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20世纪 30年代 ,美国大平原地区沙尘暴肆虐 ,其中受害最严重的是位于大平原南部 ,面积约 1 0 0 0万英亩的区域。 30年代的尘暴是农场主自 1 870年以来掠夺性开发草地的恶果 ,是迄今美国历史上最骇人听闻的生态悲剧 ,被人称为“历史上人为的三大生态灾难之一”(第 4页 )。从 30?
In the 1930s, the sandstorms in the Great Plains of the United States were rampant. The worst hit was the area in the southern Great Plains, covering an area of about 10 million acres. The dust storms of the 1930s were the culprit of the predators who exploited the grasslands predatoryly since 1870 and are by far the most horrendous ecological tragedy in the history of the United States, known as “one of the three man-made major ecological catastrophes in history” (p. 4) . From 30?