Browse wiki
From CSDMS
The degree to which subsurface architectur … The degree to which subsurface architecture – pores space and connectivity—fluctuates and/or evolves is largely ignored in predictions of how Earth’s critical zone can respond to changes in biotic processes (direct and indirect) in the Anthropocene. Specifically, changes in microbial carbon decomposition rates and root growth can influence the generation of macropores, whose porosity accounts for only ~2% of the subsurface but accounts for ~70% of water transmitted to depth. We argue that the community needs to consider that changes in the subsurface structure throttles the partitioning of water, and thus the fluxes of carbon, nutrients, and weathering products. Using empirical data and modeling we explore this connectivity between biotic processes (e.g., root growth, carbon turn over) and subsurface pore structure from the pedon to the continental scale, quantifying the impact of this interaction on stocks and fluxes of water and nutrients. We then examine how over longer time periods, this change in hydrologic partitioning can influence the depth to which reaction fronts propagate into the subsurface and the role in which these changes could influence the trajectory of landscape evolution.nce the trajectory of landscape evolution. +
United States +
pamela.sullivan@oregonstate.edu +
CSDMS 2020: Linking Ecosphere and Geosphere +
Pamela +
Oregon State University +
Sullivan +
CSDMS_Keynote_20200519.pdf +
Invited oral presentation +
Oregon +
Are rate changes in biotic processes altering subsurface hydrologic partitioning in the Anthropocene? +
Y_gJLjn1uAg +
United States +
Creation date"Creation date" is a predefined property that corresponds to the date of the first revision of a subject and is provided by <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
02:22:04, 23 September 2019 +
Has query"Has query" is a predefined property that represents meta information (in form of a <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://www.semantic-mediawiki.org/wiki/Subobject">subobject</a>) about individual queries and is provided by <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
Last editor is"Last editor is" is a predefined property that contains the page name of the user who created the last revision and is provided by <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
22:34:03, 11 June 2025 +
