黄土高原淤地坝对水资源影响的初步研究——以绥德县韭园沟典型坝地为例  

The influence of loess plateau soil-saving dam on water resources:An example of typical soil-saving dam of Jiuyuangou in suide county

作　　者：张红娟[1] 延军平[1] 周立花[1] 徐小玲[1] 刘晓琼[1] 李平[2] 高银富[2] 

机构地区：[1]陕西师范大学旅游与环境学院,陕西西安710062 [2]黄河水利委员会绥德水土保持科学试验站,陕西绥德718000

出　　处：《西北大学学报（自然科学版）》2007年第3期475-478,共4页Journal of Northwest University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(40071005);教育部重大基金资助项目(04JZD00010);陕西师范大学校级重点科研项目

摘　　要：目的研究黄土高原已淤平坝地对水资源的影响。方法选择绥德县韭园沟流域典型淤平坝地——三角坪新坝和团圆沟1#坝坝地前部、中部、尾部3个剖面，采用野外分层地样法即每10cm取一个土样，土样经过称重、烘干、再称重后，测试了各观测点不同深度土壤水分含量。结果计算、分析了三角坪新坝和团圆沟1#坝存水量分别为17.24×10^4 m^3，5.26×10^4m^3，分别占到1954-1997年间该流域年均径流量的6.12%和1.87%。结论已淤平坝地存贮了大量水资源，在一定程度上会减少地表径流量。Aim To study the soil-saving dams influence on water resource in Loess Plateau. Methods Selecting three sections concerning frontal department, central part and tail part of typical soi-saving dams-Sanjiaoping new dam and Tuanyuangoul＂ dam which are located in Jiuyuangou valley, Suide country, using the way of separating soil into layers outdoors, which is to take out a soil sample, each 10 cm, the soil sample through being weighed first, also dried, then weighed again, is tested for the content of soil moisture of each observation in different depth. Results The store water quantity of Sanjiaoping new dam and Tuanyuangoul^# dam was calculated and analyzed, which is 1. 724 ×10^5 m^3 and 5.26 × 10^4m^3 respectively and respectively takes 1.87% and 6.12% of annual average runoff quantity of the valley during 1954-1997. Conclusion The study shows that the soil-saving dams have stored plenty of water resources, can reduce the runoff quantity of earth＇s surface on certain level.

关 键 词：淤地坝 土壤水分 水资源 韭园沟 

分 类 号：K903[历史地理—人文地理学]