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| 长江上游未来50年水土流失变化预测 | |
| 引用本文： | 柴宗新,范建容. 长江上游未来50年水土流失变化预测[J]. 自然灾害学报, 2001, 10(4): 15-19 |
| 作者姓名： | 柴宗新 范建容 |
| 作者单位： | 中国科学院.水利部成都山地灾害与环境研究所, |
| 摘 要： | 长江上游未来50年水土流失变化的影响因素主要有：相对稳定的地貌、地质因素、可能突然发生的地震因素，具有波动特性变化的气象因素和具有双重性的人为因素，人为因素是决定性的因素，分析结果认为，长江上游适宜治理的水土流失面积为26．4万km^2，经过治理后，2050年长江上游可减少土壤侵蚀量8．06亿t，河流年均输沙量减少为3．04亿－4．56亿t。 |
| 关 键 词： | 长江 水土流失 地貌 地质因素 人为因素 水土保持 土壤侵蚀 |
| 文章编号： | 1004-4574(2001)04-0015-05 |
| 修稿时间： | 2001-05-18 |
Forecast of soil erosion change in the upper Yangtze River in the coming 50 years |
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| CHAI Zong-xin,FAN Jian-rong. Forecast of soil erosion change in the upper Yangtze River in the coming 50 years[J]. Journal of Natural Disasters, 2001, 10(4): 15-19 | |
| Authors: | CHAI Zong-xin FAN Jian-rong |
| Abstract: | The influential factors of soil erosion change in upper Yangtze River in the coming 50 years include following: relatively stable geomorphological and geological factors, suddenly arisen earthquake factors, undulate change meteorological phenomena factors; dual character artificial fac- tors. The artificial factor is a decisive factor to influence soil erosion. The analytical results showed that suitable area of soil erosion treatment is 26.4 x 104km2 in the upper Yangtze River. The yearly soil erosion mass will reduce 8.06 x 108 and yearly sediment discharge will be 3.04 x 108 - 4.56 x 108t after soil erosion treatment in 2050. |
| Keywords: | Yangtze River soil erosion change forecast |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |