TAILIEUCHUNG - Báo cáo lâm nghiệp: "The effect of liming on the mineral nutrition of the mountain Norway spruce (Picea abies L.) forest"

Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí lâm nghiệp đề tài: The effect of liming on the mineral nutrition of the mountain Norway spruce (Picea abies L.) forest. | JOURNAL OF FOREST SCIENCE 55 2009 1 1-8 The effect of liming on the mineral nutrition of the mountain Norway spruce Picea abies L. forest J. Kulhavý I. Marková I. Drápelová S. Truparová Faculty of Forestry and Wood Technology Mendel University of Agriculture and Forestry in Brno Brno Czech Republic ABSTRACT Mineral nutrition represents the uptake transport metabolism and utilization of nutrients by the forest stand. These processes influence all physiological functions of trees. A specific minimum amount of all nutrients is necessary for the healthy development and growth of forest trees. The uptake of nutrients is influenced not only by natural conditions but also by anthropogenic activities. During the period of 2000-2005 the mineral nutrition of mountain Norway spruce stands was studied at the study site Bílý Krlz Moravian-Silesian Beskids Mts. Czech Republic . Research was carried out in a spruce stand that was limed in the past years in 1983 1985 and 1987 and in a spruce stand that was not limed in order to compare the liming effect on the mineral nutrition of spruce stands. A positive liming effect was detected in the calcium magnesium and phosphorus nutrition because their contents in current needles were higher on the limed plots. No liming effect was determined in the nitrogen potassium and microelement Fe Mn Cu Zn Al content in current needles. Sufficient nutrition of spruce stands only with calcium was recorded on all studied plots. Keywords macroelements and microelements content in needles Norway spruce liming Moravian-Silesian Beskids Mts. Czech Republic Forests cover 33 of the Czech Republic s area and they have very important functions natural habitat for native plants and animals landscape feature source of timber influence on local climate etc. . But the fulfilment of these functions is limited by the poor condition of Czech forests. Despite the air pollution reduction during the 1990s air pollution is still one of the causes of this condition. .

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