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Mapping Changes in Land Cover Composition and Pattern for Comparing Mediterranean Rangeland Restoration Alternatives

机译:绘制土地覆盖物组成和格局变化的图,以比较地中海牧场的恢复方案

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摘要

The limited amount of studies addressing the long-term effectiveness of restoration actions to combat land degradation is a constraint for current landscape restoration planning and implementation. Remote sensing data provide a unique opportunity for gathering information on the spatial and temporal variability of restoration processes and may contribute to fill this knowledge gap. The aim of this study is to compare different management actions undertaken in Mediterranean degraded rangelands (i.e.dense pine plantations, thinned pine plantations, protection and passive management) by analysing landscape composition and pattern change assessed from object-based classification of aerial photograph of 1954, 1977 and 2006. Results show a clear link between landscape composition and structure and the different restoration actions, allowing comparison between their spatial and temporal dynamics. All restoration actions promoted an increase in woody vegetation cover compared with non-restored areas. However, only protection and passive management favoured the restoration of dense, complex and well-connected patches of native Mediterranean maquis. The proposed methodology is discussed with respect to its applicability for future Mediterranean landscape restoration planning in a wider geographic and ecological perspective. Copyright (c) 2015 John Wiley & Sons, Ltd.
机译:涉及恢复措施以应对土地退化的长期有效性的研究数量有限,这是当前景观恢复规划和实施的一个制约因素。遥感数据为收集有关恢复过程的时空变化信息提供了独特的机会,并可能有助于填补这一知识空白。这项研究的目的是通过分析根据1954年航空摄影的基于对象的分类所评估的景观组成和格局变化,来比较地中海退化牧场的不同管理措施(艾登塞松人工林,间伐松人工林,保护和被动管理), 1977年和2006年。结果显示景观组成和结构与不同的恢复作用之间有着明确的联系,从而可以比较它们的时空动态。与未恢复的地区相比,所有恢复活动均促进了木质植被的增加。但是,只有保护和被动管理才有利于恢复地中海原产地茂密,复杂和联系良好的斑块。讨论了所提出的方法论在更广泛的地理和生态角度上对未来地中海景观恢复规划的适用性。版权所有(c)2015 John Wiley&Sons,Ltd.

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