关键词: 低温冷害, 低温冷害, 樱桃番茄, 防御, 病虫害防治

Abstract:

The global warming for climate change has been recognized in the world. The climate change will affect the change of agricultural climate resource of agricultural production, thereby affecting crop varieties, layout, the grain yield, etc. The temporal and spatial tendency, differences of agricultural climate resources in Tangshan area was analyzed by using linear-trend estimate, based on the daily air temperature and precipitation from 1961 to 2008 form 11 meteorological stations. Analysis on agricultural climate resource for government departments to guide agricultural production, the development of facilities agriculture and agricultural development, introduction, the famous agricultural climate resource utilization argument provides basis for decision-making.The results indicated that the heat increased greatly, and it was greatly in southwest place than northeast place. The inter-annual change between the annual accumulated temperature ≥0 ℃, the annual accumulated temperature ≥10 ℃ and the air temperature existed a corresponding relationship. The annual precipitation decreased, and the fluctuation of precipitation inter-annual was intensified.