Effects of Seasonal Runoff Change on Eco-environmental Water Demand of Qingshui River Channel
[Objective] Estimation of the eco-environmental water demand of the Qingshui River channel was carried out in order to provide a basis for ensuring normal ecological functioning and rational allocation of water resources in the basin. [Methods] The eco-environmental water demand of different section...
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Science Press
2022-06-01
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| Series: | Shuitu baochi tongbao |
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| Online Access: | http://stbctb.alljournal.com.cn/stbctben/article/abstract/20220304 |
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| _version_ | 1846106738955124736 |
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| author | Li Xuefeng Yin Juan Qiu Xiaocong |
| author_facet | Li Xuefeng Yin Juan Qiu Xiaocong |
| author_sort | Li Xuefeng |
| collection | DOAJ |
| description | [Objective] Estimation of the eco-environmental water demand of the Qingshui River channel was carried out in order to provide a basis for ensuring normal ecological functioning and rational allocation of water resources in the basin. [Methods] The eco-environmental water demand of different sections of the main stream of the Qingshui River channel was calculated based on water consumption and an analysis of multi-year hydrological statistics. The seasonal variation characteristics of runoff along with precipitation time and the multi-year hydrological characteristics were considered in the context of ecological water security. With respect to the requirements of different ecological functions of rivers, the Tennant method, area quota method and 90% guarantee rate minimum monthly water demand method were used to calculate the basic ecological water demand, evaporation water demand, sediment transport water demand, and water self-purification water demand. [Results] The eco-environmental water demand of the Qingshui River channel included basic ecological water demand, evaporation water demand, sediment transport water demand, and self-purification water demand. The total annual water demand was 6.29×106 m3 for the upper reaches of the river, 6.57×107 m3 for the middle reaches, and 1.65×108 m3 for the lower reaches. [Conclusion] The eco-environmental water demand of the Qingshui River channel was directly related to sediment content and water quality, and high sediment content was the main factor for the high eco-environmental water demand of Qingshui River channel. |
| format | Article |
| id | doaj-art-e869084fe25b459ba17cef6e2e2783ef |
| institution | Kabale University |
| issn | 1000-288X |
| language | zho |
| publishDate | 2022-06-01 |
| publisher | Science Press |
| record_format | Article |
| series | Shuitu baochi tongbao |
| spelling | doaj-art-e869084fe25b459ba17cef6e2e2783ef2024-12-27T10:27:56ZzhoScience PressShuitu baochi tongbao1000-288X2022-06-01423232810.13961/j.cnki.stbctb.2022.03.0041000-288X(2022)03-0023-06Effects of Seasonal Runoff Change on Eco-environmental Water Demand of Qingshui River ChannelLi Xuefeng0Yin Juan1Qiu Xiaocong2Yanchi Water Bureau of Wuzhong City, Yanchi, Ningxia 751500, ChinaSchool of Civil and Hydraulic Engineering, Ningxia University, Yinchuan, Ningxia 750021, ChinaSchool of Life Science, Ningxia University, Yinchuan, Ningxia 750021, China[Objective] Estimation of the eco-environmental water demand of the Qingshui River channel was carried out in order to provide a basis for ensuring normal ecological functioning and rational allocation of water resources in the basin. [Methods] The eco-environmental water demand of different sections of the main stream of the Qingshui River channel was calculated based on water consumption and an analysis of multi-year hydrological statistics. The seasonal variation characteristics of runoff along with precipitation time and the multi-year hydrological characteristics were considered in the context of ecological water security. With respect to the requirements of different ecological functions of rivers, the Tennant method, area quota method and 90% guarantee rate minimum monthly water demand method were used to calculate the basic ecological water demand, evaporation water demand, sediment transport water demand, and water self-purification water demand. [Results] The eco-environmental water demand of the Qingshui River channel included basic ecological water demand, evaporation water demand, sediment transport water demand, and self-purification water demand. The total annual water demand was 6.29×106 m3 for the upper reaches of the river, 6.57×107 m3 for the middle reaches, and 1.65×108 m3 for the lower reaches. [Conclusion] The eco-environmental water demand of the Qingshui River channel was directly related to sediment content and water quality, and high sediment content was the main factor for the high eco-environmental water demand of Qingshui River channel.http://stbctb.alljournal.com.cn/stbctben/article/abstract/20220304runoffseasonal changeriver channeleco-environmental water demandecological function |
| spellingShingle | Li Xuefeng Yin Juan Qiu Xiaocong Effects of Seasonal Runoff Change on Eco-environmental Water Demand of Qingshui River Channel Shuitu baochi tongbao runoff seasonal change river channel eco-environmental water demand ecological function |
| title | Effects of Seasonal Runoff Change on Eco-environmental Water Demand of Qingshui River Channel |
| title_full | Effects of Seasonal Runoff Change on Eco-environmental Water Demand of Qingshui River Channel |
| title_fullStr | Effects of Seasonal Runoff Change on Eco-environmental Water Demand of Qingshui River Channel |
| title_full_unstemmed | Effects of Seasonal Runoff Change on Eco-environmental Water Demand of Qingshui River Channel |
| title_short | Effects of Seasonal Runoff Change on Eco-environmental Water Demand of Qingshui River Channel |
| title_sort | effects of seasonal runoff change on eco environmental water demand of qingshui river channel |
| topic | runoff seasonal change river channel eco-environmental water demand ecological function |
| url | http://stbctb.alljournal.com.cn/stbctben/article/abstract/20220304 |
| work_keys_str_mv | AT lixuefeng effectsofseasonalrunoffchangeonecoenvironmentalwaterdemandofqingshuiriverchannel AT yinjuan effectsofseasonalrunoffchangeonecoenvironmentalwaterdemandofqingshuiriverchannel AT qiuxiaocong effectsofseasonalrunoffchangeonecoenvironmentalwaterdemandofqingshuiriverchannel |