Forest aging, disturbance and the carbon cycle

TitleForest aging, disturbance and the carbon cycle
Publication TypeJournal Article
Year of Publication2018
AuthorsCurtis PS, Gough CM
JournalNew Phytologist
Volume11520893601651821063897135849211621871824561134551414214063216481771017273619659947400305
Date PublishedApr-05-2019
Keywordscarbon cycle, disturbance, eddycovariance, FLUXNET, forest, net ecosystemproduction, SUCCESSION
Abstract

Large areas of forestland in temperate North America, as well as in other parts of the world, aregrowing older and will soon transition into middle and then late successional stages exceeding100 yr in age. These ecosystems have been important regional carbon sinks as they recovered fromprior anthropogenic andnatural disturbance, buttheir future sink strength, or annual rate of carbonstorage, is in question. Ecosystem development theory predicts a steady decline in annual carbonstorage as forests age, but newly available, direct measurements of forest net CO2exchangechallenge that prediction. In temperate deciduous forests, where moderate severity disturbanceregimes now often prevail, there is little evidence for any marked decline in carbon storage rateduring mid-succession. Rather, an increase in physical and biological complexity under thesedisturbance regimes may drive increases in resource-use ef´Čüciency and resource availability thathelptomaintainsigni´Čücantcarbonstorage intheseforests well pastthe centurymark.Conservationof aging deciduous forests may therefore sustain the terrestrial carbon sink, whilst providing othergoods and services afforded by these biologically and structurally complex ecosystems.

URLhttp://doi.wiley.com/10.1111/nph.15227http://onlinelibrary.wiley.com/wol1/doi/10.1111/nph.15227/fullpdfhttp://api.wiley.com/onlinelibrary/chorus/v1/articles/10.1111%2Fnph.15227https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fnph.15227
DOI10.1111/nph.15227
Short TitleNew Phytol
Related research sites: 
UMBS AmeriFlux Tower
UMBS FASET Tower