Transcript Location Map - Geospatial World Forum

Estimation of Acreage & Crop Production
through Remote Sensing & GIS Technique
Abhishek Kumar Maurya
Research Scholar
Mahatma Gandhi Chitrakoot Gramodaya
Vishawavidayala Satna (M.P.)
Introduction
Soybean is an important crop in Madhya Pradesh. The crop is grown in
average 21.88 lakh hectare areas. The production and area can be
estimated in a very concise method and in very less time with maximum
accuracy. Remote Sensing technique provides a methodology to map areas
of Soybean field with the help of MODIS (TERRA) Satellite data and GIS
(Geographical Information System) database. MODIS (Moderate-Resolution
Imaging Spectroradiometer) satellite image offers a large choice of
opportunities for operational application in a large area. Study area is
selected and located with the help of time series (June 1st week to October
2nd week MODIS Images) which provides maximum accuracy. A concept of
assessing areas of potential cultivation of Soybean is suggested by means
of GIS technique. Integrating MODIS data with GIS techniques and time
series based assessment (June 1st week to October 2nd week) the actual
areas of Soybean fields have been mapped and yield production have been
predicted. The Soybean acreage area and production accuracy is 80.72%
and there is a 7% increase (compared to 2006) in 2007.
Location Map
Fig-1 Location map of study area
Bhopal, Lat 23°07’ to 23°54’ N, Long 77°12’ to 77°40’ E, Area 2,772 sq. km
Dewas, Lat 20º17' to 23º20' N, Long 75º54' to 77º08' E, Area 7,020 sq. km
Guna, Lat 24º53’ N to 25º6'55 N, Long 77º48' E to 78º16' E, Area 6,308 sq. km
Indore, Lat 22°02’ to 23° 05’ N, Long 75°25 to 76°16’ E, Area 3,898 sq. km
Raisen, Lat 22°47' to 23°33' N, Lang 77°21' to 78°49' E, Area 8,395 sq. km
Rajgarh, Lat 23°27' to 24°17' N, Long 76°11' to 77°14' E, Area 6,154 sq. km
Sagar, Lat 23°10’ to 24°27’ N, Long 78°4’ to 79°21’ E, Area 6,375 sq. km
Sehore, Lat 22°31' to 23°40' N, Long 76°22' to 78°08' E, Area 6,578 sq. km
Shajapur, Lat 23º06' to 24º19' N, Long 75º41' to 77º02' E, Area 6,196 sq.km
Ujjain, Lat 23º18’ to 24019’ N, Long 75º45’ to 76058 E, Area 6,091 sq. km
Vidisha, Lat 23°21' to 24°22' N, Long 77°15' to 78°18' E, Area 7,371 sq. km
Map of M.P. State
Fig-2 Input Image in parts of Madhya Pradesh (MODIS Terra 250 m. Resolution,
7-2-1 Band Combination) 1June 2007 with district boundary
MODIS Data
Fig-3 Input Image in parts of Madhya Pradesh (MODIS Terra 250 m. Resolution,
7-2-1 Band Combination) 1october 2007 with district boundary
MODIS satellite data and topographical sheets were used for Remote Sensing
and GIS analysis. Maps showing the administrative boundary of Soybean
cultivated area.
Methodology
2005 Image
Geo-referencing
Administrative
boundary overlaying and Sub-setting
Sub-Setting Study Area
Classification
2006 Image
Geo-referencing
Administrative boundary overlaying
and Sub-setting
Sub-Setting Study Area
Classification
Calculate the Acreage Estimation
2007 Image
Geo-referencing
Administrative boundary overlaying
and Sub-setting
Sub-Setting Study Area
Classification
Acreage Estimation
District wise acreage estimation of Soybean was done by using
the following mathematical calculations-
1. Area in meter2 =Numbers of pixels of clusters * Resolution of the
image
2. Area in hectare= Area in meter2 / 10,000
3. For MODIS - Area in meter2 =Numbers of pixels of clusters *
250*250
Flow Chart of Yield Estimation
2005 Image
Masking Process
(Removed Other Crops)
NDVI Value
Co-Relation of
Production
2006 Image
Masking Process
(Removed Other Crops)
NDVI Value
Co-Relation of
Production
Soybean Prediction in 2007
2007 Image
Masking Process
(Removed Other Crops)
NDVI Value
Co-Relation of
Production
Table-1 Extract NDVI values 2005, 2006, 2007 in parts of
Madhya Pradesh.
The production estimation was done using the following mathematical
calculationsProduction= Estimated Acreage * Predicted Yield
Result
The process indicated in methodology has been
used to extract the Soybean area in parts of
Madhya Pradesh. The estimated Soybean area
of Madhya Pradesh (districts-wise) is given in
the table below. On the image, green color is
assigned to Soybean in the table here gives the
pixels and calculated area in parts of Madhya
Pradesh district wise in Table 2.
Table-2 Acreage of Soybean crop in parts of Madhya Pradesh
Table-3 Comparison of acreage of year 2007 with acreage
in the years 2005 & 2006
The total acreage of soybean estimated using Remote Sensing and GIS techniques in the
different major districts of Madhya Pradesh is 26.5 in Lakh ha.
Based on the satellite derived estimates of soybean acreage, Ujjain district has been
adjudged the largest grower of Soybean during the current Kharif season with an estimated
acreage of 421,106 ha. The other two major soybean growing districts, Shajapur (3, 08,087 ha)
and Sagar (3,07,331 ha) have almost similar acreage of area under soybean.
In Bhopal, although the acreage under soybean has increased as compared to last two years,
but it is still the district with least acreage of soybean among the districts under study.
Table-4 Comparison of Satellite Estimated yield of year 2007
with that of field derived yield in the years in 2005 & 2006
Fig-5 Multi dates MODIS images NDVI
values of soybean crop in 2007
2007
13th September
2006
15th September
2005
Fig-6 NDVI values soybean crop 2005, 2006 and 2007 in parts of
Madhya Pradesh on the Bar Chart
12th September
0.742
0.731
0.725
0.715
0.72
0.725
0.73
0.735
Soyabin Yield Comparing 2005, 2006 & 2007
0.74
0.745
Table-5 Total Soybean production in parts of M.P
Area in Lakh ha and Production Lakh tonne
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