000015350 001__ 15350
000015350 037__ $$a18.0
000015350 041__ $$aEnglish
000015350 100__ $$aSharma, R.
000015350 100__ $$aRai, S. C.
000015350 100__ $$aSharma, E.
000015350 245__ $$aSoil, water and nutrient conservation in mountain farming systems: Case-study from the Sikkim Himalaya
000015350 260__ $$c2001
000015350 300__ $$a123-135
000015350 507__ $$aEklabya Sharma ICIMOD Staff, ESjar
000015350 520__ $$aThe Khanikhola watershed in Sikkim is agrarian with about 50% area under rain-fed agriculture representing the conditions of the middle mountains all over the Himalaya. The study was conducted to assess overland flow, soil loss and subsequent nutrient losses from different land uses in the watershed, and identify biotechnological inputs for management of mountain farming systems. Overland flow, soil and nutrient losses were very high from open agricultural (cropped) fields compared to other land uses, and more than 72% of nutrient losses were attributable to agriculture land use. Forests and large cardamom agroforestry conserved more soil compared to other land uses. Interventions, like cultivation of broom grass upon terrace risers, N2-fixing Albizia trees for maintenance of soil fertility and plantation of horticulture trees, have reduced the soil loss (by 22%). Soil and water conservation values (>80%) of both large cardamom and broom grass were higher compared to other crops. Use of N2-fixing Albizia tree in large cardamom agroforestry and croplands contributed to soil fertility, and increased productivity and yield. Bio-composting of farm resources ensured increase in nutrient availability specially phosphorus in cropped areas. Agricultural practices in mountain areas should be strengthened with more agroforestry components, and cash crops like large cardamom and broom grass in agroforestry provide high economic return and are hydroecologically sustainable
000015350 653__ $$aagroforestry, bio-composting, land use, N2-fixing tree, nutrient loss, overland flow, soil erosion, watershed
000015350 650__ $$aNatural resource management
000015350 650__ $$aFarming systems
000015350 773__ $$pJournal of Environmental Management
000015350 773__ $$v61
000015350 773__ $$n2
000015350 773__ $$a10.1006/jema.2000.0386
000015350 8564_ $$uhttp://lib.icimod.org/record/15350/files/sh18.pdf
000015350 980__ $$aARTICLE