| 黄土丘陵区人工草地盖度季动态及其水保效益 |
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| 引用本文： | 张光辉,梁一民. 黄土丘陵区人工草地盖度季动态及其水保效益[J]. 水土保持通报, 1995, 15(2): 38-43 |
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| 作者姓名： | 张光辉 梁一民 |
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| 作者单位： | 中国科学院水利部西北水土保持研究所;中国科学院水利部西北水土保持研究所 |
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| 摘 要： | 该依据野外人工降雨试验结果，对２年生人工沙打旺，草木樨草地盖度季动态及其水土保持效益作了分析和探讨，结果表明，草地盖度季动态呈幂函数分布，盖度与产流开始时间，径流量、泥沙量之间均存在指数相关关系；人工沙打旺草地盖度峰值与黄土丘陵区多年降雨年内分布峰值出现的时间同步，加之盖度较大，具有良好的水土保持效益。
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| 关 键 词： | 人工草地 盖度季动态 水土保持 经济效益 |
| 收稿时间： | 1994-10-12 |
The Seasonal Change of Artificial Grassland Coverage and Its Soil and Water Conservation Benefit in loess Hilly Region |
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| Zhang Cuanghui and Liang Yimin. The Seasonal Change of Artificial Grassland Coverage and Its Soil and Water Conservation Benefit in loess Hilly Region[J]. Bulletin of Soil and Water Conservation, 1995, 15(2): 38-43 |
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| Authors: | Zhang Cuanghui and Liang Yimin |
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| Affiliation: | Northwestern Institute of Soil and water Conservation, Academia Sinica and ministry of water Resource, Yangling, Shaanxi, 712100;Northwestern Institute of Soil and water Conservation, Academia Sinica and ministry of water Resource, Yangling, Shaanxi, 712100 |
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| Abstract: | Based on the experiment data of field simulative rainfall,the seasonal change of coverageof two years old artificial grassland of Astragulus adsurgens and Melilotus albus and their benefits ofsoil and water conservation were analysed and discussed in this paper.The results are showed as fol-low the seasonal change of coverage was power distribution;the correlation are exponent functionbetween coverage and the time of runoff beginning,or runoff amount,or sediment yield seperately,the peak value of coverage of artificial grassland appeared at the same time as the peak value of year-ly rainfall dstribution appeared.Meanwhile,bacause of high coverage,the benefit of soil and waterconservation was very good. |
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| Keywords: | artificial grassland the seasonal change of coverage benefit of soil and water conservation |
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