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| 坡度对黄土坡面径流溶质迁移特征的影响 | |
| 引用本文： | 王全九,穆天亮,王辉.坡度对黄土坡面径流溶质迁移特征的影响[J].干旱地区农业研究,2009,27(4):176-179. |
| 作者姓名： | 王全九 穆天亮 王辉 |
| 作者单位： | 1. 西安理工大学,陕西,西安,710048;黄土高原土壤侵蚀与旱地农业国家重点实验室,陕西,杨凌,712100 2. 西安理工大学,陕西,西安,710048 3. 黄土高原土壤侵蚀与旱地农业国家重点实验室,陕西,杨凌,712100 |
| 基金项目： | 中国科学院流域水土工程创新团队资助项目，中国科学院 百人计划 |
| 摘 要： | 通过田间模拟降雨试验,分析了坡度对坡面物质迁移特性的影响.结果显示,坡度对坡面物质迁移的影响十分显著;降雨强度一定时,坡度达到15°左右时,径流量达到最大;坡度对径流养分流失量的影响是通过径流量起主导作用,径流量大相应径流携带养分流失总量增加.利用幂函数对径流溶质浓度变化过程进行了拟合,结果显示幂函数可以很好反映田间坡面溶质随地表径流变化过程,说明在侵蚀环境下径流溶质浓度变化过程符合幂函数. |
| 关 键 词： | 降雨径流 径流溶质 黄土坡面 |
The effects of slope on solute concentration in runoff on the loess slope |
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| WANG Quanjiu,MU Tianliang,WANG Hui.The effects of slope on solute concentration in runoff on the loess slope[J].Agricultural Research in the Arid Areas,2009,27(4):176-179. | |
| Authors: | WANG Quanjiu MU Tianliang WANG Hui |
| Institution: | WANG Quan-jiu1,2,MU Tian-liang1,WANG Hui2(1.Xi'an University of technology,Xi'an,Shaanxi 710048,China,2.Key Lab of Soil Erosion and Dry-land Farming on loess Pleatuea,Yangling,Shaanxi 712100,China) |
| Abstract: | Serious soil erosion reduce the amount of nutrient in soil losses,and the slope degree is one of the main factors of effect soil solute transporting into runoff.In the paper the effects of slope degree on the soil solute transport into runoff was further analyzed through the experimental data in field.The results indicate that runoff amount and velocity may inflect the effect of slope on the runoff formation.The runoff amount reaches to the maximum value when the slope degree is 15 for the fixed rainfall in... |
| Keywords: | rainfall-runoff solute in runoff loess slope |
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