基于土地利用变化的长江中游地区生态系统服务供需平衡研究
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1.西北农林科技大学经济管理学院;2.华中农业大学公共管理学院;3.中国环境研究科学院环境基准与风险评估重点实验室

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国家自然科学基金(42101307,42101263);教育部人文社会科学研究项目(21YJC790006;21YJC630174);陕西省社会科学基金(2021R023);西北农林科技大学博士科研启动


Spatio-Temporal Response of Supply-Demand Balance of EcosystemServices based on Land Use Change in the Middle Reaches of the Yangtze River
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1.Northwest A&2.F University

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    摘要:

    [目的]选择长江中游地区作为研究对象和2000—2018年作为研究时段,以期揭示生态系统服务供需平衡的时空特征,并进一步探究土地利用变化对生态系统服务供需平衡的双重效应及其影响机理。[方法]生态系统服务供需量化矩阵和土地利用变化生态贡献率模型。[结果](1)研究期间,长江中游地区生态系统服务供需平衡状况不断恶化,主要原因是由建设用地大规模扩张和耕地、林地大面积缩减带来的生态系统服务供给能力减少和消费需求增加造成的;(2)长江中游地区不同类型生态系统服务供给间的关系在时间尺度上由权衡转为协同,需求和供给平衡间的协同关系在时间尺度上进一步增强,但不同类型生态系统服务供给、需求和供需平衡间的权衡或协同性质及其程度在空间尺度上却存在高度异质;(3)长江中游地区土地利用变化对生态系统服务供需平衡存在改善和恶化双重效应,且恶化效应显著大于改善效应,但引起生态系统服务及其分项服务供需改善和恶化的土地利用变化类型具有时序异质性。[结论]明确土地利用变化和生态系统服务供需平衡的定性和定量关系,有助于通过合理调控土地利用类型转化来实现区域生态环境改善。

    Abstract:

    [Objective] Taking the middle reaches of the Yangtze River as the research area and the period from 2000 to 2018 as the research period, this study aims to reveal the spatio-temporal characteristics of supply-demand balance of ecosystem service, and further to explore the dual effects of land use change on the supply-demand balance of ecosystem service and its influencing mechanism. [Methods] The methods of quantitative matrix of supply-demand of ecosystem service, and contribution rate of land use change were employed. [Results] (1) During the research period, the supply-demand balance of ecosystem services in the middle reaches of the Yangtze River is deteriorating, which is mainly caused by the large-scale expansion of construction land and the large-scale reduction of cultivated land and forest land, resulting in the decrease of ecosystem service supply capacity and the increase of consumption demand. (2) The relationship between ecosystem service supply has changed from trade-off to synergy in time scale, and the synergy between demand and supply-demand balance has been further enhanced in time scale, but the trade-off or synergy between supply, demand, and supply-demand balance is highly heterogeneous in spatial scale. (3) Land use change in the MRYR has dual effects on the supply-demand balance of ecosystem services, and the deterioration effect is significantly greater than the improvement effect, but the types of land use change that cause the improvement and deterioration of supply- demand of ecosystem services and their sub-services have temporal heterogeneity. [Conclusion] Clarifying the qualitative and quantitative relationship among supply and demand of ecosystem services, and land use change, which helps to achieve the improvement of ecological environment by by rationally regulating the transformation of land use types.

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  • 收稿日期:2023-10-17
  • 最后修改日期:2023-12-14
  • 录用日期:2023-12-27
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