Analysis of value change and driving factors of ecosystem regulating products in Hanzhong
The value of ecosystem regulating products is the main component of Gross Ecosystem Product(GEP)accounting.Exploring the trends and driving factors of GEP dynamics can guide the enhancement of GEP.The value change in ecosystem regulation products and their driving factors were analyzed in Hanzhong from 2011 to 2021.The results showed that the value of ecosystem regulating products in Hanzhong in 2021 was 179.464 billion yuan,with water retention,soil retention,flood mitigation,carbon sequestration,and climate regulation accounting for 99.9% of the total value.From 2011 to 2021,the value of ecosystem regulating products in Hanzhong increased by 9.269 billion yuan.Changes in the area of natural ecosystem,altitude,and change of net primary productivity(NPP)were the major driving factors.These explained 87.9% of the value change.The improvement in forest area and NPP positively promoted the value of regulating services.It is recommended to actively implement ecological protection and restoration project in the future,improve the area and quality of natural ecosystems,ensure the enhancement of regulation service value,and explore mechanisms for value realization of ecological products.These measures will promote the transformation from"lucid waters and lush mountains"to"invaluable assets".