基于PSR模型的汪清县土地利用系统健康评价研究
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摘要
通过建立基于PSR模型的土地利用系统健康评价体系,运用改进的熵值法和障碍度模型对汪清县土地利用系统的健康水平进行了综合诊断。评价结果显示:2008~2016年吉林省汪清县土地利用系统的健康状况得到改善,综合指数从2008年的0.5105升至2016年的0.6039,健康级别由"临界状态"变为"亚健康";从总体状况来看,压力指数呈下降态势,状态指数、响应指数呈上升态势;通过计算得到2008~2016年系统压力、状态和响应障碍度的年平均变化率分别为3.52%、0.67%和2.44%,因此可以看出系统压力是决定系统健康状况的第一要素。
Through establishing a health evaluation system for land use system based on PSR model,we conducted a comprehensive diagnosis of the health level of land use system in Wangqing county by using the improved entropy method and obstacle degree model. The evaluation results showed that the health status of land use system in Wangqing county during 2008 ~ 2016 was improved,the composite index rose from 0.5105 in 2008 to 0.6039 in 2016,and the health rating changed from"critical status"to "sub-health status". As for the overall conditions of the land use system,the pressure index revealed a decreasing trend,while the status index and response index showed a rising tendency. By calculation,the annual average change rate of pressure,status and response obstacle degree of the system from 2008 to 2016 was 3.52%,0.67% and 2.44%,respectively. Therefore,the system pressure is the first factor that determines the health status of the land use system.
Through establishing a health evaluation system for land use system based on PSR model,we conducted a comprehensive diagnosis of the health level of land use system in Wangqing county by using the improved entropy method and obstacle degree model. The evaluation results showed that the health status of land use system in Wangqing county during 2008 ~ 2016 was improved,the composite index rose from 0.5105 in 2008 to 0.6039 in 2016,and the health rating changed from"critical status"to "sub-health status". As for the overall conditions of the land use system,the pressure index revealed a decreasing trend,while the status index and response index showed a rising tendency. By calculation,the annual average change rate of pressure,status and response obstacle degree of the system from 2008 to 2016 was 3.52%,0.67% and 2.44%,respectively. Therefore,the system pressure is the first factor that determines the health status of the land use system.
引文
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[9]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.
[10]赵晓露,高敏华,高军.乌鲁木齐市土地利用效益的耦合关系分析[J].干旱区资源与环境,2011,25(1):91-95.
[11]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.
[12]鲁春阳,文枫,杨庆媛,等.基于改进TOPSIS法的城市土地利用绩效评价及障碍因子诊断:以重庆市为例[J].资源科学,2011,33(3):535-541.
[2]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:以陕西省商洛市为例[J].自然资源学报,2012,27(9):1520-1530.
[3]孟展,张锐,刘友兆,等.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,2014,34(4):226-231.
[4]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(4):698-701.
[5]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.
[6]高洁芝,夏梦蕾,孟展,等.PSR框架下土地生态系统健康诊断[J].江苏农业科学,2017,45(11):240-243.
[7]邓楚雄,谢炳庚,吴永兴,等.上海都市农业生态安全定量综合评价[J].地理研究,2011,30(4):645-654.
[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):33-37.
[9]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.
[10]赵晓露,高敏华,高军.乌鲁木齐市土地利用效益的耦合关系分析[J].干旱区资源与环境,2011,25(1):91-95.
[11]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.
[12]鲁春阳,文枫,杨庆媛,等.基于改进TOPSIS法的城市土地利用绩效评价及障碍因子诊断:以重庆市为例[J].资源科学,2011,33(3):535-541.