摘要
[目的]研究康平县热量资源变化趋势,为农业可持续发展提供气候依据。[方法]应用最小二乘法进行线性拟合及Excel程序,分析热量资源趋势变化及差异。[结果]在近50年里,平均气温升高1.6℃,∑T≥0℃积温增加了315℃,∑T≥10℃积温增加了280℃。50年经历3个温度"拐点",从1989年后温度上升趋势明显。冬半年气温升高幅度较大,夏半年气温升高较缓。[结论]热量条件的改变,农业结构需要重新整合,"陈旧的农业气象指标"需要重新确认研究,才能适应农业的可持续发展。
[ Objective] To study the trend of Kangping County Change heat resources for sustainable agricultural development based on the provision of climate. [Method] The linear least squares fitting and Escel procedures, changes of heat resource trends and differences were analyzed. [ Result ] The average temperature raised 1. 6 ℃, ΣT ≥ 0 ℃ accumulated temperature increased 315 ℃, ΣT ≥ 10 ℃ accumulated temperature increased 280℃ in recent 50 years. Through the three ＂inflection point＂, temperature upward trend became significant from 1989. Temperature range was larger when in winter, more moderate in summer. [ Conclusion] The changes in heat conditions, required the new integration of the agricultural structure,＂the old agrometeorological indicators＂confirmed needing new research to adapt to the sustainable development of agriculture.
出处
《安徽农业科学》
CAS
北大核心
2009年第20期9540-9542,共3页
Journal of Anhui Agricultural Sciences
关键词
热量
趋势
可持续发展
康平县
Heat
Trends
Sustainable development
Kangping County
