Wang Guozhong,Li Zhongyuan,Yang Dan,et al.Estimation and analysis of ecological base flow value in main stream of Shaying River in Henan Section[J].Research of Soil and Water Conservation,2025,32(01):203-208.[doi:10.13869/j.cnki.rswc.2025.01.036]
沙颍河干流河南段河道生态基流价值估算与分析
- Title:
- Estimation and analysis of ecological base flow value in main stream of Shaying River in Henan Section
- 文章编号:
- 1005-3409(2025)01-0203-06
- Keywords:
- ecological base flow value; the main stream of Shaying River; Henan section; safeguard compensation
- 分类号:
- X196
- 文献标志码:
- A
- 摘要:
- [目的]为使人们认识河道生态基流的重要性,对其价值进行量化,以便推动生态基流保障补偿工作的开展。[方法]以沙颍河干流河南段为例,基于生态基流功能分析,将生态基流价值划分为维持河道连通、局地气候调节、泥沙输送、维系河滩湿地、生物多样性维护、净化水质、水产品生产、科研与文化娱乐等; 河道气候调节价值的计算采用水体蒸发的吸热量与释放相同热量的标煤用量构建的估算模型,其他价值的测算则是基于资源环境经济学算法。[结果]2021年河南段气候调节价值为6.459亿元、泥沙输送价值5.056亿元、维持河滩湿地价值0.96亿元、生态多样性维护价值0.22亿元、水质净化价值10.28亿元、水产品生产价值10.092亿元、文化娱乐价值57.38亿元,则沙颍河干流2021年河南段生态基流总价值90.447亿元。[结论]各河段因所处位置、流域面积、区间长度等情况不同,生态基流价值差异较大,各河段生态基流价值占当地GDP比例均在1%以内,说明计算结果的合理性,也便于今后流域水土流失治理、生态保护与保障补偿工作的推进。
- Abstract:
- [Objective]The aims of this study are to make people realize the importance of ecological base flow, its value was quantified, and to promote the work of ecological base flow guarantee compensation. [Methods]The main stream of Shaying River in Henan section was taken as an example. By analysis of ecological base flow function, the value of river ecological base flow was divided into maintaining river connectivity, local climate regulation, sediment transport, maintaining river wetland, biodiversity maintenance, water purification, aquatic product production, providing scientific research and cultural entertainment, etc. The value of climate regulation to river channels was estimated by the model built based on the amount of standard coal used to release the same heat amount which absorbed heat during water evaporating. The calculation of other values was carried out by adopting the resource and environmental economics algorithm. [Results]In 2021, the value of climate regulation in Henan section was 645.9 million yuan, the value of sediment transport was 505.6 million yuan, the value of maintaining river wetland was 96 million yuan, the value of maintaining ecological diversity was 22 million yuan, the value of water purification was 1.028 billion yuan, the value of aquatic product production was 1.092 billion yuan, and the value of cultural entertainment was 5.738 billion yuan, and the total value of ecological base flow was 9.044 7 billion yuan in Shaying River in Henan section. [Conclusion]The ecological base flow value of each reach varied greatly due to the different location, basin area and interval length. For each river segment, the ratio of the ecological base flow value to the local GDP is less than 1 per cent, which shows the rationality of the calculation results, and also facilitates the promotion of soil and water loss control, ecological protection and compensation in the future.
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备注/Memo
收稿日期:2024-03-23 修回日期:2024-04-18
资助项目:河南省科技攻关计划 “沙颍河干流生态基流价值分析与保障补偿机制”(GG202230)
第一作者:王国重(1972—),男,河南南阳人,正高级工程师,博士,从事水文水资源、水土保持方面工作。E-mail:398248738@qq.com