甘南草地雪灾及其预报  

GRASSLAND SNOW DISASTERS IN GANNAN PREFECTURE AND ITS FORCAST

作　　者：王中隆[1] 刘积林 马华民 徐志清 

机构地区：[1]中国科学院兰州冰川冻土研究所,甘肃省甘南藏族自治州气象局,甘肃省甘南藏族自治州畜牧局,甘肃省草原总站

出　　处：《山地研究》1996年第4期265-271,共7页

基　　金：甘肃省科学技术委员会软科学研究资助

摘　　要：甘南州冬春两季雪灾频繁，危害牧业．论述了雪灾成因和分布规津，分析了降雪天气的大气环流．雪灾造成的牲畜死损７０％是发生在３—４月．据３—４月环流特征．进行了不同强度降雪环流分型，并建立了甘南区域和局地的短中长期预报方程．雪灾预报较准确．Gannan Prefecture is a subregion of snow cover area in the high Asia. Frequent occurrencesof snow disasters in winter and SPring have caused damage to the livestock breeding. The formative factors,danser degrees and distributive regularity of snow disasters are discussed, as well asthe atmospheric circulation of precipitation snow weather is analysed. According to the circulationcharacteritics from March to April,circulative separations of precipitation snow in different intensity have been presented. In addition, the short-term, medium-term and long-term forcast equations have been proposed. The results show the information for forcasting snow disasters will bemore truthful.

关 键 词：草地 雪灾 降水预防 甘南州 

分 类 号：S427[农业科学—植物保护] S812.1