Spatiotemporal evolution of water conservation services in north-south transition zone of China and its influencing factors—A case study in Southern Henan Province

Qi Yuxin; Dong Xiaobin; Xiao Xiaomin; Yan Yichen; Ye Qiaoru

doi:10.13961/j.cnki.stbctb.2025.02.034

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Spatiotemporal evolution of water conservation services in north-south transition zone of China and its influencing factors—A case study in Southern Henan Province

- Spatiotemporal evolution of water conservation services in north-south transition zone of China and its influencing factors—A case study in Southern Henan Province
- Bulletin of Soiland Water Conservation Vol. 45, Issue 2, Pages: 337-347(2025)
- 作者机构：
  
  北京师范大学地理科学学部自然资源学院,北京,100875
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2025.02.034
  CLC： X171.1
- Online First：16 May 2025，
  
  Published：2025
- 稿件说明：
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Qi Yuxin, Dong Xiaobin, Xiao Xiaomin, et al. Spatiotemporal evolution of water conservation services in north-south transition zone of China and its influencing factors—A case study in Southern Henan Province[J]. Bulletin of Soiland Water Conservation, 2025, 45(2): 337-347.
DOI：

Qi Yuxin, Dong Xiaobin, Xiao Xiaomin, et al. Spatiotemporal evolution of water conservation services in north-south transition zone of China and its influencing factors—A case study in Southern Henan Province[J]. Bulletin of Soiland Water Conservation, 2025, 45(2): 337-347. DOI： 10.13961/j.cnki.stbctb.2025.02.034.

摘要

[目的

]

探讨豫南地区水源涵养服务的时空演变特征及其影响因素，为中国南北方过渡带水资源管理提供决策参考。[方法

]

基于InVEST模型对2000—2020年豫南地区的产水服务和水源涵养服务进行了定量评估，结合空间自相关分析水源涵养的空间聚集情况，借助最优参数地理探测器探究水源涵养服务的主要影响因子，结合地理加权回归模型在局部空间上揭示了不同因子对水源涵养服务的影响程度及方向。[结果

]

①2000—2020年豫南地区产水量和水源涵养量均呈现显著下降趋势，产水量由3.56×10

下降至2.65×10

，水源涵养量由1.87×10

下降至1.23×10

。②豫南地区水源涵养服务在空间分布上存在明显的聚集情况，以“高—高”聚类和“低—低”聚类为主。③气候因素是水源涵养服务空间异质性形成的主要影响因素，社会经济因素对其影响较小。④在局部空间上，降水量，NDVI和GDP对豫南地区水源涵养服务呈现正向作用，而实际蒸散发和人口密度呈现负向作用。[结论

]

应注重优化豫南地区的土地利用结构，关注南水北调中段工程，对水资源进行合理分配，保障其水生态安全和水环境健康，促进区域水资源的可持续发展。

Abstract

[Objective] The spatiotemporal evolution of water conservation services and its influencing factors in Southern Henan Province was explored

in order to provide decision-making references for water resources management in the north-south transition zone of China. [Methods] The water yield and water conservation services in South Henan Province from 2000 to 2020 were quantitatively assessed based on the InVEST model. The spatial aggregation of water conservation services was analyzed with spatial autocorrelation. The main influencing factors of water conservation services were explored with the help of optimal parameters-based geographical detector. And the degree and direction of the influences of different factors on water conservation services in localized space were revealed by combining with the geographically weighted regression model. [Results] ① From 2000 to 2020

water production and conservation services in Southern Henan Province showed a significant downward trend

with the water yield falling from 3.56×1010 m3 to 2.65×1010 m3

and water conservation declining from 1.87×109 m3 to 1.23×109 m3. ② There is clear aggregation in the spatial distribution of water conservation services in Southern Henan Province

with “high-high” and “low-low” aggregations dominating. ③ Climatic factors are the main elements influencing the formation of spatial heterogeneity in water conservation services; socioeconomic factors have less influence. ④ Locally

precipitation

NDVI

and GDP had positive effects on water conservation services in Southern Henan Province

whereas actual evapotranspiration and population density displayed negative effects. [Conclusion] Attention should be paid to optimizing the land use structure of Southern Henan Province

focusing on the central route of the south-north water transfer project

reasonably allocating water resources to ensure ecological security and environmental health

and promoting the sustainable growth of regional water resources.

关键词

Keywords

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