Cerrar

No. de sistema: 000020074

LDR _ _ 00000nab^^22^^^^^za^4500
008 _ _ 161019m20169999mx^^r^p^^^^^^z0^^^a0eng^d
040 _ _ a| ECO
c| ECO
043 _ _ a| n-mx-cp
a| ncgt---
044 _ _ a| xx
245 0 0 a| Human pressure on water quality and water yield in the upper Grijalva river basin in the Mexico-Guatemala border
506 _ _ a| Solicítelo con su bibliotecario/a
520 1 _ a| 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.
650 _ 4 a| Calidad del agua
650 _ 4 a| Gestión del agua
650 _ 4 a| Cobertura vegetal
650 _ 4 a| Uso de la tierra
650 _ 4 a| Densidad de población
651 _ 4 a| Río Xelajú, Motozintla (Chiapas, México)
651 _ 4 a| Allende, Motozintla (Chiapas, México)
651 _ 4 a| Buenos Aires, Motozintla (Chiapas, México)
651 _ 4 a| Molino, Motozintla (Chiapas, México)
651 _ 4 a| El Carrizal, Motozintla (Chiapas, México)
651 _ 4 a| Cuenca Grijalva
651 _ 4 a| Guatemala
700 1 _ a| Laino Guanes, Rafaela María
700 1 _ a| González Espinosa, Mario
d| 1950-
e| coaut.
700 1 _ a| Ramírez Marcial, Neptalí
d| 1963-
e| coaut.
700 1 _ a| Bello Mendoza, Ricardo
e| coaut.
700 1 _ a| Jiménez Otárola, Francisco
e| coaut.
700 1 _ a| Casanoves, Fernando
e| coaut.
700 1 _ a| Musálem Castillejos, Karim
c| Doctor
e| coaut.
773 0 _
t| Ecohydrology & Hydrobiology
g| Vol. 16, no. 3 (August 2016), p. 149–159
x| 1642-3593
901 _ _ a| Artículo con arbitraje
902 _ _ a| GOG / MM
904 _ _ a| Octubre 2015
905 _ _ a| Artecosur
905 _ _ a| Artfrosur
905 _ _ a| Agua
905 _ _ a| Biblioelectrónica
906 _ _ a| Producción Académica ECOSUR
LNG eng
Cerrar
Human pressure on water quality and water yield in the upper Grijalva river basin in the Mexico-Guatemala border
Laino Guanes, Rafaela María (autor)
González Espinosa, Mario, 1950- (autor)
Ramírez Marcial, Neptalí, 1963- (autor)
Bello Mendoza, Ricardo (autor)
Jiménez Otárola, Francisco (autor)
Casanoves, Fernando (autor)
Musálem Castillejos, Karim (autor)
Nota: Solicítelo con su bibliotecario/a
Contenido en: Ecohydrology & Hydrobiology. Vol. 16, no. 3 (August 2016), p. 149–159. ISSN: 1642-3593
No. de sistema: 20074
Tipo: - Artículo con arbitraje
PDF


Inglés

"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."