Fan Min, Liang Huili
School of Environment and Resource, Southwest University of Science and Technology, Number 59, Middle of Qinglong Road, Fucheng District, Mianyang, Sichuan 621-010, China; Tianfu Institute of Research and Innovation, Southwest University of Science and Technology, Chengdu 610299, China.
School of Environment and Resource, Southwest University of Science and Technology, Number 59, Middle of Qinglong Road, Fucheng District, Mianyang, Sichuan 621-010, China; Tianfu Institute of Research and Innovation, Southwest University of Science and Technology, Chengdu 610299, China.
J Hazard Mater. 2025 Jan 15;482:136602. doi: 10.1016/j.jhazmat.2024.136602. Epub 2024 Nov 20.
The soil health of heavy metals in dressing and smelting slag field varies soil physicochemical properties. This study proposed a new soil health index based on heavy metal pollution-buffer-fertility for dressing and smelting slag field. Consequently, spatial distribution of soil physicochemical properties and heavy metals were varied, and correlated to each other. Soil buffer function and fertility played a much more important role in soil health in the dressing and smelting slag field located in Gejiu city, which can result in that soil health indexes were higher than those in Huili county, although the soil heavy metal pollution in the former was severer than that in the latter. Maximum values of soil health indexes for dressing and smelting slag field in Gejiu city were 3.84, 0.61, and 1.75 corresponding to additive, multiplicative, and maximum value composite methods, which were higher than those in Huili county with 2.25, 0.61, and 0.17. The former's high value is concentrated in southeastern regions and low value in some western areas, the latter's high value occurred in southeastern districts and low value in northwestern places. So this study unveils a novel perspective on the soil health consequences associated with soil heavy metal pollution-buffer-fertility three aspects.
选矿和冶炼渣场中重金属的土壤健康状况会改变土壤的物理化学性质。本研究针对选矿和冶炼渣场提出了一种基于重金属污染-缓冲-肥力的新型土壤健康指数。因此，土壤物理化学性质和重金属的空间分布各不相同，且相互关联。在个旧市的选矿和冶炼渣场中，土壤缓冲功能和肥力对土壤健康起着更为重要的作用，这可能导致尽管前者的土壤重金属污染比后者更严重，但其土壤健康指数却高于会理县。个旧市选矿和冶炼渣场土壤健康指数的最大值分别为3.84、0.61和1.75，对应相加法、相乘和最大值复合方法，高于会理县的2.25、0.61和0.17。前者的高值集中在东南部地区，一些西部地区为低值，后者的高值出现在东南部地区，西北部地区为低值。因此，本研究揭示了与土壤重金属污染-缓冲-肥力三个方面相关的土壤健康后果的新视角。
