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| 耕作方式与地表覆盖量对苜蓿及小麦地水蚀过程的影响 | |
| 引用本文： | 辛平,黄高宝,徐银萍,罗珠珠,沈延民.耕作方式与地表覆盖量对苜蓿及小麦地水蚀过程的影响[J].水土保持学报,2007,21(2):16-18,23. |
| 作者姓名： | 辛平 黄高宝 徐银萍 罗珠珠 沈延民 |
| 作者单位： | 1. 甘肃省林业科学技术推广总站,甘肃,兰州,730046;甘肃农业大学,农学院,甘肃,兰州,730070 2. 甘肃农业大学,农学院,甘肃,兰州,730070 3. 甘肃省林业科学技术推广总站,甘肃,兰州,730046 |
| 基金项目： | 中国-澳大利亚合作项目 |
| 摘 要： | 通过模拟降雨对定西苜蓿-春小麦轮作土壤的水蚀过程进行了研究，试验结果表明：苜蓿翻耕（T1）处理的地面积水产生时间最长，苜蓿不翻耕处理（T2）径流产生时间最长，显著高于其它3个处理。在整个模拟降雨过程中，不翻耕处理的径流产生速率总是低于翻耕处理的径流产生速率，其中以苜蓿不翻耕处理（T2）的径流速率最小，而两个翻耕处理的径流速率之间无显著性差异。T2处理的入渗速率始终高于其他3个处理；秸秆覆盖可有效地降低累积径流量和总侵蚀量，增加累积入渗量；在不同处理中，以苜蓿不翻耕处理加100％秸秆覆盖抗水蚀的效果比较明显。 |
| 关 键 词： | 耕作方式 覆盖 土壤水蚀 |
| 文章编号： | 1009-2242（2007）02-0016-03 |
| 收稿时间： | 2006-12-10 |
| 修稿时间： | 2006-12-10 |
Effects of Tillage Methods and Straw Cover on Water Erosion of Lucerne and Wheat Fields |
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| XIN Ping,HUANG Gao-bao,XU Yin-ping,Luo Zhu-zhu,SHEN Yan-min.Effects of Tillage Methods and Straw Cover on Water Erosion of Lucerne and Wheat Fields[J].Journal of Soil and Water Conservation,2007,21(2):16-18,23. | |
| Authors: | XIN Ping HUANG Gao-bao XU Yin-ping Luo Zhu-zhu SHEN Yan-min |
| Institution: | 1. General Station of Forestry Technology Popularization of Gansu Province , Lanzhou 730046; 2. Faculty of Agronomy, Gansu Agricultural University, Lanzhou 730070 |
| Abstract: | In this paper,soil water erosion of lucerne-spring wheat rotation soil in Dingxi under has been studied.The results showed that Pounding time of lucerne field with till(T1) is the longest.Runoff time of lucerne field with no till(T2) was the longest,which was significantly higher than three treatments.In the whole process of rainfall simulation,the runoff velocity of no till was lower than that of tilled.In four treatments,the runoff velocity of lucerne field with no till(T2) was the lowest,but between two tilled treatments had not significant difference.The infiltration velocity of lucerne field with no till(T2) was higher than that of other three treatments.Straw covering could decreased cumulated runoff and sediment and increased infiltration in the same time.In the different treatments,the result of resist water erosion of lucerne field with no till(T2) and 100% straw cover was obvious. |
| Keywords: | tillage methods straw cover soil water erosion |
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