Temporal and spatial evolution of ecosystem services in Taihang Mountain Area of Baoding under the relationship between supply and demand
In order to clarify the matching relationship between supply and demand of regional ecosystem services and realize the sustainable development of regional ecology and social e-conomy,this paper quantified the supply and demand of grain supply and carbon fixation services in eight counties in Baoding section of Taihang Mountain Area from 2005 to 2020 based on InVEST model,studied the temporal and spatial characteristics of the relationship between supply and demand,and put forward reasonable suggestions for ecosystem service management in Taihang Mountain Area of Baoding.The research results showed that:(1)From 2005 to 2020,the supply of grain supply services in Taihang Mountain Area of Baoding showed a fluctuating upward trend,and both the demand and the ratio of supply and demand showed a continuous upward trend;The supply and demand of water production services were gradually increasing,while the ratio of supply and demand was first increasing and then decreasing.The supply of carbon fixed services first decreased and then increased,the de-mand continued to increase,and the ratio of supply and demand first increased and then de-creased.(2)From 2005 to 2020,the supply-demand ratio of grain supply-water production-carbon fixation service and three ecosystem services in Taihang Mountain Area of Baoding showed the distribution characteristics of"high in northwest and low in southeast".(3)From 2005 to 2020,the supply and demand characteristics of the three ecosystem services in Taihang Mountain Area of Baoding were mainly high supply and low demand,the supply and demand of grain supply-water production-carbon fixed service were mainly supply exceeding demand.The research results could provide scientific information for decision makers to un-derstand the balanced matching of supply and demand of ecosystem services in Taihang Mountain Area of Baoding,and guide the management and planning of ecosystem.
Taihang Mountain Areaecosystem servicessupply and demand analysistempo-ral and spatial evolution