Spatial Heterogeneity In Phenological Development Of Prunus Padus L. In The Yekaterinburg City

The possible impact of the climate changes on vegetation is a key topic of various research studies in geography and ecology. In this study we tried to provide a «one-time survey»  of the phenological development  of Prunus padus L.  in the Yekaterinburg city as a part of the large-scale project “A Single Phenological Day ” and show the data on a map. The registration of a seasonal development  of bird cherry was provided annually in the years of 2012-2018 on one and the same date in the city of Yekaterinburg,  on 15 May. Yekaterinburg is the largest city located on the eastern foothills of the Middle Urals, Russia. The city has residential  areas,  parks,  water reservoirs,  as well as large industrial facilities that affect microclimatic conditions, resulting in an increase of the temperatures. Such microclimatic heterogeneity results in uneven development of bird cherry in spring. It was revealed the slowing of the bird cherry development  in the areas situated close to large water reservoirs. At the same time bird cherry trees growing  inside large industrial areas, on the contrary, developed much faster. The development  rates of Prunus padus L. also differed though  years: in years with dry and warm weather during the period of late April - early May the vegetation began earlier.