2018年中国1km生态系统类型空间分布数据

中国陆地生态系统类型空间数据在遥感解译获取的1：10万比例尺土地利用/土地覆盖数据的基础上，通过对各生态系统类型进行辨识和研究，经过分类处理形成多期中国陆地生态系统类型空间分布数据集。

中国陆地生态系统类型定义见下表，具体划分为7大生态系统类型：

（1）农田生态系统，主要包括土地利用/土地覆盖遥感分类系统中的水田11、旱地12；

（2）森林生态系统，主要包括土地利用/土地覆盖遥感分类系统中的密林地（有林地）21、灌丛22、疏林地23、其它林地24；

（3）草地生态系统，主要包括土地利用/土地覆盖遥感分类系统中的高覆盖度草地31、中覆盖度草地32、 低覆盖度草地33；

（4）水体与湿地生态系统，主要包括土地利用/土地覆盖遥感分类系统中的沼泽地64、河渠41、湖泊42、水库43、冰川与永久积雪44、 滩地46；

（5）荒漠生态系统，主要包括土地利用/土地覆盖遥感分类系统中的沙地61、戈壁62、盐碱地63；高寒荒漠67；

（6）聚落生态系统，主要包括土地利用/土地覆盖遥感分类系统中的城镇51、农村居民地52、工矿53

（7）其它生态系统，主要包括土地利用/土地覆盖遥感分类系统中的裸土地65和裸岩砾石地66。

China's terrestrial ecosystem type spatial data is based on the 1:100,000 scale land use/land cover data obtained via remote sensing interpretation. Through identification and research on various ecosystem types and classification processing, a multi-temporal spatial distribution dataset of China's terrestrial ecosystem types is formed.

The definition of China's terrestrial ecosystem types is shown in the table below, which are specifically divided into 7 major ecosystem types:

(1) Cropland Ecosystem: mainly includes paddy field 11 and dry land 12 in the remote sensing classification system of land use/land cover;

(2) Forest Ecosystem: mainly includes dense forest land (closed forest) 21, shrubland 22, sparse forest land 23 and other forest land 24 in the remote sensing classification system of land use/land cover;

(3) Grassland Ecosystem: mainly includes high-coverage grassland31, medium-coverage grassland32 and low-coverage grassland33 in the remote sensing classification system of land use/land cover;

(4) Water Body and Wetland Ecosystem: mainly includes marshland64, river and canal41, lake42, reservoir43, glacier and permanent snow44 and beach land46 in the remote sensing classification system of land use/land cover;

(5) Desert Ecosystem: mainly includes sandy land61, Gobi62, saline-alkali land63 and alpine desert67 in the remote sensing classification system of land use/land cover;

(6) Settlement Ecosystem: mainly includes urban area51, rural settlement52 and industrial and mining land53 in the remote sensing classification system of land use/land cover;

(7) Other Ecosystems: mainly includes bare land65 and bare rock and gravel land66 in the remote sensing classification system of land use/land cover.