CAVE IN LAND TYPES BY COAL MINING AND THEIRCOMPREHENSIVE UTILIZATION ECOLOGICAL MODEL
兖滕两淮地区采煤塌陷地的类型与综合开发生态模式

Yantenglianghuai(Yanzhou,Tengzhou,south Huai and north Huai 4 cities),who mainly developed energy industry,is one of the 19 important comprehensive developmental areas in China.Coal mining and land cave in made it a weak ecological system with more exploitation and less terrilorial management.After investigation,the coal mining cave in land in this area as was classified into 5 types:cave in dry land,cave in swamp land,seasonal water heaped up lave in land,shallow water and deep water heaped up land,6 non replacing ecological models were put ward.They are agriculture and forestry comprehensive development,building material development,agriculture and forestry and fishery comprehsive development,fishery and forestry and agriculture comprehensive development,aquaculture comprehensive development.