Analysis and Assessment on the Heavy Metals in a Severely Degraded Subtropical Red Soil Region
Analysis and Assessment on the Heavy Metals in a Severely Degraded Subtropical Red Soil Region作者机构：College of Life Sciences Jiangxi Normal University Nanchang China Fengxi Street Office Guangfeng China College of Foreign Languages Jiangxi Agricultural University Nanchang China
出 版 物：《American Journal of Plant Sciences》 (美国植物学期刊（英文）)
年 卷 期：2024年第15卷第2期
页 面：110-121页
学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）]
主 题：Subtropical Forest Type Degraded Red Soil Heavy Metals Pollution Evaluation
摘 要：5 different forests of Pinus massoniana, Schima superba, Liquidambar formosana, P. massoniana × S. superba, P. massoniana × L. formosana as the research object were set up to study the Cr, Cu and Zn content of degraded red soil region in subtropics. The soil heavy metal pollution degree was evaluated by national environmental quality standard (II class). The results showed that three soil metals of P. massoniana × S. superba were the highest, and the soil metals enrichment ability was strong. The order of single factor pollution index of metal elements was Cu (1.38) Cr (0.81) Zn (0.42), and moderately pollution, pollution warning and no pollution, respectively. There was no significant correlation between three soil heavy metals and soil total carbon (TC), total nitrogen (TN) and total phosphorus (TP). These results suggested that the accumulation of heavy metal elements was not derived from the parent material of soil. There was a significant positive correlation between the three metal elements which indicated that the sources of the three elements were similar. The structural equation model showed that the direct and indirect effects among the influencing factors ultimately affected the activity of heavy metals by cascade effects.
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