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首页> 外文期刊>International Journal of Environmental Science and Technology >Assessing forest health via linking the geochemical properties of a soil profile with the biochemical parameters of vegetation
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Assessing forest health via linking the geochemical properties of a soil profile with the biochemical parameters of vegetation

机译：通过将土壤剖面的地球化学性质与植被的生化参数联系起来评估森林健康

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The transfer of chemical elements/compounds within the soil-plant chain is a part of the biochemical cycling, and this system is controlled by biotic and abiotic factors which determine the final mobility and availability of chemical variables. Heavy metal contamination and low pH are stress factors that lead to changes in the contents of important foliage compounds, which can be used as non-specific indicators of plant stress. In this study, Norway spruce forests in the Sokolov region, being a part of the "Black Triangle," were selected to assess geochemical and biochemical interactions in the natural soil/plant system. The authors studied the relationship between soil and spruce needle contents of macronutrients and potentially toxic elements and tested whether the soil parameters and their vertical distribution within a soil profile (two organic and two mineral horizons) affect foliage biochemical parameters (contents of photosynthetic pigments, phenolic compounds and lignin). Factor analysis was used to identify underlying variables that explained the pattern of correlations within and between the biochemical and geochemical datasets. Aluminum (Al) and arsenic (As) were identified as toxic elements with high bio-availability for spruce trees, and both were taken up by trees and translocated to the foliage. The correlations between two toxic element contents in needles (Al and As) and the contents of soluble phenolic compounds and total carotenoid to chlorophyll ratio suggest that these latter two biochemical parameters, which both proved to be sensitive to the soil geochemical conditions, can serve as suitable non-specific stress markers.
机译：土壤-植物链中化学元素/化合物的转移是生物化学循环的一部分，该系统由生物和非生物因素控制，这些因素决定了化学变量的最终迁移率和可用性。重金属污染和低pH是导致重要叶子化合物含量变化的胁迫因素，可用作植物胁迫的非特异性指标。在这项研究中，选择了作为“黑三角”一部分的索科洛夫地区的挪威云杉林来评估天然土壤/植物系统中的地球化学和生物化学相互作用。作者研究了土壤和云杉针叶中大量营养元素与潜在毒性元素之间的关系，并测试了土壤参数及其在土壤剖面（两个有机层和两个矿物层）中的垂直分布是否影响树叶生化参数（光合色素，酚类物质的含量）。化合物和木质素）。因子分析被用来识别基本的变量，这些变量解释了生化和地球化学数据集内和之间的相关模式。铝（Al）和砷（As）被确定为云杉树木具有高生物利用度的有毒元素，并且两者都被树木吸收并转移到叶子上。针叶中两种有毒元素的含量（Al和As）与可溶性酚类化合物的含量以及类胡萝卜素与叶绿素的总含量之间的相关性表明，后两个生化参数均被证明对土壤地球化学条件敏感，可以用作合适的非特异性应激标志物。

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