C4 Plant Productivity and Climate-CO2 Variations in South-Central Texas during the Late Quaternary

  title={C4 Plant Productivity and Climate-CO2 Variations in South-Central Texas during the Late Quaternary},
  author={Lee Nordt and Thomas W. Boutton and John S. Jacob and Rolfe D. Mandel},
  journal={Quaternary Research},
  pages={182 - 188}
Abstract A continuous record of organic carbon δ13C from a buried soil sequence in south-central Texas demonstrates: 1) strong coupling between marine and adjacent continental ecosystems in the late Pleistocene as a result of glacial meltwater entering the Gulf of Mexico and 2) ecosystem decoupling in the Holocene associated with a reduction of meltwater and a shift in global circulation patterns. In the late Pleistocene, reduction in C4 plant productivity correlates with two well-documented… 
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