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Limited dependence on soil nitrogen fixation as subtropical forests develop.
Fu, Ruoxian; Cao, Chaoyang; Liu, Li; Zhu, Hongguang; Malghani, Saadat; Yu, Yuanchun; Liao, Yangwenke; Delgado-Baquerizo, Manuel; Li, Xiaogang.
Afiliación
  • Fu R; State Key Laboratory of Tree Genetics and Breeding, Nanjing Forestry University, Nanjing 210037, China; College of Ecology and Environment, Nanjing Forestry University, Nanjing 210037, China.
  • Cao C; State Key Laboratory of Tree Genetics and Breeding, Nanjing Forestry University, Nanjing 210037, China; College of Ecology and Environment, Nanjing Forestry University, Nanjing 210037, China.
  • Liu L; State Key Laboratory of Tree Genetics and Breeding, Nanjing Forestry University, Nanjing 210037, China; College of Ecology and Environment, Nanjing Forestry University, Nanjing 210037, China.
  • Zhu H; State Key Laboratory of Tree Genetics and Breeding, Nanjing Forestry University, Nanjing 210037, China; College of Ecology and Environment, Nanjing Forestry University, Nanjing 210037, China.
  • Malghani S; Department of Plant and Environmental Sciences, University of Copenhagen, Copenhagen 1017, Denmark.
  • Yu Y; State Key Laboratory of Tree Genetics and Breeding, Nanjing Forestry University, Nanjing 210037, China; College of Ecology and Environment, Nanjing Forestry University, Nanjing 210037, China.
  • Liao Y; State Key Laboratory of Tree Genetics and Breeding, Nanjing Forestry University, Nanjing 210037, China; College of Ecology and Environment, Nanjing Forestry University, Nanjing 210037, China.
  • Delgado-Baquerizo M; Laboratorio de Biodiversidad y Funcionamiento Ecosistémico, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Sevilla, Spain.
  • Li X; State Key Laboratory of Tree Genetics and Breeding, Nanjing Forestry University, Nanjing 210037, China; College of Ecology and Environment, Nanjing Forestry University, Nanjing 210037, China. Electronic address: xgli@njfu.edu.cn.
Microbiol Res ; 285: 127757, 2024 Aug.
Article en En | MEDLINE | ID: mdl-38759379
ABSTRACT
Soil nitrogen (N) fixation, driven by microbial reactions, is critical to support the entrance of nitrogen in nutrient poor and pioneer ecosystems. However, how and why N fixation and soil diazotrophs evolve as forests develop remain poorly understood. Here, we used a 60-year forest rewilding chronosequence and found that soil N fixation activity gradually decreased with increasing forest age, experiencing dramatic drops of 64.8% in intermediate stages and 93.0% in the oldest forests. Further analyses revealed loses in diazotrophic diversity and a significant reduction in the abundance of important diazotrophs (e.g., Desulfovibrio and Pseudomonas) as forest develops. This reduction in N fixation, and associated shifts in soil microbes, was driven by acidification and increases in N content during forest succession. Our results provide new insights on the life history of one of the most important groups of soil organisms in terrestrial ecosystems, with consequences for understanding the buildup of nutrients as forest soil develops.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Suelo / Microbiología del Suelo / Bosques / Nitrógeno / Fijación del Nitrógeno Idioma: En Revista: Microbiol Res Asunto de la revista: MICROBIOLOGIA / SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Suelo / Microbiología del Suelo / Bosques / Nitrógeno / Fijación del Nitrógeno Idioma: En Revista: Microbiol Res Asunto de la revista: MICROBIOLOGIA / SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania