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首页> 外文期刊>Regional Environmental Change >Land-cover changes in and around a National Park in a mountain landscape in the Pyrenees
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Land-cover changes in and around a National Park in a mountain landscape in the Pyrenees

机译：比利牛斯山脉山地国家公园内外的土地覆被变化

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摘要

The current state of Mediterranean mountain areas has been driven by two main factors: intense traditional human activity and the dynamics of the ecosystem itself. In this study, we examine land-cover changes in a National Park in the Pyrenees mountains (NE Iberian Peninsula), which was designated a protected area 55 years ago. First, we have analyzed spatio-temporal changes in land-cover pattern and forest dynamics from 1957 to 2005. During this period, land-cover dynamics consisted of two main processes: (i) expansion of the forest area and (ii) increasing cover of forests already present in 1957. To analyze the role of the conservation level of the park, we have also compared the results obtained within the park with those of unprotected, peripheral areas. In the two areas with different protection level, dense forests increased throughout the period because of the reduction in forestry activities. The peripheral area showed a higher rate of forest-cover change from 1957 to 2005 compared to the National Park. This higher increase in forest cover in the peripheral area could be related to a higher proportion in the National Park of screes and rocky areas and to the decline and transformation of forest activities in these peripheral, lower elevation areas.
机译：地中海山区的现状受到两个主要因素的驱动：传统的人类活动频繁以及生态系统本身的动态。在这项研究中，我们研究了比利牛斯山脉（东北伊比利亚半岛）国家公园的土地覆盖变化，该公园在55年前被指定为保护区。首先，我们分析了1957年至2005年期间土地覆盖格局和森林动态的时空变化。在此期间，土地覆盖动态包括两个主要过程：（i）森林面积的扩大和（ii）覆盖率的提高1957年已经存在的森林数量。为了分析公园的保护水平的作用，我们还比较了公园内与未受保护的外围区域的结果。在两个保护水平不同的地区，由于林业活动的减少，整个时期森林茂密。与国家公园相比，从1957年到2005年，周边地区的森林覆盖率更高。周边地区森林覆盖率的增加可能与国家公园的熨平板和岩石区比例较高，以及这些外围低海拔地区森林活动的减少和转变有关。

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  • 来源
    《Regional Environmental Change》 |2011年第2期|p.349-358|共10页
  • 作者

    Marc Gracia; Nacima Meghelli; Lluis Comas; Javier Retana;

  • 作者单位

    Centre for Ecological Research and Forestry Applications (CREAF) and Unit of Ecology, Faculty of Sciences, Autonomous University of Barcelona, Campus UAB, 08193 Bellaterra (Barcelona), Spain;

    Centre for Ecological Research and Forestry Applications (CREAF) and Unit of Ecology, Faculty of Sciences, Autonomous University of Barcelona, Campus UAB, 08193 Bellaterra (Barcelona), Spain;

    Centre for Ecological Research and Forestry Applications (CREAF) and Unit of Ecology, Faculty of Sciences, Autonomous University of Barcelona, Campus UAB, 08193 Bellaterra (Barcelona), Spain;

    Centre for Ecological Research and Forestry Applications (CREAF) and Unit of Ecology, Faculty of Sciences, Autonomous University of Barcelona, Campus UAB, 08193 Bellaterra (Barcelona), Spain;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    national park; pyrenees; mountain areas; land-use changes; forest cover; forest dynamics;

    机译：国家公园;ene山区;土地利用变化;森林覆盖;森林动力学;

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