نتایج جستجو برای: china udsa forest service rmrs p
تعداد نتایج: 1850109 فیلتر نتایج به سال:
Effective Management Strategies for Sage-Grouse and Sagebrush: A Question of Triage? Michael J. Wisdom U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station La Grande, Oregon Mary M. Rowland U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station La Grande, Oregon Robin J. Tausch U.S. Department of Agriculture, Forest Service, Rocky Mounta...
The current study used the Biome-Bio Geochemical Cycle (Biome-BGC) model to simulate water-use efficiency (WUE) of Piceacrassi folia (P. crassifolia) forest under four representative concentration pathway (RCP) scenarios, and investigated the responses of forest WUE to different combinations of climatic changes and CO2 concentrations in the Qilian Mountains of Northwest China. The model was val...
C. A. Bates, Georgia Forestry Commission, Statesboro, GA 30461; S. W. Fraedrich, U.S. Forest Service, Forestry Sciences Laboratory, Athens, GA 30602; T. C. Harrington, Department of Plant Pathology and Microbiology, Iowa State University, Ames 50011; R. S. Cameron, Georgia Forestry Commission, Statesboro, GA 30461; R. D. Menard, U.S. Forest Service, Forest Health Protection, Pineville, LA 71360...
China is investing immense resources for planting trees, totalling more than US$ 100 billion in the past decade alone. Every year, China reports more afforestation than the rest of the world combined. Here, we show that China's forest cover gains are highly definition-dependent. If the definition of 'forest' follows FAO criteria (including immature and temporarily unstocked areas), China has ga...
In this article, we introduce China's major forest types and discuss the historical development of forest management in China, including actions taken over the last decade toward achieving SMF. Major challenges are identified, and a strategy for SFM implementation in China is presented. China's forests consist of a wide variety of types with distinctive distributional patterns shaped by complex...
The article considers the danger of torsional vibrations in ship power plants, which is recognized by leading specialists shipbuilding, engine-building and repair industries supervisory authorities – Russian Maritime Register Shipping (RMRS), River (RRR), as well foreign classification societies. There are a number factors that can lead to serious accidents due vibrations, therefore, dampers (l...
forest property (on average < 3 ha) and fragmentation (3 plots on average) (The Slovenian Forest Service, 2005). Private forest management is further hindered by constant processes in the society which are related to an increasing number of owners due to partible inheritance and the diminishing sizes of forest property as well as a fall in the percentage of rural population, which indirectly in...
Department of Forestry and Natural Resources, Purdue University, West Lafayette, IN, USA, USDA Forest Service Southern Research Station, Knoxville, TN, USA, USDA Forest Service Northern Research Station, Morgantown, WV, USA, USDA Forest Service Southern Research Station, Asheville, NC, USA, Department of Forestry and Environmental Resources, North Carolina State University, Research Triangle Pa...
maldistribution of health professionals between urban and rural areas has been a serious problem in china. urban hospitals attract most of the health professionals with serious shortages in rural areas. to address this issue, a number of policies have been implemented by the government, such as free medical education in exchange for obligatory rural service.
Bytnerowicz, Andrzej; Arbaugh, Michael J.; Schilling, Susan L., technical coordinators. 1998. Proceedings of the international symposium on air pollution and climate change effects on forest ecosystems; 1996 February 5-9; Riverside, CA. Gen. Tech. Rep. PSW-GTR-166. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; 332 p. The purpose of the Internati...
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