TY - JOUR

T1 - Identifying key areas of imbalanced supply and demand of ecosystem services at the urban agglomeration scale

T2 - A case study of the Fujian Delta in China

AU - Xin, Ruhong

AU - Skov-Petersen, Hans

AU - Zeng, Jian

AU - Zhou, Jianhua

AU - Li, Kai

AU - Hu, Jiaqi

AU - Liu, Xiang

AU - Kong, Jiangwei

AU - Wang, Qianwen

PY - 2021

Y1 - 2021

N2 - The coordinated supply and demand of ecosystem services (ESs) is important for ensuring regional sustainable development. However, research identifying key areas of imbalanced supply and demand of ESs at the urban agglomeration scale is limited. Therefore, in this study, using the Fujian Delta urban agglomeration of China as the research area, based on multi-source data, and analysis tools, such as ArcGIS, ENVI, and GeoDa, we constructed a research framework and indicator system for ESs supply and demand to determine the spatial change law, matching degree, and coupling coordination degree (CCD) of the ESs. On this basis, the key areas of imbalanced supply and demand of ESs were identified, and optimization strategies were proposed. The results showed that (1) there is obvious spatial heterogeneity between ESs supply and demand in the study area, and different degrees of spatial changes occurred with urbanization. Specifically, areas with large changes were concentrated in urban core areas and economic development zones. (2) The matching degree between ESs supply and demand is quite diverse and shows a trend of polarization. Under the influence of urbanization, some cities began facing ESs supply shortages. (3) Overall, the CCD between ESs supply and demand in the study area is in a state of mild incoordination, but with increasing urbanization, some cities have turned into a state of extreme incoordination. Our results indicate that the ESs supply and demand status in some cities at the urban agglomeration scale has become increasingly severe. Therefore, it is necessary to focus on certain "key areas" to formulate optimization strategies. For key areas with "low supply-high demand" and extreme incoordination, the population and land use intensity should be controlled to reduce the ESs demand level. Meanwhile, for key areas with "high supply-low demand" and extreme incoordination, the utilization efficiency of ecological resources should be improved to enhance the ESs supply capacity. The results of this study will help decision-makers optimize the relationship between ESs supply and demand in order to achieve the sustainable development of urban agglomeration. (c) 2021 Elsevier B.V. All rights reserved.

AB - The coordinated supply and demand of ecosystem services (ESs) is important for ensuring regional sustainable development. However, research identifying key areas of imbalanced supply and demand of ESs at the urban agglomeration scale is limited. Therefore, in this study, using the Fujian Delta urban agglomeration of China as the research area, based on multi-source data, and analysis tools, such as ArcGIS, ENVI, and GeoDa, we constructed a research framework and indicator system for ESs supply and demand to determine the spatial change law, matching degree, and coupling coordination degree (CCD) of the ESs. On this basis, the key areas of imbalanced supply and demand of ESs were identified, and optimization strategies were proposed. The results showed that (1) there is obvious spatial heterogeneity between ESs supply and demand in the study area, and different degrees of spatial changes occurred with urbanization. Specifically, areas with large changes were concentrated in urban core areas and economic development zones. (2) The matching degree between ESs supply and demand is quite diverse and shows a trend of polarization. Under the influence of urbanization, some cities began facing ESs supply shortages. (3) Overall, the CCD between ESs supply and demand in the study area is in a state of mild incoordination, but with increasing urbanization, some cities have turned into a state of extreme incoordination. Our results indicate that the ESs supply and demand status in some cities at the urban agglomeration scale has become increasingly severe. Therefore, it is necessary to focus on certain "key areas" to formulate optimization strategies. For key areas with "low supply-high demand" and extreme incoordination, the population and land use intensity should be controlled to reduce the ESs demand level. Meanwhile, for key areas with "high supply-low demand" and extreme incoordination, the utilization efficiency of ecological resources should be improved to enhance the ESs supply capacity. The results of this study will help decision-makers optimize the relationship between ESs supply and demand in order to achieve the sustainable development of urban agglomeration. (c) 2021 Elsevier B.V. All rights reserved.

KW - Ecosystem services

KW - Spatial changes

KW - Coupling coordination degree

KW - Urban agglomeration

KW - NIGHTTIME LIGHT DATA

KW - ECOLOGICAL SECURITY

KW - SOCIAL DEMAND

KW - TRADE-OFFS

KW - LANDSCAPE

KW - DYNAMICS

KW - FLOW

KW - DIFFERENTIATION

KW - CLASSIFICATION

KW - URBANIZATION

U2 - 10.1016/j.scitotenv.2021.148173

DO - 10.1016/j.scitotenv.2021.148173

M3 - Journal article

C2 - 34118666

VL - 791

JO - Science of the Total Environment

JF - Science of the Total Environment

SN - 0048-9697

M1 - 148173

ER -