Agroforestry with N2-fixing trees: Sustainable development's friend or foe?
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Rosenstock, T.S., Tully, K.L., Arias-Navarro, C., Neufeldt, H., Butterbach-Bahl, K. and Verchot, L.V. 2014. Agroforestry with N2-fixing trees: Sustainable development's friend or foe? Current Opinion in Environmental Sustainability 6: 15-21.
Permanent link to cite or share this item: http://hdl.handle.net/10568/33916
Legume tree-based farming systems sit at a crucial nexus of agroecological sustainability. Their capacity to support microbial N2 fixation can increase soil nitrogen (N) availability and therefore improve soil fertility, crop yields, and support long-term stewardship of natural resources. However, increasing N availability oftentimes catalyzes the release of N into the surrounding environment, in particular nitrous oxide (N2O) — a potent greenhouse gas. We summarize current knowledge on the agroecological footprint of legume-based agroforestry and provide a first appraisal of whether the technology represents a pathway toward sustainable development or an environmental hazard.
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