地形气候差异在作物安全越冬精细区划中的应用

Application of Topography and Climate Difference on Fine Regional Planning of Crops Safe Wintering

安全越冬是福建亚热带和热带果树生存的关键,极端最低气温是这些多年生果树安全越冬精细区划中不可或缺的主导指标。地形对极端最低气温的分布有明显的影响。为了更准确地进行精细区划,本文综合20世纪70、80年代福建省丘陵山地气候特征和中国亚热带丘陵山区农业气候资源合理利用以及其它相关研究的结果,归纳山区地形气候差异的要点,确定不同坡向以及逆温背景下的分区指标,使得区划结果更加科学、更加符合实际。

Safe wintering was a key for the survival of semi-tropical and tropical fruit trees in Fujian.Therefore,the extreme low temperature came to an indispensable and dominant index in the fine regional planning of crops safe wintering.Effects of topography to extreme low temperature were obvious.In order to make finer regional planning,different characteristics of mountain topography and climate were concluded,division indexes to different aspects and various temperature inversion backgrounds were also identified,based on the research of 'Climate characters of Fujian Upland',the research of'Rational use of agroclimatic resources in semi-tropical upland in China',and other relative researches.