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首页> 外文期刊>Ecosystem Health >The consequences of landscape change on ecological resources: An assessment of the United States mid-Atlantic region, 1973-1993
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The consequences of landscape change on ecological resources: An assessment of the United States mid-Atlantic region, 1973-1993

机译：景观变化对生态资源的影响：对美国中大西洋地区的评估，1973-1993年

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Spatially explicit identification of changes in ecological conditions over large areas is key to targeting and prioritizing areas for environmental protection and restoration by managers at watershed, basin, and regional scales, A critical limitation to this point has been the development of methods to conduct such broad-scale assessments. Field-based methods have proven to be too costly and too inconsistent in their application to make estimates of ecological conditions over large areas. New spatial data derived from satellite imagery and other sources, the development of statistical models relating landscape composition and pattern to ecological endpoints, and geographic information systems (GIs) make it possible to evaluate ecological conditions at multiple scales over broad geographic regions, In this study, we demonstrate the application of spatially distributed models for bird habitat quality and nitrogen yield to streams to assess the consequences of landcover change across the mid-Atlantic region between the 1970s and 1990s. Moreover, we present a way to evaluate spatial concordance between models related to different environmental endpoints. Results of this study should help environmental managers in the mid-Atlantic region target those areas in need of conservation and protection.
机译：在空间上明确识别大范围生态状况的变化，是流域，流域和区域规模的管理人员确定环境保护和恢复区域的重点并确定其优先级的关键。对此，关键的局限性在于开发了进行此类广泛保护的方法。规模评估。实践证明，基于现场的方法成本高昂，而且在应用中也不一致，无法估算大面积的生态状况。从卫星图像和其他来源获得的新空间数据，将景观组成和格局与生态终点相关的统计模型的发展，以及地理信息系统（GI），使得有可能在广阔的地理区域内以多种尺度评估生态状况。 ，我们证明了鸟类栖息地质量和氮产量的空间分布模型在河流中的应用，以评估1970年代至1990年代整个大西洋中部地区的土地覆被变化的后果。此外，我们提出了一种方法来评估与不同环境端点相关的模型之间的空间一致性。这项研究的结果应有助于大西洋中部地区的环境管理人员将需要保护和保护的地区作为目标。

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