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Peat accretion histories during the past 6,000 years in marshes of the Sacramento-San Joaquin delta, CA, USA

Estuaries and Coasts

By:
, ,
DOI: 10.1007/s12237-009-9202-8

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Abstract

The purpose of this study was to determine how vertical accretion rates in marshes vary through the millennia. Peat cores were collected in remnant and drained marshes in the Sacramento-San Joaquin Delta of California. Cubic smooth spline regression models were used to construct age-depth models and accretion histories for three remnant marshes. Estimated vertical accretion rates at these sites range from 0.03 to 0.49 cm year-1. The mean contribution of organic matter to soil volume at the remnant marsh sites is generally stable (4.73% to 6.94%), whereas the mean contribution of inorganic matter to soil volume has greater temporal variability (1.40% to 7.92%). The hydrogeomorphic position of each marsh largely determines the inorganic content of peat. Currently, the remnant marshes are keeping pace with sea level rise, but this balance may shift for at least one of the sites under future sea level rise scenarios.

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Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Peat accretion histories during the past 6,000 years in marshes of the Sacramento-San Joaquin delta, CA, USA
Series title:
Estuaries and Coasts
DOI:
10.1007/s12237-009-9202-8
Volume
32
Issue:
5
Year Published:
2009
Language:
English
Publisher:
Springer
Contributing office(s):
California Water Science Center
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Estuaries and Coasts
First page:
871
Last page:
892
Number of Pages:
22
Country:
United States
State:
California