTENTS INTRODUCTION TO THE TOPIC THE CONTEXT THE RESEARCH TOPIC THE RESEARCH ASSIGNMENT CASE STUDY MY FASCINATIONS FINAL PRODUCT COMMISSION PLANNING LITERATURE A f s t u d e e r p l a n Simona Serafino pag. 5 pag. 13 pag. 17 pag. 21 pag. 27 pag. 31 pag. 33 pag. 35 pag. 37 pag. 41 Abstract Desertification is one of the most important and dramatic manifestations of the climate change occurring in the recent times. Although invisibly, it relentlessly progresses and comes to concern ever more areas. The Mediterranean Region, due to climatic, geological, and anthropological conditions and transformation, has come to be seriously endangered by this problem. The Peninsula of Salento, the southestern most Italian province, is a very interesting case study to understand how desertification progresses and what are its natural and anthropological roots. This graduation proposal moves from the belief that desertification, despite being a very complex problem, can be approached as a landscape problem in its broadest sense. As this graduation proposal explains, the management of the territory has by far quicker and more dramatic effects on desertification that long-lasting natural transformations. Therefore, a design-headed approach can introduce elements, suggest practices and prescribe rules which can prove very useful in halting this process. To design against desertification consists in a multi-scale process, which starts from the big, territorial scale to find out the problems, suggests general strategies, gives these strategies a shape in form of a masterplan and ends up at the very local scale suggesting specific solutions. This research project will follow this process step by step. The first part will be the elaboration of a new water cycle at the regional scale, which aims at re-establishing a water balance. Accordingly to the findings of this introductory part, a proper design phase will follow. A small section of the Peninsula of Salento will be chosen, for which a masterplan will be drawn up. The masterplan will be headed to recreate an harmonic coexistence between nature and water-demanding functions such as housing and agriculture. Within the frame of this masterplan, a part will be studied in detail (until the 1:500 scale). At this scale a formal design process will occour, where elements in the space will be accomodated or created according to their maximum water-conservation performance. 1. INTRODUCTION TO THE TOPIC Desertification is a threat for the Mediterranean Region Desertification is one of the most important and dramatic manifestations of the climate change occurring in the recent times. Although invisibly, it relentlessly progresses and comes to concern ever more areas. The Mediterranean Region, due to climatic, geological, and anthropological conditions and transformation, has come to be seriously endangered by this problem. This graduation proposal will focus on a part of a province of Southern Italy, the Peninsula of Salento, as a case study, to find out a strategy to halt the process of desertification. Desertification is a worldwide rising and still undervalued problem. It consists in a long-lasting process involving areas all over the world. The most recent statistics prove that up to 30% of the global land surface is currently experiencing desertification; such phenomenon concerns 110 countries and is estimated to cost US$42 billion a year. In comparison to other phenomena connected to climate change, however, desertification is a silent process, which does not manifest itself in sudden, extreme semblances. Therefore, it tends to be underestimated. Desertification involves relevant territories beyond suspicion in Europe, and demands for urgent solution strategies which apply at different scales and fields. The first scientific definition of desertification was given in October 1994 in Paris, at the “International Convention to Combat Desertification in Countries Affected by Serious Drought or Desertification”: Desertification is the land degradation of arid, semiarid and dry-subhumid areas resulting from various factors A f s t u d e e r p l a n Simona Serafino Fig.2 Desertification in the central Mediterranean region. The color’s gradient shows the advancement of the process of desertification from the southern countries of the Mediterranean to the northern ones. (source: website www.zeroemission.eu) 5 Fig. 4 Climatic regions of Italy and meteorological stations. (source: www.soilmaps.it). 6 Fig. 5 Areas potentially at risk of desertification, soil regions and pedoclimatic desertification risk. (source: www.soilmaps.it). A f s t u d e e r p l a n Simona Serafino including climatic variations and human activities. Land degradation is to be meant as the reduction or the loss of the biological or the economic productivity of rained or irrigated cropland, woodlands and forests. In recent years most international research, debate, sensitization, and law-making activities have been brought forward by a United Nation organ, the UNCCD (United Nation Convention to Combat Desertification). According to UNCCD the problem of desertification is increasingly affecting the North Mediterranean Region. While desertification in North Africa and Middle East is a self-evident phenomenon, whole provinces of southern European countries are being more and more affected. In the European Union two-thirds of Spain, the Algarve and the Alentejo regions in Portugal, the whole Mezzogiorno area in Italy, the southern part of France and most of the Greek islands are afflicted by desertification. This problem rose in the last century and grew serious in the last decades, when a significant reduction of rainfalls has been observed. The roots of the phenomenon, however, have to be found in the crisis of agriculture corresponding to the 20th-century city-focused economic growth model. Fig. 3 Aridity Index. (source: www.soilmaps.it). A f s t u d e e r p l a n Simona Serafino 7 Fig. 6 The structure of the of the traditional landscpae is still visible in the countryside. 8 Fig. 7 The massive cementification on the coast (Lido Marini). A f s t u d e e r p l a n Simona Serafino Desertification in Italy Countryside has been progressively abandoned, with special regard to the most critical spots such as marginal, easily eroded hillsides, or cultivated with chemical, aggressive products to enhance the production in order to feed the growing urban population. Overbuilding, bushfires and wrong management of water resources are further factors that stress the soil. Desertification in Southern Europe, therefore, relies significantly on human factors and is closely linked to the impoverishment of the cultural identity of a macro-region, which was once the nest of the western civilization. As the core of the Mediterranean region, desertification affects also Italy. Studies to map the desertification risk in Italy prove that up to 30% of the whole national territory is undergoing a desertification danger. Southern most regions, such as Apulia, Basilicata, Calabria, Sicily and Sardinia show an advanced desertification process, which is slowly moving northwards affecting territories such as Tuscany and Emilia Romagna, ever more vulnerable to the intermittency of the rainfalls. Most relevant indicators, such as water consumption growth, aridity index and density of vegetation cover, show a dramatic situation, which has to be addressed urgently. A simple formula helps understanding the hydrological balance. When such balance is positive, it can be expressed as follows: water withdrawal from the terrain. In the case of Salento, as in that of any territory running into desertification, this formula is flipped: A < B+C Water consumption (C) has grown up to 30% in the last thirty years, whereas Sicily, Puglia and Sardinia show aridity indexes lower than 0,65, thus comparable to those of desert territories. Main causes of desertification in Italy consist in a wrong management of the A > B+C where A is the meteoric water, B the water transpiration from the terrain and C the A f s t u d e e r p l a n Simona Serafino 9 Fig. 8 Spatial distribution of ESAI in Apulia Region- Environmentally Sensitive Areas Index. (source: G. Trisorio Liuzzi, G. Ladisa, Gli impatti dei cambiamenti climatici sull’agricoltura: dal contest europeo al contest regionale, in Atti della conferenza nazionale cambiamenti climatici, 2007 – pdf) 10 A f s t u d e e r p l a n Simona Serafino 2. Data collection The following data of the physical environment and land management characteristics are required for the definition of ESAs to desertification: (a) soil data, (b) vegetation data, (c) climate data, and (d) land management characteristics (Fig. 14). SOIL TEXTURE ROCK FRAGMENT SOIL DEPTH PARENT MATERIAL SOIL QUALITY DRAINAGE SLOPE GRADIENT RAINFALL Fig. 9 Distribution of regional surface of ESAI- Environmentally Sensitive Areas Index. (source: G. Trisorio Liuzzi, G. Ladisa, Gli impatti dei cambiamenti climatici sull’agricoltura: dal contest europeo al contest regionale, in Atti della conferenza nazionale cambiamenti climatici, 2007 – ARIDITY INDEX CLIMATE QUALITY ASPECT ESAs FIRE RISK EROSION PROTECTION DROUGHT RESISTANCE VEGETATION QUALITY PLANT COVER LAND USE TYPE LAND USE INTENSITY MANAGEMENT QUALITY POLICY Fig. 10 Distribution of provincial surface in ESAI- Environmentally Sensitive Areas Index. (source: G. Trisorio Liuzzi, G. Ladisa, Gli impatti dei cambiamenti climatici sull’agricoltura: dal contest europeo al contest regionale, in Atti della conferenza nazionale cambiamenti climatici, 2007 – pdf) A f s t u d e e r p l a n Simona Serafino Fig. 14. Parameters used for the definition and mapping of the ESAs to desertification. Fig. 11 Parameters used for the 36 definition and mapping of the ESAs to desertification. (source: The Medalus project Mediterranean desertification and land use, ESA Manual PDF 1999). 11 Fig. 12 The landscpae mosaic. (source: VIGANO’ P., 2000. Territories of a new modernity. Electa, Napoli). 12 Fig. 13 The landscpae mosaic. (source: VIGANO’ P., 2000. Territories of a new modernity. Electa, Napoli). A f s t u d e e r p l a n Simona Serafino 2. THE CONTEXT sezione B - interpretazione identitaria e statutaria The landscape mosaic in Salento area, Apulia region A f s t u d e e r p l a n Simona Serafino A B C Salento delle serre Salento is an area in the Apulia region, in the south-eastern part of Italy. It is a 140000-ha-big peninsula, which lays 70 km far from Albany and 90 km from Greece, in the core of the Mediterranean area. Rich in history and culture, it presents some typical characters of the Mediterranean civilization, consisting in a landscape structure where few relevant urban centres are located. Little affected by the industrial economic boom which Italy experienced in the postwar decades, Salento has stick until recent times to an economic model focused on agriculture. Its landscape mirrors it. Most of Salento’s green surface (89%) is represented by anthropic vegetation. The landscape matrix is dominated by some typical, identitary elements: centuries-old olive trees cultivation is by far the most relevant one. Masserie (big, 19th-century stone farm buildings nowadays at most abandoned) and dry-stone walls as separation between plots are other relevant elements. Besides agriculture an heterogeneous landscape made of canals, groves of reeds, quarries, beaches and dunes, cliff vegetation, typical salt steppes of Mediterranean areas and wine’s orchards (19%) consist in a relevant land portion. Finally, urban areas (10%) consist in a dispersed system of small villages, which are currently developing along the infrastructural system and along the west coast, where a massive touristic development has already upset the dunes landscape. SEZ. B2 - RAPPRESENTAZIONE IDENTITARIA: ESTRATTO DELLA CARTA DEL PATRImONIO Fig. 14 The Serre area of Salento. 13 Litologia Calcareniti a grana fine, prevalentemente marnose (Pietra Leccese) Calcareniti organogene, calcari detritici compatti Calcari organogeni e detritici, compatti e tenaci; calcari dolomitici e dolomie stratificate e fratturate Sabbie, sabbie limose, calcareniti, calcareniti marnose 14 Fig. a “raft”:scheme 15 Salento as (Source: VIGANO’ P., 2000. Territories of a new modernity. Electa, Napoli) A f s t ud e e r pl an Simona Serafino Hydrological situation of Salento Salento is quite homogeneous with regard to its hydrogeological profile. The territory is mostly made of calcareous rocks, which stand on top of the seabed. Underneath them, at a depth of ca. 200 m below sea level, seawater of Adriatic Sea (East to Salento) and Jonic Sea (westwards) meet. Such a formation makes the accumulation of significant hydric resources possible. Calcareous rocks are very permeable to the infiltration of meteoric waters, which penetrate the terrain until they get to the salty water layer. Meteoric soft water is lighter than salty seawater, thus it lays on top of it without mingling. The repetition over time of such a process has made a consistent groundwater accumulation available. Such richness, however, is compensated by the complete lack of surface water sources. Drinkable water is therefore mainly provided by the Apulian aqueduct. Its network, which dates back to the beginnings of 1900s, serves most villages in Salento as well as in the rest of Apulia. Fig. 16 Detail of the typical calcareous rock in one of the dry stone wall. A f s t u d e e r p l a n Simona Serafino 15 Fig. 17 Sea water intrusion 1900. Fig. 18 Sea water intrusion 2000. (Source: VIGANO’ P., 2000. Territories of a new modernity. Electa, Napoli) 16 Fig. 19 Risk for the floodings. (Source: VIGANO’ P., 2000. Territories of a new modernity. Electa, Napoli) A f s t u d e e r p l a n Simona Serafino 3. THE RESEARCH TOPIC The territory of Salento is regarded as an area with a high risk of desertification because of some of its hydrogeological and eco-biological characteristics. Desertification is the final result of multiple imbalances caused by human activities and long-term consequences of current climate changes. A major problem with regard to desertification risk is water provision. As mentioned above, water provision in Salento relies the most on the Apulian aqueduct. Urbanization of Salento region, however, features ever more a sprawled model. A number of houses and farms lie away from the aqueduct’s network. In such situations wells have been dug (sometimes with authorization, some others without) to draw on groundwater. This increasing process has brought groundwater to a situation of hydric stress, which manifests the most during summertime, when a strong anthropic pressure on the coast areas due to tourism is coupled with drought. The uncontrolled fresh water withdrawal from the deep ground has caused a decrease in the quality of drinkable water. Its reduction in quantity has attracted seawater ever more to the interior, which has resulted in contamination of groundwater. Salinization of groundwater is regarded as one of the main risk factors to desertification because it brings to a consequent vegetation reduction. The increase of salinity in wells is acceptable up to a certain point, beyond which it will not be possible to use them until a long-term process of soft water provision will be completed. A f s t u d e e r p l a n Simona Serafino Moreover, the permeable nature of calcareous rocks favours the underground infiltration of any superficial water, both meteoric and waste ones, which bring with themselves pollution when not properly purified. The dramatic expansion of urbanized areas and impermeable surfaces which has occurred in the last decades and has not been supported by a consequent expansion of the sewage network has brought to an uncontrolled amount of polluted water to infiltrate underground and compromise groundwater. In 2000 the Province of Lecce and the office Secchi-Viganò drew up together a Territorial Coordination Masterplan, which took all these problems into account. The Masterplan suggested the need of creating a new water cycle capable of halting desertification in the Salento. The plan proposed four strategic themes, which were to be adopted by every municipality as guidelines: 1) Study on water’s percolation to the aquifers, marking lithological differences in the substratum which define soil’s permeability. 2) Treatment and recovery of waste waters by using different purification techniques. 3) Regulation of surface waters in order to favour the highest recovery of meteoric and waste waters possible to be used for non-drinking purposes and for the refill of the groundwater accumulation. 4) Mitigation of the groundwater salinization process in order to halt seawater ingression and groundwater’s loss of quality. 17 Fig. 20 Vulnerability of the water bearing. (Source: VIGANO’ P., 2000. Territories of a new modernity. Electa, Napoli) 18 Fig. 21 Functional scheme for the safeguard from the sea water intrusion proposed in the Territorial Coordination Masterplan. My starting question for my graduation project is: Is it possible formulate a new strategy? (Source: VIGANO’ P., 2000. Territories of a new modernity. Electa, Napoli) A f s t u d e e r p l a n Simona Serafino What is important to know is how the water machine works now and how it worked before the big transformation of the landscape. Several important changes in the course of the years occourred, coupled to the transformation of the landscape during the 20th century. The anthropic preassure during the summertime on the coast area, the reclamation of the wetlands into agricultural uses and the urban expansion have put significant preassure to the water system. The study of the water machine includes the groundwater in the underground layer, and the superficial water on the surface layer. These two layers of the water machine, separated by the calcareous rock, reflect precise forms and values of the landscape, which are going to be the ingredients of my design proposal. The need of a naturalization strategy The Territory Coordination Masterplan also addresses another point, which has to do with Salento’s territory eco-biological profile. Such profile consists in an additional factor to desertification. Since Neolithic times natural vegetation has been changed with agriculture. This has completely modified the landscape matrix, which today is represented in strong majority by the agricultural mosaic, especially by the olive trees cultivation. Currently just 5,5% of the total surface is covered by natural or semi-natural vegetation. Such a low percentage is not able to contrast irreversible phenomena connected to climate change and desertification and it doesn’t contribute to CO2 reduction. The Territorial Coordination Masterplan suggests therefore the need to start policies of widespread nature which take into account all components of the environmental mosaic. A f s t u d e e r p l a n Simona Serafino Fig. 22 The desertification effect on one the Serre. The presence of a small church gives the idea of how the hill was accessible and liveable before the abandone of it. 19 Fig. 23 Concarplan is a reference masterplan for Porto Santo Island in Madeira Archipelago. It was a competition won by OD205 and Haskoning in 1977. The main intention of the competition was to suggest how to halt the degeneration processes redevelop a new natural environment, improving the living standards of the local population. 20 A f s t u d e e r p l a n Simona Serafino 4. THE RESEARCH ASSIGNMENT How the natural system work? This graduation project will focus on actions and strategies to halt the desertification process in the Salento area. The project will move along several lines at different scales. First of all, the elaboration of such actions and strategies implies as a starting point a research phase headed to a deep understanding of the factors which influence desertification risk. As argued above, water provision is the main topic to this extent. The first part of the graduation project, thus, will consist in a broad study on the water cycle in Salento. This will result in the elaboration of a new water cycle at a regional scale. Consequently to conclusions that will be drawn in the first part, a second, design-centered part will follow. This part will consider a limited, emblematic part of the area. Here design will deal with the territory at different scales, from that of the masterplan to the one of the detail, suggesting ways in which major water-consuming elements and practices can be rethought in order to perform more sustainable. In the design phase I would like to study a new housing development integrated in the landscape which can answer at the touristic demand. The research for this purpose is going to look for old constructive tecniques realized with dry-stone walls of water reuse and water uptake for agriculture uses. Aspects to be deepened in this phase will come as a consequence of the analysis. A renaturalization strategy could be designed integrated in the housing complex as important issues to be considered in the small scale design. A f s t u d e e r p l a n Simona Serafino The starting point for the elaboration of a new water cycle will be an accurate balance of the current hydric situation in order to understand how much water is available in the system and where it comes from. In this phase it will be important to look carefully at the whole water cycle to understand the key imbalance points. The knowledge and interpretation of the current situation will give instruments to propose an alternative water provision strategy based on an alternative model of water uptake. The end of this phase will be a regional model to redevelop a new natural environment. A reference project for this phase is the Concarplan. It is a competition won in 1977 for Porto Santo island, in Madeira archipelago, by the office OD 205 and Haskoning. Concarplan suggests how to halt the degeneration processes by redeveloping a new natural environment, improving the living standards of the local population. 21 Urban wastewater treatment and reuse Urban runoff treatment in a cascaded wetland system reusing urban wastewater: recycling H2O & P+N to vitalise landuse Ridge city City Edge Forest Bufferzone Precision agriculture Extensive grasslands Functional nature zone (300m) Ecological purification Paralell wetland and dike Lake with ecological bank Fig. 24 Hadimkoy (Istanbul), The ridge city, H+N+S Landschapsaarchitecten. Urban wastewater is treated and reused for irrigation. At the same time, urban runoff is treated in a cascaded wetland system, paralel to the basin preventing direct runoff . The run-off water is cleansed into the lower zones of the basin. 22 A f s t u d e e r p l a n Simona Serafino Elaboration of a new water cycle: an alternative way of water uptake The second part of my research will be the study of a significant section of the landscape, to formulate a new model of water uptake. Such model will consider new strategies and ideas for alternative sources of water provision related to the features of the landscape. This study will consider a range of aspects as possible fields of intervention for new techniques of water provision. Agriculture and housing as major water-demanding activities will be the focus of the research. Hadimkoy, the ridge city in Istanbul, is my reference model. It is designed by H+N+S Landschapsarchitecten and presented at the Biennale of Rotterdam. The aim of the ridge city is to treat urban waste water and reuse it for irrigation uses, activating a new landscape. In Hadimkoy the run-off water is cleansed in the lower zones of the basin and the black city water is treated and used in a zone of precision farming. A f s t u d e e r p l a n Simona Serafino Sustainable tecniques of water uptake In this part of the research it will be looked with interest at some techniques of water uptake at the small scale, which have been used along history in some desert regions. The research will base on the work and experience of Pietro Laureano, an Italian architect and UNESCO consultant for the arid zones, who gathered in the book Water Atlas – traditional knowledge to halt desertification ancient building techniques capable of taking up water from the atmosphere and recovering rainwater. To find out new water sources to play a role in a new water cycle can apply to agriculture as a possible design field. At a first glance, techniques related to the arid-culture practices reported by Pietro Laureano may consist in one example of good agricultural practices. A pilot project of this kind, called the hortus of Tu’rat, is already present in the Salento area. It was built in 2010 in the countryside of Ugento. It aims at using an ancient technique of arid-culture constructing drystone walls to condense the water present in the wind, using it for agriculture. This old technique was used 9000 years ago in Israel in Negev region afflicted by desertification. The dry-stone walls, built in the half-moon shape, work as condense captors. The walls, placed in South-West direction, catch the water present in Libeccio wind, which comes full of water through the Mediterranean Sea. 23 Fig. 25 Orto dei Tu’rat. 24 Fig. 26 Detail orto dei Tu’rat. A f s t u d e e r p l a n Simona Serafino The karst walls, with almost the same condensing capacity of the glass, catch the water present in those winds draining it in the soil during the night hours, maintaining it humid during the night. In the experiment of Cosimo Specolizzi, the creator of the Hortus of Tu’rat, fruit trees and ancient plant that can live without the presence of the water were planted, improving local vegetations in a sustainable way. The second way to catch more water could be cleaning urban waste water reusing it for irrigation use, through the creation of a new sewage system. In the masterplan a new touristic housing development could be studied integrated in the Serre landscape. Fig. 27 Good practices against the erosion problem. (source: OD 205, HASKONING,”Concarplan”, Ekistics 254, january 1977) A f s t u d e e r p l a n Simona Serafino 25 Fig. 28 The serre’s Joniche area . (source: Google Maps). 26 Fig. 29 The Serre Joniche’s area. A f s t u d e e r p l a n Simona Serafino 5. CASE STUDY Case study: the Serre Joniche’s area Within the large Salento province a limited portion will be chosen to apply design strategies related to a renewed water management and provision. Such portion will be that of the Serre Joniche. It consists in a part of land ca. 32km long. Its northwestern most limit is the town of Gallipoli, which consists in the biggest and only historically relevant centre on the coast; it extends then southeastwards parallel to the coastline until Leuca, with an average depht of 15 km. What is interesting about this area as a case study is an interesting geomorphological articulation, whose landscape values are endangered by a number of criticities. Within the Salento area this portion is one of those undergoing the highest desertification risk. The word Serra refers in Italian to low hill formations. The Serre Joniche area, also referred to as the Salento of the Serras, is made up by two main landscape areas: the coastal landscape and the hill landscape, which includes the valleys between the hills. The coastal landscape The coastal landscape is characterized by a variety of morphological systems, the most interesting of which is that of the dunes. These structures consist in one or more parallel lines, behind which there used to be humid areas which have been reclaimed. The only water source in the coastal territory are the irrigation A f s t u d e e r p l a n Simona Serafino canals, which were created during the reclamation and remodelled with concrete riverbeds in the 1950s. The dunes system shows up mainly in the area next to Gallipoli and in that between Torre San Giovanni and Torre Mozza. These areas, once abandoned because of the swamps have changed much during the 1900s. As a consequence of the swamps reclamation, the creation of canals and basins and the plantation of new vegetation to stabilyze the area, these areas have proved fit for a massive touristic invasion. This development, coupled with coastal erosion and abandonment of canals and basins, consists in the main risk factor for the coastal landscape. The serras landscape Serras are low reliefs (they don’t overcome 200 m on sea level) which develop southeastwards and converge in the Leuca’s headland (Finibus Terrae). They are made of a calcareous base dating back to the cretaceous age and characterized by calcareous dorsals which feature woods or olive trees cultivations, in between of which frequent sandy and clayey depressions find place. The geological variety of the soil reflects in an important subterranean hydrography, made of 14m-deep groundwater by the valleys, which favoured in time the localization of human settlements. Such settlements were also advantaged by the protection of the hills against autumn southwestern winds. Superficial water is characterized by the 27 Fig. 30 One of the agricolture canal ending in the sea. Baia Verde, Gallipoli. 28 Fig. 31 One of the artificial basin, in the former wetlands area.Torre Pali, Ugento. A f s t u d e e r p l a n Simona Serafino presence of some endorheic basins, that is half-epigeal and half-hypogeal areas which don’t end up in the sea but in an internal, depressed area called doline or chasm. After meteoric events such carsic formations work as natural drain to the groundwater. The critical points which characterize this area are caused by the alteration of the balance between superficial and subterranean hydrology. On the one hand, groundwater counts on soil’s and superficial formations’ naturalness as a condition for the collection and the percolation of meteoric water. Soil, however, is more and more occupied by buildings, streets and impermeable surfaces which break the continuity of dolines and chasms and increase the risk of floodings. In even worse cases, carsic formations are used as final destinations for sewage waters. On the other hand, the increasing occupation of urban settlements rises the water demand and brings to the digging of wells, which depauperate groundwater and favour the ingression of the saline wedge ever more to the interior of the territory. Fig. 32 View on the urbanization in the sandy valley, from one of the Serre. Alliste. A f s t u d e e r p l a n Simona Serafino 29 Fig. 33 Academy Project Zeuws Vlaanderen P4b. 30 A f s t u d e e r p l a n Simona Serafino 6. MY FASCINATIONS Since I came in The Netherlands, I began to be fascinated by the theme of the abandoned land. I started to look for abandoned areas all over the country. I noticed a big difference between Italy and the Netherlands. While in Italy the abandoned areas have an identity as No Man’s land, in the Netherlands the few existing ones are areas awaiting a decision, as temporary areas. I started to get interested in the beatification that Gilles Clement made of them. After reading The Manifest of the Third Landscape and The Garden in Movement by G. Clement, I started to develop my own personal ideas about them. In the P6 project in Venice I worked on several abandoned islands of the Venice Lagoon and analysing the biotops I saw that these islands have a high biodiversity. The result of the project was a poetic design for the islands of the Lagoon to make them accessible. In P4b project I worked on the Staats-Spaanse Linies in Zeeuws Vlaanderen. After the analysis I decided to design the space between the two lines giving back its original meaning of No Man’s Land. Through an ontpoldering strategy I gave back space to the nature designing a new wetlands area. The theme of the abandoned and awaiting lands is also a very central one in the case study of my research. Salento’s territory has been undergoing a complex process of land abandonment in the past decades. Agricultural territories have been left behind in the urbanization process. Now some of them lie abandoned, A f s t u d e e r p l a n Simona Serafino some others are experiencing a sudden, frenetic real estate development, which bases on no strategic view at all. My graduation project aims at approaching the general land transformation process as well as specific case study proposing a vision in which such waiting areas are given a new meaning. 31 Fig. 34 The hystorical city of Gallipoli. 32 Fig. 35 The dune’s landscape. A f s t u d e e r p l a n Simona Serafino 7. FINAL PRODUCT During my Tentamen 2 I receved a commentary about the missed link between my background as an architect and the current education in landscape architecture. What I would like to do for my graduation proposal is to fill this gap, finding out a strategy to combine the two different scale. The result of my graduation project will be a booklet including: Analysis results of the water circle. Regional model design. The new scenario at the regional scale for a new water cycle will include : - Maps at 1:25000 scale - Schemes to understand the new hydrological strategy - Sections 1:20000 scale Masterplan scale: - Maps at 1:2000 scale - Sections 1:2000 scale - 3D Views Design (zoom of the masterplan): - Maps 1:500 - Sections 1:500 - Collages Fig. 36 The irrigation system in the olive’s cultivations. A f s t u d e e r p l a n Simona Serafino 33 Fig. 37 Cyclists along the agriculture pathways. 34 Fig. 38 Capers plant’s on the calcareous rock. A f s t u d e e r p l a n Simona Serafino 8. COMMISSION MENTOR Lodewijk van Nieuwenhuijze H+N+S Landscapsarchitecten Soesterweg 300 3018 BH Amersfoort NL [email protected] www.hnsland.nl tel. 033-4328036 MEMBER OF THE COMMISSION Jana Crepon Inside Outside Eerste Nassaukade 5 1052 BP Amsterdam NL [email protected] www.insideoutside.nl tel. 020 6810 801 A f s t u d e e r p l a n Simona Serafino MEMBER OF THE COMMISSION Giovanni Luca Tramutola Landscape Architect freelance consultant Member of the Landscape Commission of Unione Comuni Jonica Salentina – Lecce Province- Italy Balistraat 2C 1094JL Amsterdam NL [email protected] www.sap-gt.com tel. ++31(0)622592664 ADVISORS Prof.ssa Paola Viganò Studio Associato Bernardo Secchi Paola Viganò Project Leader of the Territorial Coordination Plan for the Province of Lecce Prof.dr Cohen Ritsema Head of the department in Land Degradation and Development GroupWageningen University- Italy 35 Fig. 39 Red earth at the foot of the Serre landscape. 36 Fig. 40 Centuries-old olive tree. A f s t u d e e r p l a n Simona Serafino 9. PLANNING Schedule before the public presentation 7th September 2012: Handing the Afstuuderplan 21th September 2012: Public presentation of afstuuderplan The graduation time lasts 42 weeks. Every block takes a range of 8 weeks. The last block concludes the Tentamen 3. PART 1 Analysis of the water cycle(21th September – 11th November 2012, week 38-45) It will plan an excursion of 4 days at the site to collect analysis materials, photographic materials and to meet some experts (geologist, water expert, agronomist, meteorologist, etc..) - hystorical analysis - analysis of the current hydrological system - evolution of agriculture - etc. In the first part it will start a research about naturalization issue. 1st commission (week 45) A f s t u d e e r p l a n Simona Serafino PART 2 Ending of the analysis and formulation of the regional model (12 November - 18 January 2013, week 46-3) - working out the designing tools of naturalization in the different landscape frames - research on good practices of land use to halt desertification - choice of the small scale design (prototype, new sustainable housing complex?) 30 November Mentorengesprek 2nd commission (week 51) PART 3 (19 January -17 March, week 4-11) - ending of the regional model - starting of the masterplan fase: study of a relevant section of the landscape Meeting with the expert on desertification issue Coen Ritsema (Professor at the University of Wageningen, Head of the department of Land Degradation and Development Group). 3rd commission (week 7) 37 Fig. 41 Agriculture terrace. 38 Fig. 42 Agriculture terrace on the coast. A f s t u d e e r p l a n Simona Serafino PART 4 (18 March-12 May, week12-19) - ending of the masterplan fase - small scale intervention Planning an excursion in the area with the commission. Meeting with Paola Viganò (Professor at the University of Venice and project leader of the Territorial Coordination Masterplan for the Province of Lecce). 22 March Afstuudeersalon and public presentation 4th commission (week 11) PART 5 Detail (13 May-29 July, week 20-29) - details, producing materials. 5th commission (week 20).Green Light Tentamen 3 (week 26). Fig. 43 Typical farmer’s house built with the technic of the dry-stone wall, remodelated as a touristic accomodation. A f s t u d e e r p l a n Simona Serafino 39 Fig. 44 Abandoned houses (typical Pagghiara) realized with the technique of the drystone wall. 40 Fig. 45 Abandoned house (typical Pagghiara) realized with the technique of the dry-stone wall along one of the road. A f s t u d e e r p l a n Simona Serafino 10. LITERATURE ANCONA V., DELIA E.B., LOPEZ N., PAPPAGALLO G., VITO FELICE URICCHIO, 2010-A Modified soil quality index to Assess the influence of Soil degradation processes on desertification risk: the Apulia Case.- CNR National research Council., IRSA Water Research Institute- Bari, Italy. CALIANDRO A., STELLUTI M., 2005-Ruolo dell’olivicoltura nella lotta alla desertificazione- CNLSD-Bari, Italy DELLE ROSE M., DE MARCO M., FEDERICO A., FIDELIBUS C., INTERNO’ G., ORGIATO W., PISCAZZI A., - Studio preliminare sul rischio di desertificazione nel territorio carsico di Lecce.- Taranto, Italy LINIGER H., CRITCHLEY W.2007. Where the land is greener. Case studies and analysis of soil and water conservation initiatives worldwide. Wocat, Bern MEIJSMANS N., 2010- Design for a region- Sun Academya, Amsterdam MONTANARELLA L., 2010 Indicazione delle aree vulnerabili alla desertificazione in Puglia. European Commission, Joint Research Centre, Institute for Envirnment and Sustainability, Ispra, Italy JOSE’ L. RUBIO & LUIS RECATALA’, 2006- The relevance and consequences of mediterranean desertification including security aspects, Valencia, Spain OD 205, HASKONING 1977-Concarplan. Ekistics 254, january 1977 DOGLIONI A., SIMEONE V., 2010- The influence of climatic changes on aquifers of Salento area- south Italy- Bari, Italy LAUREANO P., 2001 Atlante d’acqua, conoscenze tradizionali per la lotta alla desertificazione. Bollati Boringhieri, Torino, Italy LAUREANO P., 1995, La Piramide Rovesciata, il modello dell’oasi per il pianeta Terra. Bollati Boringhieri, Torino. A f s t u d e e r p l a n Simona Serafino PARISE M., PASCALI V. 2003- Surface and subsurface environmental degradation in the karst of Apulia ( sothern Italy)- Bari , Italy KEPNER G. W., RUBIO J.L., MOUAT D.A., PEDRAZZINI F. 2010. NATO Security through Science Series- C: Environmental Security- Desertification in the Mediterranean Region- Springer, published in cooperation with NATO Public Diplomacy Division, Milton Keynes, UK 41 Fig. 46 The burned serra. 42 Fig. 47 Burned serra. A f s t u d e e r p l a n Simona Serafino VIGANO’ P., 2000. Territories of a new modernity. Electa, Napoli Consulted website PIANO PAESAGGISTICO REGIONE PUGLIA www.paesaggio.regione.puglia.it PIERO CASTORO, Fontane di rugiada http://www.vglobale.it/index. php?option=com_content&view=article&id=2034&catid=345%3Amare+no strum&Itemid=2&lang=it TEODORO GEORGIADIS Il Giardino Pantesco – Un’Altra Dimensione del Clima “Air Wells, Dew Ponds and Fog Fences “Methods to Condense Atmospheric Humidity” di Robert A. Nelson (Rex Research). PIETRO LAUREANO http://www.laureano.it/web/?page_id=8&language=it COSIMO SPECOLIZZI Orto dei T’urat: dal Salento un’arma contro la desertificazione. MERIDIANI http://ortodeiturat.blogspot.com/2008/05/meridiani.html. ISTITUTO NAZIONALE DI OCEANOGRAFIA E GEOFISICA SPERIMENTALE http:// www.ogs.trieste.it/ ADRIANO MAZZARELLA CLIMATOLOGO Università Federico II: I pozzi di rugiada (dall’aria venne l’acqua). www.meteo.unina.it il Napoli del 3.04.2010 A f s t u d e e r p l a n Simona Serafino 43 Afstudeerplan Simona Serafino 21 september 2012 Burgemeester Meinesztraat 9b 3022XE Rotterdam T 0617807529 E [email protected] Academie van Bouwkunst Amsterdam Landschapsarchitectuur September 2012- August 2013