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中国的森林
释义
中国的森林
Encyclopedia
理学
中国植被地理
释
forests in China
中国的森林
森林是以乔木种为建群种、乔木层盖度>20%的植物群落总称,还包括高度大于5米,主秆明显的竹类为建群种的竹林,以及分布在(石质化、海岛、海滨、山顶等)特殊生境的乔木矮林。林学定义森林为以乔木为主体的生物群落及其环境因素共同构成的生态系统,包括林地和疏林地。
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active zone
activist art
activist public
activities of classes,the Young Pioneers and the Communist Youth League
activities of daily living, ADL
activity
activity analysis
activity assay of alteplase
activity assay of recombinant urate oxidase
activity-based learning
activity-based probe
Activity based project cost management
activity-based protein profiling
activity-based travel demand analysis
activity breakthrough
activity coefficient
activity constant
activity curriculum
activity decay
activity density relative to surface
activity determining method by vapor pressure measurement
activity diagram
activity factor
activity index
activity life expectancy,ALE
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