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全球森林生物量数据Global Forest Biomass (FAO 2005).zip
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Global Forest Biomass this work presents a technique to downscale the aggregated results of the FRA2005 from the country level to a half degree global spatial dataset containing forest growing stock; above/belowground biomass, dead wood and total forest biomass; and above-ground, below-ground, dead wood, litter and soil carbon. The downscaling method is derived using a relationship between net primary productivity (NPP) and biomass and the relationship between human impact and biomass assuming a decrease in biomass with an increased level of human activity. The results, presented here, represent one of the first attempts to produce a consistent global spatial database at half degree resolution containing forest growing stock, biomass and carbon stock values.Kindermann, G.E., McCallum, I., Fritz, S. & Obersteiner, M. 2008. A global forest growing stock, biomass and carbon map based on FAO statistics. Silva Fennica 42(3): 387–396.
森林生物量是森林生态系统长期生产与代谢过程中积累的结果，是森林生态系统运转的能量基础和物质来源。
包括林木的生物量（根、茎、叶、花果、种子和凋落物等的总重量）和林下植被层的生物量。通常以单位面积或单位时间积累的干物质量或能量来表示。其大小受光合作用、呼吸作用、死亡、收获和人类活动等因素的影响，是森林演替、人类活动、自然干扰、气候变化和大气污染等因素的综合结果，是评价森林生态系统结构和功能的重要指标。
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