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首页> 外文期刊>Pedobiologia >The role of Collembola in carbon and nitrogen cycling in soil
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The role of Collembola in carbon and nitrogen cycling in soil

机译：Collembola在土壤碳氮循环中的作用

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The article reviews recent publications dealing with relationships between Collembola, carbon and nitrogen turnover. Under field conditions, correlations between Collembola, total C and N are usually weak. More pronounced interdependences can be found with microbial parameters, especially when using multivariate statistics and sampling at high temporal resolution. Many manipulation experiments have revealed strong and usually positive impacts of Collembola on N mineralisation, soil respiration, leaching of dissolved organic carbon and plant growth. The effects are mostly indirect and depend on temperature, water content, substrate quality, population density, Collembola species, plant species and in particular on interactions with other soil biota. Key mechanisms are fungal feeding, distribution of fungal propagules, root herbivory and predation on nematodes. Omnivory is probably the prevailing feeding strategy in Collembola. Finally, a tentative conceptual model for arable soils is given, explaining the differing effects of Collembola on C and N turnover by switching feeding strategies according to environmental conditions.
机译：本文回顾了有关Collembola，碳和氮转换之间关系的最新出版物。在田间条件下，Collembola，总碳和氮之间的相关性通常很弱。微生物参数之间存在更明显的相互依赖性，尤其是在使用多元统计数据和高时间分辨率采样时。许多操作实验表明，Collembola对氮矿化，土壤呼吸，溶出的有机碳淋溶和植物生长具有强大且通常是积极的影响。影响主要是间接的，取决于温度，水含量，基质质量​​，种群密度，Collembola物种，植物物种，尤其取决于与其他土壤生物的相互作用。关键机制是真菌进食，真菌繁殖体的分布，食草根和对线虫的捕食。杂食性可能是Collembola流行的喂养策略。最后，给出了耕地土壤的初步概念模型，通过根据环境条件切换饲喂策略，解释了Collembola对碳和氮周转的不同影响。

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