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Restoring lowland heath through small-scale turf removal at Cooper’s Hill Nature Reserve, Bedfordshire

机译:在贝德福德郡库珀山自然保护区通过小规模除草来恢复低地荒地

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At Cooper’s Hill Nature Reserve, Bedfordshire, England, areas of mature heather Calluna vulgaris have been lost and replaced by dense grassy swards. We hypothesised that any heather seedlings would have difficulty competing with the grasses and tested this by removing the turf to expose the nutrient-poor sandy soil in seven small plots across the reserve. These plots, together with control areas, were monitored annually to determine which vegetation types would re-establish. Five plots also received seed-rich brash (cut heather) on half of each plot to determine whether additional seeding of stripped areas was required. Analysis of the data collected over the first five years indicates that the technique increased the amount of heather seedlings establishing, as measured by percentage heather cover. Adding seed rich brash had no effect, implying a good amount of viable heather seed is present in the soil at this site. Grasses are also establishing in the stripped areas but are not dominating the plots.
机译:在英格兰贝德福德郡的库珀山自然保护区,成熟的石南花寻常菜卡卢纳(Calluna)杂草丛生的地区已经消失,被茂密的草皮代替。我们假设,任何石楠幼苗都难以与草竞争,并通过在整个保护区的七个小块土地上移开草皮以暴露营养不良的沙质土壤来进行测试。每年对这些地块和控制区进行监测,以确定将要重建的植被类型。在每个样地的一半上,五个样地还接受了种子丰富的硬皮(切石南花),以确定是否需要对剥离区域进行其他播种。对前五年收集的数据的分析表明,该技术增加了石楠幼苗的数量,以石楠覆盖率衡量。添加富含种子的花椒没有任何作用,这意味着该位置的土壤中存在大量可行的希瑟种子。在被剥夺的地区也种草,但并不占主导地位。

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