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النتائج 1 - 10 من 13
Macrostructure and density of pine and spruce wood on fallow lands on North-West of Russia
2019
Danilov, D., Leningrad Scientific Research Inst. of Agriculture ''Belogorka'', Belogorka village, Gatchina district, Leningrad region (Russian Federation);Saint-Petersburg State Forest Technical Univ. named after S.M. Kirov (Russian Federation) | Janusz, S., Saint-Petersburg State Forest Technical Univ. named after S.M. Kirov (Russian Federation)
Growing spruce and pine wood on land being out of active agricultural use is important for many European regions. The study of the qualitative characteristics of coniferous wood makes it possible to predict target indicators of the obtained raw materials. The influence of xylem structural elements on the density of spruce pine wood on the postagrogenic lands of the boreal zone of Russia was studied. The objects of the research were spruce-pine stands growing on old arable land in the Gatchina district of the Leningrad region. Depending on the share of the species, various anatomical indicators of the macro-structure of wood influence the formation of the spruce and pine wood density. For the spruce part of the forest stand, the width of the annual increase makes a greater contribution to the formation of indicators of wood density. For the pine part of the forest stand the density of the wood correlates with the proportion of late xylem. With a different proportion of the species, the influence of macro-structural elements on the density of wood changes. Conducted analysis of variance showed a significant effect of the forest stand composition on the anatomical macro-structure of spruce and pinewood.
اظهر المزيد [+] اقل [-]Ecological and socio-economic impacts of modified shifting cultivation in Northeast India
2001
Tiwari, B.K. (North Eastern Univ., Shillong 793014 (India). Centre for Environmental Studies)
Shifting cultivation practices of the Hanunuo Mangyans [ethnic groups]: Mindoro Island, Philippines
2001
Castro, N.T. (Philippines Univ. Diliman, Diliman, Quezon City (Philippines). Dept. of Anthropology)
Role of fallow in household livelihood strategies
2001
Burgers, P. (International Center for Research in Agroforestry, Jl. Cifor, Situ Gede, Sindang Barang, P.O. Box 161, Bogor 6001 (Indonesia))
Shifting cultivation on the forest farming continuum
2001
Freeman, J. (International Inst. of Rural Reconstruction, Silang, Cavite (Philippines))
Managing alder for improved shifting cultivation in Nagaland, India
2001
Darlong, V.T. (Ministry of Environment and Forests, N.E. Regional Office, Upland Road Shiltong 793003 (India))
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))
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.
Relay cropping as an improved fallow practice in northern Thailand
2001
Prinz, K. (McKean Rehabilitation Center, P.O. Box 53 Chiang Mai 50000 (Thailand)) Ongprasert, S.
