福建沿海地区干燥度和风蚀气候侵蚀力的计算与分析

采用彭曼（Ｐｅｎｍａｎ．Ｈ Ｌ．）蒸发力计算公式和联合国粮农组织（ＦＡＯ）提出的风蚀气候因子指数计算公式，利用福建沿海地区２２个气象台站的长年气候资料，计算了福建沿海地区的气候干燥度和风蚀气候侵蚀力，并对影响气候干燥度和风蚀气候侵蚀力的有关因子进行了分析和探讨。文中指出，福建沿海地区属半湿润区域，由于干旱和大风频繁，风蚀气候侵蚀力较大，易发生风沙危害和农田风蚀现象，针对这一情况提出了防治措施。

Calculation and Analysis of the Aridity and the Wind Erosionclimatic Erosivity in the Coastal Area of Fujian

Based on the formular of Penman's evaposative power and the wind erosionclimatic factor index proposed by UNFAO,and the long range climatic data of 22 meteorological observatories in the coastal area of Fujian,Authors calculated and analysed the climatic aridity and the wind erosionclimatic erosivity in the coast of Fujian,discussed the related factors of affecting the climatic aridity and the wind erosionclimatic erosivity,and pointed out that the coast of Fujian has considerable wind erosionclimatic erosity because it belongs to the semi humid region with frequently drought and wind in the seasons of Fall and Winter.So,the wind sand damage and wind erosion of the farmland easily occurred.In view of this situation,Authors also proposed the measures of prevention and contral.