The weather in the Amazon is more often dry nowadays and when it is, the world's biggest rainforest produces vast quantities of CO2. This may be the forest's death warrant, with serious consequences for the climate. Wageningen researchers see both signs of stress and a suprising degree of resilience.
A lot of water combined with heat and sunlight provide ideal conditions for luxuriant plant growth. This becomes apparent when rain suddenly becomes scarce, as it did in 2005, 2010 and 2015. The vegetation grew at a slower pace and there were more forest fires.
The forest remains a tropical rainforest
Drought causes problems for trees and other plants which are used to a humid environment. The crowns of trees thin out and some trees die off completely. The response of forests to more frequent droughts is surprising: the forest may change in the composition of species present but it remains tropical rainforest, with more or less the same amount of biomass and of sequestrated CO2.
Research chair group Meteorology and Air Quality
Ingrid van der Laan-Luijkx, a postdoc at the Meteorology and Air Quality chair group, can see such effects from Wageningen by studying the air quality above the Amazon. Van der Laan's lab is working with Brazilian researchers who take regular air samples from a small plane at different altitudes above the Amazon.
Want to know more?
Publications about the Amazon
Greenhouse gas emissions along a peat swamp forest degradation gradient in the Peruvian Amazon
Mitigation and Adaptation Strategies for Global Change (2018). - ISSN 1381-2386 - p. 1 - 19.
Monoterpene chemical speciation in a tropical rainforest
Atmospheric Chemistry and Physics 18 (2018)5. - ISSN 1680-7316 - p. 3403 - 3418.
Species Distribution Modelling: Contrasting presence-only models with plot abundance data
Scientific Reports 8 (2018)1. - ISSN 2045-2322
Parallel diversifications of Cremastosperma and mosannona (annonaceae), tropical rainforest trees tracking neogene upheaval of South America
Royal Society Open Science 5 (2018)1. - ISSN 2054-5703
Redox sensing within the genus Shewanella
Frontiers in Microbiology 8 (2018)JAN. - ISSN 1664-302X
How People Domesticated Amazonian Forests
Frontiers in Ecology and Evolution 5 (2018). - ISSN 2296-701X - 21 p.
Response to Comment on "persistent effects of pre-Columbian plant domestication on Amazonian forest composition"
Science 358 (2017)6361. - ISSN 0036-8075 - 2 p.
The role of fertile anthropogenic soils in the conservation of native and exotic agrobiodiversity in Amazonian homegardens
Agroforestry Systems (2017). - ISSN 0167-4366 - 12 p.
Socio-ecological analysis of multiple-use forest management in the Bolivian Amazon
University. Promotor(en): Frits Mohren, co-promotor(en): Marielos Pena Claros; N. Ascarrunz. - Wageningen : Wageningen University - ISBN 9789463436557 - p.
A spatiotemporal geostatistical hurdle model approach for short-term deforestation prediction
Spatial Statistics 21 (2017)part A. - ISSN 2211-6753 - p. 304 - 318.