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| 黄土区浅沟侵蚀影响因素对其侵蚀速率影响的模拟试验研究 | |
| 引用本文： | 龚家国,庞金城,贾仰文,王文龙,周祖昊,彭辉.黄土区浅沟侵蚀影响因素对其侵蚀速率影响的模拟试验研究[J].水土保持研究,2011,18(1):7-11. |
| 作者姓名： | 龚家国 庞金城 贾仰文 王文龙 周祖昊 彭辉 |
| 作者单位： | 1. 中国水利水电科学研究院水资源研究所,北京,100038 2. 陕西省渭河流域管理局,西安,710018 3. 中国科学院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室,陕西,杨凌,712100 |
| 基金项目： | 国家自然科学基金项目(50709041,50779074,50939006,50721140161); “十一五”国家科技支撑计划课题(2006BAB06B06); 中国水科院博士生学位论文创新研究资助课题 |
| 摘 要： | 浅沟侵蚀是黄土高原丘陵沟壑区的主要侵蚀类型之一。利用室内模拟降雨与放水相结合的研究方法,对雨强、上游汇水面积、坡度和耕作等因素对浅沟侵蚀的影响进行了初步研究,结果表明:浅沟侵蚀发生的速率与坡度、雨强和汇水面积均呈正相关关系。耕作通过改变表层土壤结构,改变了浅沟侵蚀随雨强、坡度和上游汇水面积与侵蚀速率的响应关系。且在较小坡度坡面上,耕作显著减少由于雨强变化引起的侵蚀变化,但在大坡度和大雨强条件下,耕作对雨强引起的侵蚀变化有加强作用。 |
| 关 键 词： | 黄土 浅沟侵蚀 影响因素 雨强 坡度 上游汇水面积 耕作 |
Experimental Study on Influencing Factors of Ephemeral Gully Erosion on Losses Slope |
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| GONG Jia-guo,PANG Jin-cheng,JIA Yang-wen,WANG Wen-long,ZHOU Zu-hao,PENG Hui.Experimental Study on Influencing Factors of Ephemeral Gully Erosion on Losses Slope[J].Research of Soil and Water Conservation,2011,18(1):7-11. | |
| Authors: | GONG Jia-guo PANG Jin-cheng JIA Yang-wen WANG Wen-long ZHOU Zu-hao PENG Hui |
| Institution: | GONG Jia-guo1,PANG Jin-cheng2,JIA Yang-wen1,WANG Wen-long3,ZHOU Zu-hao1,PENG Hui1(1.Department of Water Resources,China Institute of Water Resources and Hydropower Research,Beijing,100038,China,2.Administration of Weihe River in Shaanxi Province,Xi'an 710018,3.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau,Institute of Soil and Water Conservation,CAS and MWR,Yangling,Shaanxi 712100,China) |
| Abstract: | Ephemeral gully erosion is an important erosion type in hilly area of Loess Plateau.The influence of rainfall intensity,area of upper catchment,gradient and tillage to ephemeral gully was studied preliminarily by simulating experiments.Main conclusions as follows: there was positive correlation between ephemeral gully erosion velocity and slope gradient,rainfall intensity,upper catchment area;Tillage changed the response relationship between rainfall intensity,slope gradient,upper catchment area and erosion... |
| Keywords: | Loess ephemeral gully erosion influence factors rainfall intensity slope gradient upper catchment area tillage |
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