探讨B10生物柴油污染对人工污染土壤中Canavalia ensiformis生长和营养的影响

IF 3 Q3 ENGINEERING, ENVIRONMENTAL
Andres Lancheros, Osmar Brito, Maria de Fátima Guimarães
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引用次数: 0

摘要

由化石燃料和生物燃料引起的土壤污染可以改变土壤的化学和物理性质,限制其在农业、住宅和娱乐目的上的使用。植物修复提供了一种具有成本效益和可管理的解决方案,可用于大面积减轻这些环境影响。本研究旨在评价B10生物柴油在人工污染土壤修复过程中豆角(Canavalia ensiformis)的生长和营养。试验设计是完全随机的,有4个重复和3个污染水平,分别为B10、0%、1%和2% vol/wt,分别在播种后20、40和60天进行评估。评估植物生长情况:茎部和根的干生物量、高度、叶片数量、叶面积和植物营养:宏量和微量营养素蔬菜组织。茎、根干生物量、株高、叶片数和叶面积均与污染程度成反比显著降低。播后20 d,在B10污染土壤中生长的弓形虫降低了氮和钾的浓度,增加了磷和硫的浓度,而钙和镁的浓度未受影响。播后60 d,除钾外,其余均趋于平衡。微量元素方面,播后20 d锰含量增加,铁含量减少,铜、锌含量保持不变。尽管存在生长和营养方面的限制,但在受碳氢化合物污染的地区,弓形草是一种可行的植物修复选择。其吸氮能力使其成为修复燃料污染土壤的理想天然肥料。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Exploring the effects of B10 biodiesel contamination on Canavalia ensiformis growth and nutrition in artificially contaminated soil
Abstract Soil contamination caused by fossil fuels and biofuels can alter the chemical and physical properties of soil, limiting its use for agricultural, residential, and recreational purposes. Phytoremediation offers a cost‐effective and manageable solution to mitigate these environmental impacts that can be applied to large areas. The aim of this study was to evaluate Canavalia ensiformis (jack bean) growth and nutrition during the remediation of B10 biodiesel in artificially contaminated soil. The experimental design was fully randomized, with four replications and three contamination levels with B10, 0%, 1%, and 2% vol/wt, evaluated over 20, 40, and 60 days after sowing. Plant growth was assessed: shoot and root dry biomass, height, number of leaves, leaf area, and plant nutrition: macro‐ and micronutrient vegetable tissue. Dry biomass of shoots and roots, plant height, the number of leaves, and the leaf area decreased significantly in inverse proportion to the level of contamination. Twenty days after sowing, C. ensiformis growing in B10‐contaminated soil reduced the nitrogen and potassium concentrations, while phosphorus and sulfur increased, and calcium and magnesium remained unaffected. However, all except potassium tended to equilibrium after 60 days of sowing. Regarding micronutrients, manganese increased after 20 days of sowing, while iron decreased, and copper and zinc remained unchanged. Despite its growth and nutrition limitations, C. ensiformis is a viable option for phytoremediation in areas contaminated with hydrocarbons. Its nitrogen absorption capacity makes it an ideal natural fertilizer for the remediation of fuel‐contaminated soils.
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来源期刊
CiteScore
3.50
自引率
21.10%
发文量
37
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