spatial technique in irrigation potential evaluation & crop suitability analysis
DESCRIPTION
Seminar Session 3TRANSCRIPT
Click to edit Master subtitle style
1
PREETI DHAKADES K SRIVASTAVA Dr. R N SANKHUA
SPATIAL TECHNIQUE IN IRRIGATION POTENTIAL EVALUATION & CROP SUITABILITY ANALYSIS
IN PEDHI CATCHMENT, MAHARASHTRA
2
Objectives To evaluate physical land characteristics for suitability of surface
irrigation & suitability for Orange & Cotton crops
78°0'E
78°0'E
77°55'E
77°55'E
77°50'E
77°50'E
77°45'E
77°45'E
77°40'E
77°40'E
21°1
0'N
21°1
0'N
21°5
'N
21°5
'N
21°0
'N
21°0
'N
20°5
5'N
20°5
5'N
20°5
0'N
20°5
0'N
20°4
5'N
20°4
5'N
0 10 Km
Legend
WETLAND
SPARSE VEGETATION
DEEP WATER
SETTLEMENTS
SHALLOW WATER
DENSE VEGETATION
BARREN LAND
AGRICULTURE
LISS-III images & Cartosat DEM RF, evap, sunshine, humidity, wind
speed, temp. Soil depth, texture, drainage, type,
Soil erosion (ERM)
DATA USED
FAO guidelines (1976&1991) -crop & irrigation suitability.
MCDE used to evaluate physical land characteristics for surface irrigation
Factors - slope, soil drainage, soil texture, soil depth, soil type &LU/LC.
Climatic parameters, soil, slope for crop suitability
3
MethodologyLISS III satellite data Topographic Map
DIP: Georef, Image Enhancement
Classification
Digitization
Contour
Slope
Reclassified
Crop Requirement
Crop Suitability Map
Land Use Soil Texture
Soil Depth
Soil Drainage
Soil Type
Reclassified
MCDEPair Wise combination-AHPWeighted Linear Combation
Irrig Suitability Map
Digitization-static layers
Contour
DEM
Crop Requirement
LULC Soil Texture
Soil Depth
Soil Drainage
Soil Type
Climatic
43/31/13
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
Sc=ΣWiXi
Sc =Suitability for CottonSD = Soil drainageDep= Soil depth Tex = Soil textureSL= SlopeT= TempRF =RainfallST = Soil typeLU = Land use
Criteria Condition Orange Cotton
Slope Optimum 0-10% <20%Marginal 10-20% 2-8%
Soil Drainage
Optimum Well WellMarginal Moderately well Moderately well
Texture Optimum Loam clay
Marginal Silty clay Loam Silty Loam
Soil Depth Optimum >100cm >100cmMarginal 50-80cm <80cm
Wi = Weight of factor iXi = criterion score of factor i
AHP Priority Vector
Soil drainage 0.28
Soil depth 0.21
Texture 0.16Slope 0.12Temperature 0.11Rainfall 0.08Soil type 0.05Land use 0.03
53/31/13
Pedhi
Orange Cotton
Orange
63/31/1378°0'E
78°0'E
77°55'E
77°55'E
77°50'E
77°50'E
77°45'E
77°45'E
77°40'E
77°40'E
21°1
0'N
21°1
0'N
21°5
'N
21°5
'N
21°0
'N
21°0
'N
20°5
5'N
20°5
5'N
20°5
0'N
20°5
0'N
20°4
5'N
20°4
5'N
0 10 Km
LegendRanks for Soil Erosion
0
1
2
3
4
5
6
7
Soil erosion Map Soil Texture Map
78°0'E
78°0'E
77°55'E
77°55'E
77°50'E
77°50'E
77°45'E
77°45'E
77°40'E
77°40'E
21°1
0'N
21°1
0'N
21°5
'N
21°5
'N
21°0
'N
21°0
'N
20°5
5'N
20°5
5'N
20°5
0'N
20°5
0'N
20°4
5'N
20°4
5'N
20°4
0'N
20°4
0'N
0 10 Km
Legend
Silty_loam
clayey
Boundary
Clay_loam
Gravelly_clay
Gravelly_clay_loam
Gravelly_sandy_clay_loam
Gravelly_sandy_loam
Habitation_Mask
sandy_clay_loam
waterbody_Mask
Loam, silt clay loam, clay, clay loam &sandy loam
SBI, DD, FF, NDVI, slope, MPF
73/31/1378°0'E
78°0'E
77°55'E
77°55'E
77°50'E
77°50'E
77°45'E
77°45'E
77°40'E
77°40'E
21°1
0'N
21°1
0'N
21°5
'N
21°5
'N
21°0
'N
21°0
'N
20°5
5'N
20°5
5'N
20°5
0'N
20°5
0'N
20°4
5'N
20°4
5'N
0 9 Km
LegendRanks for Slope
1
2
3
4
78°0'E
78°0'E
77°55'E
77°55'E
77°50'E
77°50'E
77°45'E
77°45'E
77°40'E
77°40'E
21°1
0'N
21°1
0'N
21°5
'N
21°5
'N
21°0
'N
21°0
'N
20°5
5'N
20°5
5'N
20°5
0'N
20°5
0'N
20°4
5'N
20°4
5'N
0 10 Km
Legend
Soil Drainage Ranks1
2
3
4
5
6
Reclassified Slope Map Reclassified Soil drainage Map
83/31/1378°0'E
78°0'E
77°55'E
77°55'E
77°50'E
77°50'E
77°45'E
77°45'E
77°40'E
77°40'E
21°1
0'N
21°1
0'N
21°5
'N
21°5
'N
21°0
'N
21°0
'N
20°5
5'N
20°5
5'N
20°5
0'N
20°5
0'N
20°4
5'N
20°4
5'N
0 10 Km
LegendLU/LC Ranks
0
1
2
3
4
5
6
7
8
LULCReclassified Soil depth map
78°0'E
78°0'E
77°55'E
77°55'E
77°50'E
77°50'E
77°45'E
77°45'E
77°40'E
77°40'E
21°1
0'N
21°1
0'N
21°5
'N
21°5
'N
21°0
'N
21°0
'N
20°5
5'N
20°5
5'N
20°5
0'N
20°5
0'N
20°4
5'N
20°4
5'N
20°4
0'N
20°4
0'N
0 10 Km
Legend
Shallow_to_very_shallow
Deep
Habitation_Mask
Moderately_deep
Very_deep
shallow
waterbody_mask
Shallow to Moderate
93/31/1377°57'E
77°57'E
77°51'30"E
77°51'30"E
77°46'E
77°46'E
77°40'30"E
77°40'30"E21
°11'
30"N
21°1
1'30
"N
21°6
'N
21°6
'N
21°0
'30"
N
21°0
'30"
N
20°5
5'N
20°5
5'N
20°4
9'30
"N
20°4
9'30
"N
20°4
4'N
20°4
4'N
0 105 Km
Legend
Not Suitable
Marginally Not Suitable
Marginally Suitable
Suitbale
Very Suitable
IRRIGATION SUITABILITY MAP
S = 0.42 SL+ 0.21SD+ 0.14 Dep+0.10 Tex+0.08 LU+0.05 ST
S - suitability of irrigationSL - SlopeSD - Soil drainageDep - soil depthTex – Soil TextureLU - Land useST - Soil type
S=ΣWiXj
Very SuitableSuitableMarginally suitableMarginally Not suitableNot Suitable
103/31/1378°0'E
78°0'E
77°55'E
77°55'E
77°50'E
77°50'E
77°45'E
77°45'E
77°40'E
77°40'E
21°1
0'N
21°1
0'N
21°5
'N
21°5
'N
21°0
'N
21°0
'N
20°5
5'N
20°5
5'N
20°5
0'N
20°5
0'N
20°4
5'N
20°4
5'N
20°4
0'N
20°4
0'N
0 10 Km
LegendSuitability Classes
Not Suitable
Marginally Not Suitable
Marginally Suitable
Suitable
Very Suitable
SUITABILITY MAP FOR ORANGE
78°0'0"E
78°0'0"E
77°55'0"E
77°55'0"E
77°50'0"E
77°50'0"E
77°45'0"E
77°45'0"E
77°40'0"E
77°40'0"E
21°1
0'0"
N
21°1
0'0"
N
21°5
'0"N
21°5
'0"N
21°0
'0"N
21°0
'0"N
20°5
5'0"
N
20°5
5'0"
N
20°5
0'0"
N
20°5
0'0"
N
20°4
5'0"
N
20°4
5'0"
N
20°4
0'0"
N
20°4
0'0"
N
0 105 Km
Not Suitable
Legend
Very Suitable
Permanantly Not Suitable
Marginally Suitable
Marginally Not Suitable
Suitable
SUITABILITY MAP FOR COTTON
Suitability
% of land
N 8.2
S4 10.1
S3 12.4
S2 10.2
S1 59.1
Suitability
% of land
N 8.7
S4 10.1
S3 12.6
S2 11.5
S1 57.1
Soil-100 cm, well drained, gentle slope, clay to fine loamy
THANK
YOU
Very SuitableSuitableMarginally suitableMarginally Not suitableNot Suitable
Very SuitableSuitableMarginally suitableMarginally Not suitableNot Suitable