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Satellite Data-Based Phenological Evaluation of the Nationwide Reforestation of South Korea
Through the past 60 years, forests, now of various age classes, have been established in the southern part of the Korean Peninsula through nationwide efforts to reestablish forests since the Korean War (1950–53), during which more than 65% of the nation's forest was destroyed. Careful evaluatio...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3592835/ https://www.ncbi.nlm.nih.gov/pubmed/23520541 http://dx.doi.org/10.1371/journal.pone.0058900 |
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author | Jeong, Su-Jong Ho, Chang-Hoi Choi, Sung-Deuk Kim, Jinwon Lee, Eun-Ju Gim, Hyeon-Ju |
author_facet | Jeong, Su-Jong Ho, Chang-Hoi Choi, Sung-Deuk Kim, Jinwon Lee, Eun-Ju Gim, Hyeon-Ju |
author_sort | Jeong, Su-Jong |
collection | PubMed |
description | Through the past 60 years, forests, now of various age classes, have been established in the southern part of the Korean Peninsula through nationwide efforts to reestablish forests since the Korean War (1950–53), during which more than 65% of the nation's forest was destroyed. Careful evaluation of long-term changes in vegetation growth after reforestation is one of the essential steps to ensuring sustainable forest management. This study investigated nationwide variations in vegetation phenology using satellite-based growing season estimates for 1982–2008. The start of the growing season calculated from the normalized difference vegetation index (NDVI) agrees reasonably with the ground-observed first flowering date both temporally (correlation coefficient, r = 0.54) and spatially (r = 0.64) at the 95% confidence level. Over the entire 27-year period, South Korea, on average, experienced a lengthening of the growing season of 4.5 days decade(−1), perhaps due to recent global warming. The lengthening of the growing season is attributed mostly to delays in the end of the growing season. The retrieved nationwide growing season data were used to compare the spatial variations in forest biomass carbon density with the time-averaged growing season length for 61 forests. Relatively higher forest biomass carbon density was observed over the regions having a longer growing season, especially for the regions dominated by young (<30 year) forests. These results imply that a lengthening of the growing season related to the ongoing global warming may have positive impacts on carbon sequestration, an important aspect of large-scale forest management for sustainable development. |
format | Online Article Text |
id | pubmed-3592835 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-35928352013-03-21 Satellite Data-Based Phenological Evaluation of the Nationwide Reforestation of South Korea Jeong, Su-Jong Ho, Chang-Hoi Choi, Sung-Deuk Kim, Jinwon Lee, Eun-Ju Gim, Hyeon-Ju PLoS One Research Article Through the past 60 years, forests, now of various age classes, have been established in the southern part of the Korean Peninsula through nationwide efforts to reestablish forests since the Korean War (1950–53), during which more than 65% of the nation's forest was destroyed. Careful evaluation of long-term changes in vegetation growth after reforestation is one of the essential steps to ensuring sustainable forest management. This study investigated nationwide variations in vegetation phenology using satellite-based growing season estimates for 1982–2008. The start of the growing season calculated from the normalized difference vegetation index (NDVI) agrees reasonably with the ground-observed first flowering date both temporally (correlation coefficient, r = 0.54) and spatially (r = 0.64) at the 95% confidence level. Over the entire 27-year period, South Korea, on average, experienced a lengthening of the growing season of 4.5 days decade(−1), perhaps due to recent global warming. The lengthening of the growing season is attributed mostly to delays in the end of the growing season. The retrieved nationwide growing season data were used to compare the spatial variations in forest biomass carbon density with the time-averaged growing season length for 61 forests. Relatively higher forest biomass carbon density was observed over the regions having a longer growing season, especially for the regions dominated by young (<30 year) forests. These results imply that a lengthening of the growing season related to the ongoing global warming may have positive impacts on carbon sequestration, an important aspect of large-scale forest management for sustainable development. Public Library of Science 2013-03-08 /pmc/articles/PMC3592835/ /pubmed/23520541 http://dx.doi.org/10.1371/journal.pone.0058900 Text en © 2013 Jeong et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Jeong, Su-Jong Ho, Chang-Hoi Choi, Sung-Deuk Kim, Jinwon Lee, Eun-Ju Gim, Hyeon-Ju Satellite Data-Based Phenological Evaluation of the Nationwide Reforestation of South Korea |
title | Satellite Data-Based Phenological Evaluation of the Nationwide Reforestation of South Korea |
title_full | Satellite Data-Based Phenological Evaluation of the Nationwide Reforestation of South Korea |
title_fullStr | Satellite Data-Based Phenological Evaluation of the Nationwide Reforestation of South Korea |
title_full_unstemmed | Satellite Data-Based Phenological Evaluation of the Nationwide Reforestation of South Korea |
title_short | Satellite Data-Based Phenological Evaluation of the Nationwide Reforestation of South Korea |
title_sort | satellite data-based phenological evaluation of the nationwide reforestation of south korea |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3592835/ https://www.ncbi.nlm.nih.gov/pubmed/23520541 http://dx.doi.org/10.1371/journal.pone.0058900 |
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