Ten golden rules for reforestation to optimize carbon sequestration, biodiversity recovery and livelihood benefits.

Urgent solutions to global climate change are needed. Ambitious tree-planting initiatives, many already underway, aim to sequester enormous quantities of carbon to partly compensate for anthropogenic CO emissions, which are a major cause of rising global temperatures. However, tree planting that is poorly planned and executed could actually increase CO emissions and have long-term, deleterious impacts on biodiversity, landscapes and livelihoods.

Natural and induced polyploidy in Acacia dealbata Link. and Acacia mangium Willd.

Seeds were obtained from seven natural populations of Acacia dealbata, three natural populations of A. mangium and a seed orchard of A. mangium, representing the natural range of the two species.