| 基于集对分析的中国耕地资源安全的时间演变特征研究 |
| |
| 引用本文： | 单娜娜,赖波.基于集对分析的中国耕地资源安全的时间演变特征研究[J].中国人口．资源与环境,2011(Z1). |
| |
| 作者姓名： | 单娜娜 赖波 |
| |
| 作者单位： | 浙江大学东南土地管理学院;新疆农业科学研究院土壤肥料研究所;新疆自治区农业厅土肥站; |
| |
| 摘 要： | 本文根据历史资料和各位专家的相关的研究结果,对建国以来的耕地数据进行了重建,取得了比较可靠的长时间序列的耕地数据,在此基础上,构建了集对分析模型,对建国以来的耕地资源的安全态势进行了系统的分析。结果表明,建国以来中国耕地资源安全贴近度呈现波动式的变化规律,耕地资源安全贴近度在0.4的周围波动,随着时间的推移,波动幅度逐渐变小,趋于平缓。集对分析很好的体现了耕地系统的确定和不确定性,具有计算方便、方法简单、评价客观、合理等特点。
|
| 关 键 词： | 耕地资源安全 时间演变特征 贴近度 |
Temporal Evolution Characteristics of Cultivated Land Resource Security Based on SPA |
| |
| SHAN Na-na, LAI Bo.Temporal Evolution Characteristics of Cultivated Land Resource Security Based on SPA[J].China Polulation.Resources and Environment,2011(Z1). |
| |
| Authors: | SHAN Na-na LAI Bo |
| |
| Institution: | SHAN Na-na1,2 LAI Bo3 (1.College of Public Administration,Zhejiang University,Hangzhou Zhejiang 310029,China,2.The Soil and Fertilizer Research Institute,Xinjiang Academy of Agricultural Sciences,Urumqi Xinjiang 830000,3.Xinjiang Soil and Fertilizer Station,Urumuqi Xinjiang 830011,China) |
| |
| Abstract: | This paper reconstructs cultivated land data since 1949 to obtain the reliable long-term sequence data of cultivated land,and then based on it,systematically analyses the security situation of cultivated land since 1949 in China by the set pair analysis model(SPA).The result demonstrates that close degrees of cultivated land resources security fluctuate around 0.4 and become flat with the passage of time.The SPA can well describe the certain and uncertain character istics of cultivated land system. |
| |
| Keywords: | security of cultivated land resource temporal evolution characteristics close degree |
| 本文献已被 CNKI 等数据库收录！ |
|
