Redefining fine roots improves understanding of below-ground contributions to terrestrial biosphere processes
McCormack, ML; Dickie, IA; Eissenstat, DM; Fahey, TJ; Fernandez, CW; Guo, DL; Helmisaari, HS; Hobbie, EA; Iversen, CM; Jackson, RB; Leppalammi-Kujansuu, J; Norby, RJ; Phillips, RP; Pregitzer, KS; Pritchard, SG; Rewald, B; Zadworny, M
2015
Source PublicationNEW PHYTOLOGIST
ISSN0028-646X
Volume207Issue:3Pages:505-518
AbstractFine roots acquire essential soil resources and mediate biogeochemical cycling in terrestrial ecosystems. Estimates of carbon and nutrient allocation to build and maintain these structures remain uncertain because of the challenges of consistently measuring and interpreting fine-root systems. Traditionally, fine roots have been defined as all roots 2mm in diameter, yet it is now recognized that this approach fails to capture the diversity of form and function observed among fine-root orders. Here, we demonstrate how order-based and functional classification frameworks improve our understanding of dynamic root processes in ecosystems dominated by perennial plants. In these frameworks, fine roots are either separated into individual root orders or functionally defined into a shorter-lived absorptive pool and a longer-lived transport fine-root pool. Using these frameworks, we estimate that fine-root production and turnover represent 22% of terrestrial net primary production globally - a c. 30% reduction from previous estimates assuming a single fine-root pool. Future work developing tools to rapidly differentiate functional fine-root classes, explicit incorporation of mycorrhizal fungi into fine-root studies, and wider adoption of a two-pool approach to model fine roots provide opportunities to better understand below-ground processes in the terrestrial biosphere.
SubtypeJournal
Keywordbelow ground ecosystem ecosystem modeling fine-root order mycorrhizal fungi net primary productivity (NPP) plant allocation plant traits
Subject AreaPlant Sciences
WOS Subject ExtendedPlant Sciences
WOS KeywordLONGLEAF PINE FOREST ; SOIL ORGANIC-MATTER ; ABIES L. KARST. ; NORWAY SPRUCE ; BRANCH ORDER ; CHINESE TEMPERATE ; MYCORRHIZAL FUNGI ; CARBON ALLOCATION ; GLOBAL PATTERNS ; STAND CHARACTERISTICS
Indexed BySCI
Language英语
WOS IDWOS:000357824400006
PublisherWILEY-BLACKWELL
Citation statistics
Cited Times:263[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/44387
Collection生态系统网络观测与模拟院重点实验室_生态网络实验室
Recommended Citation
GB/T 7714
McCormack, ML,Dickie, IA,Eissenstat, DM,et al. Redefining fine roots improves understanding of below-ground contributions to terrestrial biosphere processes[J]. NEW PHYTOLOGIST,2015,207(3):505-518.
APA McCormack, ML.,Dickie, IA.,Eissenstat, DM.,Fahey, TJ.,Fernandez, CW.,...&Zadworny, M.(2015).Redefining fine roots improves understanding of below-ground contributions to terrestrial biosphere processes.NEW PHYTOLOGIST,207(3),505-518.
MLA McCormack, ML,et al."Redefining fine roots improves understanding of below-ground contributions to terrestrial biosphere processes".NEW PHYTOLOGIST 207.3(2015):505-518.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[McCormack, ML]'s Articles
[Dickie, IA]'s Articles
[Eissenstat, DM]'s Articles
Baidu academic
Similar articles in Baidu academic
[McCormack, ML]'s Articles
[Dickie, IA]'s Articles
[Eissenstat, DM]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[McCormack, ML]'s Articles
[Dickie, IA]'s Articles
[Eissenstat, DM]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.