福建省干旱的时空分布及其对农业生产的影响

Spatiotemporal distribution characteristic of drought in recent 44 years in Fujian Province and its impact on agricultural production

通过对福建省66个县近44年的干旱资料分析,阐述了该省春旱、夏旱和秋冬旱的时空分布特点及其对农业生产的影响。结果表明,福建干旱以夏旱为主,秋冬旱次之;各类干旱以小旱为主,中旱次之,大、特旱则仅占四分之一。春旱在中南部沿海地区高发;夏季小、中旱以中南部沿海地区多发,大、特旱以厦门、莆田、福州地区多发;秋冬旱是南部多于北部地区。对农业生产影响较大的是春旱和夏旱,尤以夏季的大、特旱威胁最大。

According to the drought data for recent 44 years from 66 weather stations in Fujian Province,the spatio- temporal distribution characteristic and the impacts on agriculture of the drought in spring,summer,autumn and winter were analyzed.The results suggest that(1)Drought in Fujian mainly occurred in summer season,and sel- dom in autumn and winter;The majority of drought in Fujian is light drought,moderate drought takes the second place,while serious droughts and critical droughts only take a quarter respec...