| 基于改进PSR模型的城市土地利用警情判别研究——以南京市为例 |
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| 引用本文： | 陈磊,姜海.基于改进PSR模型的城市土地利用警情判别研究——以南京市为例[J].地域研究与开发,2021,40(1):175-180. |
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| 作者姓名： | 陈磊 姜海 |
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| 作者单位： | 西华师范大学 管理学院,四川 南充637002;南京农业大学 中国资源环境与发展研究院,南京210095;南京农业大学 中国资源环境与发展研究院,南京210095 |
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| 基金项目： | 南京市国土资源局招标项目(JSZR-ZC2020171110);江苏省国土资源科技项目(2018006)。 |
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| 摘 要： | 基于系统论构建改进的PSR模型,通过探究压力、状态、响应系统要素作用机理构建南京市城市土地利用警情判别指标,并运用数理量化模型开展警情综合评价。结果表明:(1)2009—2016年南京市城市土地利用压力系统和状态系统警情为“倒U”型且呈上升态势,响应系统警情为“倒U”型且呈下降态势。(2)2009—2016年南京市城市土地利用警情总体上为“倒U”型且呈波动上升态势。(3)压力系统是造成南京市城市土地利用综合警情难以显著转变的关键,同时受经济发展与土地集约利用协调度、土地生态治理力度、用地结构与人口分布均衡度等要素影响。
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| 关 键 词： | 城市土地利用 改进PSR模型 警情判别 南京市 |
Study on Alert-situation Discriminant of Urban Land Use Based on Improved PSR Model:A Case of Nanjing City |
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| CHEN Lei,JIANG Hai.Study on Alert-situation Discriminant of Urban Land Use Based on Improved PSR Model:A Case of Nanjing City[J].Areal Research and Development,2021,40(1):175-180. |
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| Authors: | CHEN Lei JIANG Hai |
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| Institution: | (College of Management, China West Normal University, Nanchong 637002, China;China Resources & Environment Policy Academy, Nanjing Agricultural University, Nanjing 210095, China) |
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| Abstract: | Discriminating the alert-situation of urban land use can provide a realistic basis for the sustainable use and scientific governance of regional land.An improved PSR model was built based on the idea of system theory to build alert-situation discriminant indicators of urban land use in Nanjing City by analyzing the element action mechanism among pressure system,state system and response system,and the comprehensive evaluation and analysis of alert-situation were carried out with the comprehensive mathematical quantitative model.The results show that:(1)The alert-situation of pressure system and state system of urban land use in Nanjing City are“inverted U”shape and on rise,and the alert-situation of response system is“inverted U”shape and downward.(2)The alert-situation of urban land use in Nanjing City is“inverted U”shape and wavelike rise.(3)Pressure system is the key for the comprehensive alert-situation of urban land use in Nanjing City to change significantly.It is mainly affected by coordination degree between economic development and intensive utilization of land resources,intensity of land ecological management,land structure and equilibrium degree of population distribution. |
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| Keywords: | urban land use improved PSR model alert-situation discriminant Nanjing City |
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