Land-use legacy drives post-abandonment forest structure and understory in the western Alps

IF 7.9 1区 环境科学与生态学 Q1 ECOLOGY
Giacomo Marengo , Nicolò Anselmetto , Davide Barberis , Giampiero Lombardi , Michele Lonati , Matteo Garbarino
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引用次数: 0

Abstract

Rural exodus from European mountain regions to lowlands has triggered natural reforestation of abandoned lands in the 19th and 20th centuries, altering the provision of ecosystem services and creating management challenges. Post-abandonment forests are complex ecosystems that respond over time and space to several drivers. Their management requires integrated approaches that involve insights from historical ecology. Our study aimed to assess the influences of the land-use legacies on post-abandonment forest overstory and understory and provide insights on suitable management strategies. We assessed these influences using multiple scales (from landscape to field scale) and ecological approaches (vegetation, forest, and landscape ecology).
We identified post-abandonment forests within a western Alps watershed through a land-use/land-cover change detection from 1954 to 2017. Field surveys were conducted in three different land-use legacy types (i.e., transitions from former grasslands, wood-pastures, and sparse forests to dense forests) to analyse forest overstory and understory. We explored the influences of land-use legacy on post-abandonment forests through redundancy analysis, using forest overstory and understory variables as response variables and environmental factors as predictors. Our study revealed successional and environmental differences among post-abandonment forests, notably depending on the historical presence of biological legacies: forests originating from former wooded areas exhibited ecological conditions closer to natural trajectories, while those resulting from abandoned grasslands still express conditions similar to the pre-abandonment ones. Based on our findings, we discuss how the direct implications of land-use legacies on post-abandonment forests can provide insights into their management.
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来源期刊
Landscape and Urban Planning
Landscape and Urban Planning 环境科学-生态学
CiteScore
15.20
自引率
6.60%
发文量
232
审稿时长
6 months
期刊介绍: Landscape and Urban Planning is an international journal that aims to enhance our understanding of landscapes and promote sustainable solutions for landscape change. The journal focuses on landscapes as complex social-ecological systems that encompass various spatial and temporal dimensions. These landscapes possess aesthetic, natural, and cultural qualities that are valued by individuals in different ways, leading to actions that alter the landscape. With increasing urbanization and the need for ecological and cultural sensitivity at various scales, a multidisciplinary approach is necessary to comprehend and align social and ecological values for landscape sustainability. The journal believes that combining landscape science with planning and design can yield positive outcomes for both people and nature.
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