Storage capacity of a karst groundwater reservoir associated with a large dam in a humid subtropical canyon karst area in southwestern China | |
Cheng Zeng![]() ![]() | |
2022 | |
Source Publication | Hydrogeology Journal
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Volume | 30Pages:1989–2012 |
Abstract | Pingzhai Reservoir dam was built in a deep canyon of the southern tributary of the Wu River and is the main water resource used in the Hydro-junction Project to satisfy the water requirements of Central Guizhou Province in southwestern China. The interval basin (i.e., subbasin, encompassing lower reaches between the dam and the backwater end of the main stream contributing to the dam reservoir) of Pingzhai Reservoir is characterized by thick karstified carbonate strata. Hydrological and hydrogeochemical data, including the inflow of the main stream to the interval basin, the reservoir water level, rainfall, reservoir discharge, and concentrations of major ions and stable isotopes of oxygen and hydrogen in water, were collected and analyzed. A conceptual model was constructed using the back-propagation artificial neural network approach and the water balance equation was used to calculate the total storage capacity of the karst underground reservoir associated with the Pingzhai surface reservoir. The results showed that the intensively karstified Lower Triassic Yongningzhen Formation carbonate strata resulted in the creation of a karst groundwater reservoir with a macroscopic volumetric karst rate of ~5.0%. The total storage capacity of the karst underground reservoir is (311 ± 108) × 106 m3, and it accounts for 29% of the total capacity of the Pingzhai surface reservoir. The reliability of the total storage capacity value of the karst underground reservoir was assessed by hydrochemical and stable isotopic methods. These results will aid in the joint management of surface reservoirs and associated underground reservoirs in karst canyon areas. |
DOI | 10.1007/s10040-022-02551-z |
URL | 查看原文 |
Indexed By | SCI |
Language | 英语 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.gyig.ac.cn/handle/42920512-1/13532 |
Collection | 环境地球化学国家重点实验室 |
Affiliation | 1.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, Guizhou, China 2.University of Chinese Academy of Sciences, Beijing, 100049, China 3.Guizhou Water Resources Investment (Group) Limited Company, Guiyang, 550081, Guizhou, China 4.School of Water Resources & Environmental Engineering, East China University of Technology, Nanchang, 330013, Jiangxi, China |
Recommended Citation GB/T 7714 | Cheng Zeng,Chun He,Zaihua Liu,et al. Storage capacity of a karst groundwater reservoir associated with a large dam in a humid subtropical canyon karst area in southwestern China[J]. Hydrogeology Journal,2022,30:1989–2012. |
APA | Cheng Zeng.,Chun He.,Zaihua Liu.,Xiaoyu Gong.,Wangguang Chen.,...&Junzu Deng.(2022).Storage capacity of a karst groundwater reservoir associated with a large dam in a humid subtropical canyon karst area in southwestern China.Hydrogeology Journal,30,1989–2012. |
MLA | Cheng Zeng,et al."Storage capacity of a karst groundwater reservoir associated with a large dam in a humid subtropical canyon karst area in southwestern China".Hydrogeology Journal 30(2022):1989–2012. |
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