Evaluating national ecological risk of agricultural pesticides from 2004 to 2017 in China

文献类型： 外文期刊

第一作者： Jiao, Cong

作者： Jiao, Cong;Chen, Lei;Sun, Cheng;Jiang, Yue;Shen, Zhenyao;Zhai, Limei;Liu, Hongbin

作者机构：

关键词： Pesticide; Nonpoint source pollution; Agricultural loss; Potential ecological risk; Spatial-temporal variability; Pesticide management

期刊名称：ENVIRONMENTAL POLLUTION （ 影响因子：8.071； 五年影响因子：8.35 ）

ISSN： 0269-7491

年卷期： 2020 年 259 卷

页码：

收录情况： SCI

摘要： In recent years, excessive application and loss of pesticides have caused great risks to the aquatic systems, but the spatio-temporal variability in the ecological risk that agricultural pesticides pose to aquatic systems has not been explored at the national scale. In this study, an integrated assessment framework was proposed for the potential ecological risk of surface water caused by agricultural pesticide loss. The spatio-temporal variability in the potential ecological risk caused by agricultural pesticide runoff was evaluated. Based on the results, the total pesticide emissions increased from 165.47 tons in 2004 to 179.77 tons in 2017. Among the three pesticide types, insecticide had the largest application, but its runoff was estimated as the lowest. High-risk areas of insecticide runoff were concentrated in the east, south and central part of China, while the central region of China was identified as a hotspot due to the high and the ever-increasing ecological risk. This study provides an integrated method for potential ecological risk assessment of agricultural pesticide runoff to adjacent water bodies in large-scale regions and the results of the study have direct implications for environmental policies on pesticide management in China and around the world. (C) 2019 Elsevier Ltd. All rights reserved.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序