阿维菌素B1a对土壤微生物和蚯蚓的影响

应用生态学报 ›› 2005, Vol. 16 ›› Issue (11): 2140-2143.

阿维菌素B_1a对土壤微生物和蚯蚓的影响

孙英健^1,2, 刁晓平¹, 沈建忠¹

1. 中国农业大学, 北京 100094;
2. 北京农学院动物科学系, 北京 102206

收稿日期:2004-09-10 修回日期:2005-06-22 出版日期:2005-11-15 发布日期:2005-11-15
通讯作者: 孙英健,女,1970年生,硕士,讲师.主要从事动物性食品卫生学和药理学的教学和科研工作,发表论文7篇.E-mail:yisun51@bac.edu.cn
基金资助:
国家自然科学基金重点资助项目(30130140).

Effects of avermectin B_1a on soil microorganism and earthworm(Eisenia fetida)

SUN Yingjian^1,2, DIAO Xiaoping¹, SHEN Jianzhong ¹

1. China Agricultural University, Beijing 100094, China;
2. Department of Animal Science, Beijing Agricultural College, Beijing 102206, China

Received:2004-09-10 Revised:2005-06-22 Online:2005-11-15 Published:2005-11-15

摘要/Abstract

摘要： 研究了不同阿维菌素B_1a浓度对种土壤微生物生长和呼吸强度的影响及对土壤中蚯蚓的急性毒性.结果表明,土壤中阿维菌素B_1a浓度在83.3 mg·kg^-1以上时对种土壤细菌均表现出明显的抑制作用,但对土壤真菌不表现抑制作用.高浓度阿维菌素B_1a对土壤微生物的呼吸强度有抑制作用,并且在不同土壤其作用有差异.采用滤纸接触试验和人工土壤试验测定阿维菌素对蚯蚓的急性毒性(半数致死量,LD₅₀),接触毒性LD₅₀为.63μg·cm^-2,土壤法试验测定的LD₅₀在处理后第7 d和第1 d分别为2.13和17.06 mg·kg^-1.

关键词: 阿维菌素B_1a, 土壤微生物, 蚯蚓, 急性毒性

Abstract: Avermectins are the pesticides widely applied in agriculture.This paper studied the effects of different concentration avermectin B_1a(AVM B_1a) on soil bacteria and fungi,soil respiration,and soil earthworm(Eisenia fetida).The results showed that in 4 test soils,bacteria were significantly inhibited when the AVM B_1a concentration was higher than 83.3 mg·kg^-1,while fungi were less impaired.Soil respiration was also inhibited by high concentration AVM B_1a,which differed with soil types.The half lethal dosage(LD₅₀) of AVM B_1a to soil earthworm was estimated as 4.63 μg·cm^-2 in filter paper contact test,and as 24.13 and 17.06 mg·kg^-1,respectively after treated 7 and 14 days in artificial soil.

Key words: Avermectin B_1a, Soil microorganism, Earthworm, Acute toxicity

中图分类号:

Q935

孙英健, 刁晓平, 沈建忠. 阿维菌素B_1a对土壤微生物和蚯蚓的影响[J]. 应用生态学报, 2005, 16(11): 2140-2143.

SUN Yingjian, DIAO Xiaoping, SHEN Jianzhong . Effects of avermectin B_1a on soil microorganism and earthworm(Eisenia fetida)[J]. Chinese Journal of Applied Ecology, 2005, 16(11): 2140-2143.

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