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Potential increases in natural disturbance rates could offset forest management impacts on ecosystem carbon stocks

Forest Ecology and Management

By:
, , ,
DOI: 10.1016/j.foreco.2013.07.042

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Abstract

Forested ecosystems contain the majority of the world’s terrestrial carbon, and forest management has implications for regional and global carbon cycling. Carbon stored in forests changes with stand age and is affected by natural disturbance and timber harvesting. We examined how harvesting and disturbance interact to influence forest carbon stocks over the Superior National Forest, in northern Minnesota. Forest inventory data from the USDA Forest Service, Forest Inventory and Analysis program were used to characterize current forest age structure and quantify the relationship between age and carbon stocks for eight forest types. Using these findings, we simulated the impact of alternative management scenarios and natural disturbance rates on forest-wide terrestrial carbon stocks over a 100-year horizon. Under low natural mortality, forest-wide total ecosystem carbon stocks increased when 0% or 40% of planned harvests were implemented; however, the majority of forest-wide carbon stocks decreased with greater harvest levels and elevated disturbance rates. Our results suggest that natural disturbance has the potential to exert stronger influence on forest carbon stocks than timber harvesting activities and that maintaining carbon stocks over the long-term may prove difficult if disturbance frequency increases in response to climate change.

Geospatial Extents

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Potential increases in natural disturbance rates could offset forest management impacts on ecosystem carbon stocks
Series title:
Forest Ecology and Management
DOI:
10.1016/j.foreco.2013.07.042
Volume
308
Year Published:
2013
Language:
English
Publisher:
Elsevier
Contributing office(s):
Southwest Biological Science Center
Description:
10 p.
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
178
Last page:
187
Country:
United States
State:
Minnesota
Other Geospatial:
Superior National Forest