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首页> 外文期刊>African Journal of Biotechnology >Seasonal changes in and relationship between soil microbial and microfaunal communities in a Tamarix chinensis community in the Yellow River Delta
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Seasonal changes in and relationship between soil microbial and microfaunal communities in a Tamarix chinensis community in the Yellow River Delta

机译：黄河三角洲Ta柳群落土壤微生物与微真菌群落的季节变化及其关系。

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The plant?Tamarix chinensis?is distributed along the coast of the Yellow River Delta in soils with high salinity. As the dominant local halophyte, it plays a unique role in modifying the local soil microenvironment. We investigated the effects of?T. chinensisvegetative cover and the seasons on the soil microbe and microfauna communities in?the Yellow River Delta.?In April, June and October 2010, soil samples were taken from an estuary of the Yellow River. We measured microbiomass (using the soil chloroform fumigation extraction method), substrate induced respiration (SIR), and phospholipid fatty acids (PLFA). Microbe community structure and soil nematode species richness exhibited distinct seasonal variation. The levels of PLFAs, soil microbial biomass carbon (SMBC), microbial biomass nitrogen (SMBN) and SIR were lower in April than in October?in?T. chinensis?sites. In June, there was a slight increase in the total abundance of PLFA and soil nematode diversity in?T. chinensissites. Stepwise regression analysis indicated that plant-feeding nematodes were a dominant factor for?changes in soil microbial community composition, and soil moisture, soil organic carbon and fungal-feeding nematode capacity were secondary factors. The distinct seasonal changes in the soil microbe community composition were likely driven by changes in?nematode trophic groups,?soil moisture and soil organic carbon.
机译：Ta柳（Tamarix chinensis）植物分布在黄河三角洲沿海高盐度土壤中。作为主要的地方盐生植物，它在改变当地土壤微环境中起着独特的作用。我们研究了ΔT的影响。黄河三角洲的中国植被覆盖度和土壤微生物和微动物群落的季节。2010年4月，6月和10月，从黄河河口采集了土壤样本。我们测量了微生物量（使用土壤氯仿熏蒸提取方法），底物诱导的呼吸作用（SIR）和磷脂脂肪酸（PLFA）。微生物群落结构和土壤线虫物种丰富度表现出明显的季节变化。在4月，PLFA，土壤微生物生物量碳（SMBC），微生物生物量氮（SMBN）和SIR的水平低于10月。中华遗址。 6月，？T中PLFA的总丰度和土壤线虫多样性略有增加。中华遗址。逐步回归分析表明，以植物为食的线虫是改变土壤微生物群落组成的主要因素，而土壤水分，土壤有机碳和以真菌为食的线虫的能力为次要因素。土壤微生物群落组成的明显季节性变化可能是由线虫营养族，土壤水分和土壤有机碳的变化驱动的。

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