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标题: Spatiotemporal dynamics and evolution relationships between land-use/ land cover change and landscape pattern in response to rapid urban sprawl process: A case study in Wuhan, China

作者: Wang, Q (Wang, Quan); Wang, HJ (Wang, Haijun)

来源出版物: ECOLOGICAL ENGINEERING 卷: 182 文献号: 106716 DOI: 10.1016/j.ecoleng.2022.106716 出版年: SEP 2022

摘要: Urban sprawl is now a worldwide phenomenon, especially in the rapidly developing areas in China. However, the process of land-use/land-cover (LULC) dynamics can lead to dramatic changes in the regional landscape patterns. In this study, we explored the LULC changes and urban sprawl, and their impact on the landscape pattern evolution during 2005-2030. Based on the land-use data of 2005-2015, an LULC map of 2030 was simulated by using the logistic regression, multi-criteria evaluation (MCE), and a cellular automata (CA)-Markov hybrid model. The simulation accuracies of the kappa coefficient and figure of merit (FoM) reached 82.69% and 29.86%, respectively. The results showed that, during 2005-2030, the area of water, urban land, and other construction land will increase by 72.56, 162.63, and 1152.67 km2 respectively, while the area of forest land and unused land will decrease by 107.05 and 13.38 km2, respectively, as well as the land use degree will reach 293.18 in 2030. The landscape spatial pattern will change significantly during 2005-2030, and there is a strong correlation between the landscape pattern dynamics and land use degrees. The patch types in the urban area will tend to be regular and distributed in a balanced trend. There is a good connection between patch types, the degree of landscape aggregation will be gradually improved, the spatial distribution will tend to be concentrated, and the spatial heterogeneity will be enhanced. Changes in land use and landscape patterns during rapid urban sprawl are actively influenced by a combination of natural, socioeconomic, and transportation accessibility. In the future urban construction, the protection of forest land and water areas should be increased, the land use structure should be optimized, the construction land and ecological land should be rationally planned, and natural landscapes should be added in a timely manner to steadily improve the regional environment. Finally, the research results will provide a theoretical basis for supporting regional sustainable development and the formulation of landscape planning policies.

作者关键词: Landscape pattern; LULC change; Urban sprawl; Simulation; CA-Markov; Wuhan

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标题: Evaluation for the spatiotemporal patterns of ecological vulnerability and habitat quality: implications for supporting habitat conservation and healthy sustainable development

作者: Wang, Q (Wang, Quan); Wang, HJ (Wang, Haijun)

来源出版物: ENVIRONMENTAL GEOCHEMISTRY AND HEALTH DOI: 10.1007/s10653-022-01328-3 提前访问日期: JUL 2022

摘要: Currently, the rapid socioeconomic development and urbanization around the world have caused the ecological environment on the earth surface to become extremely fragile and destroyed. In addition, the increasing demand of human beings for material also leads to the unsustainable development of resources and environment. However, how to achieve the win-win goal between socioeconomic development and ecological protection in the context of these impacts? It is becoming a major problem for governments and policy makers. To further reveal the contradiction between man and land, taking Wuhan metropolitan area as the study area, this study mainly proposed a framework for the comprehensive optimization of landscape pattern and ecological environment and constructed the ecological vulnerability mixed evaluation model. Then, the integrated valuation of ecosystem services and trade-offs (InVEST) model was employed to evaluate the changes in habitat quality, focusing on the analysis of the impact mechanism of the evolution of ecological environment. This study found that the hybrid model of landscape vulnerability can successfully explore the landscape ecological vulnerability of Wuhan metropolitan area from 2000 to 2020, and its spatiotemporal differentiation pattern was obvious. The InVEST model showed that the habitat quality had obvious spatial differentiation. On the whole, the overall quality of the habitat was low and the degradation degree was high. Furthermore, our study also showed that the change of landscape ecological environment was influenced by the common potential of local nature and social economy, rather than a single factor. Finally, the main purpose of this study is to help scientifically formulate habitat protection and landscape planning strategies through in-depth study of landscape ecological environment, so as to alleviate man-land contradiction and support regional sustainable development.

作者关键词: Ecological vulnerability; Habitat quality; InVEST model; Geographic detection; Wuhan metropolitan area

地址: [Wang, Quan; Wang, Haijun] Wuhan Univ, Sch Resources & Environm Sci, Wuhan 430079, Peoples R China.

[Wang, Quan; Wang, Haijun] Minist Nat Resources, Key Lab Monitoring Evaluat & Early Warning Terr Sp, Chongqing 401147, Peoples R China.

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

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

电子邮件地址: excellent_wangquan@126.com; landgiswhj@163.com

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