To give just one example of how the two can work together, producing more crops per acre can both help poor farmers and preserve existing forests. (scientificamerican.com)
Take a look at the graphic, and then let us know what you think: what can we do to protect existing forest land, and even expand it? (insteading.com)
How robust is this estimation of global carbon uptake rates in existing forests? (journals.plos.org)