Ontology highlight
ABSTRACT:
SUBMITTER: Melillo JM
PROVIDER: S-EPMC4752559 | biostudies-other | 2016 Mar
REPOSITORIES: biostudies-other
Melillo Jerry M JM Lu Xiaoliang X Kicklighter David W DW Reilly John M JM Cai Yongxia Y Sokolov Andrei P AP
Ambio 20151016 2
Globally, 15.5 million km(2) of land are currently identified as protected areas, which provide society with many ecosystem services including climate-change mitigation. Combining a global database of protected areas, a reconstruction of global land-use history, and a global biogeochemistry model, we estimate that protected areas currently sequester 0.5 Pg C annually, which is about one fifth of the carbon sequestered by all land ecosystems annually. Using an integrated earth systems model to ge ...[more]