| 黄土区坡耕地细沟间侵蚀和细沟侵蚀的研究 |
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| 引用本文： | 郑粉莉.黄土区坡耕地细沟间侵蚀和细沟侵蚀的研究[J].土壤学报,1998,35(1):95-103. |
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| 作者姓名： | 郑粉莉 |
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| 作者单位： | 中国科学院水土保持研究所 |
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| 基金项目： | * 中国科学院‘百人计划’项目;“黄土高原土壤侵蚀与旱地农业国家重点实验室”基金;国家基金49671051 |
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| 摘 要： | 利用人工模拟降雨试验，通过在径流小区上覆盖纱网消除雨滴动能和增加雨滴除落高度来增加雨滴功能，并采用翻耕裸露作对照的试验处理，对黄土区坡耕地细沟间侵蚀和细沟侵蚀过程及其机理进行了研究。结果表明，坡面侵蚀产沙过程可明显的分为四个阶段，即溅蚀，细沟间侵蚀、细沟侵蚀和雨后径流侵蚀阶段。
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| 关 键 词： | 坡耕地 土壤侵蚀 细沟侵蚀 雨滴功能 |
| 收稿时间： | 1996/4/21 0:00:00 |
| 修稿时间： | 1997/4/11 0:00:00 |
STUDY ON INTERRILL EROSION AND RILL EROSION ON SLOPE FARMLAND OF LOESS AREA |
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| Zheng Fen-li.STUDY ON INTERRILL EROSION AND RILL EROSION ON SLOPE FARMLAND OF LOESS AREA[J].Acta Pedologica Sinica,1998,35(1):95-103. |
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| Authors: | Zheng Fen-li |
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| Institution: | Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling Shaanxi 712100 |
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| Abstract: | Using simulated rainfall experiment, interill erosion and rill erosion on slope farmland of loess area were researched through putting nylon net cover on runoff plots to eliminate raindrop kinetic energy, increasing raindrop falling height to increase raindrop kinetic energy and turning up the soil as the contrast tests. The results showed that erosion and sediment can be divided into 4 stages, that is, raindrop splash, interrill erosion, rill erosion and runoff erosion after raining. After eliminating 99.6% of raindrop kinetic energy, interrill erosion and rill erosion were obviously reduced, interrill erosion was decreased by 35-61% and rill erosion was reduced by 35-64%. In addition, affecting mechanism of raindrop kinetic energy on interrill erosion and rill erosion was analyzed. |
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| Keywords: | Slope farmland Interrill erosion Rill erosion Raindrop kinetic energy |
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