影响我国甘蔗主产区甘蔗产量的关键气象因子及其丰欠指标

目的]为指导我国甘蔗生产奠定理论基础。方法]对1971~2005年广西、广东、海南、云南等我国甘蔗主产区原料蔗产量与气温、雨量、湿度、日照等气象因子进行相关性分析,确定了影响我国甘蔗主产区甘蔗产量的气象因子和关键时段。结果]各气象因子与我国甘蔗主产区原料蔗产量的相关性有较大的差异,部分丰欠气象指标跟甘蔗生理气象指标并不完全吻合。降水量是我国甘蔗主产区的共同关键气象因子。广东和海南甘蔗主产区热量条件好,广西甘蔗主产区雨热条件配合比较好,云南甘蔗主产区温光水条件配合比较差。结论]该研究划分了我国甘蔗主产区甘蔗产量的丰欠气象指标。

The Key Meteorological Factors Affecting the Sugarcane Yield in Major Production Areas in China and Their High-low Yield Indices

Objective] The study aimed to lay the theoretical foundation for guiding the Sugarcane production in China.Method] The correlation analysis was made between the sugarcane yield and the meteorological factors such as temperature,rainfall,humidity,sunshine hours in major production area such as Guangxi,Guangdong,Hainan,Yunnan in 1971～2005 and the meteorological factors and its key period affecting the sugarcane yield in major production areas in China were confirmed.Result] The correlation of each meteorological factor had greater difference from the sugarcane yield in major production areas in China and some meteorological indices for high-low yield were not fully consistent with that for sugarcane physiology.The rainfall was the common key meteorological factor in major production areas in China.The major production areas of Guangdong and Hainan were good in heat quantity,the major production areas of Guangxi was better in combination of heat and rain and the major production areas of Yunnan was worst in combination of temperature,sunshine and water.Conclusion] This study carved up the meteorological indices for high-low sugarcane yield in major production areas in China.