نتایج جستجو برای: china udsa forest service rmrs p
تعداد نتایج: 1850109 فیلتر نتایج به سال:
The relationship between forests and streamflows has long been an important research interest in China. The purpose of this paper is to summarize progress and lessons learned from the forest-streamflow studies over the past four decades in China. To better measure the research gaps between China and other parts of the world, a brief global review on the findings from paired watershed studies ov...
Patterns of biomass and carbon (C) storage distribution across Chinese pine (Pinus tabulaeformis) natural secondary forests are poorly documented. The objectives of this study were to examine the biomass and C pools of the major ecosystem components in a replicated age sequence of P. tabulaeformis secondary forest stands in Northern China. Within each stand, biomass of above- and belowground tr...
Rosenberger, Randall S.; Smith, Eric L. 1997. Nonmarket economic impacts of forest insect pests: a literature review. Gen. Tech. Rep. PSW-GTR-164-www. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; 38 p. This report summarizes the results of research on the nonmarket economic impacts of forest insect pests. The majority of the research reports ar...
a Eastern Forest Environmental Threat Assessment Center, Southern Research Station, USDA Forest Service, PO Box 12254, Research Triangle Park, NC 27709, USA b Forest Economics and Policy Work Unit, Southern Research Station, USDA Forest Service, PO Box 12254, Research Triangle Park, NC 27709, USA c Goods, Services, and Values Program, Pacific Northwest Research Station, USDA Forest Service, 620...
A comprehensive set of 30-m resolution land coverage data of 2000 and 2010 was used for an analysis of the spatial heterogeneity of forest area change in early 21st century China. Four regression models were built to determine the current situation of the ‘forest transition’ in China. The results show that forest area in China has grown rapidly over this period such that total forest area has i...
1 FOREST BIOMASS MAPPING FROM LIDAR AND RADAR SYNERGIES 2 Guoqing Sun, K. Jon Ranson, Z. Guo, Z. Zhang, P. Montesano and D. Kimes 3 4 Dept. of Geography, University of Maryland, College Park, MD USA, [email protected] 5 Biospheric Sciences Branch, NASA’s Goddard Space Flight Center, Greenbelt, MD USA 6 State Key Laboratory of Remote Sensing, Institute of Remote Sensing Applications, Chinese...
Because of the prolonged history of disturbance caused by intense human activities, restoration in China has been a major task facing many ecologists and land managers. There are six major forest types in China: cold temperate coniferous forest, temperate coniferous and broad-leaved mixed forest, warm temperate deciduous broad-leaved forest, subtropical evergreen broad-leaved forest, tropical r...
Currently, the forest biomass energy development is at an initial stage and the estimation method for the forest biomass energy resource reserve is to be unified and refined although there is a great value and potential in the development and utilization of forest biomass energy in China. Based on the existing studies, the present paper analyzes the origins and types of forest biomass energy re...
163 In: McArthur, E. Durant; Fairbanks, Daniel J., comps. 2001. Shrubland ecosystem genetics and biodiversity: proceedings; 2000 June 13–15; Provo, UT. Proc. RMRS-P-21. Ogden, UT: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. Angela D. Yu is a Graduate Student, Department of Geography, University of Colorado at Boulder, Boulder, CO 80309-0030. Simon A. Lei is ...
Citation for proceedings: Holley, A. Gordon; Connor, Kristina F.; Haywood, James D., eds. 2015. Proceedings of the 17th biennial southern silvicultural research conference. e–Gen. Tech. Rep. SRS–203. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 551 p. Research Forester, USDA Forest Service, Southern Research Station, Asheville, NC 28806; and Ecologis...
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