The Climite Change In Tianshui And Its Impact On Fruit Growing

Under the major background of global warming. The regional climate in Tianshui is just changing obviously. In recent years, the temperature ascension, the precipitation reduced, arid serious, Has had the very tremendous influence for the local agriculture environment. Therefore, understands the Tianshui area climatic change rule, To enhances the short-term climate to forecast the level and instruction local characteristic Lin Guoye produces has the important reference significance.This paper based on the climate dataum from 1961-2005 of 3 representative meteorological stations and the data of fruit growing, the feature have been analyzed about the variation of temperature,precipitation,drought index and to the influence of fruit growing in last 45 years. The Study indicates that since I960's,the temperature has increased, especially in winter, accumulated temperature(> 10℃)and the days of heat have been increased since 1990's, The temperature was the highest and the precipitation was the lest in 1990's, the dry index dropped, spring drought, early summer drought and hot drought appeared more. The influence has been brought to fruit growing period, yield, quality, planting distribution because of climate changing.With cold, there snow, frost, fruit development period ahead of time, cold and significantly reduced capacity, frost damage is more serious.Frost damage to fruit trees flower browning, cracking or freezing to death the young fruit, fruit quality and yield severely affected. According to local light, heat, water, climate change and the comprehensive index of ecological fruit tree, fruit tree planting rationalize the layout of the original, to take appropriate land to build parks, improve cultivation techniques and other measures are an effective way to address climate change.