Foliar functional traits from imaging spectroscopy across biomes in eastern North America
Summary Foliar functional traits are widely used to characterize leaf and canopy properties that drive ecosystem processes and to infer physiological processes in Earth system models. Imaging spectroscopy provides great potential to map foliar traits to characterize continuous functional variation a...
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Online Access: | http://dx.doi.org/10.1111/nph.16711 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fnph.16711 https://onlinelibrary.wiley.com/doi/pdf/10.1111/nph.16711 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/nph.16711 https://nph.onlinelibrary.wiley.com/doi/am-pdf/10.1111/nph.16711 https://nph.onlinelibrary.wiley.com/doi/pdf/10.1111/nph.16711 |
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crwiley:10.1111/nph.16711 2024-10-13T14:11:12+00:00 Foliar functional traits from imaging spectroscopy across biomes in eastern North America Wang, Zhihui Chlus, Adam Geygan, Ryan Ye, Zhiwei Zheng, Ting Singh, Aditya Couture, John J. Cavender‐Bares, Jeannine Kruger, Eric L. Townsend, Philip A. National Aeronautics and Space Administration National Science Foundation U.S. Department of Energy Office of Science 2020 http://dx.doi.org/10.1111/nph.16711 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fnph.16711 https://onlinelibrary.wiley.com/doi/pdf/10.1111/nph.16711 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/nph.16711 https://nph.onlinelibrary.wiley.com/doi/am-pdf/10.1111/nph.16711 https://nph.onlinelibrary.wiley.com/doi/pdf/10.1111/nph.16711 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor New Phytologist volume 228, issue 2, page 494-511 ISSN 0028-646X 1469-8137 journal-article 2020 crwiley https://doi.org/10.1111/nph.16711 2024-09-19T04:20:18Z Summary Foliar functional traits are widely used to characterize leaf and canopy properties that drive ecosystem processes and to infer physiological processes in Earth system models. Imaging spectroscopy provides great potential to map foliar traits to characterize continuous functional variation and diversity, but few studies have demonstrated consistent methods for mapping multiple traits across biomes. With airborne imaging spectroscopy data and field data from 19 sites, we developed trait models using partial least squares regression, and mapped 26 foliar traits in seven NEON (National Ecological Observatory Network) ecoregions (domains) including temperate and subtropical forests and grasslands of eastern North America. Model validation accuracy varied among traits (normalized root mean squared error, 9.1–19.4%; coefficient of determination, 0.28–0.82), with phenolic concentration, leaf mass per area and equivalent water thickness performing best across domains. Across all trait maps, 90% of vegetated pixels had reasonable values for one trait, and 28–81% provided high confidence for multiple traits concurrently. Maps of 26 traits and their uncertainties for eastern US NEON sites are available for download, and are being expanded to the western United States and tundra/boreal zone. These data enable better understanding of trait variations and relationships over large areas, calibration of ecosystem models, and assessment of continental‐scale functional diversity. Article in Journal/Newspaper Tundra Wiley Online Library New Phytologist 228 2 494 511 |
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Wiley Online Library |
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English |
description |
Summary Foliar functional traits are widely used to characterize leaf and canopy properties that drive ecosystem processes and to infer physiological processes in Earth system models. Imaging spectroscopy provides great potential to map foliar traits to characterize continuous functional variation and diversity, but few studies have demonstrated consistent methods for mapping multiple traits across biomes. With airborne imaging spectroscopy data and field data from 19 sites, we developed trait models using partial least squares regression, and mapped 26 foliar traits in seven NEON (National Ecological Observatory Network) ecoregions (domains) including temperate and subtropical forests and grasslands of eastern North America. Model validation accuracy varied among traits (normalized root mean squared error, 9.1–19.4%; coefficient of determination, 0.28–0.82), with phenolic concentration, leaf mass per area and equivalent water thickness performing best across domains. Across all trait maps, 90% of vegetated pixels had reasonable values for one trait, and 28–81% provided high confidence for multiple traits concurrently. Maps of 26 traits and their uncertainties for eastern US NEON sites are available for download, and are being expanded to the western United States and tundra/boreal zone. These data enable better understanding of trait variations and relationships over large areas, calibration of ecosystem models, and assessment of continental‐scale functional diversity. |
author2 |
National Aeronautics and Space Administration National Science Foundation U.S. Department of Energy Office of Science |
format |
Article in Journal/Newspaper |
author |
Wang, Zhihui Chlus, Adam Geygan, Ryan Ye, Zhiwei Zheng, Ting Singh, Aditya Couture, John J. Cavender‐Bares, Jeannine Kruger, Eric L. Townsend, Philip A. |
spellingShingle |
Wang, Zhihui Chlus, Adam Geygan, Ryan Ye, Zhiwei Zheng, Ting Singh, Aditya Couture, John J. Cavender‐Bares, Jeannine Kruger, Eric L. Townsend, Philip A. Foliar functional traits from imaging spectroscopy across biomes in eastern North America |
author_facet |
Wang, Zhihui Chlus, Adam Geygan, Ryan Ye, Zhiwei Zheng, Ting Singh, Aditya Couture, John J. Cavender‐Bares, Jeannine Kruger, Eric L. Townsend, Philip A. |
author_sort |
Wang, Zhihui |
title |
Foliar functional traits from imaging spectroscopy across biomes in eastern North America |
title_short |
Foliar functional traits from imaging spectroscopy across biomes in eastern North America |
title_full |
Foliar functional traits from imaging spectroscopy across biomes in eastern North America |
title_fullStr |
Foliar functional traits from imaging spectroscopy across biomes in eastern North America |
title_full_unstemmed |
Foliar functional traits from imaging spectroscopy across biomes in eastern North America |
title_sort |
foliar functional traits from imaging spectroscopy across biomes in eastern north america |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1111/nph.16711 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fnph.16711 https://onlinelibrary.wiley.com/doi/pdf/10.1111/nph.16711 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/nph.16711 https://nph.onlinelibrary.wiley.com/doi/am-pdf/10.1111/nph.16711 https://nph.onlinelibrary.wiley.com/doi/pdf/10.1111/nph.16711 |
genre |
Tundra |
genre_facet |
Tundra |
op_source |
New Phytologist volume 228, issue 2, page 494-511 ISSN 0028-646X 1469-8137 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/nph.16711 |
container_title |
New Phytologist |
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228 |
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2 |
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494 |
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511 |
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1812818843168407552 |