Soil-ecological conditions of Korean pine growth in its natural area and upon introduction in the European part of Russia
Tóm tắt
Socioeconomic expediency and soil-ecological potential of introducing Korean pine (Pinus koraiensis) in the forest zone of the European part of Russia are discussed. The specificity of soil-ecological conditions and technologies applied for growing Korean pine in some tree farms in the Far East region and in the European part of Russia are compared. The main soil-ecological factors and optimum soil parameters for the successful development of Korean pine in its natural and introduction areas are determined. It is shown that development of Korean pine seedlings on well-drained soils depends on the contents of potassium, humus, and physical clay in the soils. The seedlings gain maximum size upon their growing on soddypodzolic soils (Retisols). The analysis of mineral nutrition of pine seedlings of different ages, soil conditions, and seasonal growth phases shows that the contents of potassium and some microelements play the leading role in the successful growth of introduced Korean pine.
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