朝阳县气象灾害发生规律与防御措施探讨

根据朝阳地区1954～2008年的气象资料,分析了当地气象灾害发生规律。其中干旱在全年内均可发生,以春季频率最高;冰雹主要发生在5～9月,6～8月占全年的70%;雷电5～9月占全年的96%,6～7月占全年的52%;霜冻在春秋两季发生,春季受灾有37.5%的年份,秋季受灾有15%的年份。指出干旱、冰雹、雷电和霜冻是朝阳县主要威胁农业经济发展的气象灾害,并提出了相应的科学的防御措施。

The Frequency of Meteorological Disasters and Its Defense in Chaoyang County

Aceording to the meteorlogical materials of Chaouang county in 1954 - 2008, the author analysised and evaluated the frequencey of meteorological disasters. The drought may occur throughout the year, the highest frequency in spring; hail occurred mainly in May and Septemper, Lightning occured in May and September accounted for 96% in a year; frost occurred in the spring and autumn, drought. Hail, lightning and frost are the major threats to agriculture in Chaoyang County. So the scientific defensive measures should be holcl to decline or the lifting of the disaster losses.