中国5年间隔陆地生态系统空间分布数据集（1990-2010）

中国陆地生态系统类型空间分布数据集是在1990年、1995年、2000年、2005年和2010年卫星遥感数据基础上，结合地面调查研发的连续25年每5年间隔的中国生态系统数据集。该分类系统共划分7个生态系统类型，包括：农田生态系统、森林生态系统、草地生态系统、水体与湿地生态系统、荒漠生态系统、聚落生态系统和其他生态系统。数据空间分辨率为100米。其中，水体和湿地生态系统变化不大，聚落生态系统由占据总面积1.65%（1990）增至2.09%（2010）；农田生态系统由18.65%（1990）增至18.80%（2010）；而草地生态系统由31.98%（1990）降至31.56%（2010）；森林生态系统由23.74%降至23.64%（2010）。这种变化总量在5年间隔期间呈波动变化特点。

The Spatial Distribution Dataset of Terrestrial Ecosystem Types in China is a Chinese terrestrial ecosystem dataset developed using satellite remote sensing data from 1990, 1995, 2000, 2005 and 2010 in combination with ground investigations, covering a 25-year period with 5-year intervals. The classification system categorizes terrestrial ecosystems into 7 types, including farmland ecosystems, forest ecosystems, grassland ecosystems, water bodies and wetland ecosystems, desert ecosystems, settlement ecosystems and other ecosystems. The spatial resolution of the dataset is 100 meters. Specifically, water bodies and wetland ecosystems showed negligible changes; settlement ecosystems increased from 1.65% of the total land area in 1990 to 2.09% in 2010; farmland ecosystems rose from 18.65% in 1990 to 18.80% in 2010; grassland ecosystems decreased from 31.98% in 1990 to 31.56% in 2010; forest ecosystems decreased from 23.74% in 1990 to 23.64% in 2010. The overall changes exhibited fluctuating patterns across each 5-year interval.