A landscape ecology assessment of land-use change on the Great Plains-Denver (CO, USA) metropolitan edge.
A landscape ecology assessment of land-use change on the Great Plains-Denver (CO, USA) metropolitan edge.
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大平原-丹佛（美国科罗拉多州）大都市边缘土地利用变化的景观生态学评估。
DOI：
10.1007/s10113-018-1284-z
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发表时间：
2018
影响因子：
4.2
通讯作者：
Tello,Enric
中科院分区：
文献类型：
--
作者：
Marull,Joan;Cunfer,Geoff;Sylvester,Kenneth;Tello,Enric
不管是好是坏，在世界上那些农业广泛、牲畜数量增加和城市扩张的地区，物种丰富度和生态系统服务的维持不能仅仅依赖于受保护的自然遗址。它们能否依赖于一个拥有自身相关生物多样性的文化景观网络？我们分析了土地覆被变化对景观生态格局和过程的影响，这些景观生态格局和过程维持了大平原丹佛大都市边缘与农田-草地景观相关的鸟类物种丰富度。我们的目的是评估大平原的农田-草地镶嵌保持农田绿色带在大都市区边缘的鸟类生物多样性维护的潜在贡献。我们提出了一个定量的景观生态学评估土地覆盖变化（1930-2010年）经历了五个大平原县在科罗拉多。一些景观指标评估土地覆盖模式的多样性及其对生态连通性指数的影响。这些指标适用于从航空照片和卫星图像绘制的历史土地覆盖图和数据集。结果表明，农田-草地镶嵌，连接大都市边缘与周围的栖息地庇护在较少的人类干扰的地区提供了一个异质的土地基质是一个高鸟类物种丰富度存在。他们还建议，在大都市边缘附近保留多功能农田-草地绿色带，可以提供重要的生态系统服务，补充传统的保护政策。我们的地图和指标可用于选择某些类型的景观格局和优先领域，生物多样性保护工作和土地使用规划可以集中在这些领域。
For better or worse, in those parts of the world with a widespread farming, livestock rising, and urban expansion, the maintenance of species richness and ecosystem services cannot depend only upon protected natural sites. Can they rely on a network of cultural landscapes endowed with their own associated biodiversity? We analyze the effects of land-cover change on landscape ecological patterns and processes that sustain bird species richness associated to cropland-grassland landscapes in the Great Plains-Denver metropolitan edge. Our purpose is to assess the potential contribution to bird biodiversity maintenance of Great Plain’s cropland-grassland mosaics kept as farmland green belts in the edge of metropolitan areas. We present a quantitative landscape ecology assessment of land-cover changes (1930–2010) experienced in five Great Plains counties in Colorado. Several landscape metrics assess the diversity of land-cover patterns and their impact on ecological connectivity indices. These metrics are applied to historical land-cover maps and datasets drawn from aerial photos and satellite imagery. The results show that the cropland-grassland mosaics that link the metropolitan edge with the surrounding habitats sheltered in less human-disturbed areas provide a heterogeneous land matrix were a high bird species richness exists. They also suggest that keeping multifunctional farmland-grassland green belts near the edge of metropolitan areas may provide important ecosystem services, supplementing traditional conservation policies. Our maps and indicators can be used for selecting certain types of landscape patterns and priority areas on which biodiversity conservation efforts and land-use planning can concentrate.