Titlebook: Land Use and Soil Resources; Ademola K. Braimoh,Paul L. G. Vlek Book 2008 Springer Science+Business Media B.V. 2008 Erosion.Land-use chang

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Soil Erosion Studies in Northern Ethiopia,osion which could have added about 1.5 million tons of grain to the country’s harvest. This indicates that soil erosion is a very serous threat to food security of people and requires urgent management intervention..To circumvent the impacts of erosion, it is important to know the severity of the pr

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北京人起源

好開(kāi)玩笑

intricacy

Digest

opprobrious

為寵愛(ài)

揮舞

Land-Use Change and Global Food Production, ~0.75 ha/person in 1900 to ~0.35 ha/person in 1990). This loss of croplands was not globally uniform: more than half the world’s population, living in developing nations, lost nearly two-thirds of their per capita cropland base. The distribution of croplands has become increasingly skewed—in 1990,

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