河北太行山区河谷土地利用特征研究

Characteristics of land-use in river valleys of Taihang mountains area，Hebei Province

摘要: 以景观生态学原理研究分析太行山区7条河流主流河谷土地利用特征结果表明，各河流属性、地貌特征、水流特性等存在一定差异，但河谷内土地利用总体格局一致，土地利用类型中农田为绝对优势，占50％～80％，村庄次之，占20％左右，林地<10％，土地利用类型总体表现为由上游向下游增多的趋势。河谷内土地斑块较破碎，平均每1000m 长河谷内分布5～6个土地斑块，阜平县河道占河谷面积比例基本在15％～30％问变动，元氏县保留河道比例为10％以下。

Abstract: Using the theory of landscape ecology，the land-use characteristics of main valleys are analyzed in 7 rivers of Taihang mountains area of Hebei Province．The results show that the valley land-use patterns of 7 rivers are similar despite that the river properties ，landforn'l characteristics and water situations are different from each other，and farmland occupies 50％～ 80％．village 20％ and forest land less than 10％ of valley area．The land-use types increase from upstream to downstream．The land patches are relatively fragmented，and the number of land patch is 5 or 6 per 1000 meters valley．The reserved watercourse oceupies 15％～ 30％ of valley area in Fuping County．and no more than 10％in Yuanshi County．