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The American scientist, explorer, and conservationist John Wesley Powell (1834–1901) represents, in many ways, a counter to 19th-century imperialism in the arid West: an approach to westward expansion that was more sensitive to failure and more eager to see the West secured in the hands of a self-organized agrarian community. Toward that end he sponsored a mapping project to show how settlement might be based on watershed alignments and conserve the vital resources of the region. That projects is still relevant to nations that are trying to understand how to govern their relations with the natural environment.  相似文献   

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