| 江苏省耕地面积变化的时空特征 |
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| 引用本文： | 朱晓,李裕瑞,卞新民. 江苏省耕地面积变化的时空特征[J]. 江苏农业学报, 2009, 25(1) |
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| 作者姓名： | 朱晓 李裕瑞 卞新民 |
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| 作者单位： | 南京农业大学区域农业研究所,江苏,南京,210095;南京农业大学区域农业研究所,江苏,南京,210095;南京农业大学区域农业研究所,江苏,南京,210095 |
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| 基金项目： | 科技部重大专项项目，国家自然科学基金 |
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| 摘 要： | 基于统计数据,应用GIS及空间自相关统计分析方法,以江苏省为例,探讨了其耕地利用变化的时空特征.结果表明:①1985年以来江苏省耕地面积持续减少;苏南地区是1996年以来全省耕地减少的重点区域,但人均耕地减少的县域空间差异并不显著.②1996年以来,江苏省人均耕地面积存在显著的空间自相关特征,即人均耕地面积比较接近的县市在空间分布上比较临近,呈集中分布.
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| 关 键 词： | 江苏省 耕地面积变化 时空特征 空间自相关 |
Temporal-spatial Features of Cultivated Land Area Change in Jiangsu Province |
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| ZHU Xiao,LI Yu-rui,BIAN Xin-min. Temporal-spatial Features of Cultivated Land Area Change in Jiangsu Province[J]. Jiangsu Journal of Agricultural Sciences, 2009, 25(1) |
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| Authors: | ZHU Xiao LI Yu-rui BIAN Xin-min |
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| Affiliation: | Institute of Regional Agriculture;Nanjing Agricultural University;Nanjing 210095;China |
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| Abstract: | Based on GIS technology and spatial autocorrelation analysis,the temporal-spatial features of cultivated land use change in Jiangsu Province were investigated by using statistical data.Influences of cultivated land use change on grain security and ecological safety were also discussed.The area of cultivated land continually decreased in Jiangsu Province since 1985.Spatially,Southern Jiangsu was the most decreased region of cultivated land area since 1996.However,there was no significant difference in per ca... |
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| Keywords: | Jiangsu Province cultivated land area change temporal-spatial feature spatial autocorrelation |
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