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1·Air pollution is damaging 60% of Europe's prime wildlife sites in meadows, forests and heaths, according to a new report.

根据一个新的报告，空气污染正在破坏着欧洲野生生物在草地、森林及荒野60%的主要生境。

2·Heaths normally develop on poor sandy well-drained soils in temperate climates and are usually subclimax communities maintained by grazing burning and sometimes cutting.

正常情况下石楠灌丛生长在温带的贫瘠，含沙的或是排水良好的土壤上，放牧，焚烧和不时地砍伐通常使石楠灌丛亚顶极群落得以维持。