The assessment of forest ecosystem service value and its changes is of great practical significance for the protection and management of forest ecosystems,and can provide a reference for achieving regional economic-social-ecological synergistic development.Based on remote sensing data and related mapping data,the ecosystem service value(ESV)accounting method was used to assess the forest ecosystem service function of Qilian Mountain National Nature Reserve and identify its hotspots of change from 1980 to 2020.The results show that:1)Qilian Mountain National Nature Reserve is rich in forest resources,with a total forest area of about 636 600 hm2 and a forest coverage rate of 14.44％.Over time,the overall area has shown an increasing trend over the past 40 years,with a total increase of about 11,300 hm2 and a growth rate of 1.81％.2)The forests in the reserve possess great ecosystem service value,and from the perspective of time change,the ESV increased from 45 444 000 000 Yuan to 60 628 000 000 Yuan from 1980 to 2020,with a growth rate of 33.41％,which has shown an obvious increasing trend.From the perspective of the ESV contribution of different ecosystem types,forested land＞shrubland＞thin forest land＞other forest land.In terms of specific ecosystem service values,soil conservation＞water conservation＞flood storage＞tourism and cultural services＞carbon sequestration＞windbreaks and sand solidification＞forest product production.3)Based on the prediction of hotspot areas of ecosystem service function and value change in the reserve,the value of regulating services is extremely vulnerable to the ecosystem change.The hotspot areas for the value change of provisioning services and cultural services remain stable in general,while areas prone to decrease account for 44.21％of the total protected area,which requires close attention.The results of the study provide important scientific insights for forest ecosystem assessment in Qilian Mountain National Nature Reserve.
forest ecosystemsecosystem service valueconservation and managementQilian Mountain National Nature Reserve
NETL
NSTL
万方数据
