New strategy for exploring the accumulation of heavy metals in soils derived from different parent materials in the karst region of southwestern China

Xiao, Jian; Chen, Wei; Wang, Lei; Zhang, Xiaoke; Wen, Yubo; Bostick, B. C.; Wen, Yongli; He, Xinhua; Zhang, Jintao; Zhuo, Xiaoxiong; Huang, Kun; Wang, Ningtao; Ji, Junfeng; Liu, Yuanyuan

doi:10.1016/j.geoderma.2022.115806

Cited by 13 publications

(4 citation statements)

References 67 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Both carbonate and basalt parent materials are developed in the Baoshan area, and soils with basalt parent materials such as granite are rich in Cd, Cu, and Zn. Soils derived from carbonate rocks are rich in Cd, Pb, Cu, and Zn, and their natural genesis results in high Zn and Cu contents and low coefficients of variation [ 44 , 45 ]. However, the Zn and Cu contents of the samples (48.6 and 54.6%, respectively) were higher than the background values.…”

Section: Resultsmentioning

confidence: 99%

Quantitative Source Apportionment of Potentially Toxic Elements in Baoshan Soils Employing Combined Receptor Models

Dong

Zhang

Yang

et al. 2023

Toxics

View full text Add to dashboard Cite

Arable soils are crucial for national development and food security; therefore, contamination of agricultural soils from potentially toxic elements (PTEs) is a global concern. In this study, we collected 152 soil samples for evaluation. Considering the contamination factors and using the cumulative index and geostatistical methods, we investigated the contamination levels of PTEs in Baoshan City, China. Using principal component analysis, absolute principal component score-multivariate linear regression, positive matrix factorization, and UNMIX, we analyzed the sources and quantitatively estimated their contributions. The average Cd, As, Pb, Cu, and Zn concentrations were 0.28, 31.42, 47.59, 100.46, and 12.36 mg/kg, respectively. The Cd, Cu, and Zn concentrations exceeded the corresponding background values for Yunnan Province. The combined receptor models showed that natural and agricultural sources contributed primarily to Cd and Cu and As and Pb inputs, accounting for 35.23 and 7.67% pollution, respectively. Industrial and traffic sources contributed primarily to Pb and Zn inputs (47.12%). Anthropogenic activities and natural causes accounted for 64.76 and 35.23% of soil pollution, respectively. Industrial and traffic sources contributed 47.12% to pollution from anthropogenic activities. Accordingly, the control of industrial PTE pollution emissions should be strengthened, and awareness should be raised to protect arable land around roads.

show abstract

Section: Resultsmentioning

confidence: 99%

Quantitative Source Apportionment of Potentially Toxic Elements in Baoshan Soils Employing Combined Receptor Models

Dong

Zhang

Yang

et al. 2023

Toxics

View full text Add to dashboard Cite

show abstract

“…The soil samples then passed through a 100-mesh sieve and were digested by mix acid (HCl-HNO 3 ) solution for the analysis of heavy metal concentration in the soil samples. The pH of the soil sample was determined through a soil-to-water mixture (1:2.5, w / v ) using the potentiometric method [ 37 , 38 , 39 ]. The total concentration of five heavy metal (Pb, Cd, As, Hg, and Cr), as the priority elements in the Chinese Soil Environmental Quality Risk Control Standard for Soil Contamination of Agricultural Land (GB15618-2018) [ 40 ], were of concern in this study.…”

Section: Methodsmentioning

confidence: 99%

Pollution Risk Assessment and Sources Analysis of Heavy Metal in Soil from Bamboo Shoots

Wang

Chen

Wang

et al. 2022

IJERPH

View full text Add to dashboard Cite

In order to investigate the pollution situation and sources analysis of heavy metals in bamboo shoot soil in Guangdong Province, a total of 175 soil samples were collected at 46 sites. Atomic fluorescence spectrophotometer and inductively coupled plasma mass spectrometry were used to determine the content of five heavy metals: lead (Pb), cadmium (Cd), arsenic (As), mercury (Hg), and chromium (Cr). In addition, the soil environmental quality was evaluated through different index methods, including single-factor pollution, Nemeiro comprehensive pollution, geoaccumulation, and potential ecological risk. Furthermore, the correlation coefficients were also discussed. The results showed that the soils collected were acidic or slight alkaline. The maximum content of Pb and As from some areas exceeded the standard limit value. The coefficient of variation value from six areas exceeded 100%. The index method mentioned above confirmed that the soil within study areas was divided into three pollution levels: no, slightly, and mild. Additionally, there was a very significant correlation between pH and Pb, Hg; the correlation between heavy metal As and Pb, Cr also reached a very significant level. The principal component analysis results show that PC1 accounts for 39.60% of the total variance, which includes Pb, Cd, and As. PC2 mainly includes Hg and Cr.

show abstract

“…Aromatic C-H out-of-plane bend (Xiao et al, 2022) + Note: Signs of the cross peaks were obtained from Figure 7 (a and c: the synchronous maps; b and d: asynchronous maps): +, positive; À, negative. Rowley et al, 2018;Sowers et al, 2018;Edlinger et al, 2023).…”

Section: Environmental Drivers Of the Aggregate Stability And Socmentioning

confidence: 99%

Interactive effects of salinity and straw on the soil aggregate stability and organic carbon sequestration in saline soils in the Hetao area, China

Li,

Yang,

Yao

et al. 2024

Land Degrad Dev

View full text Add to dashboard Cite

Soil organic carbon (SOC) and aggregate stability are the critical factors in evaluate soil quality and carbon sinks in agricultural soils. Especially in complex saline soils containing larges amount of sodium and calcium ions. To quantitatively estimate the importance of salinity factors, SOC fractions, and soil aggregate fractions on SOC contents and the mean weight diameter (MWD), as well as to reveal the transformation mechanism of SOC under the interactions between salinity and straw, a laboratory experiment was conducted on three soils with different salinity, with and without straw addition. The results showed that straw and salinity interactions significantly increased the proportion of large macro‐aggregate fractions and the MWD, decreased micro‐aggregate fractions, but promoted the conversion of SOC fractions to mineral‐associated organic carbon (MAOC) of micro‐aggregates in moderately saline soils. The responses of SOC contents and MWD to electrical conductivity (EC1:5) were nonlinear. The exchangeable sodium to calcium ions ratio (E‐Na/E‐Ca) (%IncMSE = 11.4, p < 0.01), and MAOC contents (%IncMSE = 17.0, p < 0.01) provided the best explanations of SOC contents, while the MWD was more explained by calcium carbonate (CaCO3) contents (%IncMSE = 9.6, p < 0.01), and MAOC/SOC (%IncMSE = 10.5, p < 0.01). The proportion of micro‐aggregate fractions was significant drivers of both SOC contents and MWD. The increased MAOC contents was mainly caused by improving the binding sensitivity of aliphatic compounds to salt‐related compounds, and the contents of C–C/C–H and C=O functional groups. The findings offer new perspectives into the mechanism of SOC sequestration and sustainable development of moderately saline soils under straw returning in the Hetao area.

show abstract

New strategy for exploring the accumulation of heavy metals in soils derived from different parent materials in the karst region of southwestern China

Cited by 13 publications

References 67 publications

Quantitative Source Apportionment of Potentially Toxic Elements in Baoshan Soils Employing Combined Receptor Models

Quantitative Source Apportionment of Potentially Toxic Elements in Baoshan Soils Employing Combined Receptor Models

Pollution Risk Assessment and Sources Analysis of Heavy Metal in Soil from Bamboo Shoots

Interactive effects of salinity and straw on the soil aggregate stability and organic carbon sequestration in saline soils in the Hetao area, China

Contact Info

Product

Resources

About