摘要
满城５年（１９８６—１９９０）防雹试验期间，年平均雹灾面积为６３３．３３公顷，比防雹前１０年平均减少２１９３．３３公顷，防雹效果达７７．６％。采用两种不同的方法分析满城防雹试验结果表明，满城５年防雹试验是有成效的，经济上投入产出比为１：１７．６或１：２３。
ail suppression operations were carried out in Mancheng county from 1986-1990. Hail damage area was 2193 ha (10 year average) befroe the operations. In the period of hail suppression the damage area was decreased to 633.3 ha, much less than before. The effects of hail suppression was estimated by two ways. The results suggested that the effect of 5 year hail suppression is 77.6%,the operation is beneficial and the ratio of investment to benefit is 1:17.6 or 1:23.
出处
《气象》
CSCD
北大核心
1995年第9期25-29,共5页
Meteorological Monthly
关键词
防雹效果
评估
冰雹
hail suppression effect evaluation
