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Assessment of Land Ecological Security from 2000 to 2020 in the Chengdu Plain Region of China

Author

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  • Lindan Zhang

    (The Institute of Geography and Resources Science, Sichuan Normal University, Chengdu 610068, China
    Key Lab of Land Resources Evaluation and Monitoring in Southwest, Ministry of Education, Chengdu 610068, China
    These authors contributed equally to this work.)

  • Wenfu Peng

    (The Institute of Geography and Resources Science, Sichuan Normal University, Chengdu 610068, China
    Key Lab of Land Resources Evaluation and Monitoring in Southwest, Ministry of Education, Chengdu 610068, China
    These authors contributed equally to this work.)

  • Ji Zhang

    (The Institute of Geography and Resources Science, Sichuan Normal University, Chengdu 610068, China
    Key Lab of Land Resources Evaluation and Monitoring in Southwest, Ministry of Education, Chengdu 610068, China)

Abstract

The purpose of land ecological security (LES) assessment is to evaluate the influence of land use and human activities on the land ecosystem. Its ultimate objective is to offer decision-making assistance and direction for safeguarding and rejuvenating the well-being and effectiveness of the land ecosystem. However, it is important to note that there are still significant uncertainties associated with current land ecological safety assessments. This paper presents a comprehensive evaluation model that combines the strengths of subjective and objective weighting methods. The model is built upon an index system developed using the Pressure-State-Response (PSR) framework. To verify the level of LES, theThe results of classifying the total ecosystem service valueTotal Ecosystem Service Value are utilized to verify the level of LES. Furthermore, spatial distribution patterns of regional land ecological safety levels are analyzed using statistical techniques, such as Moran’s I , Mann–Whitney U -test, and Kruskal–Wallis H -test. The findings indicate that: (1) theThe evaluation model developed in this paper achieves a validation accuracy of 75.55%, indicating that it provides a more accurate reflection of the level of land ecological safety in the region; (2) The ecological security index is generally safe, with a mean value in the moderate safety range. It experienced a turning point in 2010, showing initial deterioration followed by improvement, mainly due to the transition between unsafe and relatively safe zones. (3) The level of economic development, topography, and urban-–rural structure are significant factors influencing the spatial concentration of LES in the region, ultimately shaping the spatial pattern of LES in the Chengdu Plain region.

Suggested Citation

  • Lindan Zhang & Wenfu Peng & Ji Zhang, 2023. "Assessment of Land Ecological Security from 2000 to 2020 in the Chengdu Plain Region of China," Land, MDPI, vol. 12(7), pages 1-28, July.
    • Handle: RePEc:gam:jlands:v:12:y:2023:i:7:p:1448-:d:1198491
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    References listed on IDEAS

    as
    1. Lesong Zhao & Guangsheng Liu & Chunlong Xian & Jiaqi Nie & Yao Xiao & Zhigang Zhou & Xiting Li & Hongmei Wang, 2022. "Simulation of Land Use Pattern Based on Land Ecological Security: A Case Study of Guangzhou, China," IJERPH, MDPI, vol. 19(15), pages 1-20, July.
    2. Xinchang Zhang & Min Chen & Kai Guo & Yang Liu & Yi Liu & Weinan Cai & Hua Wu & Zeyi Chen & Yiyun Chen & Jianguo Zhang, 2021. "Regional Land Eco-Security Evaluation for the Mining City of Daye in China Using the GIS-Based Grey TOPSIS Method," Land, MDPI, vol. 10(2), pages 1-18, January.
    3. Dongyan Guo & Dongyan Wang & Xiaoyong Zhong & Yuanyuan Yang & Lixin Jiang, 2021. "Spatiotemporal Changes of Land Ecological Security and Its Obstacle Indicators Diagnosis in the Beijing–Tianjin–Hebei Region," Land, MDPI, vol. 10(7), pages 1-16, July.
    4. Yiran Wang & Dahong Zhang & Yahui Wang, 2021. "Evaluation Analysis of Forest Ecological Security in 11 Provinces (Cities) of the Yangtze River Economic Belt," Sustainability, MDPI, vol. 13(9), pages 1-13, April.
    5. Linyu Xu & Hao Yin & Zhaoxue Li & Shun Li, 2014. "Land Ecological Security Evaluation of Guangzhou, China," IJERPH, MDPI, vol. 11(10), pages 1-22, October.
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    Cited by:

    1. Yaping Zhang & Jianjun Zhang & Yufei Li & Sen Liang & Wei Chen & Yixin Dai, 2024. "Revealing the Spatial-Temporal Evolution and Obstacles of Ecological Security in the Xiamen-Zhangzhou-Quanzhou Region, China," Land, MDPI, vol. 13(3), pages 1-23, March.

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