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Inspire Session

Session: : Tropical Forests & Global Change: Biogeochemical Responses and Opportunities for Cross-Sites Comparisons

INS 22-7 - Changing biogeochemical cycling across secondary tropical forest succession

Wednesday, August 9, 2023
10:00 AM – 11:30 AM PDT
Location: C123
Increasing efforts seek to resolve variation in tropical forest biogeochemistry across space, but less is known about variation across time and what indirect measurements can reflect ecosystem nutrient limitation. Tropical forests—and likely biogeochemical cycling—change rapidly as they recover from high rates of disturbance and nutrient losses. In our large-scale nitrogen and phosphorus fertilization experiment over secondary succession in Panama, we found shifting patterns of nutrient limitation, from nitrogen to phosphorus to no limitation on biomass growth. We discuss which soil properties and plant strategies can indicate aboveground patterns in nutrient limitation, and possible generalizations to other tropical forests.