Particulate organic carbon is a sensitive indicator of soil degradation related to overgrazing in Patagonian wet and mesic meadows
Patagonian meadows are key for the development and sustainability of rural environments. However, they have been degraded due to a combination of weather conditions and overgrazing. Total soil organic carbon (TOC) has been found as a moderate indicator of meadow soil degradation by long-term heavy g...
| Autores principales: | , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Español |
| Publicado: |
Springer
2019
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/4738 https://link.springer.com/article/10.1007/s11273-017-9577-4 https://doi.org/10.1007/s11273-017-9577-4 |
| _version_ | 1855035375965175808 |
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| author | Enriquez, Andrea Soledad Cremona, Maria Victoria |
| author_browse | Cremona, Maria Victoria Enriquez, Andrea Soledad |
| author_facet | Enriquez, Andrea Soledad Cremona, Maria Victoria |
| author_sort | Enriquez, Andrea Soledad |
| collection | INTA Digital |
| description | Patagonian meadows are key for the development and sustainability of rural environments. However, they have been degraded due to a combination of weather conditions and overgrazing. Total soil organic carbon (TOC) has been found as a moderate indicator of meadow soil degradation by long-term heavy grazing. The aim of this study was to evaluate the particulate organic carbon (POC) (a more labile fraction of the soil organic matter) as an ecological indicator for assessing soil changes in natural Patagonian meadows, related to different longterm grazing managements. We worked in three locations along a precipitation gradient in Northern
Patagonia. Each location has wet and mesic meadows with good and poor grassland condition, attributed to two long-term grazing pressures (light and heavy). We sampled soil throughout the plant-growing season following the natural soil moisture fluctuations, and
quantified the POC content, the POC:TOC ratio, and the F[53 proportion. Along the different sampling dates, significant differences between good versus poor grassland condition were found in many cases in POC, a few in POC:TOC ratio, and none in F[53
proportion. The POC varies over time, in association with changes in the soil moisture (adjusted R2 vary between 0.76 and 0.99); therefore, the sampling date must be standardized (we recommend dry periods).
The POC appears to be a sensitive indicator when assessing the effect of different soil management practices on soil quality, an important step for meadow conservation, restoration and sustainable use, but further research is needed to validate this exploratory
study. |
| format | info:ar-repo/semantics/artículo |
| id | INTA4738 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Español |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | INTA47382019-03-26T12:39:31Z Particulate organic carbon is a sensitive indicator of soil degradation related to overgrazing in Patagonian wet and mesic meadows Enriquez, Andrea Soledad Cremona, Maria Victoria Tierras Húmedas Degradación del Suelo Wetlands Soil Degradation Humedales Mallines Región Patagónica Patagonian meadows are key for the development and sustainability of rural environments. However, they have been degraded due to a combination of weather conditions and overgrazing. Total soil organic carbon (TOC) has been found as a moderate indicator of meadow soil degradation by long-term heavy grazing. The aim of this study was to evaluate the particulate organic carbon (POC) (a more labile fraction of the soil organic matter) as an ecological indicator for assessing soil changes in natural Patagonian meadows, related to different longterm grazing managements. We worked in three locations along a precipitation gradient in Northern Patagonia. Each location has wet and mesic meadows with good and poor grassland condition, attributed to two long-term grazing pressures (light and heavy). We sampled soil throughout the plant-growing season following the natural soil moisture fluctuations, and quantified the POC content, the POC:TOC ratio, and the F[53 proportion. Along the different sampling dates, significant differences between good versus poor grassland condition were found in many cases in POC, a few in POC:TOC ratio, and none in F[53 proportion. The POC varies over time, in association with changes in the soil moisture (adjusted R2 vary between 0.76 and 0.99); therefore, the sampling date must be standardized (we recommend dry periods). The POC appears to be a sensitive indicator when assessing the effect of different soil management practices on soil quality, an important step for meadow conservation, restoration and sustainable use, but further research is needed to validate this exploratory study. Estación Experimental Agropecuaria Bariloche Fil: Enriquez, Andrea Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Cremona, Maria Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina 2019-03-26T12:18:40Z 2019-03-26T12:18:40Z 2018-06 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/4738 https://link.springer.com/article/10.1007/s11273-017-9577-4 0923-4861 1572-9834 https://doi.org/10.1007/s11273-017-9577-4 spa info:eu-repo/semantics/restrictedAccess application/pdf Springer Wetlands Ecology and Management 26 (3) : 345-357 (June 2018) |
| spellingShingle | Tierras Húmedas Degradación del Suelo Wetlands Soil Degradation Humedales Mallines Región Patagónica Enriquez, Andrea Soledad Cremona, Maria Victoria Particulate organic carbon is a sensitive indicator of soil degradation related to overgrazing in Patagonian wet and mesic meadows |
| title | Particulate organic carbon is a sensitive indicator of soil degradation related to overgrazing in Patagonian wet and mesic meadows |
| title_full | Particulate organic carbon is a sensitive indicator of soil degradation related to overgrazing in Patagonian wet and mesic meadows |
| title_fullStr | Particulate organic carbon is a sensitive indicator of soil degradation related to overgrazing in Patagonian wet and mesic meadows |
| title_full_unstemmed | Particulate organic carbon is a sensitive indicator of soil degradation related to overgrazing in Patagonian wet and mesic meadows |
| title_short | Particulate organic carbon is a sensitive indicator of soil degradation related to overgrazing in Patagonian wet and mesic meadows |
| title_sort | particulate organic carbon is a sensitive indicator of soil degradation related to overgrazing in patagonian wet and mesic meadows |
| topic | Tierras Húmedas Degradación del Suelo Wetlands Soil Degradation Humedales Mallines Región Patagónica |
| url | http://hdl.handle.net/20.500.12123/4738 https://link.springer.com/article/10.1007/s11273-017-9577-4 https://doi.org/10.1007/s11273-017-9577-4 |
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