Evaluation of Land Ecosystem Health Based on Entropy Method and Grey Prediction Model
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    Abstract:

    On the basis of defining the meaning of land ecosystem health, the evaluation index system for land ecosystem health was constructed based on the PSR(press-state-response)model, then an empirical analysis was conducted in Sichuan Province by entropy method and grey prediction model. The results showed that:(1) The level of land ecosystem health had been gradually improved in Sichuan Province from 1999 to 2010, with the index increasing from 0.481 3 to 0.637 2. The degree of land ecosystem health generally experienced two stages, i.e., critical state and sub-health.(2) The pressure index and status index showed a downward trend, while response index, a rising trend.(3) The cultivated land per capita, land reclamation rate, extent of soil erosion, the pesticide load and fertilizer load per unit of cultivated land were verified to be the key constraints for further improvement of land ecosystem health.(4) The level of land ecosystem health showed a steady upward trend in Sichuan Province from 2011 to 2015, and the average annual growth rate reached 2.86%.

    Reference
    [1] 孙丕苓,杨海娟,刘庆果.南水北调重要水源地的土地生态安全动态研究[J].自然资源学报,2012,27(9):1520-1530.
    [2] 张继权,邹桃红,路兴昌,等.模糊综合评判在土地生态系统健康评价中的应用[J].科技导报,2011,29(19):34-39.
    [3] Leopold A. Wilderness as a land laboratory[J]. Living Wilderness, 1941,6(7):2-3.
    [4] Benites J R. Land and Water Development Division[M]. Rome:FAO, 1996.
    [5] 陈美球,刘桃菊,黄靓.土地生态系统健康研究的主要内容及面临的问题[J].生态环境,2004,13(4):698-701.
    [6] 郭琼.基于SPSS软件的主成分分析法探析:榆次区土地生态系统健康评价[J].山西农业大学学报:自然科学版,2012,32(1):58-62.
    [7] 梁喜波.土地生态系统健康评价[D].吉林长春:吉林大学,2008.
    [8] 蔡为民,唐华俊,陈佑启,等.土地利用系统健康评价的框架与指标选择[J].中国人口·资源与环境, 2004,14(1):31-35.
    [9] 郑华伟,张锐,杨兴典,等.基于PSR模型的土地利用系统健康评价及障碍因子诊断[J].长江流域资源与环境,2012,21(9):1099-1105.
    [10] FAO Proceedings. Land Quality Indicators and Their Use in Sustainable Agriculture and Rural Development[R].Proceedings of the Workshop Organized by the Land and Water Development Division FAO Agriculture Department, 1997.
    [11] Rainer W. Development of Environmental Indicator Systems:Experiences from Germany[J].Environmental Management, 2000,25(6):613-623.
    [12] 郭杰,吴斌.土地利用系统健康评价[J].中国土地科学,2011,25(4):71-77.
    [13] 仇蕾.基于免疫机理的流域生态系统健康诊断预警研究[D].江苏南京:河海大学,2006.
    [14] 郑华伟,张锐,刘友兆.基于物元分析的土地利用系统健康诊断[J].中国土地科学,2012,26(11):33-39.
    [15] 高珊,黄贤金.基于PSR框架的1953-2008年中国生态建设成效评价[J].自然资源学报,2010,25(2):341-350.
    [16] 郑华伟.基于改进熵值法的耕地利用集约度评价[J].新疆农垦经济,2010,29(4):53-58.
    [17] 陶晓燕,章仁俊,徐辉,等.基于改进熵值法的城市可持续发展能力的评价[J].干旱区资源与环境, 2006,20(5):38-41.
    [18] 刘思峰.灰色系统理论及其应用[M]. 5版.北京:科学出版社,2010.
    [19] 郭锐利,郑钦玉,刘娟,等.基于熵值法和GM(1,1)模型的重庆城市生态系统健康评价[J].中国环境科学,2012,32(6):1148-1152.
    [20] 周瑞平.GM(1,1)模型灰色预测法预测城市人口规模[J].内蒙古师范大学学报:自然科学汉文版,2005,34(1):81-83.
    [21] 戴亚南,贺新光.长株潭地区生态可持续性[J].生态学报,2013, 33(2):595-602.
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孟展,张锐,刘友兆,钱旭.基于熵值法和灰色预测模型的土地生态系统健康评价[J].水土保持通报英文版,2014,(4):226-231

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History
  • Received:November 07,2013
  • Revised:January 06,2014
  • Online: April 05,2016