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结果 1441-1450 的 2,185
Slash-and-burn in the humid tropics: alternative systems
2001
Harwood, R.R. (Michigan State Univ., East Lansing, Michigan 48824-1325 (USA). Crop and Soil Sciences Dept.)
Results of the study showed the following: 1) There exists an extremely broad range of agricultural and agroforestry land-use alternatives to the current slash-and-burn systems but much work needs to be done. 2) There is a major need for scientific quantification of the many attributes of the most promising systems. 3) There is a need for national policy to discourage use of environmentally destructive systems and to encourage longer-term investment by finding solution to land tenure uncertainty. Innovative marketing approaches that open large market segments for agroforestry fruit products (such as the soft drink market) have been extremely successful but not well documented in many parts of Asia. 4) There is a need to "harness" and distribute the best farmers knowledge about integrated systems, but have little successful experience with this. 5) Finally, scientist must realize that the scientific knowledge base covering the range of options is frightfully narrow, and the scope for learning is enormous. The success stories of imaginative application of the many options give hope, but at the same time stretch our abilities, to understand and to properly apply the numerous technologies waiting for more widespread use
显示更多 [+] 显示较少 [-]Biological rejuvenation of jhumland soils
2001
Prasad, K.G. (Institute of Rain and Moist Deciduous Forests Research, Van Vihar, P.O. Box 136, Jorhat 785001, Assam (India))
Traditional slash and mulch systems in the Solomon Islands
2001
Maemouri, R.K. (Appropriate Technology for Community and Environment, c/o Development Services Exchange, P.O. Box 556, Honiara (Solomon Islands))
Agriculture systems in the north mountain regions of Vietnam
2001
Tuan, H.D. | Tham, D.H. | Husson, O.
Strategies for developing areas practicing shifting cultivation in northeast India
2001
Darlong, V.T. (Ministry of Environment and Forests N.E. Regional Office, Upland Road Shillong 793003 (India))
Economics of labor and information in swidden intensification
2001
Raintree, J. (Forestry Research Center, NAFRI Scc Natura, P.O. Box 4298 Vientiane (Lao PDR))
Biodiversity values in fallow areas of northeast India
2001
Darlong, V.T. (Ministry of Environment and Forests, Upland Road, Shillong 973003 (India). N.E. Regional Office) Tiwari, R.K. | Singh, J. | Prasad, K.G.
Role of Homo sapiens in the forests
2001
Rice, D. (Kalahan Educational Foundation, Inc. Imuyan, Santa Fe, Nueva Viscaya (Philippines))
Importance of gender analysis in shifting cultivation
2001
Gurung, C. (Resources Himalaya, Kathmandu (Nepal))
Role of ruminants in shifting cultivation: changing perspectives
2001
Burgers, P. (International Center for Research in Agroforestry, Jl Cifor, Situ Gede, Sindang Barang, P.O. Box 161 Bogor 6001 (Indonesia)) Trakansuphakon, P.