| 等高垄作垄沟的水土流失特点研究 |
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| 引用本文： | 刘刚才,高美荣,朱波,张先婉.等高垄作垄沟的水土流失特点研究[J].水土保持通报,1999,19(3):33-35. |
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| 作者姓名： | 刘刚才 高美荣 朱波 张先婉 |
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| 作者单位： | 1. 四川大学·成都市·610041
2. 中国科学院水利部成都山地灾害与环境研究所 |
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| 基金项目： | 中国科学院重大项目，中国科学院资助项目，KZ95T-04，49671068，， |
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| 摘 要： | 研究了紫色土地区等高垄作法耕作中垄和沟的侵蚀特点，结果表明，等高垄作法在无覆盖时，相对于平板耕作法有保水作用，而无防蚀效果；
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| 关 键 词： | 侵蚀 等高垄作 垄沟 |
| 文章编号： | 1000-288X(1999)03-0033-03 |
| 收稿时间： | 1999/1/14 0:00:00 |
| 修稿时间： | 1999-01-14 |
Erosion Characters of Ridge and Ditch Under Contour Tillage |
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| LIU Gangcai.Erosion Characters of Ridge and Ditch Under Contour Tillage[J].Bulletin of Soil and Water Conservation,1999,19(3):33-35. |
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| Authors: | LIU Gangcai |
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| Institution: | Sichuan University, Chengdu, 610041, PRC;Institute of Mountain Hazard and Environment of Chinese Academy of Sciences and Ministry of Water Resources;Institute of Mountain Hazard and Environment of Chinese Academy of Sciences and Ministry of Water Resources;Institute of Mountain Hazard and Environment of Chinese Academy of Sciences and Ministry of Water Resources |
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| Abstract: | The erosive
characteristics of ridge and ditch under countour tillage are studied in purple soil. The
results show that, comparing with conventional tillage(CK), the runoff of contour tillage
(CT) is diminished, but the sediment is not. When there are not any cover (including
vegetable cover) on soil, the sediment of CT is mainly physical clay coming from its
ridge, but that of CK is similar to the particle distribution of its source soil and its
coefficient of soil structure is decreased significantly. It suggests that cover on ridge
of CT will play an important role in controlling erosion, and CK will led to soil
degradation notably. |
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| Keywords: | erosion contour tillage ridge and ditch |
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