| 流域尺度水土保持生物措施减沙效益研究 |
| |
| 引用本文： | 董翠云,黄明斌,郑世清.流域尺度水土保持生物措施减沙效益研究[J].应用生态学报,2002,13(5):635-637. |
| |
| 作者姓名： | 董翠云 黄明斌 郑世清 |
| |
| 作者单位： | 中国科学院-水利部水土保持研究所,杨凌,712100 |
| |
| 基金项目： | 国家自然科学基金项目 (5 0 0 790 2 3 )，国家“十五”科技攻关资助项目 |
| |
| 摘 要： | 1 引 言黄土高原位于黄河中游 ,流经黄土高原的 9大支流进入河口镇至花园口的中游河段 ,总径流量为 187× 10 8ｍ3 ,输沙量占黄河流域总沙量的 90 % .建国以来以修建梯田坝地、造林种草、建谷坊、调整种植结构为主的水土保持工程、生物治理长年不懈 ,其目的在于减水减沙 ,改善流域生态环境 .但是 ,除部分中小尺度流域进入生态、经济效益良性循环的轨道外 ,大部分地区生态环境仍然十分脆弱 ,部分地区有恶化之势 .因此 ,定量评价水土保持工程、生物措施的治理效益是广为关注的研究课题 ,虽相关的研究成果不少 ,但是绝大部分工作是评价水土…
|
| 关 键 词： | 流域尺度 水土保持 生物措施 减沙效益 |
| 文章编号： | 1001-9332(2002)05-0635-03 |
| 修稿时间： | 1999年12月13 |
Benefit of sediment reduction by biological measures in the watershed scale |
| |
| DONG Cuiyun,HUANG Mingbin,ZHENG Shiqing.Benefit of sediment reduction by biological measures in the watershed scale[J].Chinese Journal of Applied Ecology,2002,13(5):635-637. |
| |
| Authors: | DONG Cuiyun HUANG Mingbin ZHENG Shiqing |
| |
| Institution: | Institute of Soil and Water Conservation, Chinese Academy of Sciences, Yangling 712100. |
| |
| Abstract: | Based on the measured data and the model of plotted watershed hydrology, the benefit of sediment reduction by biological harnesses of soil and water conservation was studied in the watershed scale. The result indicated that the erosion modulus in Wangdonggou watershed, which were 1869 t.km-2, 1050 t.km-2, 383 t.km-2, and 504 t.km-2 in the periods of the sixth, seventh, eighth, and ninth five-year plans, respectively, were gradually reduced by comprehensive measures. Taken out the effect of rainfall, the sediment reduction by biological measures of soil and water conservation was increased by 24.1% and 22.4% in the periods of eighth and ninth five-year plans compared to that in the seventh five-year plan. |
| |
| Keywords: | Watershed scale Soil and water conservation Benefit of sediment reduction |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
