长江中游地区水资源生态足迹时空分布及可持续利用
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TV213.4

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国家社会科学基金项目“长江上游地区生态资源资本化价值核算与实现路径研究”(22BJY083);重庆市社会科学规划项目“推动建立长江上游地区水生态产品价值核算及价值实现机制研究”(2021NDYB085);高等教育科学研究规划课题“将生态文明价值实现机制融入《环境与自然资源经济学》课程教学的路径研究”(23STWM0408)


Spatiotemporal Distribution and Sustainable Utilization of Water Resources Ecological Footprint in Middle Reaches of Yangtze River
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    摘要:

    [目的] 探究长江中游地区水资源生态足迹时空变化及可持续利用,为长江中游地区及其他省市、城市群或流域地区的水资源可持续利用提供决策参考。[方法] 选取长江中游地区覆盖的湖北、湖南和江西3省作为研究对象,以2011—2021年作为研究时段,运用水资源生态足迹模型对3省的生态足迹等相关指标进行时空分析,并基于PSR模型框架构建长江中游地区水资源可持续利用评价指标体系。[结果] ①3省的人均水资源生态足迹和生态承载力总体都呈上升趋势,且生态承载力都高于生态足迹,全部实现生态盈余。江西省的人均水资源生态盈余最高,介于3.186~7.966之间;湖北省的人均水资源生态盈余最低,介于0.304~2.603之间。②3省各用水账户的生态足迹所占比例最大的是生产用水,生活用水次之;生态环境用水占比虽然最小,但是上升幅度最大,其中湖北省的人均生态环境用水足迹上升最明显。③万元GDP水资源生态足迹呈现明显下降趋势,其中江西省最高,湖北省最低,三者之间的差距呈逐年缩小态势。④3省水资源可持续利用的压力指数、状态指数和响应指数整体呈现下降、上升和上升的趋势;综合评价指数都处于波动中上升的趋势,但上升幅度不大,指数值总体都不高。[结论] 3省需要继续加大对生产用水和生活用水合理使用的管理,进一步鼓励生态环境用水的使用,同时加大对实现水资源可持续利用措施的推进,以此提高水资源的可持续利用水平。

    Abstract:

    [Objective] The spatiotemporal changes and sustainable utilization of water resources ecological footprint were explored in the middle reaches of the Yangtze River to provide decision-making references for the sustainable utilization of water resources in this region and in other provinces, metropolitan areas, and river basins. [Methods] This study selected the Hubei, Hunan, and Jiangxi provinces in the middle reaches of the Yangtze River from 2011 to 2021 as the research subjects. Employing the water resource ecological footprint model, a spatiotemporal analysis was conducted on the ecological footprint and related indicators of the three provinces. Based on the pressure-state-response model framework, an evaluation index system for sustainable water resource utilization in the middle reaches of the Yangtze River region was developed. [Results] ① The per-capita water resource ecological footprint and ecological carrying capacity of the three provinces showed an overall increasing trend, with the ecological carrying capacity exceeding the ecological footprint, resulting in an overall ecological surplus. Jiangxi Province had the highest per-capita ecological surplus of water resources, ranging from 3.186 to 7.966, whereas Hubei Province had the lowest, ranging from 0.304 to 2.603. ② The ecological footprint of each water account in the three provinces was predominantly industrial followed by domestic. Although ecological environmental water had the smallest share, it showed the most significant increase, particularly in Hubei Province. ③ The ecological footprint of water resources per ten thousand GDP exhibited a significant downward trend, with Jiangxi Province having the highest value and Hubei Province having the lowest, and the gap between the two gradually narrowed each year. ④ The pressure, state, and response indices for sustainable water resource utilization in the three provinces generally exhibited declining, rising, and increasing trends, respectively. The comprehensive evaluation indices exhibited a fluctuating upward trend; however, the rate of increase was modest and the overall index values remained relatively low. [Conclusion] Continued efforts are required to enhance the rational use of water for industrial and domestic purposes, promote the utilization of ecological and environmental water, and develop advanced measures to achieve sustainable water resource utilization. These findings can serve as a decision-making reference for water resource sustainability in the middle reaches of the Yangtze River and other provinces, city clusters, or basin areas.

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王江婷,赖苹,周小琛.长江中游地区水资源生态足迹时空分布及可持续利用[J].水土保持通报,2024,44(6):129-139

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  • 收稿日期:2023-11-07
  • 最后修改日期:2024-08-29
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  • 在线发布日期: 2024-12-30
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