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Inexpensive throughfall exclusion experiment for single large trees
PREMISE: Drought‐induced tree mortality is an emergent threat to forests worldwide, particularly to large trees. Drought‐manipulation experiments involving throughfall exclusion (TFE) tend to focus on large plots that can be expensive to establish and maintain and may be unsuitable for large trees o...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7035431/ https://www.ncbi.nlm.nih.gov/pubmed/32110504 http://dx.doi.org/10.1002/aps3.11325 |
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author | Cranston, Benjamin M. Powers, Breanna F. Macinnis‐Ng, Cate |
author_facet | Cranston, Benjamin M. Powers, Breanna F. Macinnis‐Ng, Cate |
author_sort | Cranston, Benjamin M. |
collection | PubMed |
description | PREMISE: Drought‐induced tree mortality is an emergent threat to forests worldwide, particularly to large trees. Drought‐manipulation experiments involving throughfall exclusion (TFE) tend to focus on large plots that can be expensive to establish and maintain and may be unsuitable for large trees or indigenous forests. We set out to establish a relatively inexpensive TFE method in a natural forest with large trees. METHODS: We designed a novel TFE method and installed it in the Waitākere Range of West Auckland, New Zealand, to study the southern conifer kauri (Agathis australis) under long‐term simulated drought. We measured fluxes of water (sap flow) and carbon (stem increment and litterfall) as indicators of drought effects. RESULTS: Throughfall was cut off to a 22.25‐m(2) area around individual boles, causing reduced soil moisture and reduced sap flow in droughted trees. DISCUSSION: Our new TFE method centered on individual, large trees in native forest and is highly customizable to fit other forest and species types. It can be used to assess physiological responses to drought of individual trees independent of stem size. |
format | Online Article Text |
id | pubmed-7035431 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-70354312020-02-27 Inexpensive throughfall exclusion experiment for single large trees Cranston, Benjamin M. Powers, Breanna F. Macinnis‐Ng, Cate Appl Plant Sci Application Articles PREMISE: Drought‐induced tree mortality is an emergent threat to forests worldwide, particularly to large trees. Drought‐manipulation experiments involving throughfall exclusion (TFE) tend to focus on large plots that can be expensive to establish and maintain and may be unsuitable for large trees or indigenous forests. We set out to establish a relatively inexpensive TFE method in a natural forest with large trees. METHODS: We designed a novel TFE method and installed it in the Waitākere Range of West Auckland, New Zealand, to study the southern conifer kauri (Agathis australis) under long‐term simulated drought. We measured fluxes of water (sap flow) and carbon (stem increment and litterfall) as indicators of drought effects. RESULTS: Throughfall was cut off to a 22.25‐m(2) area around individual boles, causing reduced soil moisture and reduced sap flow in droughted trees. DISCUSSION: Our new TFE method centered on individual, large trees in native forest and is highly customizable to fit other forest and species types. It can be used to assess physiological responses to drought of individual trees independent of stem size. John Wiley and Sons Inc. 2020-02-14 /pmc/articles/PMC7035431/ /pubmed/32110504 http://dx.doi.org/10.1002/aps3.11325 Text en © 2020 Cranston et al. Applications in Plant Sciences is published by Wiley Periodicals, Inc. on behalf of the Botanical Society of America This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Application Articles Cranston, Benjamin M. Powers, Breanna F. Macinnis‐Ng, Cate Inexpensive throughfall exclusion experiment for single large trees |
title | Inexpensive throughfall exclusion experiment for single large trees |
title_full | Inexpensive throughfall exclusion experiment for single large trees |
title_fullStr | Inexpensive throughfall exclusion experiment for single large trees |
title_full_unstemmed | Inexpensive throughfall exclusion experiment for single large trees |
title_short | Inexpensive throughfall exclusion experiment for single large trees |
title_sort | inexpensive throughfall exclusion experiment for single large trees |
topic | Application Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7035431/ https://www.ncbi.nlm.nih.gov/pubmed/32110504 http://dx.doi.org/10.1002/aps3.11325 |
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