Poster's note : this agricultural biodiversity strategy offers obvious potential for adaptation to land use CDR
http://science.sciencemag.org/content/351/6272/450 How can higher-yield farming help to spare nature? Ben Phalan1,*, Rhys E. Green1,2, Lynn V. Dicks1,Graziela Dotta3, Claire Feniuk1, Anthony Lamb1,Bernardo B. N. Strassburg4,5, David R. Williams1,Erasmus K. H. J. zu Ermgassen1, Andrew Balmford1 [email protected] Science 29 Jan 2016: Vol. 351, Issue 6272, pp. 450-451 DOI: 10.1126/science.aad0055 Summary Expansion of land area used for agriculture is a leading cause of biodiversity loss and greenhouse gas emissions, particularly in the tropics. One potential way to reduce these impacts is to increase food production per unit area (yield) on existing farmland, so as to minimize farmland area and to spare land for habitat conservation or restoration. There is now widespread evidence that such a strategy could benefit a large proportion of wild species, provided that spared land is conserved as natural habitat (1). However, the scope for yield growth to spare land by lowering food prices and, hence, incentives for clearance (“passive” land sparing) can be undermined if lower prices stimulate demand and if higher yields raise profits, encouraging agricultural expansion and increasing the opportunity cost of conservation (2, 3). We offer a first description of four categories of “active” land-sparing mechanisms that could overcome these rebound effects by linking yield increases with habitat protection or restoration (table S1). The effectiveness, limitations, and potential for unintended consequences of these mechanisms have yet to be systematically tested, but in each case, we describe real-world interventions that illustrate how intentional links between yield increases and land sparing might be developed. -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/d/optout.
