| 三江源区MODIS植被指数时空分布特征 |
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| 引用本文： | 宋冬梅,张茜,杨秀春,郭鹏,温少妍. 三江源区MODIS植被指数时空分布特征[J]. 地理研究, 2011, 30(11): 2067-2075. DOI: 10.11821/yj2011110013 |
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| 作者姓名： | 宋冬梅 张茜 杨秀春 郭鹏 温少妍 |
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| 作者单位： | 1. 中国石油大学(华东)地球科学与技术学院,青岛 266555;2. 中国石油大学(华东) 研究生院,青岛 266555;3. 中国农业科学院农业资源与农业区划研究所,北京 100081;4. 遥感科学国家重点实验室,中国科学院遥感应用研究所,北京 100101 |
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| 基金项目： | 国家自然科学基金项目(40501073,40701055); 中国石油大学(华东)自主创新项目(10CX03006A;27R1001055A;27R1101048A) |
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| 摘 要： | 利用16天合成的250m分辨率的MODIS数据，对三江源区NDVI和EVI植被指数时空分布特征进行了系统性的研究。结果表明：NDVI和EVI空间分布呈现出由东南向西北逐步下降的趋势。植被指数随季节呈现出规律变化，最高值出现在8月。不同海拔高度两种植被指数对植被覆盖情况的指示作用比较一致。植被类型的NDVI与EVI的差异...
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| 关 键 词： | MODIS植被指数 植被覆盖类型 气温和降水量 数字高程模型 三江源地区 |
| 收稿时间： | 2011-03-24 |
Spatial and temporal characteristics of MODIS vegetation index in the source region of three rivers on Qinghai-Tibet Plateau in China |
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| SONG Dong-mei,ZHANG Qian,,YANG Xiu-chun,GUO Peng,WEN Shao-yan. Spatial and temporal characteristics of MODIS vegetation index in the source region of three rivers on Qinghai-Tibet Plateau in China[J]. Geographical Research, 2011, 30(11): 2067-2075. DOI: 10.11821/yj2011110013 |
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| Authors: | SONG Dong-mei ZHANG Qian YANG Xiu-chun GUO Peng WEN Shao-yan |
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| Affiliation: | 1. School of Geosciences, China University of Petroleum, Qingdao 266555, Shandong, China;2. Graduate School, China University of Petroleum, Qingdao 266555, Shandong, China;3. Institute of Agricultural Resources and Regional Planning, CAAS, Beijing 100081, China;4. State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing Applications of Chinese Academy of Sciences, Beijing 100101, China |
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| Abstract: | This article conducts a systematic research on the spatial and temporal characteristics in the source region of three rivers on the Qinghai-Tibet Plateau,using 16-day 250 m NDVI and EVI of MODIS data in 2007. The results indicated that the spatial distribution of the NDVI and the EVI had very obvious regional characteristics,which presented a gradual reducing tendency of the NDVI and EVI values from southeast to northwest in the study area. The regular seasonal variations of vegetation index were very disti... |
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| Keywords: | MODIS vegetation index vegetation types temperature and precipitation DEM source region of three rivers |
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