Contributions of woody and herbaceous vegetation to tropical savanna ecosystem productivity: a quasi-global estimate
To estimate the relative contributions of woody and herbaceous vegetation to savanna productivity, we measured the13C/12C isotopic ratios of leaves from trees, shrubs, grasses and the surface soil carbon pool for 22 savannas in Australia, Brazil and Ghana covering the full savanna spectrum ranging from almost pure grassland to closed woodlands on all three continents. All trees and shrubs sampled were of the C3 pathway and all grasses of the C4 pathway with the exception of Echinolaena inflexa...[Show more]
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