Gis development in the department of agriculture sabah

Transcription

Presented by
Elizabeth Malangkig
Assistant Director (Research)
12/7/2010
PROMENADE HOTEL TAWAU
1
I.
II.
III.
IV.
V.
INTRODUCTION
FUNCTION
HISTORY
GIS
CONCLUDING REMARKS
Note: This Is Not A Technical Presentation
12/7/2010
2
OBJECTIVE OF THIS PAPER:
To share experience on GIS
development within DOA Sabah
To inform on the capacity of the DOA
in Land Resource Management
12/7/2010
3
DOA Sabah through the Land Research and
Resource Management Section conducts the ongoing project recognized as the Present Land
Use Survey (PLUS) with the objective:
To Buildup And Update Spatial Data on The
Present Land Use Pattern Of The State Of Sabah
…………….Land Resource Management
12/7/2010
4
LANDUSE COVER 2009
12/7/2010
5
o
Conducts Soil Survey
o Reconnaissance
o Semi Detail
o Detail
SOIL CLASSIFICATION
USDA, Soil Taxonomy
Order : Spodosols
Suborder: Orthods
Great group: Haplorthods
Subgroup: Typic
Haplorthods
Family: sandy, siliceous,
isohyperthermic
FAO/Unesco Legend
Soil Group: Podzols
Soil Unit: Orthic Podzols
Local Classification
Sabah: Silimpopon Family
Sarawak: Silantik Series
Pen. Malaysia: No
equivalent
12/7/2010
6
Morphology & Physical

Diagnostic Horizon: Albic
E and Spodic B.

Colour: light grey of E,
dark brown to brownish
of B.

Texture: loamy sand.

Consistence: friable at
<30cm and slightly
compact to compact at
31cm to 50cm (Fe&Al).

Structure: structureless
and single grain.

Drainage: somewhat
imperfectly to moderately
well drained.
12/7/2010
Chemical Properties

pH : acid to strongly acid

Org. Carbon: very low.

Easily soluble P: low to
very low.

Exch. Bases: low.

Base saturation: high on
surface but very low on
the subsurface.

CEC: low to very low.

ECEC: low

Exch. Al : moderate on the
upper horizon but high on
the lower horizon (60% 90% Al saturation).
7
Soil Limitation

Soil texture of loamy
sand.

Soil structure.

Low nutrients status.

Shallow soil profile.
Crop Suitability
Only recommended to
short rooting crops such
as vegetables and cash
crops, or pasture.
Soil Management

Applying organic
material and adequate
fertilizer.

Liming
12/7/2010
8
Land Suitability Evaluation
(for Agricultural Crops)
o Soil Classification
o Topography
o Climate (Rainfall)
o Crop Requirement
o
o
Crop Suitability
12/7/2010
9

Aerial Photography :



12/7/2010
Taken
between
1958–1970
by
RAF
(1:50,000/60,000).
Labuk Valley (1:30,000) taken in 1962 for the
UNDP study).
1:25,000 scale taken by Forestal Ltd.
Vancouver Canada under the auspices of the
Colombo Plan Canadian Aid for Forest
Inventory Purposes.
10




Topographic maps: 1:500 000 published by
Land and Survey Sabah in 1964 (DNMM
MISC. 37)
Maps 1:50,000 also available published by
British Directorate of Overseas Survey or
Directorate of Military (DMS)
Geology and Landform (Collenette 1954,
1958, 1965; Fitch 1955, 1959; Wilford, 1960;
and Wilson 1961; Wilson & Wong 1964)
1970 – First Land Cover for most part of
Sabah
 1:50,000 scale
 Photogrammetry
 2009-2010 – Converted to Digital
12/7/2010
11


1993 (6th. MP) – GIS Technology
introduced into DOA Sabah
Initial start-up
PC ArcInfo
 Sun Workstation
 DOS
 Digitising Table


Mainly for conversion of Land Use Maps
into Digital Maps
12/7/2010
12



One of the Pioneer in GIS (Sabah)
Present Land Use Study (PLUS)
 Soil Resources
Capacity :
 Hardware & Software:
- ArcGIS ArcEditor
- ArcGIS ArcView
- Geomedia Professional
- ENVI – Image processing software
- R2V – Raster to Vector
- Global Mapper
12/7/2010
13

1970 – First Land Cover for most part of
Sabah




8th. Malaysia Plan



1:50,000 scale
Photogrammetry
2009-2010 Converted to Digital Data
Use of Satelite Imagery
Landsat, RadarSat
9th. Malaysia Plan
SPOT 4, SPOT 5 for Land Cover
 IFSAR for DEM, DTM, Slope Map

12/7/2010
14
SLOPE MAP DERIVED FROM IFSAR DTM
LAND USE
12/7/2010
15
LANDUSE COVER
FOR NORTHERN
SABAH
SOURCE:
SPOT 5 2009
12/7/2010
16
LAND USE (2000)
12/7/2010
17

Data Conversion (Digital Geospatial
Data)




12/7/2010
Soil Data (Soils of Sabah, NB50 Series, 1974)
Land Capability Classification Project (LCCP
Map)
Detail Soil Survey Reports/Maps
District Soil Survey Reports/Maps
18
12/7/2010
19
12/7/2010
20
AGRO-CLIMATIC MAP 1997
12/7/2010
21
DISTRIBUTION OF SOILS SUITABLE FOR AGRICULTURE
12/7/2010
22
HOW DO WE USE GIS?
STRENGTH OF GIS
 Integration and Visualisation tool
 Data Organisation
 Data Analysis
 Aggregation of Data on the basis of
geographic location
 Spatial Analysis
An example
CROP SUITABILITY DETERMINATION
12/7/2010
23
12/7/2010
CROP SUITABILITY
DETERMINATION
SOIL SUITABILITY
CLASSIFICATION
SOIL SURVEY
MAPPING UNIT
- LIMITATION TO CROP
GROWTH
- SUITABILITY CLASSES
- CROP
REQUIREMENTS(Climate,
Soil, Topography)
- Crop Suitability
(Suitable, Marginal,
Unsuitable)
24
Soil Properties
Soil
characteristics
Terrain
Slope
Effective
depth
Texture
soil
Structure
Climate
Consistency
Drainage
Physiography
CEC (meq./100 g
soil)
Soil acidity (pH
values)
Peat layer (depth
in cm)
Non-Limiting
Desirable
0 - 2 degrees
Or
Degree or intensity of limitation
Moderate
Serious
2 - 6 degrees
6 - 12 degrees
>90 cm
75 to 90 cm
50 to 75 cm
Very
serious
>12
degrees
<50 cm
clay; silty clay
sandy clay; clay
loam;
silty
clay
loam;
weak to moderate,
fine to medium subangular blocky
loam;
sandy
clay
loam;
sandy loam;
loamy
sand;
sand
well
to
moderately well
2.00 to 4.00
excessive
>8.00
imperfect
moderately well
4.00 to 8.00
> 5.0
4.5 – 5.0
4.0 - 4.5
< 4.0
< 10cm
10 - 30
30 - 50
> 50
weak coarse subangular
blocky;
structure-less
plough layer below
30 cm
very poor to poor
to
<2.00
Landuse
Land Suitable for Padi
12/7/2010
25
• GIS
is a tool
• Data visualisation, integration, spatial
analysis
• Informed decision making
• Efficient, productive
• Continually evolving for better efficiency
• Easy to learn
12/7/2010
26

THANK YOU FOR YOUR KIND ATTENTION
VIEW OF KUNDASANG FROM DREAM WORLD RESORT
12/7/2010
27

Gis development in the department of agriculture sabah

Transcription

Similar documents