Urban ecology
Urban ecology
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作者：
P. Moore
在你阅读这期《自然》杂志的一个小时里，超过3,000英亩的热带雨林将被摧毁。根据联合国粮食及农业组织的统计，在世纪之交，大约有1600万平方公里的雨林，到1975年减少到940万平方公里，减少了40%;目前的损失率保守估计是每年2700万英亩，或每分钟50英亩。世界热带雨林的这场日益加剧的悲剧是一个经常被讲述的故事（最近两篇强有力的文章是由洛夫乔伊和
IN the hour you might devote to reading this issue of Nature, more than 3,000 acres of tropical rainforest will be destroyed. According to the Food and Agriculture Organization of the United Nations, there were about 16 million km2 of rainforest around the turn of the century, which by 1975 was reduced to 9.4 million km2, representing a 40% reduction; a conservative estimate of the current loss rate is 27 million acres per annum, or 50 acres per minute. This mounting tragedy of the world's rainforests is an oft-told tale (two recent and powerful articles are by Lovejoy and