1850年至1890年间，随着欧洲集约化农业方法在世界范围内的推广，数百万公顷的森林和林地被砍伐殆尽。
Millions of hectares of forest and woodland fell before the newcomers' axes between 1850 and 1890, as intensive European farming methods expanded across the world.
自从一万年前农业开始发展以来，已有三分之一的树木被砍伐殆尽。
As much as a third of the total tree cover has been lost since agriculture began some 10,000 years ago.
地球上大约一半的原始森林被砍伐殆尽。
About half the Earth's original forest area has been cleared.
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