摘要
束鸡沟流域属于典型的风蚀水蚀交错地区，风蚀分布普遍，水蚀主要分布在沟谷，风蚀、水蚀、重力侵蚀在空间上相互重叠，具有多种侵蚀营力复合侵蚀的特点。流域具有较大的潜在侵蚀能力。流域输沙量主要来自谷坡泻沙和沟蚀，占输沙总量的７０％以上，控制侵蚀产沙的难度大，其关键是沟谷治理（包括坡面沟蚀）。
hujigou watershed,shenfu coal mining area,katypical small
watershed of wind-water erosion interaction region,Wind erosion is dispersed over the whole
watershed,but watererosion is mainly distributed over gully area,Wind erosion,water erosion
and gravity erosionoverlap spatially and the soil erosion in the watershed has characteristics
of multi-agent com-pound erosion. The meteorology condition and easily eroded material show
that the wa tershedhas a numous erosion potential.Sandy debris and gully erosion are main
resources of sedimentvield,their sediment yield takes upon about 70%of theaediment delivery.
It is difficuIt to de-crease sediment delivery and the main way is to manage gully erosion
(including hillslope gullyerosion).
基金
"黄土高原土壤侵蚀与早地农业国家重点实验室"基金
"束鸡沟水土保持示范工程"项目
