Spatio-Temporal Evolution and Driving Factors of Ecosystem Service Value of Urban Agglomeration in Central Yunnan

Abstract

Urbanization and human activity have recently resulted in land use/cover change (LUCC), which has had a detrimental effect on the biological environment, on keeping the ecosystem’s sustainable growth and on comprehending the ecosystem’s quality and changes over the past 20 years in the central Yunnan urban agglomeration. The equivalent factor method and hotspot analysis were used to analyze the spatio-temporal changes in land use and ecosystem service value (ESV) in the urban agglomerations of central Yunnan province, and the effects of land use change on ESV were then examined. This study is based on the grid data of land use in 2000, 2005, 2010, 2015, and 2020. Finally, Geodetector was used to investigate the possible causes of ESV. The results showed that: (1) The urban agglomerations in central Yunnan’s land-use structure and pattern clearly changed between 2000 and 2020, with continual declines in grassland, cultivated land, and woodland, and constant increases in construction land. There was significant growth in both speed and area. (2) The average ESV of the land decreased consistently, the hotspot areas shrank, and the cold-spot areas grew as the ecosystem service function declined and the total amount of ESV decreased by 1.517 billion Yuan. These events were mostly explained by an increase in construction land and a decrease in grassland, cultivated land, and woodland. (3) The synergistic effect of numerous factors is what causes the change in ESV in the urban agglomerations of central Yunnan. The key forces behind ESV change in the research area were land-use intensity, normalized difference vegetation index (NDVI), slope, and people density. The results can help decision makers establish policies for ecological conservation and land use.

Evaluation of typical ecosystem services in Dabie Mountain area and its application in improving residents' well-being

“…The above data are from the Chinese Academy of Sciences Resource and Environmental Science Data Center ( http://www.resdc.cn/ ) and the Geographic Remote Sensing Ecology Network ( http://www.gisrs.cn ). The Normalized Difference Vegetation Index (NDVI) data was extracted from remote sensing images of Geospatial Data Cloud ( http://www.gscloud.cn/ ), the slope data was extracted from DEM, the land use degree and human impact index factors were calculated with reference to relevant literature ( Zhuang and Liu, 1997 ; Yang and Liu, 2022 ), The socio-economic statistics mainly come from the statistical yearbook and the farmer questionnaire survey. The farmers’ data come from interviews and retrospective questionnaire surveys (including village cadres and villagers) in the villages of Jinzhai County in November 2020 and August 2021.…”

Coupling and Coordination Relationship of Economic–Social–Natural Composite Ecosystem in Central Yunnan Urban Agglomeration

“…Yuxi concentrates the ecologically sensitive areas of three lakes and one sea, and assumes important ecosystem service functions. Consequently, future efforts should strictly adhere to regulations aimed at safeguarding these sensitive areas, such as Fuxian Lake, Xingyun Lake, Qilu Lake, and Yangzong Sea [32]. These regulations should prohibit the placement of highly polluting industrial enterprises within the watershed and impose strict limits on Anning City and the construction of new industrial parks.…”

Evaluation of Urban Ecological Security and Measurement of Urban Ecological Resilience

“…Based on the above findings, it is evident that land use changes and ecosystem service value changes in Qiqihar have a very strong correlation during the study time period, and the drivers affecting land use structure changes in Qiqihar indirectly affect the ESV in Qiqihar. Taken together, economic development, population growth, natural environment, and policy factors are important drivers of ESV change Yang and Liu, 2022;Haque et al, 2023). ①The economic level and urbanization rate have increased significantly (Li D et al, 2022), and the demand for construction land in Qiqihar has increased, and the area of ecological land such as woodland, grassland and water area has been shrinking, resulting in an increase in land use intensity and unreasonable utilization structure, which have certain impacts on the ES such as raw material production, hydrological regulation and soil conservation in the ecosystem.…”