标题: Linking supply-demand balance of ecosystem services to identify ecological security patterns in urban agglomerations

作者: Jia, QQ (Jia, Qiqi); Jiao, LM (Jiao, Limin); Lian, XH (Lian, Xihong); Wang, WL (Wang, Weilin)

来源出版物: SUSTAINABLE CITIES AND SOCIETY 卷: 92 文献号: 104497 DOI: 10.1016/j.scs.2023.104497 提前访问日期: MAR 2023 出版年: MAY 2023

摘要: Ecological security patterns (ESP) is an effective approach to identify the priority conservation areas and maintain regional ecological security. The previous ESP studies only focused on the supply of ecosystem services (ESs), but ignored the supply-demand interaction of ESs. In this study, a novel large-scale ESP framework was proposed by introducing the supply-demand scarcity of ESs to revise identification of ecological sources. According to the scarcity theory "the severer ESs imbalance, the higher priority of protection", the ESs scarcity supply capacity (ESSSC) was reconstructed by combining ESs supply with two adjust factors of the urgency of regional eco-protection (UEP) and the priority of ESs type (PET). Finally, ecological sources integrating ESSSC and ecological sensitivity, ecological corridors, and ecological nodes were identified to establish a cross-regional ESP. The results show: (1) the reconstructed ESSSC approach significantly increased ecological sources areas of developed cities in urban agglomerations with the severer overall and structural imbalance, and effect of PET exceeds UEP; (2) appropriate allocation of key protection areas in regions with low supply but high demand and the priority protection of the severely imbalanced ESs types can alleviate environmental injustice; and 3) the extracted 160 ecological corridors and 16 ecological nodes effectively enhanced connectivity among ecological sources (36.2% of the study area), and formed a complete and connected ESP. The scarcity idea for regional coordination can guide the trans-administrative ecological decision making.

作者关键词: Ecosystem services; The supply -demand balance; Scarcity of ecosystem services; Ecological security patterns; Urban agglomerations

地址: [Jia, Qiqi; Jiao, Limin; Lian, Xihong; Wang, Weilin] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Peoples R China.

[Jiao, Limin] Wuhan Univ, Key Lab Geog Informat Syst, Minist Educ, Wuhan 430079, Peoples R China.

[Jiao, Limin] Wuhan Univ, Sch Resource & Environm Sci, 129 Luoyu Rd, Wuhan 430079, Peoples R China.

通讯作者地址: Jiao, LM (通讯作者)，Wuhan Univ, Sch Resource & Environm Sci, 129 Luoyu Rd, Wuhan 430079, Peoples R China.

电子邮件地址: lmjiao@whu.edu.cn

影响因子：10.696