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Influences of climate and life on hillslope sediment transport

2019; Geological Society of America; Volume: 47; Issue: 5 Linguagem: Inglês

10.1130/g45305.1

1943-2682

Paul Richardson, J. Taylor Perron, Naomi D. Schurr,

Soil erosion and sediment transport

Research Article| March 21, 2019 Influences of climate and life on hillslope sediment transport Paul W. Richardson; Paul W. Richardson 1Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA Search for other works by this author on: GSW Google Scholar J. Taylor Perron; J. Taylor Perron 1Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA Search for other works by this author on: GSW Google Scholar Naomi D. Schurr Naomi D. Schurr 1Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA Search for other works by this author on: GSW Google Scholar Author and Article Information Paul W. Richardson 1Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA J. Taylor Perron 1Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA Naomi D. Schurr 1Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA Publisher: Geological Society of America Received: 21 Jun 2018 Revision Received: 16 Nov 2018 Accepted: 10 Feb 2019 First Online: 21 Mar 2019 Online Issn: 1943-2682 Print Issn: 0091-7613 © 2019 Geological Society of America Geology (2019) 47 (5): 423–426. https://doi.org/10.1130/G45305.1 Article history Received: 21 Jun 2018 Revision Received: 16 Nov 2018 Accepted: 10 Feb 2019 First Online: 21 Mar 2019 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Paul W. Richardson, J. Taylor Perron, Naomi D. Schurr; Influences of climate and life on hillslope sediment transport. Geology 2019;; 47 (5): 423–426. doi: https://doi.org/10.1130/G45305.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Hillslopes constitute the majority of Earth's land surface area and dominate the supply of sediment to rivers. Hillslope sediment transport is commonly modeled with a rate law that depends on slope and a rate coefficient, D, that is understood to represent the intensity of transport mechanisms. Although many transport mechanisms are related to water and biota, it is unclear whether D varies predictably with climate and life. We compiled previous estimates of D from around the world and also made new estimates for additional sites. The compilation reveals an overall trend in which D increases strongly with increasing moisture among relatively dry sites and less strongly with increasing moisture among relatively wet sites. Vegetation type has a secondary effect on D among drier sites, with D increasing from deserts to grasslands to forests, but not among wetter sites. These trends suggest that the establishment of life in a landscape substantially accelerates soil creep, whereas differences in biological communities among sites with abundant moisture have a relatively small effect on creep. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.