林带对淋溶黑钙土中铅、镉总含量及其交换物的影响

Elena Tikhonova, Nadezhda Gorbunova, Anastasia Safonova, Ella Treschevskaya, Jiaolong Ye, Hong Yuan, Chanhua Ma
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引用次数: 0

摘要

人工林带的创建是一种有效的土地复垦方法。林带对防止侵蚀过程、形成热和湿度制度、减少地表空气层的湍流交换和减少大气中的二氧化碳份额具有积极影响。人工林的一个重要特征是防止土壤重金属污染。它的发生是由于土壤的剖面再分配和土壤的部分修复。获得的数据证实了这一观点。揭示了在以A.L. Mazlumov命名的全俄甜菜和糖研究所的土地上,浸出黑钙土在不同年龄森林带的影响下与可耕地土壤的可靠转化。森林植被类型由于腐殖质含量的稳定及其在整个土壤剖面上的均匀分布,有助于建立更可持续的生态系统。相关分析表明,腐殖质含量、土壤溶液pH值与HM总含量及HM交换性化合物含量之间存在密切关系。土壤黑钙土上层HM浓度呈上升趋势;它是由农业机械主动排放的废气和矿物肥料的使用造成的。在中国西南部的四川省境内,规划了以恢复污染土壤为目的的林带设计。这个项目需要进一步的研究,计划在未来进行。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Influence of forest belts on the total content of Pb and Cd and their exchange compounds in leached chernozems
The creation of artificial forest belts is an effective method of land reclamation. Forest belts have a positive impact on prevention of erosion processes, formation of heat and moisture regimes, reduction of turbulent exchange in the surface air layer and reduction of carbon dioxide share in the atmosphere. An important feature of forest plantations is the prevention of soil contamination with heavy metals (HM). It occurs due to profile redistribution of HM and partial remediation of soils. The obtained data confirm this position. Reliable transformation of leached chernozems under the influence of different-age forest belts in comparison with arable soils on the territory of All-Russian Research Institute of Sugar Beet and Sugar named after A.L. Mazlumov was revealed. Forest vegetation type contributes to more sustainable ecosystems due to stabilization of humus content and its uniform distribution throughout the soil profile. Correlation analysis revealed a close relationship between content of humus, soil solution pH and the gross content, as well as the exchangeable compounds of HM. An increase in the concentration of HM in the upper layer of arable chernozem was revealed; it was caused by active emissions of exhaust gases from agricultural machinery and the application of mineral fertilizers. The design of forest belts in order to restore contaminated soils is planned in the territory of Sichuan Province (southwest China). This project needs additional research, which is planned to be carried out in the future.
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