Machine-Learning Functional Zonation Approach for Characterizing Terrestrial–Aquatic Interfaces: Application to Lake Erie

Ecosystems at coastal terrestrial–aquatic interfaces play a significant role in global biogeochemical cycles. In this study, we aimed to characterize coastal wetlands with particular focus on the co-variability between plant dynamics, topography, soil, and other environmental factors. We proposed a...

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Main Authors: Léa Enguehard, Nicola Falco, Myriam Schmutz, Michelle E. Newcomer, Joshua Ladau, James B. Brown, Laura Bourgeau-Chavez, Haruko M. Wainwright
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Remote Sensing
Subjects:
Online Access:https://www.mdpi.com/2072-4292/14/14/3285
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author Léa Enguehard
Nicola Falco
Myriam Schmutz
Michelle E. Newcomer
Joshua Ladau
James B. Brown
Laura Bourgeau-Chavez
Haruko M. Wainwright
author_facet Léa Enguehard
Nicola Falco
Myriam Schmutz
Michelle E. Newcomer
Joshua Ladau
James B. Brown
Laura Bourgeau-Chavez
Haruko M. Wainwright
author_sort Léa Enguehard
collection DOAJ
description Ecosystems at coastal terrestrial–aquatic interfaces play a significant role in global biogeochemical cycles. In this study, we aimed to characterize coastal wetlands with particular focus on the co-variability between plant dynamics, topography, soil, and other environmental factors. We proposed a functional zonation approach based on machine learning clustering to identify the spatial regions, i.e., zones that capture these co-varied properties. This approach was applied to publicly available datasets along Lake Erie, in the Great Lakes Region. We investigated the heterogeneity of coastal ecosystem structures as a function of along-shore distance and transverse distance, based on the spatial data layers, including topography, wetland vegetation cover, and the time series of Landsat’s enhanced vegetation index (EVI) between 1990 and 2020. Results showed that the topographic metrics (elevation and slope), soil texture, and plant productivity influence the spatial distribution of wetland land-covers (emergent and phragmites). These results highlight a natural organization along the transverse axis, where the elevation and the EVI increase further away from the coastline. In addition, the clustering analysis allowed us to identify regions with distinct environmental characteristics, as well as the ones that are more sensitive to interannual lake-level variations.
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spelling doaj.art-ce53acf46d99468f96167ac11f124b5e2023-12-03T12:10:21ZengMDPI AGRemote Sensing2072-42922022-07-011414328510.3390/rs14143285Machine-Learning Functional Zonation Approach for Characterizing Terrestrial–Aquatic Interfaces: Application to Lake ErieLéa Enguehard0Nicola Falco1Myriam Schmutz2Michelle E. Newcomer3Joshua Ladau4James B. Brown5Laura Bourgeau-Chavez6Haruko M. Wainwright7Earth and Environmental Sciences Area, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USAEarth and Environmental Sciences Area, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USAEPOC UMR 5805, CNRS, Bordeaux INP, 1 Allée F. Daguin, 33607 Pessac, FranceEarth and Environmental Sciences Area, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USAComputational Biosciences Group, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USAComputational Biosciences Group, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USAMichigan Tech Research Institute, Michigan Technical University, Ann Arbor, MI 48105, USAEarth and Environmental Sciences Area, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USAEcosystems at coastal terrestrial–aquatic interfaces play a significant role in global biogeochemical cycles. In this study, we aimed to characterize coastal wetlands with particular focus on the co-variability between plant dynamics, topography, soil, and other environmental factors. We proposed a functional zonation approach based on machine learning clustering to identify the spatial regions, i.e., zones that capture these co-varied properties. This approach was applied to publicly available datasets along Lake Erie, in the Great Lakes Region. We investigated the heterogeneity of coastal ecosystem structures as a function of along-shore distance and transverse distance, based on the spatial data layers, including topography, wetland vegetation cover, and the time series of Landsat’s enhanced vegetation index (EVI) between 1990 and 2020. Results showed that the topographic metrics (elevation and slope), soil texture, and plant productivity influence the spatial distribution of wetland land-covers (emergent and phragmites). These results highlight a natural organization along the transverse axis, where the elevation and the EVI increase further away from the coastline. In addition, the clustering analysis allowed us to identify regions with distinct environmental characteristics, as well as the ones that are more sensitive to interannual lake-level variations.https://www.mdpi.com/2072-4292/14/14/3285coastal wetlandsplant productivityGreat Lakes Regionmachine learningfunctional zonationremote sensing
spellingShingle Léa Enguehard
Nicola Falco
Myriam Schmutz
Michelle E. Newcomer
Joshua Ladau
James B. Brown
Laura Bourgeau-Chavez
Haruko M. Wainwright
Machine-Learning Functional Zonation Approach for Characterizing Terrestrial–Aquatic Interfaces: Application to Lake Erie
Remote Sensing
coastal wetlands
plant productivity
Great Lakes Region
machine learning
functional zonation
remote sensing
title Machine-Learning Functional Zonation Approach for Characterizing Terrestrial–Aquatic Interfaces: Application to Lake Erie
title_full Machine-Learning Functional Zonation Approach for Characterizing Terrestrial–Aquatic Interfaces: Application to Lake Erie
title_fullStr Machine-Learning Functional Zonation Approach for Characterizing Terrestrial–Aquatic Interfaces: Application to Lake Erie
title_full_unstemmed Machine-Learning Functional Zonation Approach for Characterizing Terrestrial–Aquatic Interfaces: Application to Lake Erie
title_short Machine-Learning Functional Zonation Approach for Characterizing Terrestrial–Aquatic Interfaces: Application to Lake Erie
title_sort machine learning functional zonation approach for characterizing terrestrial aquatic interfaces application to lake erie
topic coastal wetlands
plant productivity
Great Lakes Region
machine learning
functional zonation
remote sensing
url https://www.mdpi.com/2072-4292/14/14/3285
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