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长江上游宜宾至朱沱河段水文要素变化及对河道和水生态影响
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Abstract:
为研究长江上游宜宾至朱沱河段水文要素变化及其影响，利用河段内朱沱水文站长系列实测流量、输沙量和水温资料，主要采用Mann-Kendall法分析变化的趋势性和突变性，结果表明：1) 枯水期流量有显著增加趋势；2) 输沙量显著减小；3) 平均水温和最低水温有显著的升高趋势，而最高水温则显著下降。2012年~2021年受采砂、航道整治等因素影响，宜宾–朱沱河段冲刷7929万m3，初步分析了对水生态的可能影响。
In order to study the changes and the impacts of hydrological elements from Yibin to Zhutuo section in the upper reaches of the Yangtze River, the series of observed flow, sediment transport and water tempera-ture data at the Zhutuo hydrological station were analyzed. The Mann-Kendall method was used to analyze the trends and mutations of changes. The results show that: 1) There was a significant increase in flow during the dry season; 2) Significant reduction in sediment transport; 3) The average and minimum water temperatures showed a significant upward trend, but the highest water temperature significantly de-creased. From 2012 to 2021, this river reach was eroded by factors such as sand mining and waterway regulation, with a total scouring amount of 79.29 million m3. The impacts of the changes in hydrological characteristics on aquatic ecology were analyzed preliminarily.
| [1] | 孙志禹, 张敏, 陈永柏. 水电开发背景下长江上游保护区珍稀特有鱼类保护实践[J]. 淡水渔业, 2014, 44(6): 3-8.
SUN Zhiyu, ZHANG Min and CHEN Yongbo. Protection of the rare and endemic fish in the conservation area located in the up-stream of the Yangtze River in the context of hydropower development. Freshwater Fisheries, 2014, 44(6): 3-8. (in Chinese) |
| [2] | 罗慧萍, 靖争, 赵伟华, 等. 溪洛渡、向家坝水库建设运行对下游鱼类栖息地的影响研究[J]. 四川环境, 2023, 42(1): 40-46.
LUO Huiping, JING Zheng, ZHAO Weihua, et al. Study on the influence of construction and operation of the Xiluodu and Xiangjiaba reservoirs on downstream fish habitat. Sichuan Environment, 2023, 42(1): 40-46. (in Chinese) |
| [3] | 吴华莉, 金中武, 周银军, 等. 变化环境下长江上游珍稀特有鱼类国家级自然保护区干流水沙过程演变分析[J]. 长江科学院院报, 2021, 38(7): 7-13.
WU Huali, JIN Zhongwu, ZHOU Yinjun, et al. Evolution analysis on water and sediment processes in the mainstream of national nature reserve for rare and endemic fishes in the upper reaches of the Yangtze River under changing environment. Journal of Yangtze River Scientific Research Institute, 2021, 38(7): 7-13. (in Chinese) |
| [4] | 胡兴坤, 邵科, 阙延福, 等. 金沙江下游宜宾段产漂流性卵鱼类早期资源动态变化[J]. 水生态学杂志, 2023, 44(2): 73-80.
HU Xingkun, SHAO Ke, QUE Yanfu, et al. Dynamic changes of early stage fish resources with drifting eggs in Yibin section of the lower Jinsha River. Journal of Hydroecology, 2023, 44(2): 73-80. (in Chinese) |
| [5] | 朱玲玲, 熊明. 金沙江梯级水库群下游河道河床冲刷分析[J]. 水资源研究, 2023, 12(1): 10-15.
ZHU Lingling, XIONG Ming. Analysis of river bed scour downstream from dams of cascade reservoirs in the lower Jinsha Riv-er. Journal of Water Resources Research, 2023, 12(1): 10-15. (in Chinese) |
| [6] | Kendall, M. G. Rank correlation methods. Lon-don: Charles Griffin and Company Ltd., 1975. |
| [7] | 郝好鑫, 杨霞, 杨梦斐, 等. 金沙江下游梯级水库对水温及鱼类适宜产卵时间的影响[J]. 湖泊科学, 2023, 35(1): 247-256.
HAO Haoxin, YANG Xia, YANG Mengfei, et al. Impacts of the cascade reservoirs of Jinshajiang River on water temperature and fish spawning time. Journal of Lake Sciences, 2023, 35(1): 247-256. (in Chinese) |
| [8] | 高天珩, 田辉伍, 叶超, 等. 长江上游珍稀特有鱼类国家级自然保护区干流段鱼类组成及其多样性[J]. 淡水渔业, 2013, 43(2): 36-42.
GAO Tianheng, TIAN Huiwu, YE Chao, et al. Diversity and composition of fish in the mainstream of national nature reserve of rare and endemic fish in the upper Yangtze River. Freshwater Fisheries, 2013, 43(2): 36-42. (in Chinese) |
| [9] | 任杰, 彭期冬, 林俊强, 等. 长江上游珍稀特有鱼类国家级自然保护区重要鱼类繁殖生态需求[J]. 淡水渔业, 2014(6): 18-23.
REN Jie, PENG Qidong, LIN Junqiang, et al. The fish reproduction ecological requirements of the national nature reserve for the rare and endemic fishes in the upper reaches of the Yangtze River. Freshwater Fisheries, 2014(6): 18-23. (in Chinese) |
| [10] | 王康, 肖洋, 毛劲乔, 等. 水温变化影响下金沙江下游典型鱼类繁殖期研究[J]. 河海大学学报(自然科学版), 2023, 51(2): 50-55.
WANG Kang, XIAO Yang, MAO Jingqiao, et al. Study on the spawning period of typical fishes in the lower reaches of Jinsha River under the influence of water temperature change. Journal of Hohai University (Natural Science Edition), 2023, 51(2): 50-55. (in Chinese) |
| [11] | LI, T, MO, K. L., WANG, J., et al. Mismatch between critical and accumulated temperature following river damming impacts fish spawning. Science of the Total Environment, 2021, 756: 144052. https://doi.org/10.1016/j.scitotenv.2020.144052 |
| [12] | LONG, L. H., JI, D. B., LIU, D. F., et al. Effect of cascading reser-voirs on the flow variation and thermal regime in the lower reaches of the Jinsha River. Water, 2019, 11(5): 1008. https://doi.org/10.3390/w11051008 |
| [13] | 李雨, 邹珊, 张国学, 等. 溪洛渡水库分层取水调度对下游河段水温结构的影响分析[J]. 水文, 2021, 41(3): 101-108.
LI Yu, ZOU Shan, ZHANG Guoxue, et al. Analysis on the influence of layered water intake operation on the water temperature structure in the lower reaches of Xiluodu reservoir. Journal of China Hydrology, 2021, 41(3): 101-108. (in Chinese) |
| [14] | 匡亮, 张鹏, 杨洪雨, 等. 梯级水库叠梁门分层取水水温改善效果的衰减[J]. 长江流域资源与环境, 2019, 28(5): 1244-1251.
KUANG Liang, ZHANG Peng, YANG Hongyu, et al. Study on the reducing effect that stoplog gate has played in cascade res-ervoirs for water temperature stratification. Resources and Environment in the Yangtze Basin, 2019, 28(5): 1244-1251. (in Chi-nese) |
