Please use this identifier to cite or link to this item:
https://hdl.handle.net/1959.11/6526
Title: | Root contributions to long-term storage of soil organic carbon: theories, mechanisms and gaps | Contributor(s): | Olupot, Giregon (author); Daniel, Heiko (author); Lockwood, Peter (author); McHenry, Melinda (author); McLeod, Malem Kerina (author) | Publication Date: | 2010 | Handle Link: | https://hdl.handle.net/1959.11/6526 | Abstract: | The depth to which plants locate their roots has important but yet poorly understood implications with regard to the profile distribution and dynamics of soil organic carbon (SOC). We compared the profile distribution of fine root biomass (FRB) with depth distribution of SOC, based on data recalculated from published literature. Mechanisms through which roots might contribute to long-term storage of SOC were reviewed. There was general agreement across previous studies that over 60% of SOC were in the top 0.3 m of soil, where FRB was concentrated. However, studies in which depth distribution of SOC was simultaneously compared to profile distribution of RB were not readily available, suggesting that this area of research has received limited attention. There is a paucity of empirical evidence to lend support to theorised mechanisms through which roots stabilise SOC. The relationship between profile distribution of roots and depth distribution of SOC must be evaluated on-site for defined landuses. A standardised format for presenting results must be developed and agreed upon to ease interpretation of the results. National Soil Science Societies may have a significant role in this process and this 19th World Congress of Soil Science will be an opportune assembly for dialogue. | Publication Type: | Conference Publication | Conference Details: | WCSS 2010: 19th World Congress of Soil Science, Brisbane, Australia, 1st - 6th August, 2010 | Source of Publication: | Proceedings of the 19th World Congress of Soil Science: Soil Solutions for a Changing World, p. 112-115 | Publisher: | International Union of Soil Sciences and Australian Society of Soil Science Inc | Place of Publication: | Brisbane, Australia | Fields of Research (FoR) 2008: | 050305 Soil Physics 050301 Carbon Sequestration Science |
Socio-Economic Objective (SEO) 2008: | 960904 Farmland, Arable Cropland and Permanent Cropland Land Management 960804 Farmland, Arable Cropland and Permanent Cropland Flora, Fauna and Biodiversity |
Peer Reviewed: | Yes | HERDC Category Description: | E1 Refereed Scholarly Conference Publication | Publisher/associated links: | http://www.iuss.org/19th%20WCSS/symposium/pdf/2060.pdf http://trove.nla.gov.au/work/37807472 |
---|---|
Appears in Collections: | Conference Publication |
Files in This Item:
File | Description | Size | Format |
---|
Page view(s)
1,018
checked on Mar 7, 2023
Items in Research UNE are protected by copyright, with all rights reserved, unless otherwise indicated.