Intra-annual variation of soil respiration across four heterogeneous longleaf pine forests in the southeastern United States

Soil respiration (RS) is one of the largest fluxes of net ecosystem exchange and is related to both soil climate and vegetatively driven substrate supply at various spatial and temporal scales. Relationships between the intra-annual variation in RS and abiotic and biotic variables were examined across diverse longleaf pine (Pinus palustris Mill.) forests to better understand factors related to RS in these low density, spatially heterogeneous...