干旱区生态环境知识资源中心(Arid): 中国东部NDVI的变化趋势及其与气候因子的相关分析

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	中国东部NDVI的变化趋势及其与气候因子的相关分析
其他题名	Variation Trends in Vegetation N DVI and Its Correlation with Climatic Factors in Eastern China
	崔林丽 1; 史军 2; 肖风劲 3; 范文义 4
来源期刊	资源科学
ISSN	1007-7588
出版年	2010
卷号	32 期号:1 页码:124-131
中文摘要	基于SPOT VGT-NDVI数据、气象站点气温和降水量资料、气候区划图及土地利用类型图,分析了中国东部不同气候区和主要土地利用类型植被NDVI的变化趋势及其与同期和前期气温和降水变化的相关性.结果表明,1998年-2007年期间,中国东部5个气候区和4种主要土地利用类型植被NDVI在全年及四季基本上都增加,其中以夏季增加最多,冬季NDVT增加不显著.植被NDVI与气温和降水的最大相关系数在中国东部由北向南逐渐减小,以中温带亚干旱区相关系数最大,南亚热带湿润区最小.草地NDVI与气温和降水变化的相关系数最大,林地NDVI与气温和降水变化的相关系数较小.中国东部不同气候区和土地利用类型植被NDvI的变化及其与气温和降水的相关性与已有研究结果基本一致.
英文摘要	The interaction between vegetation and the atmosphere is important in fields of geography,ecology and so forth,and has become a research focus in recent years.Normalized Difference Vegetation Index(N DVI)is generally taken as a good indicator of terrestrial vegetation productivity.Understanding influences of climatic factors,in particular precipitation and temperature.on NDVl would greatly benefit prediction of changes in terrestrial vegetation productivity under different climatic scenarios.In the present work.variations in vegetation NDVI and its correlation with temperature and precipitation across different climatic zones and land use types in eastern China were examined in detail based on the SPOT VGT-NDVI data.daily temperature and precipitation observations from 20 5 meteOrOlogical stations,maps of climatic zones and land use types.Results indicated that during the period 1999 to 2007.annual and seasonal vegetation NDVI in five climatic zones and four main land use types in eastern China generally showed an increasing trend.with the most increase in vegetation NDVI over the north sub.tropical humid zone and dry field.In summer,vegetation NDVI increased most.but in winter,increases in vegetation NDVI were not obvious statistically.It was found that the maximum correlation coefficient between vegetation NDVI and temperature and precipitation decreased from the northern to southern part of eastern China,with showing stronger correlations between vegetation NDVI and temperature.vegetation NDVI and precipitation in the mid-temperature semi-arid zone,and weaker correlations between vegetation N DVI and temperature,vegetation NDVI and precipitation in the south sub-tropical humid zone.It was also found that in the mid-temperature semi-arid zone.warm temperate semi-humid zone and south sub-tropical humid zone.the correlation coefficients between vegetation NDVI and temperature were greater than that between vegetation NDVI and precipitation for the same period.With respect to the correlations between NDVI and climatic factors for different land cover types.it was suggested that the correlations between vegetation NDVI and temperature.vegetation NDVI and precipitation were strongest in grassland.but weaker in woodland in eastern China.The correlations between paddy field NDVI and temperature,and dry field NDVI and precipitation also seemed stronger.The correlation toefficient between dry field N DVI and temperature in previous 0-90 days was greater than that between dry field N DVI and precipitation for the same period.The variations in vegetation NDVI and its correlation with temperature and precipitation in different climatic zones and 1and use types in eastern China were basically consistent with other findings in China.
中文关键词	气候区 ; 土地利用类型 ; 气候因子 ; 变化趋势 ; 相关系数 ; 中国东部
英文关键词	NDVI NDVI Climatic zone Land use type Temperature Precipitation Change trend Correlation toefficient Eastern China
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:3822237
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/226099
作者单位	1.上海市卫星遥感与测量应用中心, 上海 201100, 中国; 2.上海市气候中心, 上海 200030, 中国; 3.国家气候中心, 北京 100081, 中国; 4.东北林业大学林学院, 哈尔滨, 黑龙江 150040, 中国
推荐引用方式 GB/T 7714	崔林丽,史军,肖风劲,等. 中国东部NDVI的变化趋势及其与气候因子的相关分析[J],2010,32(1):124-131.
APA	崔林丽,史军,肖风劲,&范文义.(2010).中国东部NDVI的变化趋势及其与气候因子的相关分析.资源科学,32(1),124-131.
MLA	崔林丽,et al."中国东部NDVI的变化趋势及其与气候因子的相关分析".资源科学 32.1(2010):124-131.