Abstract
Land ecological security (LES) evaluation is an essential process for land-use planning in China. Analyzing the LES status of rapid urbanization areas has a significant impact on decision-making of urban development. Based on the integration of ordered weighted averaging (OWA) and sensitivity analysis, this paper focuses on hightening the understanding of indictor weights’s influences to LES evaluation and assisting in making a suitable assignment of weights in Chengdu Plain Economic Zone. The results highlight how the statu of LES, in 2014, is closely linked to the administrator’s attitude and corresponding indictor weights. Particularly, compared the initial results with situations of the focus on key indicators (like population densit, Chemical fertilizer dosage and et al.) or non-key indicators (such as energy consumption and sewage treatment), There are at least 62.5% differences in the evaluation results of ecological safety level. Meanwhile, the sensitivity analysis confirms that the indictor weights of population density, Grain yield per hectare and agricultural mechanization level are sensitive parameters for LES results. Decision makers should focus on the effects and rationality, brought by weight changes of there indictors. These methodologies can reduce the uncertainty of results caused by weight assignment, and provide for formulating LES evaluation standards in this region.
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This research was supported by Social sciences special research funds of Sichuan provincial human resources and social security department (2014) and “Study on regional cultivated land resource multi-source information intelligent management and sharing key techniques of application service platform” research program.
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Tian, R. et al. (2018). Influence of Index Weights on Land Ecological Security Evaluation: The Case Study of Chengdu Plain Economic Zone, China. In: Yuan, H., Geng, J., Liu, C., Bian, F., Surapunt, T. (eds) Geo-Spatial Knowledge and Intelligence. GSKI 2017. Communications in Computer and Information Science, vol 848. Springer, Singapore. https://doi.org/10.1007/978-981-13-0893-2_52
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DOI: https://doi.org/10.1007/978-981-13-0893-2_52
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