The spatio-temporal changes and intensity of gale disasters in Southern Xinjiang during 1949-2008 were analyzed using data such as the death toll,the total area of disaster affected farmland,the economic losses and the total number of death beasts which were caused by gale disasters.The results can be shown as follows.(1) The frequency and intensity of gale disasters in Aksu,Kashgar and Bayinholin were bigger than those of other places in southern Xinjiang,therefore,they were the main places for disaster prevention and post-disaster relief.The frequency and intensity of gale disasters in Hotan and Kizilsu were smaller than those in other places,and the secondary main places for disaster prevention and post-disaster relief.In April and May,the frequency of gale disasters was much bigger and the duration of disasters was long,furthermore,April and May were the crop planting and seedling period in this area,and the gale disasters occur more frequently,therefore,April and May were the main periods for disaster prevention and post-disaster relief.(2) The frequency of gale disasters gradually increased from the 1950s to the 1990s,and has decreased since the beginning of the 21st century.The number of gale disasters in Bayinholin is the biggest(84),followed by Kaxgar(75) and Aksu(67),in recent 60 years.The frequency of gale disasters in Hotan and Kizilsu was smaller than that of other places.(3) The economic losses due to gale disasters were positively related with the total output in industrial and agricultural production,and economic losses had a greater impact than the economic growth.It is suggested that the investment for disaster prevention should be increased,the eco-environment of the area should be improved,and the disaster relief systems should be established for strengthening the disaster prevention and control.
Mansur Sabit, Nasima Nasirdin, Lotpulla Imin
. The spatio-temporal changes and intensity of gale disasters in Southern Xinjiang in recent 60 years[J]. GEOGRAPHICAL RESEARCH, 2012
, 31(5)
: 803
-810
.
DOI: 10.11821/yj2012050004