Spatiotemporal variation of soil heavy metals in China: The pollution status and risk assessment

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 871, P. 161768 - 161768

Published: Feb. 3, 2023

Language: Английский

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A global meta-analysis of heavy metal(loid)s pollution in soils near copper mines: Evaluation of pollution level and probabilistic health risks

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 835, P. 155441 - 155441

Published: April 22, 2022

Language: Английский

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Heavy metal-contained wastewater in China: Discharge, management and treatment

The Science of The Total Environment, Journal Year: 2021, Volume and Issue: 808, P. 152091 - 152091

Published: Dec. 1, 2021

Language: Английский

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Heavy metal(loid)s in agriculture soils, rice, and wheat across China: Status assessment and spatiotemporal analysis

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 882, P. 163361 - 163361

Published: April 15, 2023

Language: Английский

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Heavy metals in agricultural soil in China: A systematic review and meta-analysis

Eco-Environment & Health, Journal Year: 2022, Volume and Issue: 1(4), P. 219 - 228

Published: Nov. 24, 2022

Research about farmland pollution by heavy metals/metalloids in China has drawn growing attention. However, there was rare information on spatiotemporal evolution and levels of metals the major grain-producing areas. We extracted examined data from 276 publications between 2010 2021 covering five regions to 2021. Spatiotemporal characteristics main obtained meta-analysis. In addition, subgroup analyses were carried out study preliminary correlations related accumulation pollutants. Cadmium (Cd) found be most prevailing pollutant terms both spatial distribution temporal accumulation. The Huang-Huai-Hai Plain severely polluted. Accumulation Cd, mercury (Hg) copper (Cu) increased 2015 when compared with 1990 background data. Further, key (Cd, Cu, Hg, lead [Pb] zinc [Zn]) showed increasing trends 2016 all regions. Soil pH mean annual precipitation had variable influences metal Alkaline soil areas less rainfall faced higher levels. Farmlands cropped mixed species smaller effect sizes than those single upland crop, suggesting that use patterns could alleviate soil. Of various remediation efforts, projects only held a small market share. findings are important support research risk assessment, regulatory development, prevention, fund allocation actions.

Language: Английский

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The effects of microplastics on heavy metals bioavailability in soils: a meta-analysis

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 460, P. 132369 - 132369

Published: Aug. 22, 2023

Language: Английский

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Research progress on the environmental risk assessment and remediation technologies of heavy metal pollution in agricultural soil

Journal of Environmental Sciences, Journal Year: 2024, Volume and Issue: 149, P. 1 - 20

Published: Feb. 21, 2024

Language: Английский

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Estimate provincial-level effectiveness of the arable land requisition-compensation balance policy in mainland China in the last 20 years

Land Use Policy, Journal Year: 2023, Volume and Issue: 131, P. 106733 - 106733

Published: May 7, 2023

The "requisition-compensation balance policy" is a basic arable land protection policy promulgated by the Chinese government to maintain dynamic of total land. Since implementation policy", its important role in conservation has been widely noted. Multiple studies indicate effectiveness estimating quantity and quality change In addition, defects negative externalities are disputed. overall goal this study estimate provincial-level mainland China two periods (i.e., 2000—2010; 2010—2020) from four perspectives: balance; productivity farming distance; sustainability use. results showed that, first, was achieved during 2000–2020 national perspective. There still 19–23% provinces have failed reach balance. Second, decrease China's exacerbated 9612.1 thousand tons. 31254.6 ton. average potential yield index less than 1 for nearly all 2000–2010 became even worse next decade because occupying superior while compensating inferior become more quantity. Third, due lack constraints on distance changes most convert around urban rural areas built-up replenishing far residential without providing adequate agricultural infrastructure, which leads an increase cost consequently marginalization During 2010–2020, compensated at provincial level reached 2–7 times that occupied However, whole decreased 3.82–63.88% same period. This contradiction mainly increasing opportunity costs resulting with high (including past) be used low intensity or abandoned thus identified as other use types remote sensing classification models. factor outweighed "occupy nearby farther one", reduction distance. Fourth, percentage sustainable lower 70%. indicated utilization these insufficiently implemented monitored. Challenges along optimization were discussed respects: data, theory methodology design implementation. authors argue comprehensive should designed considering not only but also distance, ecological protection. A differentiated regulation mechanism requisition compensation trans-provincial formulated. can provide guidance optimizing regional reference countries protect

Language: Английский

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Spatial pattern of cultivated land fragmentation in mainland China: Characteristics, dominant factors, and countermeasures

Land Use Policy, Journal Year: 2024, Volume and Issue: 139, P. 107070 - 107070

Published: Jan. 26, 2024

Systematically recognizing spatial patterns and driving factors of cultivated land fragmentation is great significance for the exploration locally appropriate path to relieve fragmentation. This study aims estimate density, mean patch size area-weighted shape index respectively indicate characteristics from three dimensions, namely, natural resource endowment, partition, convenience utilization. The regional leading are also analyzed. results demonstrate that distribution density higher in Northern regions compared with those southern regions. significant positive correlation between found be universal across nearly all cities, exceeding differences terrain, elevation, climate, soil, social economic condition. For cities part China, regular partitioned smaller blocks irregular ones; alternatively, intensive meticulous farming under small-scale agricultural operation leads clusters low - index. Random forest model explains impact on fragmentation, an explanatory power ranging 66% 95%. terrain factor emerges as primary driver negatively affecting density. Gross domestic product dominant a (p < 0.01) negative climatic zones. Terrain, gross population most important Rural development degree influences greatly instructive at national scale exploring barriers impede regionally scaled use.

Language: Английский

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Heavy metal pollution in agricultural soils from surrounding industries with low emissions: Assessing contamination levels and sources

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 917, P. 170610 - 170610

Published: Feb. 1, 2024

Language: Английский

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