Environmental risks of trace elements associated with long-term phosphate fertilizers applications: A review

被引:326
作者
Jiao, Wentao [1 ]
Chen, Weiping [1 ]
Chang, Andrew C. [2 ]
Page, Albert L. [2 ]
机构
[1] Chinese Acad Sci, Ecoenvironm Sci Res Ctr, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China
[2] Univ Calif Riverside, Dept Environm Sci, Riverside, CA 92521 USA
基金
中国国家自然科学基金;
关键词
Trace elements; Bioavailability; Fertilizer application; Croplands; Mass balance model; HEAVY-METAL BALANCES; AGRICULTURAL SOILS; PHOSPHORUS FERTILIZERS; CADMIUM ACCUMULATION; CONTAMINATED SOILS; PLANT UPTAKE; ARSENIC ACCUMULATION; ZINC; LEAD; CD;
D O I
10.1016/j.envpol.2012.03.052
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Application of phosphate fertilizer can be a significant contributor of potentially hazardous trace elements such as arsenic, cadmium, and lead in croplands. These trace elements have the potential to accumulate in soils and be transferred through the food chain. We articulated the environmental risks of trace elements associated with long-term phosphate fertilizer applications by combining data from the literature and results from model simulations. Results illustrate that under normal cropping practice, the impact of phosphate fertilizers applications on trace element accumulation in receiving soils has been limited and localized. Their plant uptake varied greatly depending on the fertilizer application rates, soil and plant characteristics. This has led to a great deal of uncertainty in characterizing soil distribution coefficients. K-d, and plant uptake factors, PUF, two of the most used parameters in assessing the risks of accumulations. Therefore, the risks may be more appropriately assessed based on the probabilistic distributions of K-d and PUF. (c) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:44 / 53
页数:10
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