Effect of different land use types on runoff on gentle slopes:A case study in the loess hilly area, China
JIN Ting , DIAO Wen-Wu , DIAO Meng-Ru, XU Hai-Yan
(1.State Key Laboratory of Earth Surface Processes and Resource Ecology,Beijing Normal University, 100875, Beijing;2.College of Resources Science and Technology, Beijing Normal University, 100875, Beijing;3.College of Economic and Urban Management, Shandong University of Finance and Economics, 250014, Jinan: China)
Abstract：Study on the action mechanism between land use types and soil erosion on gentle slopes is of significance on controlling water and soil erosion in the loess hilly area. Based on the study in research plots (from 2009 to 2011) at Ansai Integrated Experimental Station of the Chinese Academy of Sciences,effects of different land use types on runoff on gentle slope were discussed. Five land use types were selected, including millet field(F), switchgrass field(S), abandoned land(A), two-thirds millet and one-third switchgrass field(FS), two-thirds millet and one-third abandoned land(FA). The results showed that: 1) Compared with the other four land use types(S, A, FS, FA), runoff produced in millet field (F) was the most, and runoff was affected with high rainfall intensity significantly. 2) In the whole observation period, July was the sensitive time of producing runoff. 3) Compared with millet field (F),other four land use types(S, A, FS, FA) had positive effects on runoff reduction to different extent, and rank of the effect was A>S>FA>FS. 4) For the five land use types(F, S, A, FS, FA), increase of vegetation coverage was beneficial to runoff ruduction but the effect could be weakened when rainfall and rainfall intensity were large.
中央高校基本科研业务费专项资金“黄土丘陵沟壑区土地利用与土壤流失关系的尺度效应分析冶(105560GK);中国科学院知识创新青年人才项目“黄土丘陵区淤地坝固碳功能的形成机制与时空变异冶(KZCX2 YW QN408);长江学者和创新团队发展计划“土壤水文与土壤侵蚀冶(IRT1108);地表过程与资源生态国家重点实验室资助项目“黄土丘陵沟壑区坡面尺度土地利用格局变化的水土流失效应冶(2008 ZY 08)
引用本文:
靳婷1, 2, 赵文武1, 2, 赵明月1, 2, 徐海燕2, 3. 黄土丘陵区缓坡地不同土地利用方式的产流效应[J]. 中国水土保持科学, 2012, 10(4): 30-36.
JIN Ting , DIAO Wen-Wu , DIAO Meng-Ru, XU Hai-Yan. Effect of different land use types on runoff on gentle slopes:A case study in the loess hilly area, China. SSWCC, 2012, 10(4): 30-36.
2012, Vol. 10 
