Spatial distribution and tree cover of hillside and ravine forests in Uruguay: the challenges of mapping patchy ecosystems
The mapping and monitoring of forest ecosystems on a national scale is key to their management and conservation. Native forests in Uruguay are considered given their importance for biodiversity and ecosystem services. Here we evaluate the spatial distribution of the land cover class ‘hillside and ra...
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| Materyal Türü: | article |
| Dil: | İngilizce |
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2019
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| Online Erişim: | https://hdl.handle.net/20.500.12008/28741 |
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| _version_ | 1868889983822069760 |
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| author | Toranza Ciurlanti, Carolina |
| author2 | Lucas, C. Ceroni Acosta, Mauricio B. |
| author2_role | author author |
| author_browse | Ceroni Acosta, Mauricio B. Lucas, C. Toranza Ciurlanti, Carolina |
| author_facet | Toranza Ciurlanti, Carolina Lucas, C. Ceroni Acosta, Mauricio B. |
| author_role | author |
| collection | COLIBRI |
| dc.contributor.none.fl_str_mv | Toranza Ciurlanti Carolina, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Ecología y Ciencias Ambientales. Lucas C., Universidad de la República (Uruguay). CENUR. Ceroni M., Universidad de la República (Uruguay). CENUR. |
| dc.creator.none.fl_str_mv | Toranza Ciurlanti, Carolina Lucas, C. Ceroni Acosta, Mauricio B. |
| dc.date.none.fl_str_mv | 2019 2021-07-28T15:56:23Z 2021-07-28T15:56:23Z |
| dc.format.none.fl_str_mv | 12 h. application/pdf |
| dc.identifier.none.fl_str_mv | Toranza Ciurlanti, C, Lucas, C y Ceroni, M. "Spatial Distribution and Tree Cover of Hillside and Ravine Forests in Uruguay: the Challenges of Mapping Patchy Ecosystems". Agrociencia Uruguay. [en línea] 2019, 23(2) : 135-146. 12 h. DOI: 10.31285/agro.23.85 2301-1548 https://hdl.handle.net/20.500.12008/28741 10.31285/agro.23.85. |
| dc.language.none.fl_str_mv | en eng |
| dc.publisher.none.fl_str_mv | Universidad de la República. Facultad de Agronomía |
| dc.relation.none.fl_str_mv | Agrociencia Uruguay, 2019, 23 (2) : 135-146 |
| dc.rights.none.fl_str_mv | info:eu-repo/semantics/openAccess Licencia Creative Commons Atribución (CC - By 4.0) |
| dc.source.none.fl_str_mv | reponame:COLIBRI instname:Universidad de la República instacron:Universidad de la República |
| dc.subject.none.fl_str_mv | Subtropical forests NDVI Canopy Southeastern South America Pampean province |
| dc.title.none.fl_str_mv | Spatial distribution and tree cover of hillside and ravine forests in Uruguay: the challenges of mapping patchy ecosystems |
| dc.type.none.fl_str_mv | Artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| description | The mapping and monitoring of forest ecosystems on a national scale is key to their management and conservation. Native forests in Uruguay are considered given their importance for biodiversity and ecosystem services. Here we evaluate the spatial distribution of the land cover class ‘hillside and ravine forest’ —a subclass of native forest characterized by patches and transition zones with native grasslands— using Landsat images (30 x 30 m) from 2014 and 2015 and high-resolution images from Google Earth. To evaluate spatial heterogeneity within hillside forests, we then used highresolution SPOT images of 1 km2 from 1998-2012 to evaluate differences in the normalized difference vegetation index (NDVI) among canopy coverage categories. The hillside and ravine forest class were characterized as a composite cover class with an average canopy coverage of 69 ± 23%, variability of wich was reflected in NDVI values. The total area of this class in 2015 was estimated as 334,480 ha, somewhat less than an earlier 2008 estimate (384,240 ha). Among the potential errors in delineating hillside forests using Landsat images, there was the classification of «forest» in areas characterized by grassland and a tree canopy cover <25 %. This potential error in delimitation at broader scales led to the overestimation of hillside and ravine forest area in southeastern Uruguay, but an underestimation in northern Uruguay. Our study highlights the large discrepancies in the estimation of the distribution of hillside and ravine forest at different spatial scales, and also indicates the potential of NDVI to evaluate the heterogeneity of this forest within the same cover class. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | anni_2367a4fcb49f6baecbe6fbb163ebc9fa |
| identifier_str_mv | Toranza Ciurlanti, C, Lucas, C y Ceroni, M. "Spatial Distribution and Tree Cover of Hillside and Ravine Forests in Uruguay: the Challenges of Mapping Patchy Ecosystems". Agrociencia Uruguay. [en línea] 2019, 23(2) : 135-146. 12 h. DOI: 10.31285/agro.23.85 2301-1548 10.31285/agro.23.85. |
| instacron_str | Universidad de la República |
| institution | Universidad de la República |
| instname_str | Universidad de la República |
| language | eng |
| language_invalid_str_mv | en |
| network_acronym_str | anni |
| network_name_str | oai-lr-anni |
| oai_identifier_str | oai:colibri.udelar.edu.uy:20.500.12008/28741 |
| publishDate | 2019 |
| publishDateSort | 2019 |
| publisher.none.fl_str_mv | Universidad de la República. Facultad de Agronomía |
| reponame_str | COLIBRI |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | Licencia Creative Commons Atribución (CC - By 4.0) |
| spelling | Spatial distribution and tree cover of hillside and ravine forests in Uruguay: the challenges of mapping patchy ecosystemsToranza Ciurlanti, CarolinaLucas, C.Ceroni Acosta, Mauricio B.Subtropical forestsNDVICanopySoutheastern South AmericaPampean provinceThe mapping and monitoring of forest ecosystems on a national scale is key to their management and conservation. Native forests in Uruguay are considered given their importance for biodiversity and ecosystem services. Here we evaluate the spatial distribution of the land cover class ‘hillside and ravine forest’ —a subclass of native forest characterized by patches and transition zones with native grasslands— using Landsat images (30 x 30 m) from 2014 and 2015 and high-resolution images from Google Earth. To evaluate spatial heterogeneity within hillside forests, we then used highresolution SPOT images of 1 km2 from 1998-2012 to evaluate differences in the normalized difference vegetation index (NDVI) among canopy coverage categories. The hillside and ravine forest class were characterized as a composite cover class with an average canopy coverage of 69 ± 23%, variability of wich was reflected in NDVI values. The total area of this class in 2015 was estimated as 334,480 ha, somewhat less than an earlier 2008 estimate (384,240 ha). Among the potential errors in delineating hillside forests using Landsat images, there was the classification of «forest» in areas characterized by grassland and a tree canopy cover <25 %. This potential error in delimitation at broader scales led to the overestimation of hillside and ravine forest area in southeastern Uruguay, but an underestimation in northern Uruguay. Our study highlights the large discrepancies in the estimation of the distribution of hillside and ravine forest at different spatial scales, and also indicates the potential of NDVI to evaluate the heterogeneity of this forest within the same cover class.Universidad de la República. Facultad de AgronomíaToranza Ciurlanti Carolina, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Ecología y Ciencias Ambientales.Lucas C., Universidad de la República (Uruguay). CENUR.Ceroni M., Universidad de la República (Uruguay). CENUR.2021-07-28T15:56:23Z2021-07-28T15:56:23Z2019Artículoinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion12 h.application/pdfToranza Ciurlanti, C, Lucas, C y Ceroni, M. "Spatial Distribution and Tree Cover of Hillside and Ravine Forests in Uruguay: the Challenges of Mapping Patchy Ecosystems". Agrociencia Uruguay. [en línea] 2019, 23(2) : 135-146. 12 h. DOI: 10.31285/agro.23.852301-1548https://hdl.handle.net/20.500.12008/2874110.31285/agro.23.85.reponame:COLIBRIinstname:Universidad de la Repúblicainstacron:Universidad de la RepúblicaenengAgrociencia Uruguay, 2019, 23 (2) : 135-146Las obras depositadas en el Repositorio se rigen por la Ordenanza de los Derechos de la Propiedad Intelectual de la Universidad de la República.(Res. Nº 91 de C.D.C. de 8/III/1994 – D.O. 7/IV/1994) y por la Ordenanza del Repositorio Abierto de la Universidad de la República (Res. Nº 16 de C.D.C. de 07/10/2014)info:eu-repo/semantics/openAccessLicencia Creative Commons Atribución (CC - By 4.0)oai:colibri.udelar.edu.uy:20.500.12008/287412026-04-14T10:09:40Z |
| spellingShingle | Spatial distribution and tree cover of hillside and ravine forests in Uruguay: the challenges of mapping patchy ecosystems Toranza Ciurlanti, Carolina Subtropical forests NDVI Canopy Southeastern South America Pampean province |
| status_str | publishedVersion |
| title | Spatial distribution and tree cover of hillside and ravine forests in Uruguay: the challenges of mapping patchy ecosystems |
| title_full | Spatial distribution and tree cover of hillside and ravine forests in Uruguay: the challenges of mapping patchy ecosystems |
| title_fullStr | Spatial distribution and tree cover of hillside and ravine forests in Uruguay: the challenges of mapping patchy ecosystems |
| title_full_unstemmed | Spatial distribution and tree cover of hillside and ravine forests in Uruguay: the challenges of mapping patchy ecosystems |
| title_short | Spatial distribution and tree cover of hillside and ravine forests in Uruguay: the challenges of mapping patchy ecosystems |
| title_sort | Spatial distribution and tree cover of hillside and ravine forests in Uruguay: the challenges of mapping patchy ecosystems |
| topic | Subtropical forests NDVI Canopy Southeastern South America Pampean province |
| url | https://hdl.handle.net/20.500.12008/28741 |