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Effect of organophosphorus pesticide pollution on soil animals

Journal of Environmental Sciences 2000年第1期12卷 49-58页

作者： Wang, Zhen-Zhong Zhang, You-Mei Guo, Yong-Can Li, Zhong-Wu Resource and Environment Department Hunan Normal University Changsha 410081 China

This paper studied the change in soil animal community in contaminated and irrigated area by organophosphorus pesticide waste water and its mechanism was discussed. The results showed that the species and quantities of soil animals decreased with organophosphorus pesticide pollution degree increasing. The species of soil animals decreased with average and rare population mainly decreasing, while the amount change was associated with that of the dominant population of Acarina, Collembola and Nematoda. Toxicity experiment demonstrated that the respiration intensity of soil animal was restrained obviously by pesticide pollution. After observation of SEM, the effect of pesticide pollution on the earthworm (\%Pheretima robusta)\% stomach intestinal mucosa damage has been observed, which showed the pesticide contamination may damage the earthworms bodies. Ulcerous focus and perforation on stomach mucosa were usually seen. The stomach microvilli appeared atrophic and disordered especially in the bodies of these earthworms growing in seriously polluted soil, bad atrophic phenomena were seen not only on the stomach mucosa microvilli but also on the cilia of the intestinal mucosa which appeared swollen as a spheroid. Under TEM, RER and Golgi compound dilatation, chondrisome swell and ridge disappearance were observed on cells of stomach epithelium mucosa of \%***\% collected from heavy polluted area. By calculation, the safety concentration of earthworm in methamidophos pesticide is 0\^2517 ml/L.

关键词： pesticide pollution soil animal respiration intensity pathological changes LC 50 CLC number: X592 Document code: A

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Comprehensive Treatment Technology of pesticidecontaminated Soil

引用

Plant Diseases and Pests 2016年第2期7卷 36-38页

作者： Liu Wei Bijie Vocational and Technical College Bijie 551700 China

Access approach of pesticide into soil and its migration and transformation process in soil are analyzed in the paper. Furthermore, it is put forward that soil pollution can be prevented by enhancing farmers＇ consciousness of safe and reasonable application of pesticide, strengthening production and management of pesticide, adopting comprehensive prevention and control measures, and developing treatment technology of pesticide-contaminated soil.

关键词： Soil pesticide pollution Comprehensive treatment

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