Response of the hydrological regime of the Yellow River to the changing monsoon intensity and human activity
文献类型：EI期刊论文
| 作者 | Xu Jiongxin |
| 发表日期 | 2009 |
| 关键词 | Climate change Drought Flood control Ocean engineering Oceanography Runoff Stream flow Water supply Water vapor Watersheds |
| 英文摘要 | In the past 50 years, influenced by global climate change, the East Asian summer monsoon intensity (SMI) changed significantly, leading to a response by the water cycle of the Yellow River basin. The variation in SMI has three stages: (1) 1951-1963, SMI increased; (2) 1963-1965, SMI declined sharply, a feature that may be regarded as an abrupt change; and (3) 1965-2000, SMI remained at low levels and showed a tendency to decline slowly. The decreased SMI led to a reduction in water vapour transfer from the ocean to the Yellow River basin, and thus precipitation decreased and the natural river runoff of the Yellow River also decreased. Due to the increase in population and therefore in irrigated land area, the ratio of net water diversion to natural river runoff increased continuously. Comparison of the ratio of net water diversion to natural river runoff before and after the abrupt change in SMI indicates some discontinuity in the response of the man-induced lateral branch of the water cycle to the abrupt change in SMI. The frequently occurring flow desiccation in the lower Yellow River can be regarded as a response of the water cycle system to the decreasing summer monsoon intensity and increasing population. When the ratio of net water diversion exceeded the ratio of natural runoff of the low-flow season to the annual total natural runoff, flow desiccation in the lower Yellow River would occur. When the ratio of net water diversion is 0.3 larger than the ratio of the natural runoff of the low-flow season to the annual total natural runoff, an abrupt increase in the number of flow desiccation events is likely to occur. Copyright © 2009 IAHS Press. |
| 出处 | Hydrological Sciences Journal
 |
| 卷 | 54期:1页:90-100 |
| 收录类别 | EI |
| 语种 | 英语 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/24469]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Xu Jiongxin. Response of the hydrological regime of the Yellow River to the changing monsoon intensity and human activity. 2009. |
入库方式： OAI收割
来源：地理科学与资源研究所
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