Tree basal area and conifer abundance predict soil carbon stocks and concentrations in an actively managed forest of northern New Hampshire, USA

TitleTree basal area and conifer abundance predict soil carbon stocks and concentrations in an actively managed forest of northern New Hampshire, USA
Publication TypeJournal Article
Year of Publication2019
AuthorsJevon, FV, D'Amato, AW, Woodall, CW, Evans, K, Ayres, MP, Matthes, JHatala
JournalForest Ecology and Management
Volume451
Pagination117534
Date Published2019/11/01/
ISBN Number0378-1127
Keywordsforest management, soil organic carbon, temperate forest
Abstract

Although northern temperate forests account for a substantial portion of global soil carbon stocks, the relationship between soil carbon and management remains unclear. As the active management of forests and associated forest product industries is often cited as a tactic to offset global greenhouse gas emissions, quantifying the effect of management activities on soil carbon pools is paramount to mitigating future climate change. Hence, our goal was to identify commonalities among the spatial variability, potential drivers, and total soil carbon stocks and concentrations at two locations with different management histories in an actively managed northern U.S. mixed wood forest. We measured the carbon pools of two soil profiles, separated into three layers, within 98 0.04-hectare plots in each of the two management areas. We scaled soil and aboveground carbon to estimate total carbon stocks in each area and examined plot-level soil carbon data in relation to landscape and vegetation factors to evaluate potential drivers of soil carbon. Soil carbon represented approximately 40% of the total carbon in both areas. Total soil carbon was similar between the two areas, but the vertical distribution of carbon differed, with more mineral soil carbon in the area with greater coniferous basal area and fewer harvests in the last 80 years. Soil carbon was moderately variable at small spatial scales (

URLhttp://www.sciencedirect.com/science/article/pii/S0378112719303901
DOI10.1016/j.foreco.2019.117534
StartPage

117534

Short TitleForest Ecology and Management