LAND RESOURCE INVENTORY AND SOCIO-ECONOMIC STATUS OF FARM HOUSEHOLDS FOR WATERSHED PLANNING AND DEVELOPMENT CHYAMANAHALLI-1 (4D5B1I1c) MICROWATERSHED Hatthakuni & Yadgir Hobli, Yadgir Taluk and District, Karnataka
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Title |
LAND RESOURCE INVENTORY AND SOCIO-ECONOMIC STATUS OF FARM HOUSEHOLDS FOR WATERSHED PLANNING AND DEVELOPMENT CHYAMANAHALLI-1 (4D5B1I1c) MICROWATERSHED Hatthakuni & Yadgir Hobli, Yadgir Taluk and District, Karnataka
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Creator |
Rajendra Hegde, Ramesh Kumar, S.C., B.A. Dhanorkar, S. Srinivas, M.Lalitha, K.V. Niranjana, R.S. Reddy and S.K. Singh
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Subject |
Details of Soil Survey, Soil constraints, Soil and Water Conservation, Soil Suitability, Economic Land Evaluation, Watershed Planning, Sujala – III Project
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Description |
Not Available
The land resource inventory of Chyamanahalli-1 Microwatershed was conducted using village cadastral maps and IRS satellite imagery on 1:7920 scale. The false colour composites of IRS imagery were interpreted for physiography and the physiographic delineations were used as base for mapping soils. The soils were studied in several transects and a soil map was prepared with phases of soil series as mapping units. Random checks were made all over the area outside the transects to confirm and validate the soil map unit boundaries. The soil map shows the geographic distribution and extent, characteristics, classification, behavior and use potentials of the soils in the microwatershed. The present study covers an area of 486 ha in Yadgir taluk & district, Karnataka. The climate is semiarid and categorized as drought-prone with an average annual rainfall of 866 mm, of which about 652 mm is received during south-west monsoon, 138 mm during north-east and the remaining 76 mm during the rest of the year. An area of 425 ha in the microwatershed is covered by soils, a area about 12 ha in the microwatershed is covered by rock outcrops and about 49 ha by others (habitation and water bodies). The salient findings from the land resource inventory are summarized briefly below. The soils belong to 9 soil series and 14 soil phases (management units) and 4 land management units. The length of crop growing period is about 120-150 days starting from 1st week of June to 4th week of October. From the master soil map, several interpretative and thematic maps like land capability, soil depth, surface soil texture, soil gravelliness, available water capacity, soil slope and soil erosion were generated. Soil fertility status maps for macro and micronutrients were generated based on the surface soil samples collected at every 320 m grid interval. Land suitability for growing 29 major agricultural and horticultural crops were assessed and maps showing the degree of suitability along with constraints were generated. An area about 425 ha (87%) in the microwatershed is suitable for agriculture. About 67 per cent area of the microwatershed has soils that are moderately deep to very deep (75 - >150 cm) and 20 per cent soils are moderately shallow (50 -75 cm). About 12 per cent area in the microwatershed has loamy soils and 75 per cent clayey soils at the surface. About 85 per cent area in the microwatershed has non gravelly (200 mm/m) in available water capacity, 14 per cent is medium (101-150 mm/m), 33 per cent is low (51-100 mm/m) in available water capacity. About 87 per cent area of the microwatershed has very gently sloping (1-3% slope) land. An area of about 72 per cent area is moderately (e2) eroded and 15 percent soils are slightly eroded (e1). An area of about 40 per cent soils are neutral (pH 6.5-7.3) in soil reaction, 48 per cent soil are slightly to moderately alkaline (pH 7.3-8.4). The Electrical Conductivity (EC) of the soils in the entire cultivated area of the microwatershed is dominantly 0.75%) in organic carbon. About 38 percent soils are medium (23-57 kg/ha) in available phosphorus and 49 percent soils are high (>57kg/ha)in available phosphorus. About 51 percent of the soils are medium (145-337kg/ha) in available potassium and 36 percent area high(>337 kg/ha) in available potassium. Available sulphur is low ( Watershed Development Department, Government of Karnataka (World Bank Funded) Sujala –III Project |
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Date |
2021-07-25T01:47:57Z
2021-07-25T01:47:57Z 2019-12-31 |
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Type |
Project Report
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Identifier |
Rajendra Hegde, Ramesh Kumar, S.C., B.A. Dhanorkar, S. Srinivas, M.Lalitha, K.V. Niranjana, R.S. Reddy and S.K. Singh (2019). “Land Resource Inventory and Socio- Economic Status of Farm Households for Watershed Planning and Development of Chyamanahalli-1 (4D5B1I1c) Microwatershed, Hatthakuni & Yadgir Hobli, Yadgir Taluk and District, Karnataka”, ICAR-NBSS&LUP Sujala MWS Publ.328, ICAR – NBSS & LUP, RC, Bangalore. p.133 & 33.
Not Available http://krishi.icar.gov.in/jspui/handle/123456789/50022 |
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Language |
English
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Relation |
328;
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Publisher |
ICAR::National Bureau of Soil Survey and Land Use Planning, Regional Centre, Bengaluru & Watershed Development Department, Government of Karnataka (Sujala-III Project)
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