Аграрный вестник Урала № 06 (124) 2014Лесное хозяйство
THE MAXIMUM VALUE OF INVENTORY INDICES AND SANITARY CONDITION OF TREES IN EKATERINBURG
Identifying of the maximum age in the largest trees of coniferous and deciduous species at various greenery objects, evalu- ation of their biometric parameters (diameter, height, age) and sanitary condition are essential for successful greenery in the conditions of Ekaterinburg. The following tree species were found to predominate in the green space of the city: common pine, Siberian larch, Siberian spruce and Blue (Colorado) spruce, Siberian stone pine, Balsam poplar, Little leaf linden, Silver birch. It was found that the most favorable conditions for the growth of all species of trees were connected to the special-purpose objects and forest parks. Many tree species have reached a significant age in the green space of Ekaterinburg. The centenarians of common pine are about 300 years old, Siberian larch — more than 200, Siberian spruce and Blue (Colorado) spruce — about 70, Siberian stone pine — about 60, Little leaf linden — about 125, Silver birch — 110, Common oak — 140, Amur choke- cherry — 60. The maximum heights were identified as follows: for Balsam poplar — 32 m, Siberian larch — 30, Common pine — 29, Silver birch — 27, White poplar — 25 m, Amur chokecherry— 22, Common oak — 20 m. The height reflecting the sensitivity of trees to pollution are characterized by lower values in street plantings than in parks and special purpose objects. Thus, common pine trees in the park is 28 % as lower as in the forest park, Siberian larch in the old cemetery is 30 % as higher as on a city street, and 20 % as higher as in the city park. The trees of Siberian larch, Little leaf linden and White poplar have the highest score of sanitary status. Balsam poplars in the single plantings have the 2nd grade of sanitary status.
urban plantings, greenery, inventory indices, diameter, height, age, sanitary status category, trees-centenarians, introduced plants, stability
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