| MODIS影像植被时空变化分析——以吉林省为例 |
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| 引用本文： | 赵超,舒红,宣国富.MODIS影像植被时空变化分析——以吉林省为例[J].测绘科学,2010,35(5):173-175. |
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| 作者姓名： | 赵超 舒红 宣国富 |
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| 作者单位： | 武汉大学测绘遥感信息工程国家重点实验室,武汉,430079;安徽省基础测绘信息中心,合肥,230031;武汉大学测绘遥感信息工程国家重点实验室,武汉,430079;东南大学旅游系,南京,210096 |
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| 基金项目： | 国家重点基础研究发展规划项目，国家高技术研究发展计划项目，江苏省教育厅哲学社会科学指导项目，江苏省哲学社会科学基金项目 |
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| 摘 要： | 利用2000至2006年的MODIS-NDVI影像数据,通过年最大NDVI随时间的变化斜率和对变化趋势的分区统计、重心分析及空间自相关分析,探索近年来吉林省植被的时空变化规律。吉林省大多数区域NDVI呈现出稳定或增加趋势,反映出吉林省植被生态系统有所恢复。植被变化趋势具有明显的空间分异特征,东部主要为稳定型,西部主要为增长型,局部区域有衰退迹象,主要分布在吉林省东南角和西南角、长春市市辖区及沿河沿湖地区。空间自相关分析表明,植被变化过程在研究区域内具有较强的空间正相关,即变化趋势在空间上具有趋同性,集聚现象明显。
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| 关 键 词： | 植被 NDVI 时空变化 空间自相关 |
Temporal-spatial analysis of vegetation change based on MODIS images |
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| ZHAO Chao,SHU Hong,Xuan Guo-fu.Temporal-spatial analysis of vegetation change based on MODIS images[J].Science of Surveying and Mapping,2010,35(5):173-175. |
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| Authors: | ZHAO Chao SHU Hong Xuan Guo-fu |
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| Abstract: | In this paper,temporal-spatial change of vegetation in Jilin since recent years was researched based on MODIS-NDVI images from 2000 to 2006 after analyzing the change slope of NDVI with time,zonal statistics,weighted mean center analysis and spatial autocorrelation analysis for vegetation change.Generally,NDVI in most regions was in stable state or increase trend,which means vegetation ecosystem in Jilin was recovering;the tendency of vegetation change is different in space;there is a significant positive spatial autocorrelation of vegetation change in Jilin,that is to say,the regions which have similar change tendency were located more often than expected by random change. |
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| Keywords: | NDVI |
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