Effect of drought and annual temperature dynamic on duststorm in Sonid grassland, Inner Mongolia
Duststorm is serious natural disaster that arouses national awareness in China. Drought and annual temperature dynamic influences on duststorm occurrence are less studied. In this study, drought months, consecutive drought months. duststorm frequency and vegetation data in a year were utilized to investigate duststorm occurrence frequency, the relationship between duststorm occurring frequency and drought months in a year, and temperature rising range in the spring in Sonid grassland, one of the dust sources. Several results were derived. First, in the study area. duststorm mainly occurred from March to June and duststorm occurrence peaked at mid 1960s and the beginning of 21st century. Second. duststorm occurrence increased as drought months in a year increased and consecutive drought duration elongated, and duststorm occurring frequency exponentially related to drought months and drought duration. Third. duststorm frequency negatively related to temperature rising range (TRR) from March to April. Both the drought and temperature rising in the spring affect the dust storm occurrence by exerting influence on vegetation cover and its reviving.
duststorm drought annual temperature dynamic Sonid Grassland
Peng Fei Liu Shuilin Wang Tao You Quangang
Key laboratory of Desert and Desertificaiton,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou,730000
国际会议
西安
英文
330-334
2010-10-11（万方平台首次上网日期，不代表论文的发表时间）