碧壁纸
你的位置:首页>>桌面壁纸>>风景壁纸>>扬恩·亚瑟空中摄影奇景 北美篇>>上帝之眼 Yann Arthus Bertrand 扬恩 亚瑟空中摄影奇景壁纸北美篇 鸟瞰美国 爱达荷瀑布市附近的电力线图片壁纸

上帝之眼 Yann Arthus Bertrand 扬恩 亚瑟空中摄影奇景壁纸北美篇 鸟瞰美国 爱达荷瀑布市附近的电力线图片壁纸

上帝之眼 Yann Arthus Bertrand 扬恩 亚瑟空中摄影奇景壁纸北美篇 鸟瞰美国 爱达荷瀑布市附近的电力线图片壁纸壁纸 扬恩·亚瑟空中摄影奇景 北美篇壁纸 扬恩·亚瑟空中摄影奇景 北美篇图片 扬恩·亚瑟空中摄影奇景 北美篇素材 风景壁纸 风景图库 风景图片素材桌面壁纸鸟瞰美国:爱达荷瀑布市附近的电力线,The population of the United States is concentrated on its Atlantic and Pacific coasts, leaving the vast lands in between almost empty by comparison. The Great Plains and the Rocky Mountains are exploited to produce energy and food for the coastal inhabitants. Thus, in Idaho, north of the Rocky Mountains, the Snake River has been divided up by dams, which produce electricity and retain water to irrigate the rich surrounding farmland. The dams are built, and the land farmed, on a large, highly mechanized scale by big companies or cooperatives. Paradoxically, these projects recall the unlamented kolkhoz (collective farms) of the former Soviet Union. High yields and small workforces ensure that America is competitive and make it the world’s biggest cereal exporter, dominating the market—a fact the country does not hesitate to use as a political weapon.
您的显示器分辨率为:
请点击以下合适的链接进行下载
收藏
分享
设置
手机壁纸
其他壁纸
 
专题导航
关于我们 | 版权声明 | 联系我们 | 工具箱 | 友情链接 | 网站地图 | 网站帮助 | 意见建议
版权所有2007-2010 bbzhi.com 碧壁纸 粤ICP备09178684号-8 QQ:184114998 Email:bbzhi.com#gmail.com