By 2020, current food production methods will be unable to meet the food demands of the growing world population. As high-productivity lands become more scarce and food demand increases, people will increase the cultivation of lands that were once considered too fragile for intensive use. Large...

Meeting food and livelihood security needs in developing countries will require the conservation and enhancement of natural resources that contribute to agricultural production. Chief among the resources to be sustainably managed are soils and forests. Once forests fall, what land-use patterns...