Yang Jun, Tang Xinglong, Yuan Shujun, et al. Supply and Demand of Multi-scale Ecosystem Services and Their Influencing Factors in Hu'nan Province[J]. Bulletin of Soiland Water Conservation, 2023, 43(6): 272-281.
DOI:
Yang Jun, Tang Xinglong, Yuan Shujun, et al. Supply and Demand of Multi-scale Ecosystem Services and Their Influencing Factors in Hu'nan Province[J]. Bulletin of Soiland Water Conservation, 2023, 43(6): 272-281. DOI: 10.13961/j.cnki.stbctb.2023.06.033.
Supply and Demand of Multi-scale Ecosystem Services and Their Influencing Factors in Hu'nan Province
[Objective] The distribution pattern of ecosystem service supply and demand and their main driving factors were analyzed in order to provide a scientific reference for regional ecological protection practices and ecological environmental improvement. [Methods] The supply and demand of five ecosystem services in Hu'nan Province from 2000 to 2020 were assessed
including food production
carbon sequestration
water conservation
soil conservation
and habitat quality by use of the InVEST model
ArcGIS
and other tools to analyze their spatial and temporal evolution patterns and spatial matching relationships
and to determine the driving factors affecting the supply-demand ratios of ecosystem services at the grid scale and county scale using an optimal parameter geodetector model. [Results] ① The total supply of ecosystem services in Hu'nan Province was greater than the total demand. The supply of carbon sequestration services and habitat quality services as well as the demand for water conservation services decreased over time
while the supply and demand of other ecosystem services increased. ② The distribution of supply and demand of various ecosystem services in Hu'nan Province
the clustering characteristics of supply-demand ratios
and the spatial heterogeneity of the spatial matching of supply and demand were obvious. ③ There were some differences in the dominant factors of ecosystem service supply-demand ratios between the two scales
and the influence of socio-economic factors was more significant at the county scale than at the grid scale. The interaction between land use factors and other factors explained the spatial variation of ecosystem service supply-demand ratios more strongly. [Conclusion] The contradiction between supply and demand of ecosystem services at different scales was exceptional
and government agencies at all levels should develop more precise ecological management practices in the future
and use them as a basis to promote the rational use of regional land and to ultimately achieve the goal of regional green development.
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