Abstract:

Abstract: To study the features of major climatic factors in Puyang nearly half a century on the monthly average, seasonal average, the annual average and decadal 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.