| 长江上游成为第二条黄河的可能性及其防治对策 |
| |
| 引用本文： | 梁川.长江上游成为第二条黄河的可能性及其防治对策[J].水土保持通报,2002,22(4):62-66. |
| |
| 作者姓名： | 梁川 |
| |
| 作者单位： | 四川大学,水电学院,四川,成都,610065 |
| |
| 基金项目： | 四川省学术带头人培养基金项目"长江上游水土流失综合治理及其评估体系研究" |
| |
| 摘 要： | 从气象因素和下垫面因素出发 ,重点针对长江上游地区的金沙江和嘉陵江流域 2个主要产沙区地表侵蚀和河流泥沙输移特征、来水来沙条件 ,以及人类活动对水土流失的影响程度 ,分析了长江上游成为第 2条黄河的可能性。认为气象因素是影响重点产沙区沙量变化的关键因素 ,而长江上游地面物质侵蚀量和河流泥沙的发展主要受人类不合理的社会经济活动影响。由于长江上游地区水热条件和地貌特征具有相对的稳定性 ,并考虑“长治”工程积极开展水土保持的综合治理工作 ,长江上游的河流泥沙在相当长的一段时期内不会发生显著变化。最后还根据该地区的现实情况 ,提出了进一步防治水土流失的对策与建议
|
| 关 键 词： | 长江上游 地表侵蚀 泥沙输移 水土流失 防治对策 |
| 文章编号： | 1000-288X(2002)04-0062-05 |
| 收稿时间： | 1/2/2002 12:00:00 AM |
| 修稿时间： | 2002年1月2日 |
Possibility and Countermeasures of Yangtze Upstream River Changing into Second Yellow River |
| |
| LIANG Chuan.Possibility and Countermeasures of Yangtze Upstream River Changing into Second Yellow River[J].Bulletin of Soil and Water Conservation,2002,22(4):62-66. |
| |
| Authors: | LIANG Chuan |
| |
| Institution: | College of Hydraulic and Hydroelectric Engineering, Sichuan University, Chengdu 610065, China |
| |
| Abstract: | According to meteorological factor and underlying surface condition of the watershed both Jinsha river and Jialing river in Yangtze upstream river, the probability of Yangtze upstream river changing into second Yellow river are studied based on surface erosion, sediment transportation, water and soil loss, as well as human activity. It shows that the meteorological character is one of the key factors for producing the sediment yield in the watershed, but that the surface erosion and the stream load of Yangtze upstream river have been mainly influenced by unreasonable social economic activities. Because hydro thermal process and geomorphic element have relatively stabilization, adding developing soil and water comprehensive control until recently decade, the stream load in Yangtze upstream river would not evidently change during a considerably long time. Meanwhile some useful countermeasures for preventing soil and water loss are also suggested. |
| |
| Keywords: | upstream of Yangtze river surface erosion sediment transportation soil and water loss prevention countermeasures |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《水土保持通报》浏览原始摘要信息 |
| 点击此处可从《水土保持通报》下载免费的PDF全文 |
|
