Evaluation of ecological security and influencing factors analysis based on robustness analysis and the BP-DEMALTE model: A case study of the Pearl River Delta urban agglomeration

Li, Zhao-Tian; Yuan, Meng-Jiao; Mengmeng, Hu; Wang, Yafei; Xia, Beicheng

doi:10.1016/j.ecolind.2019.01.067

Cited by 67 publications

(34 citation statements)

References 25 publications

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“…The evaluation methods mainly include the comprehensive index method, matter element model, gray correlation method, ecological footprint method, TOPSIS method, etc. (Behzadian et al, 2012;Gong et al, 2012;Li et al, 2019b;Ma et al, 2019;Seyedmohammadi et al, 2019). The existing research has enriched the research content of land ecological security and promoted the process of ecological civilization construction.…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal Differentiation of Land Ecological Security and Its Influencing Factors: A Case Study in Jinan, Shandong Province, China

Liu

Cao

Zhao

et al. 2022

Front. Environ. Sci.

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Land ecological security plays an important role in the sustainable land resources utilization and social economic development. In this study, the Pressure-State-Response (PSR) model was constructed to measure the land ecological security pattern based on grids scale of Jinan from 2006 to 2016. Then, Moran’s index was used to explore the spatial autocorrelation of the land ecological security score. Finally, the driving factors of land ecological security pattern differentiation in Jinan were revealed by using geographical detector method. The results showed that the level of land ecological security in Jinan, generally, decreased at the beginning and then gradually increased during the research periods. More specifically, land ecological security was represented as a downward trend in the central region and an upward trend in the southern mountainous area. The apparent regional heterogeneity of land ecological security level in Jinan showed the overall distribution pattern “low in the middle and high around” and the direction of urban expansion consistent with the low-level land ecological security. Land ecological security presented a significant spatial autocorrelation. The differentiation of land ecological security pattern was mainly driven by social and economic development factors, among which urban expansion was most important, so urban development should try to avoid occupying those areas with high level of land ecological security. From the study, the valuable information could be provided in the improvement of land ecosystem environment and in the facilitation of sustainable development.

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Section: Introductionmentioning

confidence: 99%

Spatiotemporal Differentiation of Land Ecological Security and Its Influencing Factors: A Case Study in Jinan, Shandong Province, China

Liu

Cao

Zhao

et al. 2022

Front. Environ. Sci.

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“…The nine cities of the region (Guangzhou, Shenzhen, Zhuhai, Foshan, Huizhou, Dongguan, Zhongshan, Jiangmen, and Zhaoqing) are concentrated in the Pearl River Estuary in a "U" shape (Figure 1). The PRD has a subtropical monsoon climate [32], with an average temperature of 21.82 • C.…”

Section: Study Areamentioning

confidence: 99%

Trade-Offs and Synergies of Ecosystem Services in the Pearl River Delta Urban Agglomeration

et al. 2021

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Since ecosystem services (ESs) have become effective tools for urban planning, spatiotemporal analysis of regional ESs and a deep understanding of the trade-offs among ESs are of great significance to regional governance. In this study, the spatial and temporal changes of four basic ESs were analyzed by combining statistical data with the InVEST model across the Pearl River Delta (PRD) urban agglomeration, China. The trade-offs among the related ESs were analyzed at the urban agglomeration scale and the city scale by correlation analysis. The results showed that: (1) Construction land increased by 6.78% from 2000 to 2018, while cultivated land and forest decreased. (2) Water yield showed an increasing trend, while carbon storage, food production, and habitat quality showed a downward trend from 2000 to 2018. (3) The four ecosystem services were significantly correlated, with synergies existing between water yield and food production, and between habitat quality and carbon storage, while other relationships are trade-offs. What is more, the scale has little influence on the direction of ES trade-off or synergy but influences the degree of the relationship. This empirical evidence on ES relationships in urban agglomerations can provide a reference for the sustainable development of ESs and efficient management of urban agglomerations.

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“…The ecological security of any country is an important cornerstone of its national security system [ 1 , 2 ]. Ecological security refers to the degree to which human beings are protected from ecological damage and environmental pollution in terms of production, life, and health, which includes basic elements such as drinking water and food safety, air quality, and healthy ecosystems [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Ecological security assessment at different spatial scales in central Yunnan Province, China

et al. 2022

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Healthy ecosystems are the basis of social and economic development. It is of great significance to conduct ecological security assessments in rapidly urbanization areas. Based on the driving forces, pressure, state, impact, and response (DPSIR) model, five years (1995, 2000, 2005, 2010 and 2015) of remote sensing images, social and economic statistics, and field survey data were used to establish an ecological security assessment index system. The ecological security assessment of central Yunnan Province (CYP) urban agglomeration was conducted at the 1 km × 1 km pixel scale and at the county scale based on the multilevel weighted comprehensive index method. The results showed that: (1) With 2005 as the turning point, the ecological security situation in CYP first decreased and then increased. (2) The ecological security at the county scale was mainly categorized as unsafe. At the pixel scale, ecologically unsafe and relatively unsafe areas were mainly distributed in central, northern, and western CYP. (3) The ecological security deterioration and strengthened spatial distribution differences were caused by habitat fragmentation, different physical geographical conditions, and population agglomeration. These results can provide a basis for the coordination and sustainability of economic development and environmental protection in urban agglomerations with rapid urbanization.

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Evaluation of ecological security and influencing factors analysis based on robustness analysis and the BP-DEMALTE model: A case study of the Pearl River Delta urban agglomeration

Cited by 67 publications

References 25 publications

Spatiotemporal Differentiation of Land Ecological Security and Its Influencing Factors: A Case Study in Jinan, Shandong Province, China

Spatiotemporal Differentiation of Land Ecological Security and Its Influencing Factors: A Case Study in Jinan, Shandong Province, China

Trade-Offs and Synergies of Ecosystem Services in the Pearl River Delta Urban Agglomeration

Ecological security assessment at different spatial scales in central Yunnan Province, China

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