| The Runoff Declining Process and Water Quality in Songhuajiang River Catchment, China under Global Climatic Change | |
| Mu, Xingmin2,3; Li, Ying2; Gao, Peng2,3; Shao, Hongbo1,4; Wang, Fei2,3 | |
| 发表期刊 | CLEAN-SOIL AIR WATER
 |
| ISSN | 1863-0650 |
| 2012-04-01 | |
| 卷号 | 40期号:4页码:394-401 |
| 关键词 | Human Activity Land Use Cover Mann-kendall Trend Test Sustainable Development Water Monitoring |
| 产权排序 | [Shao, Hongbo] Qingdao Univ Sci & Technol QUST, Inst Life Sci, Qingdao 266042, Peoples R China; [Mu, Xingmin; Li, Ying; Gao, Peng; Wang, Fei] NW A&F Univ, Yangling, Peoples R China; [Mu, Xingmin; Gao, Peng; Wang, Fei] Chinese Acad Sci CAS, Inst Soil & Water Conservat, Yangling, Peoples R China; [Shao, Hongbo] Chinese Acad Sci CAS, Yantai Inst Costal Zone Res, CAS Shandong Prov Key Lab Coastal Environm Proc, Yantai, Peoples R China |
| 通讯作者 | Shao, HB (reprint author), Qingdao Univ Sci & Technol QUST, Inst Life Sci, Qingdao 266042, Peoples R China. shaohongbochu@126.com |
| 作者部门 | 滨海湿地实验室 |
| 英文摘要 | The runoff in Songhuajiang River catchment has experienced a decreasing trend during the second half of the 20th century. Serially complete daily rainfall data of 42 rainfall stations from 1959 to 2002 and daily runoff data of five meteorological stations from 1953 to 2005 were obtained. The MannKendall trend test and the sequential version of MannKendall test were employed in this study to test the monthly and annual trends for both rainfall and runoff, to determine the start point of abrupt runoff declining, and to identify the main driving factors of runoff decline. The results showed an insignificant increasing trend in rainfall but a significant decreasing trend in runoff in the catchment. For the five meteorological stations, abrupt runoff decline occurred during 19571963 and the middle 1990s. Through MannKendall comparisons for the area-rainfall and runoff for the two decreasing periods, human activity, rather than climatic change, is identified as the main driving factor of runoff decline. Analysis of land use/cover shows that farmland is most related with runoff decline among all the land use/cover change in Nenjiang catchment. From 1986 to 1995, the area of farmland increased rapidly from 6.99 to 7.61 million hm2. Hydraulic engineering has a significant influence on the runoff decline in the second Songhuajiang catchment. Many large-scale reservoirs and hydropower stations have been built in the upstream of the Second Songhuajiang and lead to the runoff decline. Nenjiang and the Second Songhuajiang are the two sources of mainstream of Songhuajiang. Decreased runoff in these two sub-catchments then results in runoff decrease in mainstream of Songhuajiang catchment. It is, therefore, concluded that high percent agricultural land and hydraulic engineering are the most probable driving factors of runoff decline in Songhuajiang River catchment, China.; The runoff in Songhuajiang River catchment has experienced a decreasing trend during the second half of the 20th century. Serially complete daily rainfall data of 42 rainfall stations from 1959 to 2002 and daily runoff data of five meteorological stations from 1953 to 2005 were obtained. The MannKendall trend test and the sequential version of MannKendall test were employed in this study to test the monthly and annual trends for both rainfall and runoff, to determine the start point of abrupt runoff declining, and to identify the main driving factors of runoff decline. The results showed an insignificant increasing trend in rainfall but a significant decreasing trend in runoff in the catchment. For the five meteorological stations, abrupt runoff decline occurred during 19571963 and the middle 1990s. Through MannKendall comparisons for the area-rainfall and runoff for the two decreasing periods, human activity, rather than climatic change, is identified as the main driving factor of runoff decline. Analysis of land use/cover shows that farmland is most related with runoff decline among all the land use/cover change in Nenjiang catchment. From 1986 to 1995, the area of farmland increased rapidly from 6.99 to 7.61 million hm2. Hydraulic engineering has a significant influence on the runoff decline in the second Songhuajiang catchment. Many large-scale reservoirs and hydropower stations have been built in the upstream of the Second Songhuajiang and lead to the runoff decline. Nenjiang and the Second Songhuajiang are the two sources of mainstream of Songhuajiang. Decreased runoff in these two sub-catchments then results in runoff decrease in mainstream of Songhuajiang catchment. It is, therefore, concluded that high percent agricultural land and hydraulic engineering are the most probable driving factors of runoff decline in Songhuajiang River catchment, China. |
| 文章类型 | Article |
| 资助机构 | Chinese Academy of Sciences[KZCX2-XB2-05-03]; 973 Plan of China[2007CB407203] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | IMPACTS ; BASIN ; VEGETATION ; SHANXI |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
| WOS记录号 | WOS:000302607800008 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/5483 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_滨海湿地实验室 |
| 作者单位 | 1.Qingdao Univ Sci & Technol QUST, Inst Life Sci, Qingdao 266042, Peoples R China 2.NW A&F Univ, Yangling, Peoples R China 3.Chinese Acad Sci CAS, Inst Soil & Water Conservat, Yangling, Peoples R China 4.Chinese Acad Sci CAS, Yantai Inst Costal Zone Res, CAS Shandong Prov Key Lab Coastal Environm Proc, Yantai, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mu, Xingmin,Li, Ying,Gao, Peng,et al. The Runoff Declining Process and Water Quality in Songhuajiang River Catchment, China under Global Climatic Change[J]. CLEAN-SOIL AIR WATER,2012,40(4):394-401. |
| APA | Mu, Xingmin,Li, Ying,Gao, Peng,Shao, Hongbo,&Wang, Fei.(2012).The Runoff Declining Process and Water Quality in Songhuajiang River Catchment, China under Global Climatic Change.CLEAN-SOIL AIR WATER,40(4),394-401. |
| MLA | Mu, Xingmin,et al."The Runoff Declining Process and Water Quality in Songhuajiang River Catchment, China under Global Climatic Change".CLEAN-SOIL AIR WATER 40.4(2012):394-401. |
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