中国干旱灾害评估与空间特征分析(英文)

编号 zgly0001585434

文献类型 期刊论文

文献题名 中国干旱灾害评估与空间特征分析(英文)

作者 何斌  吕爱锋  武建军  赵林  刘明 

作者单位 InstituteofGeographicSciencesandNaturalResourcesResearch  CAS  GraduateUniversityofChineseAcademyofSciences  CollegeofGlobalChangeandEarthSystem  AcademyofDisasterReductionandEmergencyManagement  MinistryofCivilAffairs&Ministry 

母体文献 Journal of Geographical Sciences 

年卷期 2011年02期

年份 2011 

分类号 P426.616 

关键词 drought  hazard  spatialcharacteristics  grid  GIS 

文摘内容 Based on the monthly precipitation data for the period 1960-2008 from 616 rainfall stations and the phenology data of main grain crops,the spatial characteristics of drought hazard in China were investigated at a 10 km×10 km grid-cell scale using a GIS-based drought hazard assessment model,which was constructed by using 3-month Standard Pre-cipitation Index (SPI).Drought-prone areas and heavy drought centers were also identified in this study.The spatial distribution of drought hazard in China shows apparent east-west dif-ference,with the eastern part of China being far more hazardous than the western part.High hazard areas are common in the eastern and central parts of Inner Mongolian Plateau,the central part of Northeast China Plain,the northern part of Heilongjiang,the southeastern part of Qinghai-Tibet Plateau,the central and southern parts of Loess Plateau,the southern part of North China Plain,the northern and southern parts of Yangtze River Plain,and Yun-nan-Guizhou Plateau.Furthermore,obvious differences in drought hazard were found both within and between different agricultural zonings.