An inventory of trace element inputs to agricultural soils in China.

By L. Luo, Yibing Ma, Shuzhen Zhang, D. Wei, Yong-guan Zhu. Journal of Environmental Management, 2009

690 citations recorded by the source corpus.

It is important to understand the status and extent of soil contamination with trace elements to make sustainable management strategies for agricultural soils. The inputs of trace elements to agricultural soils via atmospheric deposition, livestock manures, fertilizers and agrochemicals, sewage irrigation and sewage sludge in China were analyzed and an annual inventory of trace element inputs was developed. The results showed that atmospheric deposition was responsible for 43-85% of the total As, Cr, Hg, Ni and Pb inputs, while livestock manures accounted for approximately 55%, 69% and 51% of the total Cd, Cu and Zn inputs, respectively. Among the elements concerned, Cd was a top priority in agricultural soils in China, with an average input rate of 0.004 mg/kg/yr in the plough layer (0-20 cm). Due to the spatial and temporal heterogeneity of the sources, the inventory as well as the environmental risks of trace elements in soils varies on a regional scale. For example, sewage sludge and fertilizers (mainly organic and phosphate-based inorganic fertilizers) can also be the predominant sources of trace elements where these materials were excessively applied. This work provides baseline information to develop policies to control and reduce toxic element inputs to and accumulation in agricultural soils.

Subfields: Health, Toxicology and Mutagenesis, Industrial and Manufacturing Engineering, Pollution

View Paper: https://www.semanticscholar.org/paper/7dc30a1d2e351781736cb412c633121755dfafa3

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In Health, Toxicology and Mutagenesis

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Citations in the corpus

• Heavy metals in food crops: Health risks, fate, mechanisms, and management. (2019, background): “The primary sources of heavy metals in the soil environment and agriculture are atmospheric deposition, livestock manure, irrigation with wastewater or polluted water, metallo-pesticides or herbicides, phosphate-based fertilizers, and sewage sludge–based amendments (Chary et al., 2008; Cai et al., 2”
• The Challenges and Solutions for Cadmium-contaminated Rice in China: A Critical Review. (2016, background): “Dietary exposure through rice consumption is an important source of Cd exposure for the non sources (Luo et al., 2009; Roberts, 2014; Williams et al., 2009; Zhang et al., 2008a).”
• Transfer of heavy metals through terrestrial food webs: a review (2015, background): “…et al. (2013); (D2) Sánchez-Chardi et al. (2007b); Moriarty et al. (2012); Drouhot et al. (2014); (D3) Reglero et al. (2009); (F) Chary et al. (2008); (G) Luo et al. (2009); Atafar et al. (2010); McClellan and Halden (2010); Jiao et al. (2012) chelate metals into a form that cannot be absorbed.”
• Soil amendments for immobilization of potentially toxic elements in contaminated soils: A critical review. (2019, background): “, flue gas dusts and various slags) that are reused on agricultural lands to reduce burden on landfills could also contribute to elevated soil PTE levels (Luo et al., 2009).”