1 电子书 Marja A. van Staalduinen
Marinus J.A. Werger & Marja A. van Staalduinen: Eurasian Steppes. Ecological Problems and Livelihoods in a Changing World
Steppes form one of the largest biomes. Drastic changes in steppe ecology, land use and livelihoods came with the emergence, and again with the collapse, of communist states. Excessive ploughing and …
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