| The characteristics of gale disaster and its impact on agricultural production in Southern Xinjiang in last 60 years |
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| DOI：10.7606/j.issn.1000-7601.2012.01.44 |
| Key Words: gale disaster intensity agricultural production Southern Xinjiang |
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| Abstract: |
| The characteristics of gale disaster and its impact on agricultural production in Southern Xinjiang in 1949—2008 were analyzed using data such as the frequency of gale disaster, the accumulative duration of ga
le disaster, the death toll, the total area of disaster affected farmland, the economic loss and the total amount of death beast which were caused by the gale disaster. The results of the study showed that: (1) The frequency of gale disaster increased from 1950—1990 in Southern Xinjiang, The gale disaster happened 11 times in 1950s and 115 in 1990s, and decreased from the beginning of the 21st century; The frequency and intensity of gale disaster in Aksu, Kashgar and Bayinholin were more than other places in Southern Xinjiang, therefore, they were the main places for disaster prevention and post disaster relieving. The frequency and intensity of gale disaster in Hotan and Kizilsu were less than other places, and they were the secondary main places for disaster prevention and post disast
er relieving. (2) Strong, moderate and slight gale disasters existed in Southern Xinjiang. Bayinholin was the strong disaster area while Aksu, Kashgar, Hotan was moderate disaster area and Kizilsu was slight disaster area. (3) In April and May, the frequency of gale disaster was more and the accumulative duration of disaster was long, furthermore, April and May was the crop planting and seedling period in this area, and the gale disaster occured more easily, therefore, April and May were the main periods for disaster prevention and post-disaster relievi
ng. (4) The total area of the gale impacted farmland was increased with the increase of cropland area, and the speed of the increase of the total area of the gale impacted farmland was faster than the increase of the total area of cropland area. It is suggested that the investment for disaster prevention should be increased, the ecological environment of the area should be improved, and the disaster relief systems should be established for strengthening the disaster prevention and control. |
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