Abstract
The forest soils (burozems, sod podzolic soils, gray and gray metamorphic soils) and plant communities, altogether performing important environmental protection functions, were investigated in the vicinity of Irkutsk city in Russia (N52º17'24.03'', E 104º16’50.62"). The preservation of natural forest sites in the residential areas, as well as enhancing of the “green” infrastructure of the city by creating artificial forest stands with sustainable coenotic composition will significantly decrease contamination and pollution. The study assessed the potential of environmental susceptibility of soils in different districts of Irkutsk and its vicinity. The natural soil sustainability potential of the region results from the diversity of parent bedrock material, relief of the terrain, loamy and clay granulometry, derived from the Pleistocene loess-like loams and the Miocene clays, relatively high humus content of predominantly humate-fulvate composition, dense vegetation cover of pronounced biodiversity of trees (pine, aspen and birch), etc. Gray and gray metamorphic soils can be characterized as being environmentally the most sustainable. Taiga biocenoses were shown to contribute significantly to the improvement of the sanitary-hygienic and environmental status of the studied areas. The result underscores an urgent need to take into account soil and soil cover sustainability potential while creating a green environmental protection framework in the city and its vicinity. Sufficient fertility and environmental sustainability of soils in the studied area serve as a stable basis for the preservation of relic park forests and for the development of cultural and recreational landscapes in the region.
Highlights
Весьма напряженная экологическая ситуация в городе Иркутске требует радикальных мер по ее улучшению
The result underscores an urgent need to take into account soil and soil cover sustainability potential while creating a green environmental protection framework in the city and its vicinity
Sufficient fertility and environmental sustainability of soils in the studied area serve as a stable basis for the preservation of relic park forests and for the development of cultural and recreational landscapes in the region
Summary
В перечень лесных массивов, подлежащих учету при разработке всех видов градостроительной документации г. Курорта «Ангара», микрорайона «Юбилейный», реликтовые рощи «Кайской горы», микрорайона «НовоМельниково» и «Синюшиной горы», водоохранной зоны Ершовского водозабора и др. Иркутске является проект развития «Кайской горы» и превращения массива Кайской реликтовой рощи в туристическое «ядро» города на основе сохранения древнего соснового леса. Объектами исследования послужили почвы лесных массивов различных районов г. Точки опробования были заложены на разных элементах рельефа и в различных биоценозах (рис.[1]). Ориентированные на изучение экологической устойчивости и общих физико-химических свойств почв, проводились с применением почвенноморфологического педо-литологического, ботанического, геолого-геоморфологического и сравнительно-географического методов исследования. На территории исследования было заложено и описано свыше 30 почвенных разрезов. Основные физико-химические свойств почв были определены в 20 почвенных разрезах с помощью общепринятых методов потенциометрии, титрования, фотоколориметрии, гранулометрии и др. Основные физико-химические свойств почв были определены в 20 почвенных разрезах с помощью общепринятых методов потенциометрии, титрования, фотоколориметрии, гранулометрии и др. (Теория и практика..., 2006) в пробах воздушно-сухих образцов почв
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