Get the CIFOR publications update

CIFOR publishes over 400 publications every year on forests and climate change, landscape restoration, rights, forest policy, agroforestry and much more in multiple languages.

The impact of climate changes during the Holocene on vegetation in northern French Guiana

The impact of climate changes during the Holocene on vegetation in northern French Guiana

The impact of climatic changes that occurred during the last glacial maximum and the Holocene on vegetation changes in the Amazon Basin and the Guiana Shield are still widely debated. The aim of our study was to investigate whether major changes in vegetation (i.e. transitions between rainforests and C4 savannas) occurred in northern French Guiana during the Holocene. We measured variations in the d13C of soil organic matter at eight sites now occupied by forest or savannah. The forest sites were selected to cover two regions (forest refugia and peneplains) which are thought to have experienced different intensities of disturbance during the latest Pleistocene and the Holocene. We found that none of the forest sites underwent major disturbances during the Holocene, i.e. they were not replaced by C4 savannahs or C4 forest savannahs for long periods. Our results thus suggest that tropical rainforests in northern French Guiana were resilient to drier climatic conditions during the Holocene. Nevertheless, geographical and vertical variations in the 13C of SOM were compatible with minor changes in vegetation, variations in soil processes or in soil physical properties.

Authors: Freycon, V.; Krencker, M.; Schwartz, D.; Nasi, R.; Bonal, D.

Topic: vegetation,soil organic matter

Geographic: Amazonia,new Guinea

Publication Year: 2010

ISSN: 0033-5894

Source: Quaternary Research 73: 220-225

DOI: 10.1016/j.yqres.2009.11.007

Altmetric score:

Export Citation

Related viewing


CIFOR website usability survey

We're conducting research on our website and we'd love to hear from you about your experience on This will help us make improvements and prioritize new features. The survey should only take 5 minutes, and your responses are completely anonymous.

If you have any questions about the survey, please email us:

We really appreciate your input!

Start survey
I don’t want to participate
Remind me later