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首页> 外文期刊>Remote Sensing of Environment: An Interdisciplinary Journal >Remote sensing of land-cover change and landscape context of the National Parks: A case study of the Northeast Temperate Network
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Remote sensing of land-cover change and landscape context of the National Parks: A case study of the Northeast Temperate Network

机译:国家公园土地覆盖变化与景观背景的遥感研究-以东北温带网为例

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National park units and protected areas face critical management challenges because of changing land-cover types and variability of landscape contexts within and adjacent the park boundaries. In this study we developed and implemented a multi-scale protocol for detecting and monitoring land-cover change in and adjacent to National Parks and ten segments of the Appalachian National Scenic Trail (AT) in the northeastern United States. We used Landsat imagery from 1970 to 2002 and recent ground-based photography to evaluate changes within park boundaries and within 0.5. 1, and 5 km buffers. The study concluded that all of the studied park units, except one segment of AT in Maine, experienced increases of urban land and declines of forest cover in the immediately adjacent areas and extended buffer zones. Over 30 years and across all parks and trail segments, urban land increased 172% and 181% within 0.5 and 1 km, respectively, of the park boundary or trail centerline. Over the same time period, forested area decreased by 5% and 6% within 0.5 and 1 km, respectively, of the park boundary or trail centerline, with more loss of forest near the parks (18%) than the trail segments (2%). This study provided baseline data demonstrating landcover alteration over the past three decades and a foundation for a land-cover change and landscape context protocol suitable for monitoring future changes of National Parks and protected areas.
机译:国家公园单位和保护区面临严峻的管理挑战,因为土地覆盖类型的变化以及公园边界内和附近的景观环境的变化。在这项研究中,我们开发并实施了一种多尺度协议,用于检测和监视国家公园以及美国东北部阿巴拉契亚国家风景名胜区(AT)的十个路段及其附近的土地覆盖变化。我们使用1970年至2002年的Landsat影像和最近的地面摄影来评估公园范围内和0.5以内的变化。 1和5公里的缓冲区。研究得出的结论是,除缅因州AT的一部分外,所有研究的公园单位在紧邻的地区和扩展的缓冲区内都经历了城市土地的增加和森林覆盖率的下降。在过去的30年中,在所有公园和步道段中,城市土地分别在公园边界或步道中心线的0.5公里和1公里之内增长了172%和181%。在同一时期,在距公园边界或步道中心线0.5公里和1公里以内的森林面积分别减少了5%和6%,公园附近的森林损失(18%)比步道段(2%)多)。这项研究提供了表明过去三十年土地覆盖变化的基准数据,并为适合监测国家公园和保护区未来变化的土地覆盖变化和景观背景协议奠定了基础。

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