Soil and Rain Water Conservation for Watershed Management
| dc.contributor.advisor | SATHYAMURTHY, R | |
| dc.contributor.author | SHASHIOHAR, K.C | |
| dc.date.accessioned | 2019-02-20T04:27:27Z | |
| dc.date.available | 2019-02-20T04:27:27Z | |
| dc.date.issued | 2002-02-02 | |
| dc.description.abstract | Field experiments on " Soil and rainwater conservation for watershed management" were carried out from 1990 to 1999 at All India Co-ordinated Research Project on Dryland Research Centre ( 12° 58* N latitude, 77° 35' E longitude, 930 mean sea level, mean annual rainfall of 902.5 mm), Gandhi Krishi Vignana Kendra, University of Agricultural Sciences, Bangalore, Karnataka State, India. The soils of the site belong to Vijayapura series with a good moisture retention and well drained with an infiltration rate of 4 to 6 cm/hour. The first experiment was laidout in 1990 to compare the vegetative barriers and earthen bunds for soil and moisture conservation. The experiment was laid out on an area of 2 ha with half of it laid with 2 per cent slope and the rest half with 2.5 per cent slope. Each 1 ha of land was divided into 5 strips along the slope with a size of 100 m X 20 m. The vetiver hedge and graded earthen bunds were established across 2 and 2.5 per cent slope at a vertical interval (VI) of 0.5 m and 1 m between any two conservation structures. Another treatment included was combination of these two measures at 0.5 m VI. Fingermillet ( Eleusine coracana ) was the test crop from 1991-95 and groundnut in 1996 during kharif season( rainy season ). Vetiver grass was able to establish effectively during second year of planting and it had a higher initial cost (Rs 1.86 per meter length) for establishing compared to earthen bunds of 0.3 sq. m (Rs 1.25 per meter length). But the maintenance cost was almost the same in both the structure. A land slope of 2.5 per cent recorded higher runoff (84.14 mm) and soil loss (1935 kg/ha) compared to 2.0 per cent (51.67 mm and 1347 kg/ha respectively ). Runoff and soil loss in plots with vegetative barriers was greater (96.33 mm and 2269 kg/ha) than earthen bund (80.72 mm and 1822 kg/ha) at 1 m VI but soil loss in closer interval (0.5 m VI) was less in vegetative XI | en_US |
| dc.identifier.other | Th-6371 | |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810095942 | |
| dc.language.iso | en | en_US |
| dc.pages | 216 | en_US |
| dc.publisher | UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BANGALORE | en_US |
| dc.sub | Civil Engineering | en_US |
| dc.subject | null | en_US |
| dc.theme | Soil and Rain Water Conservation for Watershed Management | en_US |
| dc.these.type | Ph.D | en_US |
| dc.title | Soil and Rain Water Conservation for Watershed Management | en_US |
| dc.type | Thesis | en_US |