Nutritional Characterization Of Young Trees In A Protective Forest As Influenced By Plant Species, Site And Mycorrhization

This work studies the plant nutrition of various species planted on the wind throw area Lattengebirge. Especially the influence of mycorrhization, soil condition and way of planting on their nutritional conditions is investigated.The whole work is divided to three parts:the first part is to study the information of mycorrhizal associations on the root of different plant species. For investigating the influence from the mycorrhizal associations to the nutritional status of these plants, the nutritional elements in the leaves of these plants were also measured. The second part is to test the nutritional status of planted trees in the study area after one-year growth by comparing the average content of the nutritional elements in their leaves with the previous research. The last part of the thesis is to investigate the influence from the different soil type (pH value and the nutritional elements in the soil) to the nutritional status of the study plants. Finally, we combined the three parts together and have the conclusion. The statistical analysis of the data from each part is based on the SPSS software.The conclusion is that both the mycorrhizal associations and soil type have impact on the plant nutrition. However, the positive effect from the mycorrhizal associations to the nutritional status of the plant seems more eager to happen on the climax trees such as spruce, larch, fir and beech, while the growth tendency of the fast-growing and relatively short-living pioneer tree as rowanberry seems rely more on the soil types they located in.