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首页> 外文期刊>African Journal of Biotechnology >Soil microbial community response to land use and various soil elements in a city landscape of north China
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Soil microbial community response to land use and various soil elements in a city landscape of north China

机译：中国北方城市景观中土壤微生物群落对土地利用和各种土壤元素的响应

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摘要

A field experiment in north China was conducted to study the effects of land use and soil elements at a moderate concentration on the amounts of various microbial populations, microbial community structure and catabolic activity which were analyzed by cultural method, phospholipid fatty acid (PLFA) and biolog techniques, respectively. The results showed that, land use type might be the primary control on soil microbial community structure. Legumes or soil N was hypothesized as the secondary factor influencing the soil microbial community structure. Legumes played an important role in stimulating the growth and reproduction of various soil microbial populations, accordingly promoting the microbial catabolic activity. Plant diversity had a significant positive effect on the amount of soil bacteria. Soil Cd at moderate concentration had a significant positive effect on microbial biomass. The majority of soil elements at moderate concentration except for Cr had no marked effects on microbial catabolic activity.
机译：在华北地区进行了田间试验，研究了中等浓度的土地利用和土壤元素对各种微生物种群数量，微生物群落结构和分解代谢活性的影响，并通过培养方法，磷脂脂肪酸和biolog技术。结果表明，土地利用类型可能是土壤微生物群落结构的主要控制因子。豆科植物或土壤氮被认为是影响土壤微生物群落结构的次要因素。豆科植物在刺激各种土壤微生物种群的生长和繁殖中起着重要作用，从而促进了微生物的分解代谢活性。植物多样性对土壤细菌的数量具有明显的积极影响。中等浓度的土壤镉对微生物生物量具有显着的积极影响。除铬外，大多数中等浓度的土壤元素对微生物分解代谢活性均无明显影响。

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