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Nitrogen Nutrition of Plants in an Alpine Lichen Heath under the Conditions of Soil Enrichment with Biogenic Elements
Russian Journal of Ecology ( IF 1.1 ) Pub Date : 2020-03-01 , DOI: 10.1134/s1067413620020083
M. I. Makarov , N. G. Lavrenov , V. G. Onipchenko , A. V. Tiunov , T. I. Malysheva , R. V. Sabirova

Abstract The results of a long-term experiment on the enrichment of the soil (Umbric Leptosol) of an alpine lichen heath with biogenic elements have shown that calcium addition and reduction of soil acidity do not change the nitrogen regime of the soil and patterns of nitrogen nutrition of plants. The increase in phosphorus availability contributes to the mobilization of soil organic nitrogen and shifts in the role of mycorrhiza in the nitrogen nutrition of plants, which determines their heavier isotopic nitrogen composition. At the same time, this reduces the intensity of nitrogen fixation by a nitrogen-fixing legume species, Oxytropis kubanensis . The increase in the availability of nitrogen leads to its active uptake by all studied plant species except Oxytropis kubanensis , as well as to the heavier isotopic nitrogen composition of plants. However, changes in the nitrogen status differ between plant species.

中文翻译:

生物元素富集条件下高山地衣荒地植物的氮营养

摘要 用生物元素富集高山地衣荒地土壤 (Umbric Leptosol) 的长期试验结果表明,钙的添加和土壤酸度的降低不会改变土壤的氮状态和氮模式。植物的营养。磷可用性的增加有助于土壤有机氮的动员和菌根在植物氮营养中的作用发生变化,这决定了它们更重的同位素氮组成。同时,这降低了固氮豆科植物 Oxytropis kubanensis 的固氮强度。氮可用性的增加导致其被除 Oxytropis kubanensis 之外的所有研究植物物种积极吸收,以及植物的同位素氮组成更重。
更新日期:2020-03-01
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