Driving Factors and Evolution of Supply and Demand of Water Conservation Services in Raohe River Basin

Gao Minghui; Cai Haisheng; Zhang Xueling; She Yan; Peng Siqing

doi:10.13961/j.cnki.stbctb.2024.02.039

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Driving Factors and Evolution of Supply and Demand of Water Conservation Services in Raohe River Basin

- Driving Factors and Evolution of Supply and Demand of Water Conservation Services in Raohe River Basin
- Bulletin of Soiland Water Conservation Vol. 44, Issue 2, Pages: 389-399(2024)
- 作者机构：
  
  1. 江西农业大学江西省自然资源利用科技与管理创新研究基地/南昌市鄱阳湖生态重点实验室富硒农业产业发展研究中心,江西,南昌,330045
  2. 江西农业大学国家林草局鄱阳湖流域森林生态系统保护与修复实验室,江西,南昌,330045
  3. 自然资源部大湖流域国土空间生态保护修复工程技术创新中心,江西,南昌,330045
  4. 江西省国土空间调查规划研究院,江西,南昌,330045
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2024.02.039
  CLC： S157;S727.21
- Published：2024
- 稿件说明：
移动端阅览
Gao Minghui, Cai Haisheng, Zhang Xueling, et al. Driving Factors and Evolution of Supply and Demand of Water Conservation Services in Raohe River Basin[J]. Bulletin of Soiland Water Conservation, 2024, 44(2): 389-399.
DOI：

Gao Minghui, Cai Haisheng, Zhang Xueling, et al. Driving Factors and Evolution of Supply and Demand of Water Conservation Services in Raohe River Basin[J]. Bulletin of Soiland Water Conservation, 2024, 44(2): 389-399. DOI： 10.13961/j.cnki.stbctb.2024.02.039.

摘要

[目的] 探究流域水源涵养服务供需的时空分异特征及主要驱动因素，为流域水资源管理和优化配置及生态安全与保护提供科学依据和参考。 [方法] 以饶河流域为研究区，基于InVEST模型和多源数据定量评估研究区水源涵养服务供给、需求，根据供需指数得到水源涵养服务供需匹配空间关系，利用地理探测器进一步探究水源涵养服务供需关系空间异质性的主要驱动因素。 [结果] ①2005—2020年水源涵养服务供给和需求量均呈现先增后减的趋势，不同土地利用类型的水源涵养能力具有显著差异，其中林地和草地水源涵养能力明显高于耕地和城乡工矿用地； ②水源涵养服务供给和需求空间分布具有明显的空间异质性和不匹配特征，水源涵养供需匹配赤字区主要分布在西部鄱阳县、万年县、乐平市、昌江区和珠山区，盈余区分布在北部浮梁县、东部婺源县、德兴市和弋阳县；③自然因素中年潜在蒸散发、高程和林地覆盖率是影响水源涵养服务供需关系的主要因素，同时，城乡工矿用地和耕地覆盖率等人为因素起主导作用，自然因素和人为因素交互作用，加剧水源涵养服务供需失衡。 [结论] 饶河流域水源涵养服务供需关系优化存在挑战，未来应在该地区加快建立生态补偿机制，优化林地水源涵养功能，提高水源涵养服务供给，提升水资源利用效率，进一步实现区域水源涵养服务供需平衡，促进生态系统与社会经济系统协调发展。

Abstract

[Objective] The spatiotemporal characteristics and main driving factors of water supply and demand for water conservation services in a river basin were explored in order to provide a scientific basis and reference for water resource management and optimal allocation

ecological security

and protection. [Methods] The supply and demand of water conservation services in the Raohe River basin study area were quantitatively evaluated based on the InVEST model and multi-source data. A matching spatial relationship between supply and demand of water conservation services was obtained according to the supply and demand index

and the main driving factors of spatial heterogeneity of the supply and demand relationship of water conservation services were further explored by using geographic detectors. [Results] ① From 2005 to 2020

both the supply and demand of water conservation services showed a trend of first increasing and then decreasing

and the water conservation capacity of different land use types had significant differences

among which the water conservation capacities of forest land and grassland were significantly higher than those of cultivated land and urban and rural industrial and mining land. ② The spatial distribution of supply and demand of water conservation services had obvious spatial heterogeneity and mismatch characteristics. The matching deficit area of supply and demand of water conservation services was mainly located in Poyang

Wannian County

Leping City

Changjiang

and Zhushan District in the west

while the surplus area was located in Fuliang County in the north

and in Wuyuan County

Dexing City

and Yiyang County in the east. ③ Among the natural factors

annual potential evaportanspiration

elevation and forest coverage rate were the main factors affecting the supply and demand relationship of water conservation services. At the same time

human factors such as the coverage rate of industrial and mining land and cultivated land in urban and rural areas played a leading role. The interaction between natural factors and human factors aggravated the imbalance between supply and demand of water conservation services. [Conclusion] There were challenges in the optimization of supply and demand of water conservation services in the Raohe River basin. In the future

the establishment of an ecological compensation mechanism should be accelerated in this area

the function of forest water conservation should be optimized

the supply of water conservation services should be increased

and the efficiency of water resource utilization should be increased. Efforts should be made to balance supply and demand of regional water conservation services

and to promote the coordinated development of ecological systems and socio-economic systems.

关键词

Keywords

references

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