Suppr超能文献

土壤中锌积累的潜在生态风险评估与预测。

Potential ecological risk assessment and predicting zinc accumulation in soils.

机构信息

Department of Agricultural and Environmental Chemistry, University of Agriculture in Krakow, Al. Mickiewicza 21, 31-120, Krakow, Poland.

Department of Soil Science and Soil Protection, University of Agriculture in Krakow, Al. Mickiewicza 21, 31-120, Krakow, Poland.

出版信息

Environ Geochem Health. 2018 Feb;40(1):435-450. doi: 10.1007/s10653-017-9924-7. Epub 2017 Feb 22.

Abstract

The aims of this study were to investigate zinc content in the studied soils; evaluate the efficiency of geostatistics in presenting spatial variability of zinc in the soils; assess bioavailable forms of zinc in the soils and to assess soil-zinc binding ability; and to estimate the potential ecological risk of zinc in soils. The study was conducted in southern Poland, in the Malopolska Province. This area is characterized by a great diversity of geological structures and types of land use and intensity of industrial development. The zinc content was affected by soil factors, and the type of land use (arable lands, grasslands, forests, wastelands). A total of 320 soil samples were characterized in terms of physicochemical properties (texture, pH, organic C content, total and available Zn content). Based on the obtained data, assessment of the ecological risk of zinc was conducted using two methods: potential ecological risk index and hazard quotient. Total Zn content in the soils ranged from 8.27 to 7221 mg kg d.m. Based on the surface semivariograms, the highest variability of zinc in the soils was observed from northwest to southeast. The point sources of Zn contamination were located in the northwestern part of the area, near the mining-metallurgical activity involving processing of zinc and lead ores. These findings were confirmed by the arrangement of semivariogram surfaces and bivariate Moran's correlation coefficients. The content of bioavailable forms of zinc was between 0.05 and 46.19 mg kg d.m. (0.01 mol dm CaCl), and between 0.03 and 71.54 mg kg d.m. (1 mol dm NHNO). Forest soils had the highest zinc solubility, followed by arable land, grassland and wasteland. PCA showed that organic C was the key factor to control bioavailability of zinc in the soils. The extreme, very high and medium zinc accumulation was found in 69% of studied soils. There is no ecological risk of zinc to living organisms in the study area, and in 90% of the soils there were no potentially negative effects of zinc to ecological receptors.

摘要

本研究的目的是调查研究土壤中的锌含量;评估地统计学在呈现土壤中锌空间变异性方面的效率;评估土壤中锌的生物可利用形态和土壤锌结合能力;并估计土壤中锌的潜在生态风险。该研究在波兰南部的小波兰省进行。该地区的地质结构、土地利用类型和工业发展强度差异很大。锌含量受土壤因素和土地利用类型(耕地、草地、森林、荒地)的影响。对 320 个土壤样本进行了物理化学性质(质地、pH 值、有机碳含量、总锌和有效锌含量)的特征描述。根据获得的数据,使用两种方法评估锌的生态风险:潜在生态风险指数和危害商数。土壤中总锌含量范围为 8.27 至 7221 毫克/千克干物质。基于表面半变异函数,土壤中锌的最高变异性从西北向东南方向观察到。锌污染的点源位于该地区的西北部,靠近涉及锌和铅矿石加工的采矿业。这些发现得到了半变异函数表面和双变量 Moran 相关系数排列的证实。生物可利用形态的锌含量在 0.05 至 46.19 毫克/千克干物质(0.01 摩尔/分米 CaCl)之间(0.03 至 71.54 毫克/千克干物质(1 摩尔/分米 NHNO)之间。森林土壤的锌溶解度最高,其次是耕地、草地和荒地。PCA 表明,有机碳是控制土壤中锌生物利用度的关键因素。在研究的土壤中,有 69%发现锌积累处于极端、非常高和中等水平。研究区域内的锌对生物没有生态风险,在 90%的土壤中,锌对生态受体没有潜在的负面影响。

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验