抚顺暴雪天气特征及其农业影响  

Characteristics of the Severe Snow Weather and the Impacts on Agriculture in Fushun

作　　者：吴春英 刘洪新 李金义[1,2] 徐全辉 

机构地区：[1]辽宁省抚顺市气象局,辽宁抚顺113006 [2]南京信息工程大学,江苏南京210044 [3]辽宁省沈阳市苏家屯区气象局,辽宁沈阳110101

出　　处：《安徽农业科学》2009年第34期16935-16937,共3页Journal of Anhui Agricultural Sciences

摘　　要：统计抚顺1976～2008年33年暴雪天气,分析了暴雪气候规律、暴雪出现环流形势特征,总结暴雪对农业影响。结果表明,抚顺地区33年暴雪总趋势增加,年平均暴雪日数为1d,出现暴雪最多年份为1976和2000年,年暴雪日为4日。暴雪月分布特点是出现在每年1～4月和11～12月份。11月份出现次数最多,2月份出现次数最少。地理分布特点新宾站最多,清原站最少。暴雪环流特征500hPa为两槽一脊型、一槽一脊型和冷涡型。过程前一天850hPa抚顺地区位于暖温度脊控制,地面影响系统为黄河倒槽。暴雪天气对农业及各行各业带来严重影响。对农业的影响主要有设施农业、水库蓄水、土壤墒情、水果、蔬菜、森林防火、作物病虫害、家禽饲养。Based on severe snow weather data in Fushun region statistics from 1976 to 2008（ 33 years） ,the law of severe snow climate and circulation pattern characteristics were analyzed, and then the impacts on agriculture were summarized. It showed that the general trend of severe snow in Fushun region had been increased for 33 years. The annual average number of days of severe snow was ld. The most severe snow year appeared in 1976 and 2000 ,with four days. The monthly distribution specificities of severe snow were that it appeared in the month of January to April and November to December. The most frequency appeared in November and least in February. The specialty of the geographical distribution was its most appearance frequency in Xinbin station and least in Qingyuan station. The 500 hPa circulation features of severe snow were two slots of a ridge,a trough of a ridge and cold vortex type. Fushun region in 850 hPa was controlled by a warro-thermal ridge in the clay before the course. The ground system was inverted trough of the Yellow River. Agriculture and all walks of life were seriously affected by severe snow. The impacts on agriculture were mainly establishment farming, reservoir impound, soil moisture, fruits, vegetables, forest fireproofing, crop pests and diseases, poultry breeding.

关 键 词：暴雪 环流形势特征 农业影响 

分 类 号：S161.6[农业科学—农业气象学]