4.7 Review

Unveil the unseen: Using LiDAR to capture time-lag dynamics in the herbaceous layer of European temperate forests

期刊

JOURNAL OF ECOLOGY
卷 110, 期 2, 页码 282-300

出版社

WILEY
DOI: 10.1111/1365-2745.13837

关键词

archaeology; biodiversity; climatic debt; disequilibrium dynamics; forest management; historical ecology; microclimate; remote sensing

资金

  1. Agence Nationale de la Recherche [ANR-19-CE32-0005-01, ANR-20-EBI5-0004]
  2. Centre National de la Recherche Scientifique [Defi INFINITI 2018]
  3. Centre National d'Etudes Spatiale [TOSCA-CNES 4500070632]
  4. Direction Regionale des Affaires Culturelles Hauts-de-France [PCR 2018-2022]
  5. European Cooperation in Science and Technology [CA17134]
  6. H2020 Environment [862480]
  7. Research Foundation Flanders [12P1819N]
  8. H2020 European Research Council [757833]
  9. Schweizerischer Nationalfonds zur Forderung der Wissenschaftlichen Forschung [193645]
  10. Agence Nationale de la Recherche (ANR) [ANR-20-EBI5-0004] Funding Source: Agence Nationale de la Recherche (ANR)

向作者/读者索取更多资源

Understanding time-lag dynamics in biodiversity response to contemporary environmental changes requires considering past human activities. This is particularly important in European temperate forests, where legacies from past land uses can confound the effects of recent macro-environmental changes. By using LiDAR technology, we can uncover the impacts of past land uses and management practices, helping to explain biotic responses to long-term environmental changes.
To understand time-lag dynamics in the response of biodiversity to contemporary environmental changes (e.g. macroclimate warming and atmospheric pollution), we need to consider former anthropogenic forcing factors such as past land uses and management practices that can have both compounding and confounding effects. This is especially true in European temperate forests, where legacies from past human activities have left strong imprints on today's understorey plant species composition, generating long-term lagging effects which can be mistakenly attributed to more recent macro-environmental changes. By combining the expertise of plant, soil and historical ecologists together with remote sensing scientists, we review the potential of light detection and ranging (LiDAR) to unveil ghosts from the past in terms of former land uses and management practices. We show that imprints from past land uses and management practices can still be captured today through well-chosen LiDAR-derived variables describing, at sub-decimetre scale, the vertical and horizontal micro-variations of vegetation and terrain structure hidden below treetops. Synthesis. We encourage plant and soil ecologists to use LiDAR data and to work with historians, archaeologists and remote sensing scientists in order to select meaningful LiDAR-derived variables to account for time-lagged biotic responses to long-term macro-environmental changes.

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