Geographical Distribution of Woody Biomass Carbon in Tropical Africa: An Updated Database for 2000 (NDP-055.2007, NDP-055b))

Maps of biomass density are critical inputs for estimating carbon emissions from deforestation and degradation of tropical forests. Brown and Gatson (1996) pioneered methods to use GIS analysis to map forest biomass based on forest inventory data (ndp055). This database is an update of ndp055 (which represent conditions in circa 1980) and accounts for land cover changes occurring up to the year 2000. To access the older version of this data package see: http://cdiac.ess-dive.lbl.gov/epubs/ndp/ndp055/ndp055b.html生物量密度（biomass density）地图是估算热带森林砍伐与退化所产生碳排放的关键输入数据。Brown与Gatson于1996年率先提出基于森林清查数据（ndp055）、利用地理信息系统（Geographic Information System，GIS）分析绘制森林生物量地图的方法。本数据集是对ndp055（对应约1980年的森林状况）的更新版本，纳入了截至2000年发生的土地覆盖变化情况。如需获取本数据集的旧版本，请访问：http://cdiac.ess-dive.lbl.gov/epubs/ndp/ndp055/ndp055b.html