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Researcher Sheela, Rani S.
Advisor Anil, Kumar K. S.
Source KrishiKosh-Indian National Agricultural Research System
Content type Text
Educational Degree Master of Science (M.Sc.)
Publisher University of Agricultural Sciences GKVK
File Format PDF
Language English
Subject Domain (in DDC) Technology ♦ Agriculture & related technologies
Subject Keyword Soil Science and Agriculture Chemistry ♦ Land Resources Assessment of Ayyammanahalli
Abstract Detailed soil survey of Ayyammanahalli watershed, Doddaballapur taluk, Bangalore Rural District was conducted using cadastral map as base and superimposing over 1:12,500 scale satellite imagery as well as Google Earth images. Five soil series have been identified and mapped 10 phases. The dominant soils were very deep, fineloamy and slightly acidic, developed on very gently sloping upland with sandy loam surface having slight erosion risk and occupy 22.7 per cent of study area. Very deep, dark red, fine, neutral soils developed on the upper sector of very gently sloping upland with sandy clay loam surface having nil or slight erosion risk occupy 16.9 per cent. Soils developed on gently sloping low lands are moderately shallow, dark yellowish brown, fine-loamy, slightly acid with moderate erosion risk and rockiness and occupy 15.3 per cent. Degraded lands occupy 9.7 per cent; rock outcrops by 5.7 per cent and gullied land 5.2 per cent are the areas which attract immediate attention for rehabilitation. Study revealed that good cultivable lands occupy 64.4 per cent of mapped area with slight limitations of soil and/or erosion. Moderately good cultivable lands occupy 12.3 per cent, may perform better under plantations with investment. Marginal lands occupy 2.6 per cent with severe limitations and require major investments for commercial crops. Study area is suited for the present land use; i.e. cultivation of Red Gram, Maize, Ground nut, Ragi and Sorghum, Orchards and Eucalyptus with soil conservation. Study emphasizes use of Google Earth images and cadastral maps as base and GPS locations for detailed soil survey and assessment of land resources for watershed development.
Educational Use Research
Education Level UG and PG
Learning Resource Type Thesis
Publisher Place Bangalore
Size (in Bytes) 5.75 MB
Page Count 211