英语翻译Substitutes for a Land EthicWhen the Logic of

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Substitutes for a Land Ethic
土地伦理的替代品
When the Logic of history hungers for bread and we hand
out a stone,we are at pains to explain how much the stone resembles bread.I now describe some of the stones which serve in place of a land ethic.当历史的逻辑渴望面包而我们却拿出一块石头之时,我们无论怎么解释石头多么像面包也是白费力气.我现在来说说一些被用作土地伦理的石头.
One basic weakness in a conservation system based wholly
on economic motives is that most members of the land munity have no economic value.Wildflowers and songbirds are examples.Of the 22,000 higher plants and animals native to Wisconsin,it is doubtful whether more than 5 per cent can be sold,fed,eaten,or otherwise put to economic use.在完全基于经济动机的保护系统中,一个基本的弱点/缺陷是,陆地群落的大部分成员没有经济价值.野花和鸣禽就是例子.原产于美国威斯康星州的22000种高等植物和动物中,能否有超过5%的可用来出售、喂养、食用或者有其它经济用途,是很令人怀疑的.
Yet these creatures are members