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Ecosystem Processes and Biogeochemical Cycles in Secondary Tropical Forest Succession

Secondary tropical forests that are in a state of regeneration following clearing for agriculture are now more abundant than primary forests. Yet, despite their large spatial extent and important role in the global carbon (C) cycle, secondary tropical forests are understudied, which challenges our ability to predict how tropical landscapes will respond to future disturbance and global change. We summarize research advances on alterations to C and nutrient dynamics during reforestation and how these are influenced by ecosystem state factors. During forest succession, aboveground biomass stocks and litter fluxes increase in a predictable way, but patterns in soil C dynamics are highly variable. The heterogeneous response of nutrients to reforestation is influenced by multiple factors, including losses incurred during prior land use and management. In contrast to primary tropical forests, where productivity is often limited by rock-derived nutrients, secondary forest growth may be more limited by nutrients f...

Autoren:   Jennifer S. Powers; Erika Marín-Spiotta
Journal:   Annual Review of Ecology, Evolution, and Systematics
Band:   48
Ausgabe:   1
Jahrgang:   2017
Seiten:   497
DOI:   10.1146/annurev-ecolsys-110316-022944
Erscheinungsdatum:   06.11.2017
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