摘要
以黄土高原西部的宁夏固原县上黄试区为例，进行了流域综合治理研究。结果表明：在流域综合治理中，土地利用结构调整和农、林、牧各业的合理布局是综合治理的关键。该流域土地利用结构调整比例为３∶２∶５，然后根据生态系统工程的原理，对流域内各业进行了合理布局，其土地生产力可提高３～５倍以上，泥沙量和径流量显著减少，基本达到土不下坡，水不出沟。
Taking Guyuan experimental area in southern Ningxia as an example,the comprehen-sive harnessing benefits of small watershed were studied.The results show:In the comprehen-sive harnessing,the key of harnessing are adjustment of land use structure and rational arrang-ment of agri-forest-pasture distribution. This strueture of land use is seted as 3 : 2 : 5, accord-ing to the used area above. By the theory of eco-system engineering and combination with prac-tice of the agri-forest-pasture structure,the land productibity could be improved by 2～5times as that before,runoff and sediment obviously reduce.
基金
国家"八五"科技攻关专题
