Drought Change Trend Using MODIS TVDI and Its Relationship with Climate Factors in China from 2001 to 2010

查看全文 作　　者：LIANG [1,2,3]Liang;ZHAO Shu-[1,3]he;QIN Zhi-[4]hao;HE Ke-[1,3]xun;CHEN [2]Chong;LUO Yun-[1,3]xiao;ZHOU Xing-[2]dong

机构地区：[1]School of Geographic and Oceanographic Sciences, Nanjing University;[2]School of Geodesy and Geomatics, Jiangsu Normal University;[3]Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, Nanjing University;[4]Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences

出　　处：《Journal of Integrative Agriculture》索引2014年第13卷第7期,共8页

基　　金：supported by the National Basic Research Program of China(2010CB951503);the China Postdoctoral Science Foundation(2013M531329);the Natural Science Foundation of Jiangsu Province,China(BK2012145) 摘　　要：Changes in drought trends and its relationship with climate change in China were examined in this study.The temperature vegetation drought index(TVDI)datasets recorded during 2001 to 2010 in China were constructed by using the moderateresolution imaging spectroradiometer(MODIS)data,and the temporal and spatial variations in drought were analyzed.In addition,the mean temperature,mean precipitation,mean relative humidity,and mean sunshine duration data collected from 557local weather stations in China were analyzed.The relationships between drought and these climate factors were also analyzed by using correlation analysis and partial correlation analysis.Changes in drought tendency were shown to differ among four regions throughout the country.The fluctuations in climate in the regions of northeastern China,Qinling-Huaihe,and central Qinghai were caused by the increase in soil moisture,and that in southern Tibet was caused by the intensification of drought.Meteorological factors exhibited varied effects on drought among the regions.In southern China,the main influential factor was temperature;other factors only showed minimal effects.That in the northern and northwestern regions was sunshine duration,and those in the Qinghai-Tibet Plateau were relative humidity and temperature. 关键词：干旱趋势中国南方 MODIS 气候因子中分辨率成像光谱仪偏相关分析平均气温相对湿度

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Drought Change Trend Using MODIS TVDI and Its Relationship with Climate Factors in China from 2001 to 2010

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