午夜欧美大片免费观看,欧美激情综合五月色丁香,亚洲日本在线视频观看,午夜精品福利在线

Based on the data from 1982 to 2007 of air temperature and phenophases in Huhhot and Wuchuan, an analysis is made of the variation trends of plants, animals and the related hydrometeorological phenophases in spring and autumn, and their relations to climate warming. The results show: (1) The spring soil thaw was later in Huhhot than in Wuchuan, and other phenophase was earlier in Huhhot than in Wuchuan; but in autumn, the phenophases in Wuchuan were earlier than in Huhhot. The phenophase difference between Huhhot and Wuchuan was: Douyan appearance (disappearance) ＞hydrometeorological factors＞florescence (defoliation); the relationship between florescence (defoliation) dates in Huhhot and Wuchuan was positive significantly, and that of Douyan appearance (disappearance) was negative significantly, while that of hydrometeorological phenophases was not significant. (2) From 1982 to 2007, air temperature increased, the first flowering dates of plants advanced and the defoliating dates postponed, which have a strong relationship with temperature; the first appearance dates of Douyan in Huhhot advanced and the last appearance dates postponed, On the contrary in Wuchuan, there was a certain extent relationship with temperature; hydrometeorological phenophases also advanced in Spring and postponed in Autumn; and the relationship with temperature was not significant.