| 遂宁组紫色土坡耕地土壤侵蚀规律研究 |
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| 引用本文： | 何丙辉,缪驰远吴咏 陈晓燕. 遂宁组紫色土坡耕地土壤侵蚀规律研究[J]. 水土保持学报, 2004, 18(3): 9-11,15 |
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| 作者姓名： | 何丙辉 缪驰远吴咏 陈晓燕 |
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| 作者单位： | 1. 西南农业大学,资源环境学院,重庆,400716
2. 遂宁市中区水土保持办公室,四川,遂宁,629000 |
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| 基金项目： | 国家自然科学基金基于神经网络的三峡库区山洪泥石流灾害预警研究(40201032)、重庆市科委重点攻关项目应用WEPP模型进行水土流失动态监测研究(19990906)共同资助 |
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| 摘 要： | 通过对遂宁市水土保持试验站径流小区的定位观测试验,采用数据分析的方法,对遂宁组紫色土坡耕地土壤侵蚀规律进行了试验研究,结果表明:径流量随着降雨量的增加而增大,而侵蚀量与降雨量的相关性却不明显;坡耕地土壤侵蚀厚度、侵蚀量及养分流失量均随着坡耕地坡度的增加而变大;土壤侵蚀量和降雨量、平均雨强、浑水径流深之间的关系可用y=-30.666-1.326x1-2.343x2 23.646x3很好地描述。
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| 关 键 词： | 降雨量 坡度 土壤侵蚀规律 |
| 文章编号： | 1009-2242(2004)03-0009-03 |
Study on Soil Erosion Regularity of Sloping Farmland in Suining Group Purple Soil |
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| HE Bing-hui,MIAO Chi-yuan,WU Yong,CHEN Xiao-yan. Study on Soil Erosion Regularity of Sloping Farmland in Suining Group Purple Soil[J]. Journal of Soil and Water Conservation, 2004, 18(3): 9-11,15 |
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| Authors: | HE Bing-hui MIAO Chi-yuan WU Yong CHEN Xiao-yan |
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| Affiliation: | HE Bing-hui~1,MIAO Chi-yuan~1,WU Yong~1,CHEN Xiao-yan~2 |
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| Abstract: | Through the located observation trial in runoff plot in Suining Water and Soil Conservation Station, using the way of data analyzing, the laws of soil erosion on sloping farmland in Suining group purple soil. The results showsed: runoff is enlarged along with the increase of rainfall, and the relativity between the erosion and the rainfall is unapparent; the erosion thickness of sloping land, erosion amount and the loss amount of nutriment are all become big along with the increase of the cultivated land gradient;y=-30.666-1.326x_1-2.343x_2 23.646x_3 can describe the relation between soil erosion amount and rainfall, meant rainfall density, depth of muddy runoff well. |
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| Keywords: | rainfall slope soil erosion law |
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