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Diversity of Microbial Functional Genes Promotes Soil Nitrogen Mineralization in Boreal Forests.
Zhang, Xiumin; Zhang, Huayong; Wang, Zhongyu; Tian, Yonglan; Tian, Wang; Liu, Zhao.
Afiliación
  • Zhang X; Research Center for Engineering Ecology and Nonlinear Science, North China Electric Power University, Beijing 102206, China.
  • Zhang H; Research Center for Engineering Ecology and Nonlinear Science, North China Electric Power University, Beijing 102206, China.
  • Wang Z; Theoretical Ecology and Engineering Ecology Research Group, School of Life Sciences, Shandong University, Qingdao 266237, China.
  • Tian Y; Research Center for Engineering Ecology and Nonlinear Science, North China Electric Power University, Beijing 102206, China.
  • Tian W; Research Center for Engineering Ecology and Nonlinear Science, North China Electric Power University, Beijing 102206, China.
  • Liu Z; Research Center for Engineering Ecology and Nonlinear Science, North China Electric Power University, Beijing 102206, China.
Microorganisms ; 12(8)2024 Aug 02.
Article en En | MEDLINE | ID: mdl-39203419
ABSTRACT
Soil nitrogen (N) mineralization typically governs the availability and movement of soil N. Understanding how factors, especially functional genes, affect N transformations is essential for the protection and restoration of forest ecosystems. To uncover the underlying mechanisms driving soil N mineralization, this study investigated the effects of edaphic environments, substrates, and soil microbial assemblages on net soil N mineralization in boreal forests. Field studies were conducted in five representative forests Larix principis-rupprechtii forest (LF), Betula platyphylla forest (BF), mixed forest of Larix principis-rupprechtii and Betula platyphylla (MF), Picea asperata forest (SF), and Pinus sylvestris var. mongolica forest (MPF). Results showed that soil N mineralization rates (Rmin) differed significantly among forests, with the highest rate in BF (p < 0.05). Soil properties and microbial assemblages accounted for over 50% of the variability in N mineralization. This study indicated that soil environmental factors influenced N mineralization through their regulatory impact on microbial assemblages. Compared with microbial community assemblages (α-diversity, Shannon and Richness), functional genes assemblages were the most important indexes to regulate N mineralization. It was thus determined that microbial functional genes controlled N mineralization in boreal forests. This study clarified the mechanisms of N mineralization and provided a mechanistic understanding to enhance biogeochemical models for forecasting soil N availability, alongside aiding species diversity conservation and fragile ecosystem revitalization in boreal forests.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Microorganisms Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Microorganisms Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza