编号
zgly0001584380
文献类型
期刊论文
文献题名
中国不同区域植被覆被状况和沙尘暴强度的关系分析(英文)
作者
谈明洪
作者单位
KeyLaboratoryofEcosystemNetworkObservationandModeling
InstituteofGeographicSciencesandNaturalResourcesResearch
CAS
母体文献
Journal of Geographical Sciences
年卷期
2016年04期
年份
2016
分类号
P461.7
P425.55
关键词
relationship
dust-stormintensity
landsurfacefeature
northernChina
文摘内容
It is difficult to estimate the effects of vegetation on dust-storm intensity(DSI) since land surface data are often recorded aerially while DSI is recorded as point data by weather stations. Based on combining both types of data, this paper analyzed the relationship between vegetation and DSI, using a panel data-analysis method that examined six years of data from 186 observation stations in China. The multiple regression results showed that the relationship between changes in vegetation and variance in DSI became weaker from the sub-humid temperate zone(SHTZ) to dry temperate zone(DTZ), as the average normalized difference vegetation index decreased in the four zones in the study area. In the SHTZ and DTZ zones, the regression model could account for approximately 24.9% and 8.6% of the DSI variance, respectively. Lastly, this study provides some policy implications for combating dust storms.