Human pressure on water quality and water yield in the upper Grijalva river basin in the Mexico-Guatemala border
Forest ecosystems are major providers of high quality water and contribute to maintain a better distribution of base flows during the year. However, these environmental services have been adversely affected by human pressure due to the decline and deterioration of forested areas and the inadequate m...
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| Online Access: | https://repositorio.catie.ac.cr/handle/11554/8436 http://dx.doi.org/10.1016/j.ecohyd.2015.12.002 |
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RepoCATIE84362023-11-16T16:37:42Z Human pressure on water quality and water yield in the upper Grijalva river basin in the Mexico-Guatemala border Laino Guanes, Rafaela González Espinoza, Mario Ramírez Marcial, Neptalí Bello Mendoza, Ricardo Jiménez Otárola, Francisco Casanoves, Fernando Musálem Castillejos, Karim Forest ecosystems are major providers of high quality water and contribute to maintain a better distribution of base flows during the year. However, these environmental services have been adversely affected by human pressure due to the decline and deterioration of forested areas and the inadequate management of water resources. To better understand the relations between human population, forest area and water quality and yield, at a regional level, we studied six catchments located in the upper Grijalva river basin in the border between Guatemala and Mexico. Measurements of twelve water quality parameters and water yield from nine sampling periods during 2011–2013 were analyzed through PLS (partial least squares) regression, ANOVA and linear mixed models to assess the season effect on water quality and the forest cover effect on water yield. An ordination by PCA (principal components analysis) and Pearson's pair-wise correlations were used to identify association between hydrological and social catchment features (forest cover, protection of riparian buffer strips, population density and urban areas). Our results suggest that overall water quality is higher during the dry season (higher values of dissolved oxygen and lower levels of total dissolved solids, total suspended solids, total phosphorus, chemical oxygen demand and temperature were observed). Water yield is positively related to forest cover and riparian buffer strips, becoming essential in maintaining water security for local populations. Major threats to water flux and their quality are related to human pressures and untreated wastewater discharges, which reduce water quality of the receiving rivers. 2016-09-06T15:02:43Z 2016-09-06T15:02:43Z 2016 Artículo https://repositorio.catie.ac.cr/handle/11554/8436 http://dx.doi.org/10.1016/j.ecohyd.2015.12.002 restrictedAccess en Ecohydrology & Hydrobiology application/pdf ELSEVIER |
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Centro Agronómico Tropical de Investigación y Enseñanza |
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Repositorio CATIE |
| language |
Inglés |
| description |
Forest ecosystems are major providers of high quality water and contribute to maintain a better distribution of base flows during the year. However, these environmental services have been adversely affected by human pressure due to the decline and deterioration of forested areas and the inadequate management of water resources. To better understand the relations between human population, forest area and water quality and yield, at a regional level, we studied six catchments located in the upper Grijalva river basin in the border between Guatemala and Mexico. Measurements of twelve water quality parameters and water yield from nine sampling periods during 2011–2013 were analyzed through PLS (partial least squares) regression, ANOVA and linear mixed models to assess the season effect on water quality and the forest cover effect on water yield. An ordination by PCA (principal components analysis) and Pearson's pair-wise correlations were used to identify association between hydrological and social catchment features (forest cover, protection of riparian buffer strips, population density and urban areas). Our results suggest that overall water quality is higher during the dry season (higher values of dissolved oxygen and lower levels of total dissolved solids, total suspended solids, total phosphorus, chemical oxygen demand and temperature were observed). Water yield is positively related to forest cover and riparian buffer strips, becoming essential in maintaining water security for local populations. Major threats to water flux and their quality are related to human pressures and untreated wastewater discharges, which reduce water quality of the receiving rivers. |
| format |
Artículo |
| author |
Laino Guanes, Rafaela González Espinoza, Mario Ramírez Marcial, Neptalí Bello Mendoza, Ricardo Jiménez Otárola, Francisco Casanoves, Fernando Musálem Castillejos, Karim |
| spellingShingle |
Laino Guanes, Rafaela González Espinoza, Mario Ramírez Marcial, Neptalí Bello Mendoza, Ricardo Jiménez Otárola, Francisco Casanoves, Fernando Musálem Castillejos, Karim Human pressure on water quality and water yield in the upper Grijalva river basin in the Mexico-Guatemala border |
| author_facet |
Laino Guanes, Rafaela González Espinoza, Mario Ramírez Marcial, Neptalí Bello Mendoza, Ricardo Jiménez Otárola, Francisco Casanoves, Fernando Musálem Castillejos, Karim |
| author_sort |
Laino Guanes, Rafaela |
| title |
Human pressure on water quality and water yield in the upper Grijalva river basin in the Mexico-Guatemala border |
| title_short |
Human pressure on water quality and water yield in the upper Grijalva river basin in the Mexico-Guatemala border |
| title_full |
Human pressure on water quality and water yield in the upper Grijalva river basin in the Mexico-Guatemala border |
| title_fullStr |
Human pressure on water quality and water yield in the upper Grijalva river basin in the Mexico-Guatemala border |
| title_full_unstemmed |
Human pressure on water quality and water yield in the upper Grijalva river basin in the Mexico-Guatemala border |
| title_sort |
human pressure on water quality and water yield in the upper grijalva river basin in the mexico-guatemala border |
| publisher |
ELSEVIER |
| publishDate |
2016 |
| url |
https://repositorio.catie.ac.cr/handle/11554/8436 http://dx.doi.org/10.1016/j.ecohyd.2015.12.002 |
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