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Establishing the Position and Drivers of the Eastern Andean Treeline with Automated Transect Sampling

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dc.abstract.enThe eastern Andean treeline (EATL) is the world’s longest altitudinal ecotone and plays an important role in biodiversity conservation in the context of land use/cover and climate change. The purpose of this study was to assess to what extent the position of the tropical EATL (9°N–18°S) is in near-equilibrium with the climate, which determines its potential to adapt to climate change. On a continental scale, we have used land cover maps (MODIS MCD12) and elevation data (SRTM) to make the first-order assessment of the EATL position and continuity. For the assessment on a local scale and to address the three-dimensional nature of environmental change in mountainous environments, a novel method of automated delineation and assessment of altitudinal transects was devised and applied to Landsat-based forest maps (GLAD) and fine-resolution climatology (CHELSA). The emergence of a consistent longitudinal gradient of the treeline elevation over half of the EATL extent, which increases towards the equator by ~30 m and ~60 m per geographic degree from the south and north, respectively, serves as a first-order validation of the approach, while the local transects reveal a more nuanced aspect-dependent pattern. We conclude that the applied dual-scale approach with automated mass transect sampling allows for an improved understanding of treeline dynamics.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorŻelazowski, Przemysław
dc.contributor.authorMalhi, Yadvinder
dc.contributor.authorFeeley, Kenneth J.
dc.contributor.authorJozefowicz, Stefan
dc.date.accessioned2024-01-24T23:20:46Z
dc.date.available2024-01-24T23:20:46Z
dc.date.issued2023
dc.description.financeŚrodki finansowe, o których mowa w art. 365 pkt. 2 ustawy
dc.description.number10
dc.description.volume15
dc.identifier.doi10.3390/RS15102679
dc.identifier.issn2072-4292
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/106392
dc.identifier.weblinkhttps://www.mdpi.com/2072-4292/15/10/2679/pdf
dc.languageeng
dc.pbn.affiliationearth and related environmental sciences
dc.relation.ispartofRemote Sensing
dc.relation.pages2679
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.titleEstablishing the Position and Drivers of the Eastern Andean Treeline with Automated Transect Sampling
dc.typeJournalArticle
dspace.entity.typePublication