2002年荔枝大丰收的气象成因分析

通过对2001／2002年度玉林市荔枝生育期的农业气象条件进行诊断分析，得出2002年获得大丰收的主要原因是关键发育期气侯条件好：秋梢抽生期雨水正常；冬季在寒冷和干旱的双重作用下花芽发育比较完全；春季气侯温暖雨量适中雨日偏少有利于荔枝的孕蕾和开花授粉；幼果期和膨大期气象条件也很正常。气侯条件比历史上最高产的1999年更优。

Analysis of the cause of Meteorological Formation of the Bumper Harvest of Lychee in 2002

Through the diagnosis and analysis of the agrometeorological condition during lychee growth cycle in Yulin from the year 2001 to 2002, we've come to the conclusion that the main cause of a bumper year in 2002 owes to the following facts :at the budding stage of treetops in autumn, there was normal rainfall and the treetops budded in time and vigorously; under both the effects of cold and drought, the flower buds were comparatively full grown; warm climate, moderate rainfall and fewer rain days in spring was a great benefit to flower bud bearing, blossoming and pollination of lychee; the meteorological condition at young fruit stage and at fruit expanding stage was quite normal, too. Even compared with 1999, the year with the highest yield in history, the year 2002 still presented some superiority at several key development stages and became the best climatic year in these years.