河北丰宁坝上沙漠化土地造林立地类型的划分──以大滩沙漠化土地整治示范区为例

通过对土壤、植被、林木生长量的野外调查，依据科学性、实用性原则，将河北坝上大滩示范区的造林立地类型划分为１２个立地类型：山地阴坡中下部厚土立地类型、山地阴坡上部薄土立地类型、山地阳坡中下部厚土立地类型、山地顶部岩石裸露立地类型、二阴滩地立地类型、下湿滩地立地类型、低缓小丘阴坡立地类型、低缓小丘阳坡立地类型、平缓砾质化或沙质耕地立地类型、平缓壤质耕地立地类型、缓起伏固定、半固定沙地立地类型

SITE TYPE DIVISION FOR AFFORESTATION ON DESERTIFIED LAND IN BASHANG,HEBEI PROVINCE

Based field investigation on soil,plant and growing rate of trees,the afforesting land inDatan demonstrative district of Bashang in Hebei Province was divided into 12 site types: namelymiddle-lower site of hilly shady slope with thick-layer soil, upper site of hilly shady slope with thin-layer soil,middle-lower site of hilly sunny slope with thick-layer soil:rocky site of hilly top,shadybank site: wet bank site:low and shady hillside site:low and sunny hillside site,gentle gravel land orsandy cultivated land;gentle loam cultivated land,gentle undulate fixed sandy land and semifixedsandy land.