A Refined Assessment Model of Ecological Service Value Based on Spatial Control Zoning of Protected Areas
Ecological service value assessment has been widely used in the planning and management of protected areas,and it is of great significance to explore the refined assessment methods related to ecological space management and control.The conventional equivalent method to calculate the ecological service value assessment model has shortcomings,such as complicated calculation processes and rough results.Taking Nanling National Park as an example,the method optimization and refined assessment model construction were carried out.Based on the ecological space management and control unit,the regression relationship between the forest stock and the value of ecological services and the scores of management and control units was identified by the correlation analysis method with the key evaluation index of forest quality--stand volume as the link,so as to build a refined assessment model of ecological service value combined with the management and control units.Through comparison and verification,the calculation results of the two models are highly consistent,accounting for 97.81%of the total area of the slight class difference is less than 5%.In the interval where the difference is more significant than 10%,84%of the small class area is less than 1 hm2,which indicates that the difference between the two models is mainly concentrated in the small area class.The proposed model makes up for the deficiency of the equivalent method in that the value of ecological services of small area units tends to 0 and makes the calculation result more accurate.
Protected areasSpace management and controlEcological service valueForest growing stock
NETL
NSTL
万方数据
