影响广西糖料蔗产量的气候因子及其变化特征分析

Variation characteristics of climatic factors influencing sugarcane yield in Guangxi

在统计分析广西糖料蔗主产区的糖料蔗单产、含糖分及降雨量耦合关系的基础上,按照糖料蔗种植分区选择典型县,对广西主产区糖料蔗生长季的气候因子(降雨、气温、日照等)与糖料蔗产量及含糖分之间的关系进行分析,结果表明:降雨量、气温和日照每增加1个单位,糖料蔗单产和含糖分分别提高0.01 791 t/hm2、0.00 026%,0.00 442 t/hm2、0.00 040%和0.00 240 t/hm2、0.00 109%。

Statistics was conducted on the relationship between yield and sucrose content of sugarcane and rainfall for the major sugarcane planting areas in Guangxi, based on which the typical planting counties were selected and for them the authors analyze the relationship between yield and sucrose content of sugarcane and the climatic fac- tors. The results of analysis demonstrate that corresponding to each additional one unit of rainfall, air temperature and sunshine, the yield and sucrose content of sugarcane increase by 0.01791 t/hm2 and 0.00026%, 0.00442 t/hm2 and 0.00040%, 0.00240 t/hm2 and 0.00109% respectively.