基于MODIS/NDVI与EVI的皖江流域植被覆盖比较分析

长江流域资源与环境 >> 2012, Vol. 21 >> Issue (03): 361-.

基于MODIS/NDVI与EVI的皖江流域植被覆盖比较分析

叶琦|赵萍|孙静

（1．安徽师范大学国土资源与旅游学院|安徽芜湖 241003；2．合肥工业大学资源与环境工程学院|安徽合肥 230009；3.安徽师范大学国土资源与旅游学院地理信息系统校级重点实验室|安徽芜湖 241003

出版日期:2012-03-20

COMPARATIVE ANALYSIS OF VEGETATION COVERAGE ALONG THE YANGTZE RIVER IN ANHUI PROVINCE BASED ON MODIS/NDVI AND EVI

YE Qi1, ZHAO Ping2, SUN Jing1,3

(1.College of Land Resources and Tourism,Anhui Normal University,Wuhu 241003,China;2.College of Resources and Environmental Engineering,Hefei University of Technology,Hefei 230000,China;3.Anhui Key Laboratory of Natural Disaster Process and Prevention,Wuhu 241003,China

Online:2012-03-20

摘要/Abstract

摘要：

利用多时相的TERRA/MODIS影像资料比较了皖江流域NDVI和EVI的时空分布特征，并分析了空间分辨率和大气校正对NDVI和EVI的影响。结果表明：MODIS/NDVI与MODIS/EVI所反映的植被覆盖状况基本一致，但5月份较8月份NDVI和EVI的空间分布差异明显，且在植被生长旺盛时期，EVI比NDVI更能反映植被覆盖状况。在相同的空间分辨率下（250 m、500 m、1 000 m），EVI比NDVI能更好的反映植被覆盖的空间差异性，随着空间分辨率的降低，这两种指数反映植被覆盖的差异性在减小。大气校正对NDVI和EVI的影响不同，大气校正前NDVI值小于EVI值，大气校正后NDVI值普遍大于EVI值，但大气校正对NDVI的影响不大，对EVI的影响明显

Abstract:

The temporal and spatial variation characteristics of NDVI and EVI along the Yangtze River in Anhui province are compared by using multitemporal TERRA/MODIS remote sensing images,and the spatial resolution and the atmospheric correction influences on NDVI and EVI are also analyzed in this paper.The results show that the vegetation coverage conditions reflected by MODIS / NDVI and MODIS / EVI are basically the same. The spatial distribution in May shows more obvious differences than that in August,and in vigorous growth period,EVI can reflect the vegetation coverage conditions better than NDVI.In the same spatial resolution (250 m,500 m,1000 m),EVI can reflect the spatial differences of the vegetation coverage much better than NDVI.With the reducing of the spatial resolution,the differences of the vegetation coverage reflected by the two kinds of indexes also decrease.Atmospheric correction has different influences on NDVI and EVI.The values of NDVI are lower than the EVI values before the atmospheric correction,while after the atmospheric correction,the values of NDVI are generally higher than the EVI values.The atmospheric correction has less effect on the NDVI but more significant effect on EVI

叶琦|赵萍|孙静. 基于MODIS/NDVI与EVI的皖江流域植被覆盖比较分析[J]. 长江流域资源与环境, 2012, 21(03): 361-.

YE Qi1, ZHAO Ping2, SUN Jing1,3. COMPARATIVE ANALYSIS OF VEGETATION COVERAGE ALONG THE YANGTZE RIVER IN ANHUI PROVINCE BASED ON MODIS/NDVI AND EVI[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2012, 21(03): 361-.

参考文献

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

推荐阅读 10

[1]	陈亚华,黄少华,刘胜环,王桂萍,丁锋,邵志成,沈振国. 南京地区农田土壤和蔬菜重金属污染状况研究[J]. 长江流域资源与环境, 2006, 15(3): 356 -360 .
[2]	王初, 陈振楼, 王京, 周乃晟, 许世远. 上海市崇明岛公路两侧土壤重金属污染研究[J]. 长江流域资源与环境, 2008, 17(1): 105 .
[3]	班军梅,缪启龙,李雄. 西南地区近50年来气温变化特征研究[J]. 长江流域资源与环境, 2006, 15(3): 346 -351 .
[4]	马鹏红,黄贤金,于术桐,邬震. 江西省上饶县农户水土保持投资行为机理与实证模型[J]. 长江流域资源与环境, 2004, 13(6): 568 -572 .
[5]	姚海林,杨洋, 谷志孟. 垃圾块体填埋法及其应用前景[J]. 长江流域资源与环境, 2005, 14(1): 123 -126 .
[6]	雷广海\|刘友兆,陆效平. 江苏省13城市土地利用集约度时空变异及驱动因素[J]. 长江流域资源与环境, 2009, 18(1): 7 .
[7]	娄保锋,陈永柏,翁立达, 臧小平,束金祥,宋江英,刘成. 水样不同处理方式对高锰酸盐指数测定值的影响[J]. 长江流域资源与环境, 2008, 17(1): 143 .
[8]	李成芳, 曹凑贵, 汪金平, 展茗, 蔡明历. 稻鸭、稻鱼共作对稻田P素动态变化的影响[J]. 长江流域资源与环境, 2009, 18(2): 126 .
[9]	戴天晟孙绍荣赵文会顾宝炎. 区域水资源可持续利用评价的FAHP-PP模型[J]. 长江流域资源与环境, 2009, 18(5): 421 .
[10]	周旭, 张斌, 刘刚才. 元谋干热河谷近30年植被变化遥感监测[J]. 长江流域资源与环境, 2010, 19(11): 1309 .