No interactive effects of pesticides and plant diversity on soil microbial biomass and respiration
No interactive effects of pesticides and plant diversity on soil microbial biomass and respiration
复制标题
DOI：
10.1016/j.apsoil.2009.01.005
复制
发表时间：
2009-05-01
影响因子：
4.8
通讯作者：
Scheu, Stefan
中科院分区：
文献类型：
--
作者：
Eisenhauer, Nico;Klier, Matthias;Scheu, Stefan
农药的非目标效应十分普遍，并有可能改变基本的生态系统过程。由于微生物是主要的土壤分解者，推动有机物分解、养分循环等关键过程，从而提高植物生产力，因此需要考虑农药对土壤微生物的影响。在关于生物多样性-生态系统功能的辩论中，出现了农药效应是否受植物群落多样性调节的问题。我们应用农药（乐果，毒死蜱和噻唑磷）的地块的耶拿实验现场不同的植物多样性，并测量基础呼吸，生物量和比呼吸的土壤微生物。农药的应用增加（毒死蜱和噻唑磷）或减少（乐果）土壤微生物参数，但影响既不与植物物种，也不与植物功能群丰富度。(C)2009 Elsevier B. V.保留所有权利。
Non-target effects of pesticides are widespread and potentially modify essential ecosystem processes. Since microorganisms are major soil decomposers driving key processes such as organic matter decomposition, nutrient cycling and, thereby, plant productivity, effects of pesticides on soil microorganisms need to be considered. In the context of the biodiversity-ecosystem functioning debate, the question arises if pesticide effects are modulated by the diversity of the plant community. We applied pesticides (dimethoate, chlorpyrifos and fosthiazate) to plots of the Jena Experiment field site differing in plant diversity, and measured basal respiration, biomass and specific respiration of soil microorganisms. Pesticide applications either increased (chlorpyrifos and fosthiazate) or decreased (dimethoate) soil microbial parameters, but the effects neither varied with plant species nor with plant functional group richness. (C) 2009 Elsevier B.V. All rights reserved.