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,但河谷为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1000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％间变动,元氏县保留河道比例为10％以下。
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, landform 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 occupies 15% -30% of valley area in Fuping County, and no more than 10% in Yuanshi County.
出处
《中国生态农业学报》
CAS
CSCD
2003年第3期146-148,共3页
Chinese Journal of Eco-Agriculture
基金
河北省林业厅项目"太行山洪灾生态以及防洪对策的研究"
