How do boreal forest soils store carbon?. (6th May 2021)

• Record Type: Journal Article
• Authors: Adamczyk, Bartosz
• Is Part Of: BioEssays. Volume 43:Number 7(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-05-06
• Subjects: C and N cycle -- C stabilization -- organic N; Molecular biology -- Periodicals; Cytology -- Periodicals; Developmental biology -- Periodicals; 572.8
• DOI: 10.1002/bies.202100010
• Languages: English
• ISSNs: 0265-9247

Abstract

Abstract: Boreal forests store a globally significant pool of carbon (C), mainly in tree biomass and soil organic matter (SOM). Although crucial for future climate change predictions, the mechanisms underlying C stabilization are not well understood. Here, recently discovered mechanisms behind SOM stabilization, their level of understanding, interrelations, and future directions in the field are provided. A recently unraveled mechanism behind C stabilization via interaction of root‐derived tannins with fungal necromass emphasizing fungal necromass chemistry is brought forth. The long‐lasting dogma of the stability of SOM on minerals is challenged and the newest insights from the field of soil fauna and their influence on SOM stabilization are provided. In conclusion, mechanisms unraveled during the last decade are crucial steps forward to draw a holistic view of the main drivers of SOM stabilization. Abstract : Boreal forest soil is a globally significant carbon pool, thus mechanisms behind its stabilization are intensively studied. Here newest information about three important mechanisms to stabilize C are critically considered: tannin‐fungal necromass interactions, stabilization of organic compounds on minerals and role of soil fauna.