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首页> 外文会议>International conference on environmental biotechnology and materials engineering;EBME 2011 >Effects of chlorothalonil on soil microbial community of Larix artificial forest
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Effects of chlorothalonil on soil microbial community of Larix artificial forest

机译：百菌清对落叶松人工林土壤微生物群落的影响。

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The fungicide chlorothalonil is considered to be non-selective and used commonly to control a broad spectrum of plant diseases. Effects of Chlorothalonil on soil microbial community were investigated at recommended rates by Biolog-Eco detecting method. The results showed AWCD values of treatment were all lower than untreatment in three soil layers. At the initial stage, AWCD values of all treatments were lower than the control, and its changing trends were different between surface, upper layers and under layers. The trendency was similar showing increased during two months and decreased till tweleve months in upper and under layer control soil after chlorothalonil application. For upper and under layer treated soil, the trend indicated decreased during two months, then increased at the period of 2-4 months, finally decreased till 12 months. Principle component analysis facilitied for average optical density in different layers of soil microbial community while largely carbon sources had similar loadings before spraying and two months later. The ability of single carbon conversion ratio of soil microbial community obviously improved after chlorothalonil spraying, chlorothalonil residue in soil was determined accompanying with time after chlorothalonil treatment.The fluctuation tendency was all declined accompanying with times after spraying chlorothalonil.In conclusion, chlorothalonil has effects on soil microbial community of Larix artificial forest.
机译：百菌清杀真菌剂被认为是非选择性的，通常用于控制广泛的植物病害。通过Biolog-Eco检测方法，以推荐的速率研究了氯草隆对土壤微生物群落的影响。结果表明，在三个土壤层中，处理的AWCD值均低于未处理的值。在初始阶段，所有处理的AWCD值均低于对照，并且其变化趋势在表层，上层和下层之间是不同的。施用百菌清后，上层和下层对照土壤的趋势相似，显示在两个月内有所增加，直到十二个月才减少。对于上层和下层处理的土壤，趋势表明在两个月内下降，然后在2-4个月内上升，最后下降到12个月。主成分分析有助于土壤微生物群落不同层的平均光密度，而大部分碳源在喷洒前和两个月后的载量相似。喷施百菌清后土壤微生物群落的单碳转化率能力明显提高，测定了百菌清处理后随时间的变化确定了土壤中的百菌清残留量，随百菌清的施药时间的变化趋势均下降。落叶松人工林土壤微生物群落

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