Forestry Hanover Seminar Series presents: Erika Marin-Spiotta, Dept. of Geography, UW-Madison
Date: January 21, 2014
Location: 225 Natural Resources Bldg.
Forestry Hanover Seminar Series presents:
Challenges predicting successional trajectories during post-agricultural reforestation in the tropics
Presented by Erika Marin-Spiotta
Department of Geography
University of Wisconsin-Madison
4 p.m. (Refreshments at 3:50 p.m.)
Reforestation of former agricultural lands in the tropics provides opportunities for biodiversity conservation and for carbon sequestration in regrowing biomass and in soils. The type and intensity of former human land use can influence the successional trajectories of post-agricultural secondary forests, with unpredictable consequences for species composition and carbon storage. Here I explore challenges in measuring and predicting above and belowground responses to changes in land use and land cover, focusing on forest reestablishment. I present my group’s work in secondary forests ranging in age from 10-90 years old on former pastures and sugar cane in the Caribbean. Different ecosystem compartments respond at very different rates to reforestation, making it difficult to forecast changes in forest ecosystem processes at the regional scale. Quantifying temporal and spatial heterogeneity in carbon dynamics in reforested landscapes is important for improved understanding of feedbacks between the biosphere and climate.