【作者】 蔡文华； 陈惠； 李文； 张辉；

【Author】 CAI wen-hua1 CHEN hui1 LI wen1 ZHANG hui2 (1.Meteorological institute in Fujian , Fuzhou, 350001; 2.Researchinstitute of soil and fertilizer ,Academy of Agricultural sciences in Fujian, Fuzhou, 350013 )

【机构】 福建省气象科学研究所； 福建省农科院土壤肥料所；

【摘要】 通过浦东农场两个山坡地晴天的低温考察得出,相对高差小于50m的山坡,最大的逆温出现在坡顶;相对高差为80m的山坡,最大的逆温出现的坡位约为相对高度差的0.88处。从坡底到最大逆温效应出现的坡位,最低气温随着高度的升高而升高。2004/2005冬季的低温,浦东农场海拔44m以下的橄榄树全部受冻,海拔越低,冻害越严重;68-85m的橄榄树基本上都不受冻,这是坡地逆温影响所致。据14个考察点附近的橄榄树冻害调查资料和相对应的低温资料,经初步分析得出:当最低气温低于-2.0℃时,橄榄树叶片受冻;当最低气温低于-2.7℃时,橄榄树末一枝条受冻;当最低气温低于-3.0℃时,橄榄树末二枝条受冻。更多还原

【Abstract】 Based on the exploration of low air temperature to two farm in Lianjian, we drive that when the relative height of hillside is below 50m,the biggest inversion occur in the top of the hillside; When the relative height of hillside is 80m,the biggest inversion occur in about 70m.From the bottom to the hillside where the biggest inversion occur in, he lowest air temperature increase with the height. In the course of low air temperature in the winter of 2004/2005, pudong farm of Lianjian, alives that planted below 44m of height above sea level all suffer freeze harmful. Alives that planted between 68m to 85m of height above sea level nearly do not suffer freeze harmful.This is the hillside effect of inversion. Based on the data analysis about alive freeze harmful and the low temperature near 14 exploration sites, we derive the index of alive freeze harmful :when the lowest air temperature is below –2.0℃ ,the leaves of alive are freeze harmful; When the lowest air temperature is below –2.7℃,the first top sticks of alive are freeze harmful; When the lowest air temperature is below –3.0℃ ,the second top sticks of alive are freeze harmful.更多还原