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Standard for Bamboo and its International Trend 总被引:1,自引:0,他引:1
WANG Zhaohui JIANG Zehui SUN QixiangResearch Institute of Wood Industry Chinese Academy of Forestry Beijing P.R. China 《中国林业科技(英文版)》2004,3(2):55-65
1 INTRODUCTIONNational forestry ecological engineering, as afundamental affair for environmental protectioncontains combating desertification, soil and waterconservation. Two measures might be taken to preventsoil and water losses. One measure is to enlarge theforest area and to stop cutting or to decrease cuttingforest so as to make forest coverage keep rising at astable speed, forest resources should be examined byremote sensing technology. The other is to control thecirculation of wood… 相似文献
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1 IMPROVEMENT OFURBANECOLOGICALENVIRONMENT:NATURAL TREND OFURBANDEVELOPMENT1.1 Accelerated Urbanization’s Requirements forImprovement of Urban Ecological EnvironmentPresently, the ecological and environmentaldevelopment in China’s cities does not match up withthe rapid urbanization. The number and the scale ofcities/towns are rapidly increasing, making the long-existed urban environmental problems increasinglyprominent. This imposes new requirements forimprovem… 相似文献
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