SPATIAL TECHNIQUE IN IRRIGATION POTENTIAL EVALUATION & CROP SUITABILITY ANALYSIS IN PEDHI CATCHMENT, MAHARASHTRA
Click to edit Master subtitle style PREETI DHAKADE S K SRIVASTAVA Dr. R N SANKHUA
1
Objectives To evaluate physical land characteristics for suitability of surface irrigation & suitability for Orange & Cotton crops 78°0'E
21°10'N
77°55'E
21°5'N
77°50'E
21°10'N
77°45'E
21°5'N
77°40'E
FAO guidelines (1976&1991) -crop & irrigation suitability. MCDE used to evaluate physical land characteristics for surface irrigation
21°0'N 20°55'N 20°50'N
21°0'N 20°50'N
20°55'N
Legend WETLAND SPARSE VEGETATION
SETTLEMENTS SHALLOW WATER
0
10 Km
DENSE VEGETATION
20°45'N
20°45'N
DEEP WATER
Factors - slope, soil drainage, soil texture, soil depth, soil type &LU/LC.
Climatic parameters, soil, slope for crop suitability
DATA USED LISS-III images & Cartosat DEM RF, evap, sunshine, humidity, wind speed, temp. Soil depth, texture, drainage, type, Soil erosion (ERM)
BARREN LAND AGRICULTURE 77°40'E
77°45'E
77°50'E
77°55'E
2 78°0'E
Methodology LISS III satellite data
Topographic Map
DIP: Georef, Image Enhancement
Digitization Digitization-static layers
Classification
Land LULC Use
SoilSoil Texture Texture
ContourContour
SoilSoil Depth Depth
SoilSoil Drainage Drainage
DEM
Soil Soil Type Type
Climatic
Slope Reclassified Reclassified MCDE Pair Wise combination-AHP Weighted Linear Combation
Irrig Suitability Map
Crop Requirement Crop Requirement
Crop Suitability Map 3
Sc =0.28 SD + 0.21 Dep + 0.16 Tex +0.12 SL + 0.11 T +0.08 RF +0.05 ST+0.03 LU AHP Priority
Sc=ÎŁWiXi Wi = Weight of factor i Xi = criterion score of factor i
Sc =Suitability for Cotton SD = Soil drainage Dep= Soil depth Tex = Soil texture SL= Slope T= Temp RF =Rainfall ST = Soil type LU = Land use
Vector 0.28
Soil drainage Soil depth
0.21
Texture
0.16
Slope
0.12
Temperature
0.11
Rainfall
0.08
Soil type
0.05
Land use
0.03
Criteria
Condition
Orange
Cotton
Optimum
0-10%
<20%
Marginal
10-20%
2-8%
Soil Drainage
Optimum
Well
Well
Marginal
Moderately well
Moderately well
Texture
Optimum
Loam
clay
Marginal
Silty clay Loam
Silty Loam
Optimum
>100cm
>100cm
Marginal
50-80cm
<80cm
Slope
Soil Depth
3/31/13
4
Orange Pedhi
Cotton
Orange 3/31/13
5
Soil erosion Map
Soil Texture Map 77°40'E
77°45'E
77°50'E
77°55'E
78°0'E
78°0'E
21°0'N
21°0'N 21°0'N
20°55'N
20°55'N 20°55'N
21°5'N
21°5'N
21°5'N 21°5'N
SBI, DD, FF, NDVI, slope, MPF
21°10'N
77°55'E
Loam, silt clay loam, clay, clay loam &sandy loam
21°0'N
77°50'E
20°55'N
77°45'E
21°10'N 21°10'N
21°10'N
77°40'E
Legend
Ranks for Soil Erosion
clayey Boundary Clay_loam
0
Gravelly_sandy_loam Habitation_Mask
5
10 Km
0 20°40'N
6 7
77°50'E
77°55'E
78°0'E
10 Km
sandy_clay_loam waterbody_Mask
77°40'E
3/31/13
77°45'E
77°50'E
77°55'E
6
78°0'E
20°40'N
4
77°45'E
Gravelly_sandy_clay_loam
20°45'N
20°45'N
3
77°40'E
Gravelly_clay_loam
20°45'N
2
20°45'N
Gravelly_clay
1
0
20°50'N
20°50'N
Silty_loam
20°50'N
20°50'N
Legend
Reclassified Slope Map
Reclassified Soil drainage Map
21°5'N
3 4
0
10 Km
5 6
4
3/31/13
77°40'E
77°45'E
77°50'E
77°55'E
20°45'N
20°45'N
20°45'N
3
20°45'N
2
2
77°40'E
20°50'N
20°55'N
21°0'N
21°5'N
Soil Drainage Ranks 1
1
9 Km
78°0'E
Legend
Ranks for Slope
0
77°55'E
21°10'N
77°50'E
21°0'N
21°5'N 20°50'N
20°55'N
21°0'N
21°5'N
21°0'N
20°55'N
20°50'N
Legend
77°45'E
21°10'N
77°40'E
78°0'E
20°55'N
77°55'E
20°50'N
77°50'E
21°10'N
77°45'E
21°10'N
77°40'E
78°0'E
77°45'E
77°50'E
7
77°55'E
78°0'E
LULC
Reclassified Soil depth map 77°50'E
77°55'E
78°0'E
77°40'E
77°45'E
77°50'E
77°55'E
78°0'E
21°5'N 21°0'N
21°0'N 21°0'N 20°55'N 20°55'N
20°55'N
21°0'N 20°55'N
21°5'N
21°5'N 21°5'N
21°10'N
21°10'N 21°10'N
77°45'E
21°10'N
77°40'E
Legend
1 2
4
Habitation_Mask
5
Shallow to Moderate Shallow_to_very_shallow
20°45'N
3
Deep
Moderately_deep 20°45'N
20°50'N
20°50'N 20°50'N
Legend
0
20°45'N 20°45'N
20°50'N
LU/LC Ranks
6
0
7
10 Km
8
Very_deep
77°40'E
shallow
10 Km 77°45'E
waterbody_mask
77°50'E
77°55'E
77°40'E
78°0'E
20°40'N
20°40'N
0
3/31/13
77°45'E
77°50'E
77°55'E
8
78°0'E
77°46'E
77°51'30"E
77°57'E
IRRIGATION SUITABILITY MAP
21°11'3
77°40'30"E
20°49'30"N
20°55'N
21°0'30"N
21°6'N
S=ΣWiXj
Legend
S = 0.42 SL+ 0.21SD+ 0.14 Dep+0.10 Tex+0.08 LU+0.05 ST S - suitability of irrigation SL - Slope SD - Soil drainage Dep - soil depth Tex – Soil Texture LU - Land use ST - Soil type
Suitable Not Suitable Marginally MarginallySuitable suitable Marginally
0
5
Marginally Not suitable Very Suitable Not Suitable
10 Km
Suitbale
3/31/13
77°40'30"E
77°46'E
77°51'30"E
77°57'E
20°44'N
Very Suitable Not Suitable
9
SUITABILITY MAP FOR COTTON
SUITABILITY MAP FOR ORANGE 78°0'E
77°50'0"E
12.4
S2
10.2
S1
59.1
20°40'N
20°40'N
10 Km
77°40'E
77°45'E
77°50'E
77°55'E
78°0'E
20°45'0"N
Soil-100 cm, well drained, gentle slope, clay to fine loamy
N
8.7
S4
10.1
S3
12.6
S2
11.5
S1
57.1
Legend Permanantly Not Suitable Very Suitable
Not Suitable Suitable
Marginally suitable Marginally Suitable Marginally Not Marginally Not Suitable
0 20°40'0"N
20°45'N
20°45'N
Suitability Classes Very Suitable Not Suitable Suitable Marginally Not Suitable Marginally suitable Marginally Suitable Marginally Not suitable Suitable NotSuitable Suitable Very
% of land
20°50'0"N
S3
20°55'0"N
10.1
20°50'0"N
S4
Legend
0
21°5'0"N
21°5'0"N 21°0'0"N
21°5'N 21°0'N
8.2
20°55'N
20°55'N
20°50'N
N
78°0'0"E
Suitability
% of land
20°50'N
21°0'N
21°5'N
U O Y K N A TH Suitability
77°55'0"E
21°10'0"N
77°45'0"E
21°10'0"N
21°10'N
21°10'N
77°40'0"E
21°0'0"N
77°55'E
20°55'0"N
77°50'E
20°45'0"N
77°45'E
5
suitable Suitable
10 Km
Not Suitable
Very Suitable
3/31/13 77°40'0"E
10 77°45'0"E
77°50'0"E
77°55'0"E
78°0'0"E
20°40'0"N
77°40'E