doi: 10.1126/science.267.5201.1117.
Environmental and economic costs of soil erosion and conservation benefits
- PMID:17789193
- DOI: 10.1126/science.267.5201.1117
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Environmental and economic costs of soil erosion and conservation benefits
D Pimentel et al. Science..
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Abstract
Soil erosion is a major environmental threat to the sustainability and productive capacity of agriculture. During the last 40 years, nearly one-third of the world's arable land has been lost by erosion and continues to be lost at a rate of more than 10 million hectares per year. With the addition of a quarter of a million people each day, the world population's food demand is increasing at a time when per capita food productivity is beginning to decline.
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