1960-2008年濮阳气候变化特征及其对农业生产的影响

利用数理统计方法，对濮阳1960-2008年的气候资料和近年的民政局的灾情资料进行分析，并进行对比分析后找出主要农业气候学因子温度、降水和日照的变化规律和特征是年平均气温逐渐升高，尤其是冬季气温异常偏高，降水量有所减少，日照呈现明显减少趋势，最后论证了气候变化对濮阳市农业生产的影响。

Climatic Change and Influence on Agricultural Production in Puyang from 1960 to 2008

To study the features of major climatic factors in Puyang nearly half a century on the monthly average, seasonal average, the annual average and deeadal time, including temperature, precipitation and sunshine. And its impact on major crops breeding, growth and development of growing season and crops diseases and insect pests. Based on the daily climatic data from 1960 to 2008 and the disaster data of the civil administration in recent years in Puyang, the variations and the features of the major climate factors were obtained by statistical methods, including temperature, precipitation and sunshine. The results showed that the average annual temperature gradually increased exceptionally high temperature especially in winter. Climatic trend rate was 0.2033 ℃/a. The average annual precipitation reduced very little, climate trend rate was -1.087 mm/a, The sunshine shown clear decreasing trend, climate trend rate was 15.101 h/a. Finally we concluded that the effective temperature had double-sided impact on agricultural production. On the one hand, the climate change was favorable for raising the effective temperature of the effective crops growing period. The concentration of CO2 in atmosphere could increase wheat crops production. On the other, disadvantages were also prominent. During to temperature rising, the influence on scope and speed of crops diseases and insect pests would be significantly accelerated.