检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]四川农业大学经济管理学院,四川雅安625014 [2]南京农业大学公共管理学院,江苏南京210095
出 处:《国土与自然资源研究》2011年第4期38-40,共3页Territory & Natural Resources Study
基 金:四川农业大学"211工程"三期重点学科建设项目
摘 要:从农地集约利用中的人地关系入手,将"压力—状态—响应"模型引入农地集约利用评价,构建基于PSR模型的农地集约利用评价指标体系,并对四川省农地集约利用状况进行评价。结果表明,1978-2008年四川省农地集约利用水平呈波动上升的趋势,且波动幅度较小;状态指数对集约水平贡献较大,压力指数贡献较小;PSR系统的协调度与农地集约利用水平成高度正相关,充分说明PSR各子系统及其内部各因子之间的协调性很大程度上可以反映农地集约利用的均衡度,模型可信度较高。Starting with the analysis of the man-land relationship in the course of agricultural land intensive utilization,and the"pressure —state—response"model being introduced for evaluation of agricultural land intensive utilization,the index system of agricultural land intensive utilization based on PSR model was established,and then the agricultural land intensive utilization was calculated with the formation of the index system in Sichuan province.The results showed that the level of agricultural land intensive utilization in Sichuan Province showed a rising trend fluctuations and the less volatile from 1978 to 2008.The condition index had greater contribution to the intensity level,while the stress index had less one.Agricultural land intensive utilization was positive correlate with the harmonious degree of PSR,which showed that the harmonious degree between every subsystem of PSR and other inner factors could reflect the balance degree of agricultural land intensive utilization,and also indicated that model was reasonable.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.117