Changes and Sensitivity Analysis of Ecosystem Services of New Urban Areas in Guanshanhu District, Guiyang, Guizhou Province, China

Abstract

Objective and scientific evaluation of ecosystem services value and inclusion of ecosystem service accounting in national economic accounting system are hot issues in ecological field. Taking Guanshanhu District of Guiyang City in Guizhou Province as the research object, apply remote sensing images, ground monitoring and statistical data as data sources, with the help of variety of empirical models, this paper analyzes the change and sensitivity of ecosystem services in 2000, 2010 and 2020. The result shows that the area of forest and grassland ecosystem increased during 2000-2010 and decreased during 2010-2020. The human settlement ecosystem grew rapidly from 1146.82 hm2 to 7544.29 hm2 during 2000-2020. The farmland ecosystem continued to decrease from 13308.29 hm2 to 6342.33 hm2 during 2000-2020. With the dynamic changes of ecosystem spatial pattern and structure, the value of ecosystem services shows a steady growth trend because of the improving quality of ecosystem by implementing of various ecological engineering programs. The total value of forest and wetland ecosystems was sensitive and resilient to the ecosystem service value coefficient. In the future, it is necessary to establish a strict pre-trial system for the use of forest and wetland, so as to effectively protect forest and wetland resources and meet the growing ecological needs of residents.