Measurement of actual evapotranspiration in a páramo ecosystem using portable closed chambers: Comparison between giant rosettes, tussock grasses and shrubs
Abstract The páramos are Neotropical alpine tundra‐like ecosystems that play a crucial role as biodiversity hotspots and also act as water sources for the inter‐Andean regions and cities. Improving our understanding of hydrological processes, here evapotranspiration, is crucial, especially in the co...
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Online Access: | http://dx.doi.org/10.1002/eco.2525 https://onlinelibrary.wiley.com/doi/pdf/10.1002/eco.2525 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/eco.2525 |
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crwiley:10.1002/eco.2525 2024-06-02T08:15:28+00:00 Measurement of actual evapotranspiration in a páramo ecosystem using portable closed chambers: Comparison between giant rosettes, tussock grasses and shrubs Meyers, Barbara Gutiérrez‐Lagoueyte, María Elena Tobón, Conrado 2023 http://dx.doi.org/10.1002/eco.2525 https://onlinelibrary.wiley.com/doi/pdf/10.1002/eco.2525 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/eco.2525 en eng Wiley http://creativecommons.org/licenses/by-nc/4.0/ Ecohydrology volume 16, issue 4 ISSN 1936-0584 1936-0592 journal-article 2023 crwiley https://doi.org/10.1002/eco.2525 2024-05-03T11:41:10Z Abstract The páramos are Neotropical alpine tundra‐like ecosystems that play a crucial role as biodiversity hotspots and also act as water sources for the inter‐Andean regions and cities. Improving our understanding of hydrological processes, here evapotranspiration, is crucial, especially in the context of global changes. In páramos, most research have focused on estimating potential evapotranspiration (ETo) using the Penman–Monteith method. Only a few studies have quantified actual evapotranspiration using mostly the Eddy covariance method (EC) or volumetric lysimeters. Importantly, these studies focused only on tussock grass communities, and none have addressed the effect of other plant communities specific to páramos on the actual evapotranspiration of this ecosystem. In this research, portable closed chambers were installed for the first time in a páramo (in Los Nevados National Park, between 3900 and 4100 masl) to quantify actual evapotranspration (ETa) in March and May 2019 in three representative plant communities of the páramo (giant rosettes, shrubs and tussock grasses). The ETa rates measured were then compared with ETo estimated using the Penman–Monteith method. Also, environmental factors of solar radiation, temperature and relative humidity were recorded and their influence on ETa variation was analysed. Our results indicate that ETa daily rates were very low with a high daily variation (0.290 ± 0.266 mm day −1 ). The shrubs showed higher ETa rates even though differences among communities were not significant. ETo rates calculated via the Penman–Monteith method were significantly higher (1.017 ± 0.468 mm day −1 ) than those measured using the portable chambers. Portable closed chamber is a promising method to assess ETa at small spatial and time scales and under controlled environment; however, they should be improved to enable ETa measurements on longer time periods. This study confirms the highly variable and low evapotranspiration rate of the páramo vegetation, here confirmed across different ... Article in Journal/Newspaper Tundra Wiley Online Library Eta ENVELOPE(-62.917,-62.917,-64.300,-64.300) Ecohydrology 16 4 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract The páramos are Neotropical alpine tundra‐like ecosystems that play a crucial role as biodiversity hotspots and also act as water sources for the inter‐Andean regions and cities. Improving our understanding of hydrological processes, here evapotranspiration, is crucial, especially in the context of global changes. In páramos, most research have focused on estimating potential evapotranspiration (ETo) using the Penman–Monteith method. Only a few studies have quantified actual evapotranspiration using mostly the Eddy covariance method (EC) or volumetric lysimeters. Importantly, these studies focused only on tussock grass communities, and none have addressed the effect of other plant communities specific to páramos on the actual evapotranspiration of this ecosystem. In this research, portable closed chambers were installed for the first time in a páramo (in Los Nevados National Park, between 3900 and 4100 masl) to quantify actual evapotranspration (ETa) in March and May 2019 in three representative plant communities of the páramo (giant rosettes, shrubs and tussock grasses). The ETa rates measured were then compared with ETo estimated using the Penman–Monteith method. Also, environmental factors of solar radiation, temperature and relative humidity were recorded and their influence on ETa variation was analysed. Our results indicate that ETa daily rates were very low with a high daily variation (0.290 ± 0.266 mm day −1 ). The shrubs showed higher ETa rates even though differences among communities were not significant. ETo rates calculated via the Penman–Monteith method were significantly higher (1.017 ± 0.468 mm day −1 ) than those measured using the portable chambers. Portable closed chamber is a promising method to assess ETa at small spatial and time scales and under controlled environment; however, they should be improved to enable ETa measurements on longer time periods. This study confirms the highly variable and low evapotranspiration rate of the páramo vegetation, here confirmed across different ... |
format |
Article in Journal/Newspaper |
author |
Meyers, Barbara Gutiérrez‐Lagoueyte, María Elena Tobón, Conrado |
spellingShingle |
Meyers, Barbara Gutiérrez‐Lagoueyte, María Elena Tobón, Conrado Measurement of actual evapotranspiration in a páramo ecosystem using portable closed chambers: Comparison between giant rosettes, tussock grasses and shrubs |
author_facet |
Meyers, Barbara Gutiérrez‐Lagoueyte, María Elena Tobón, Conrado |
author_sort |
Meyers, Barbara |
title |
Measurement of actual evapotranspiration in a páramo ecosystem using portable closed chambers: Comparison between giant rosettes, tussock grasses and shrubs |
title_short |
Measurement of actual evapotranspiration in a páramo ecosystem using portable closed chambers: Comparison between giant rosettes, tussock grasses and shrubs |
title_full |
Measurement of actual evapotranspiration in a páramo ecosystem using portable closed chambers: Comparison between giant rosettes, tussock grasses and shrubs |
title_fullStr |
Measurement of actual evapotranspiration in a páramo ecosystem using portable closed chambers: Comparison between giant rosettes, tussock grasses and shrubs |
title_full_unstemmed |
Measurement of actual evapotranspiration in a páramo ecosystem using portable closed chambers: Comparison between giant rosettes, tussock grasses and shrubs |
title_sort |
measurement of actual evapotranspiration in a páramo ecosystem using portable closed chambers: comparison between giant rosettes, tussock grasses and shrubs |
publisher |
Wiley |
publishDate |
2023 |
url |
http://dx.doi.org/10.1002/eco.2525 https://onlinelibrary.wiley.com/doi/pdf/10.1002/eco.2525 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/eco.2525 |
long_lat |
ENVELOPE(-62.917,-62.917,-64.300,-64.300) |
geographic |
Eta |
geographic_facet |
Eta |
genre |
Tundra |
genre_facet |
Tundra |
op_source |
Ecohydrology volume 16, issue 4 ISSN 1936-0584 1936-0592 |
op_rights |
http://creativecommons.org/licenses/by-nc/4.0/ |
op_doi |
https://doi.org/10.1002/eco.2525 |
container_title |
Ecohydrology |
container_volume |
16 |
container_issue |
4 |
_version_ |
1800739646549786624 |