| 汀江流域长汀段水沙变化特征及其影响因素 |
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| 引用本文： | 王赫,朱秀端,林敬兰,朱能飞,林根根,蒋芳市,黄炎和,林金石.汀江流域长汀段水沙变化特征及其影响因素[J].水土保持学报,2022,36(2):122-129,137. |
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| 作者姓名： | 王赫 朱秀端 林敬兰 朱能飞 林根根 蒋芳市 黄炎和 林金石 |
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| 作者单位： | 1. 福建农林大学, 福州 350002;2. 福建省南平市水土保持中心, 福建 南平 353000;3. 福建省水土保持试验站, 福州 350001;4. 江西洪屏抽水蓄能有限公司, 江西 宜春 336000;5. 长汀县水土保持站, 福建 长汀 366300 |
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| 基金项目： | 国家重点研发计划项目（2017YFE0118100-9）；长汀县水土流失区土壤质量综合评价项目（KH200049A）；福建省自然资源厅自主研究项目（KY-090000-04-2021-001） |
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| 摘 要： | 河流水沙变化直接反映流域的生态环境状况和土壤侵蚀程度.为探讨南方典型水土流失治理区水沙变化特征及其驱动机制,以汀江流域长汀段1982年1月至2014年12月径流、输沙数据为研究对象,采用CEEMDAN法、Mann-Kendall检验法、Pettitt检验法及构建水沙关系模型分析水沙的变化特征,通过双累积曲线法定量研究降...
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| 关 键 词： | 汀江流域长汀段 水沙变化 人为活动 水土保持 |
| 收稿时间： | 2021/9/22 0:00:00 |
Variation Characteristics and Impacting Factors of Runoff and Sediment in Changting Section of Tingjiang River Basin |
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| WANG He,ZHU Xiuduan,LIN Jinglan,ZHU Nengfei,LIN Gengen,JIANG Fangshi,HUANG Yanhe,LIN Jinshi.Variation Characteristics and Impacting Factors of Runoff and Sediment in Changting Section of Tingjiang River Basin[J].Journal of Soil and Water Conservation,2022,36(2):122-129,137. |
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| Authors: | WANG He ZHU Xiuduan LIN Jinglan ZHU Nengfei LIN Gengen JIANG Fangshi HUANG Yanhe LIN Jinshi |
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| Institution: | 1. Fujian Agriculture and Forestry University, Fuzhou 350002;2. Soil and Water Conservation Center of Nanping City of Fujian Province, Nanping, Fujian 353000;3. Soil Conservation Experimental Station of Fujian Province, Fuzhou 350001;4. Jiangxi Hongping Pumped Storage Company Ltd., Yichun, Jiangxi 336000;5. Soil and Water Conservation Station of Changting County, Changting, Fujian 366300 |
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| Abstract: | The changes of river runoff and sediment directly reflect the ecological environment and the degree of soil erosion in the basin. In order to explore the variation characteristics of runoff and sediment and its'' driving mechanism in the typical soil erosion control area in South China, the runoff and sediment data of Changting section of Tingjiang River Basin from January 1982 to December 2014 were taking as the research object, and the CEEMDAN, Mann-Kendall trend test, Pettitt test and water sediment relationship model were used to analyze the variation characteristics of runoff and sediment. Meanwhile, the double accumulation curve was used to quantitatively study the contribution of rainfall and human activities to the changes of runoff and sediment. The results showed that:(1) The rainfall and runoff in Changting section of Tingjiang River Basin showed no significant decreasing trend, while the sediment rate decreased significantly (p<0.01). The periodicity and trend of runoff and sediment were not synchronous. (2) The sediment transport rate in Changting section of Tingjiang River basin changed suddenly in 2000 (p<0.01). After 2000, the runoff sediment concentration decreased and the inflow sediment coefficient of water sediment relationship curve decreased significantly. (3) The total amounts of runoff and sediment in Changting section decreased after 2000. The contribution rate of human activities to the change of runoff was 68%~81%, and the contribution rate of human activities to the change of sediment was 90%~98%. In human activities, the implementation of soil and water conservation measures dominated by banning management and ecological forest and grass construction were the most important reasons for the reduction of sediment. |
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| Keywords: | Changting section of Tingjiang River Basin variation of runoff and sediment human activities soil and water conservation |
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