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| 沟灌土壤侵蚀控制效应的室内模拟试验研究 | |
| 引用本文： | 雷廷武,袁普金,黄兴法,詹卫华,于健.沟灌土壤侵蚀控制效应的室内模拟试验研究[J].农业工程学报,2002,18(3):26-30. |
| 作者姓名： | 雷廷武 袁普金 黄兴法 詹卫华 于健 |
| 作者单位： | 1. 中国科学院水利部水土保持研究所 2. 中国农业大学 3. 以色列土壤-水-环境科学院 4. 内蒙古水利科学研究院 |
| 基金项目： | 中国-以色列国际合作项目(99w-002 1422)；中国科学院“百人计划”(982602)；国家自然科学基金重大项目(19832060) |
| 摘 要： | 灌溉地土壤侵蚀问题已经越来越引起人们的普通关注。该文采用微型水槽的室内模拟试验，对利用PAM及波涌灌溉等技术减少沟灌引起的土壤侵蚀效果进行了试验研究，分析了在不同坡度、不同流量条件下PAM及灌溉间歇时间对侵蚀的影响。结果表明：PAM可显著减少沟灌土壤侵蚀量，地面坡度是地面灌溉土壤侵蚀最主要影响因素，而流量及波涌灌间歇时间对它的影响较小。 |
| 关 键 词： | 土壤结构稳定剂(PAM) 波涌沟灌 微型水槽 土壤侵蚀 |
| 文章编号： | 1002-6819(2002)03-0026-05 |
| 收稿时间： | 2001/3/17 0:00:00 |
| 修稿时间： | 3/1/2002 12:00:00 AM |
Laboratory Simulated Experiments on Control Over Furrow-Irrigation Induced Soil Erosion |
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| Lei Tingwu,Yuan Pujin,Huang Xingf,Zhan Weihua and Yu Jian.Laboratory Simulated Experiments on Control Over Furrow-Irrigation Induced Soil Erosion[J].Transactions of the Chinese Society of Agricultural Engineering,2002,18(3):26-30. | |
| Authors: | Lei Tingwu Yuan Pujin Huang Xingf Zhan Weihua and Yu Jian |
| Abstract: | Soil erosion in irragated land is becoming a more and more interested problem to people in the world. Simulated laboratory experiments with mini-flume were conducted to study the influences on furrow irrigation induced soil erosion of typical soil from Hetao Irrigation Scheme, Inner Mongolia. From the mini-flume experimental data, the impacts of PAM and interruption time on reduction of soil erosion under influences of slope grade and inflow rate were quantitatively analyzed. The results show that PAM can reduce soil erosion in irrigated land greatly, and the land slope is the most important factor to soil erosion in surface irrigated land. While the flow rate of irrigation water into furrow and off-time of surge irrigation are not very effective factors on it. |
| Keywords: | polyacrylamide (PAM) surge irrigation mini flume soil erosion |
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