Journal
CURRENT OPINION IN ENVIRONMENTAL SUSTAINABILITY
Volume 6, Issue -, Pages 15-21Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.cosust.2013.09.001
Keywords
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Funding
- CGIAR research program on Climate Change, Agriculture and Food Security
- CGIAR research program on Water, Land, and Ecosystems
- CGIAR research program on Forests, Trees and Agroforesty
- UN FAO [49659]
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Legume tree-based farming systems sit at a crucial nexus of agroecological sustainability. Their capacity to support microbial N-2 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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