中国橡胶树气候适宜度分布特征研究

选取气温、降水、光照、风速四个气象要素, 应用气候适宜度方法对中国橡胶树的气候适宜性进行定量评价。结果表明: 中国橡胶树的气候适宜度指数均低于0.8, 平均值为0.43, 变化趋势普遍在±0.05 (10a)??之间, 海南岛的大部分地区为橡胶树气候适宜区, 广东, 广西和福建南部以及云南南部的部分地区为较适宜区; 降水适宜度均值为0.43, 趋势值为-0.08-0.09 (10a)??, 是中国橡胶树适宜性的主要限制因素; 温度适宜度平均值为0.59, 趋势值在-0.04-0.25 (10a)??之间, 是造成气候适宜度空间分布差异的主要因素; 光照适宜度平均值为0.70, 变化趋势均在±0.05 (10a)??之间, 分布和变化的空间差异最小; 风速适宜度均值为0.71, 变化趋势范围为-0.34-0.28 (10a), 区域性最强。

Study on the variation characteristics of rubber trees climate suitability inChina

Four meteorological elements(air temperature,precipitation,sunshine duration and wind speed)were selected to quantitatively evaluate the suitability of Chinese rubber trees with the method of climate suitability.The results show that the climate suitability index of rubber trees in China is generally lower than 0.8;average is 0.43 and the trend is generally between±0.05(10a)^-1.Most of Hainan Island is suitable for rubber trees;Guangdong,Guangxi,southern Fujian and parts of southern Yunnan are relatively suitable.The mean value of precipitation suitability is 0.43,which is the main limiting factor for the suitability of Chinese rubber trees,and its trend value ranges from-0.08 to 0.09 per decade.The average of temperature suitability is 0.59,and its trend value ranges from-0.04 to 0.25 per decade,which is the main factor for the spatial distribution differences of climatic suitability.The mean value of sunshine duration suitability is 0.70,and its variation trend is between±0.05 per decade,with the smallest spatial differences in distribution and variation.The average of wind speed suitability is 0.71,its variation trend range is-0.34-0.28(10a)^-1,and its regional character is the most evident.