Stable carbon isotope of black carbon in lake sediments as an indicator of terrestrial environmental changes: An evaluation on paleorecord from Daihai Lake, Inner Mongolia, China

2013 ◽  
Vol 347 ◽  
pp. 123-134 ◽  
Author(s):  
Xu Wang ◽  
Linlin Cui ◽  
Jule Xiao ◽  
Zhongli Ding
Keyword(s):  
Lake Sediments ◽  
Black Carbon ◽  
Carbon Isotope ◽  
Inner Mongolia ◽  
Environmental Changes ◽  
Stable Carbon Isotope ◽  
Stable Carbon ◽  
Daihai Lake

Stable carbon isotope biogeochemistry of propionate and acetate in methanogenic soils and lake sediments

2014 ◽  
Vol 73 ◽  
pp. 1-7 ◽  
Author(s):  
R. Conrad ◽  
P. Claus ◽  
A. Chidthaisong ◽  
Y. Lu ◽  
A. Fernandez Scavino ◽  
...  
Keyword(s):  
Lake Sediments ◽  
Carbon Isotope ◽  
Stable Carbon Isotope ◽  
Stable Carbon

Experimental studies on the stable carbon isotope biogeochemistry of acetate in lake sediments

2010 ◽  
Vol 41 (1) ◽  
pp. 22-30 ◽  
Author(s):  
Verena B. Heuer ◽  
Martin Krüger ◽  
Marcus Elvert ◽  
Kai-Uwe Hinrichs
Keyword(s):  
Lake Sediments ◽  
Carbon Isotope ◽  
Stable Carbon Isotope ◽  
Experimental Studies ◽  
Stable Carbon

Assessing the Scale of Prehistoric Human Impact in the Neotropics Using Stable Carbon Isotope Analyses of Lake Sediments: A Test Case From Costa Rica

2009 ◽  
Vol 20 (1) ◽  
pp. 120-133 ◽  
Author(s):  
Chad S. Lane ◽  
Sally P. Horn ◽  
Zachary P. Taylor ◽  
Claudia I. Mora
Keyword(s):  
Costa Rica ◽  
Population Growth ◽  
Lake Sediments ◽  
Human Impact ◽  
Carbon Isotope ◽  
Stable Carbon Isotope ◽  
Test Case ◽  
Stable Carbon ◽  
Human Disturbances ◽  
Sediment Profiles

AbstractAnalyses of pollen and other terrestrial microfossils in sediment profiles from neotropical lakes can complement and extend archaeological studies by documenting the timing of prehistoric human disturbances within watersheds. However, assessing the scale of prehistoric human impact from sedimentary microfossil assemblages alone is often difficult. We explore here the utility of combining stable carbon isotope (δ13C) analyses of lake sediments and isotopie mixing models to improve our ability to gauge the extent of prehistoric human disturbance recorded in sediment profiles. Our test case involves the analysis o f a sediment core from Laguna Bonillita on the central Caribbean slope of Costa Rica that spans approximately the last 2,700 calendar years. Variations in the δ13C values of the Laguna Bonillita sediments suggest that human population growth and environmental impacts in the watershed were at their maximum ~cal yr 300 B.C. This finding is in keeping with archaeological evidence of rapid regional population growth at this time but differs from initial interpretations of the sediment record that were based on pollen and charcoal analyses alone. We believe that the use of stable carbon isotope data from sediment profiles can improve estimates of the scale of prehistoric human impact and in doing so improve the contributions of paleoecological research to archaeology.

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