期刊
SCIENCE
卷 302, 期 5649, 页码 1356-1359出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1088579
关键词
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An appreciation of the dynamism of the links between soil resources and society provides a platform for examining food security over the next 50 years. Interventions to reverse declining trends in food security must recognize the variable resilience and sensitivity of major tropical soil types. In most agroecosystems, declining crop yield is exponentially related to loss of soil quality. For the majority smallholder (subsistence) farmers, investments to reverse degradation are primarily driven by private benefit, socially or financially. Tragedy of the commons scenarios can be averted by pragmatic local solutions that help farmers to help themselves.
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