冬春温度和降水对龙眼丰欠年型的影响

Influence of Temperature and Precipitation in Spring and Winter on the Abundant or Lean Year for Longan

贵港市冬春季温度和降水对龙眼产量丰欠年的影响结果分析表明 ,丰产年型具有 1月各旬平均气温偏低 ,1月下旬至 2月上旬降水偏少以及 3月中旬至 4月上旬平均气温偏高、雨日偏少 ,4月上中旬雨量偏少等主要特点。对影响丰欠年的冬春季综合气候指标分析预测 ,可为及时采取相应的果园生产管理技术措施趋利避害提供依据。

The study on the influence of temperature and precipitation in spring and winter in Guigang on the abundant or lean year of Longan indicates that the abundant year of Longan has the features of lower average temperature in the three peroids of January, less precipitation from the last period of Jan. to the early period of Feb., higher average temperature from the middle period of March to the early period of April, and less rainy days and less precipitation in the early and middle periods of April. The analysis and prediction of the comprehensive climate targets in sping and winter which influences the abundant or lean year provide scientific basis for taking corresponding production management and technical measures to make use of advantageous climate conditions and avoid harmful climate conditions in orchard.