Environmental and economic costs of soil erosion and conservation benefits.
نویسندگان
چکیده
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.
منابع مشابه
Factors Affecting the Adoption of Conservation Measures in Soil Erosion Control: A Case of Orchard Lands of Chehel-Chay Watershed
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ورودعنوان ژورنال:
- Science
دوره 267 5201 شماره
صفحات -
تاریخ انتشار 1995