| 人工降雨条件下紫色土养分流失特点的试验研究 |
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| 引用本文： | 蔡崇法,张光远,丁树文,黄丽. 人工降雨条件下紫色土养分流失特点的试验研究[J]. 南昌水专学报, 1995, 0(Z1) |
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| 作者姓名： | 蔡崇法 张光远 丁树文 黄丽 |
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| 作者单位： | 华中农业大学土化系 武汉430070(蔡崇法，张光远，丁树文)，华中农业大学土化系 武汉430070(黄丽) |
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| 摘 要： | 研究了在人工降雨条件下坡地紫色土的土壤侵蚀及养分流失的特点。结果表明:养分流失与土壤侵蚀密切相关,影响土壤侵蚀的因素也影响养分流失,如植被、降雨强度,坡度等;侵蚀泥沙中养分含量比表土高;施用肥料在降雨过程中大多数易流失,但紫色土对肥料有一定的截留。
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| 关 键 词： | 土壤侵蚀 养分流失 紫色土 |
Experimental Study on Nutrient Loss of Purple Soils of Slopeland by Simulated Rainfall |
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| Cai Chongfa Zhang Guangyuan Ding Shuwen Huang Li. Experimental Study on Nutrient Loss of Purple Soils of Slopeland by Simulated Rainfall[J]. Journal of Nanchang College of Water Conservancy and Hydroelectric Power, 1995, 0(Z1) |
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| Authors: | Cai Chongfa Zhang Guangyuan Ding Shuwen Huang Li |
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| Abstract: | By using the simulated rainfall,this paper discussed the soil erosion and nutrient loss of purple soil, which drived from purple sandy-clay deposit rock. The results showed that the loss of nutrients was closely related to soil erosion: that sediment contained more nutrient than top soil (0-5 cm),which was suggested that soil erosion factors,such as cover of plant, slope-degree and rainfail intensity etc,also effected the loss: of nutrient and that the fertilifer were lasily lost at first storm in 24h of application which purple soil preserved some fertiliser. |
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| Keywords: | Nutrient Loss Purple soil soil erosion |
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