Study on the characteristic of ecoclimate effect in forest zone of Ziwuling on Loess Plateau

In order to explore the characteristics of ecoclimate effects, the annual variation of meteorological factor was analyzed by using the meteorological data from Taibai Weather Station which located in Ziwuling forest region, Huachi Weather Station and Qingcheng Weather Station which located in the boarder of forest area. The result showed that the temperature and evaporation in Ziwuling forest region in each month were obviously lower, and meanwhile, the precipitation in May, July and September and air humidity from April to September were higher than that in the surrounding area. The rain days in forest region were more than that in the surrounding area. It means that the climate in Ziwuling forest region was cold and humid.