| 不同治理度下小流域正态整体模型试验——林草措施对小流域径流泥沙的影响 |
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| 引用本文： | 袁建平,蒋定生,甘淑.不同治理度下小流域正态整体模型试验——林草措施对小流域径流泥沙的影响[J].自然资源学报,2000,15(1):91-96. |
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| 作者姓名： | 袁建平 蒋定生 甘淑 |
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| 作者单位： | 1. 中国科学院、水利部水土保持研究所,陕西杨陵712100;
2. 北京师范大学资源与环境科学系,北京100875;
3. 浙江大学环境资源学院,浙江杭州310029 |
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| 基金项目： | 国家“九五”科技攻关项目!“区域水土流失防治与农业持续发展重大共性关键问题研究” (96 -004 -05 -12)资助。 |
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| 摘 要： | 首次运用正态整体模型模拟试验方法研究不同林草植被覆盖度下小流域径流泥沙变化规律,结果表明 :小流域林草植被具有良好的减水减沙效益 ,初步得出小流域治理水土保持林草措施最低下限值为60 % ,取得最佳水保效益的林草覆盖度值为78% ,流域径渗比临界值为林草覆盖度65%。
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| 关 键 词： | 覆盖度 小流域 模型试验 林草措施 |
| 收稿时间： | 1999-01-25 |
| 修稿时间： | 1999－01－25 |
Simulated
experiment on normal integral model of different control degrees for small watershed |
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| YUAN Jian ping,JIANG Ding sheng,GAN Shu.Simulated
experiment on normal integral model of different control degrees for small watershed[J].Journal of Natural Resources,2000,15(1):91-96. |
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| Authors: | YUAN Jian ping JIANG Ding sheng GAN Shu |
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| Institution: | 1. Institute of Soil and Water Conservation, Chinese Academy of Science and Ministry of Water Resources, Yangling, Shaanxi 712100, China;
2. Department of Resources and Environment,Beijing Normal University,BeiJing 100875,China;
3. Zhejiang University,Hangzh ou,Zhejiang 310029,China |
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| Abstract: | Results of simulating Experiment on Normal Integral Model of different forest and grass coverage degrees,show that forest and grass measures of small watershed are effective in reducing runoff and sediments.They can attain initially the lowest value of 60 percent and the best value of 78 percent in conserving soil and water by taking forest and grass measures for small watershed management, giving the critical value of 65 percent of runoff and infiltration ratio for small watershed. |
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| Keywords: | coverage degree small watershed model experiment forest and grass measure |
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