在地中海盆地可能由野火引起的释放:来自意大利一个前矿区的证据
F Ciani1, A Nannoni1, G Morelli2
1Department of Earth Sciences, Università degli Studi di Firenze, Via G. La Pira 4, Firenze 50121, Italy.
Journal of hazardous materials
|December 19, 2025
概括
地中海的野火可以从植被和土壤中释放出大量的 (Hg). 这项研究量化了的吸收量和估计的潜在释放量,突出了对环境和人类健康的风险.
科学领域:
- 环境科学 环境科学
- 生物地质化学生物地质化学
- 生态毒理学 生态毒理学
背景情况:
- 地中海生态系统面临着越来越多的气候变化影响,包括野火.
- 野火可以调动有毒元素,如 (Hg),影响生物地球化学循环.
- 采矿活动可能导致土壤和植被局部污染.
研究的目的:
- 量化不同植物物种和土壤在前山的 (Hg) 吸收量. 阿米亚塔矿业区 (MAMD).
- 评估在地中海盆地的假设野火场景下,从植被和土壤中释放的潜在 (Hg).
- 了解植被和垃圾分解在 (Hg) 循环和转移中的作用.
主要方法:
- 分析了各种树木物种 (,栗子,松) 的度 (Hg),MAMD和背景地点的垃圾和土壤.
- 用植物生物质估计来计算在不同野火严重程度场景下可能释放的.
- 进行了统计分析,以确定物种和地点之间度的显著差异.
主要成果:
- 在树种之间观察到Hg度的显著变化,松树皮呈现的最高水平和木最低水平.
- 树林在土壤和垃圾中都显示出Hg度最高,这表明垃圾分解在Hg转移中的重要性.
- 一个严重的野火场景可能会在纯树林中释放超过2公斤每公,其中包括垃圾,地表生物质和地表土壤.
结论:
- 野火对地中海生态系统的 (Hg) 释放构成重大风险,特别是在具有历史采矿污染的地区.
- 植被类型和垃圾分解在 (Hg) 积累和潜在动员中起着至关重要的作用.
- 这些发现对森林火灾易发地区的环境管理,风险评估和人类健康保护有影响.
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