Nitrification and nitrifying microbial communities in forest soils
Nitrification and nitrifying microbial communities in forest soils
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DOI：
10.1007/s10310-011-0266-5
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发表时间：
2011-08
影响因子：
1.5
通讯作者：
K. Isobe;K. Koba;S. Otsuka;K. Senoo
中科院分区：
文献类型：
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作者：
K. Isobe;K. Koba;S. Otsuka;K. Senoo
氮循环是如何调节的以及环境变化如何影响它是森林生态学的主要研究问题，因为在许多森林生态系统中，氮的有效性往往限制了植物的初级生产力。这些都被广泛强调，因为越来越多的关注在全球范围内的森林生态系统中的慢性和升高的N沉积。到目前为止，氮循环主要记录在与微生物群落以外的各种环境因素。然而，随着最近的快速发展，在文化独立的分子为基础的技术，微生物生态学家发现，在N循环的改变是高度相关的微生物群落的变化，通过改变资源供应或处理速率。在这篇综述中，我们描述了硝化作用作为一个关键的N循环过程，并提出了一般的方法来关联森林土壤中的硝化过程与硝化群落。此外，我们简要总结了目前可用的信息之间的关系的过程和土壤硝化群落动态。我们认为，连接N循环过程与微生物群落动态提供了一个更深入的了解机制，调节森林生态系统中的N循环。
How nitrogen (N) cycling is regulated and how environmental change affects it are major study questions in forest ecology, because N availability often limits the primary production of plants in many forest ecosystems. These are being extensively highlighted because of growing concerns regarding chronic and elevated N deposition in forest ecosystems on a global scale. Until now, N cycling has been mainly documented in association with various environmental factors other than microbial communities. However, with the recent rapid development in culture-independent molecular-based techniques, microbial ecologists have discovered that alterations in N cycling are highly associated with alternations in microbial communities through changes in either resource supplies or processing rates. In this review, we describe nitrification as a key N cycling process and present general approaches to associate the nitrification process with the nitrifying community in forest soils. Furthermore, we briefly summarize currently available information about the relationship between the process and nitrifying community dynamics in soil. We suppose that linking N cycling processes with microbial community dynamics provides a deeper insight into the mechanisms regulating N cycling in forest ecosystems.