Titlebook: Agroecology; Konrad Martin,Joachim Sauerborn Textbook 2013 Springer Science+Business Media Dordrecht 2013 Agriculture.Agroecology.Ecology.

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Origin and Development of Agriculture,ly 150,000–200,000 years ago. Just as two earlier representatives of the genus . (. and the ancestors of the .) had done before, groups of modern humans left their homeland to colonize other continents. This occurred between 50,000 and 70,000 years ago. The reasons for this migration, which only beg

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Production and Management of Livestock Resources,g from traditional pastoral grazing to factory farming using industrially produced feedstuff (Fig.6.1). The different systems are characterized by different levels of intensification and management, and are also accompanied by different consequences for the sustainability of the systems and the envi

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细胞学

WATER

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Anemia

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antenna

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Carcinogen

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