2021
Díaz-Álvarez, E. A.; de la Barrera, E.
Influence of land-use on the C and N status of a C4 invasive grass in a semi-arid region: implications for biomonitoring Journal Article
In: Plants, vol. 10, pp. 942, 2021.
Abstract | Links | BibTeX | Tags: atmospheric pollution, biomonitoring, buffel grass, carbon, global ecology, invasive species, nitrogen, pollution, Sonora, stable isotopes
@article{Díaz-Álvarez2021bb,
title = {Influence of land-use on the C and N status of a C4 invasive grass in a semi-arid region: implications for biomonitoring},
author = {E. A. Díaz-Álvarez and E. de la Barrera },
url = {https://www.mdpi.com/2223-7747/10/5/942},
doi = {10.3390/plants10050942},
year = {2021},
date = {2021-05-09},
journal = {Plants},
volume = {10},
pages = {942},
abstract = {Biomonitoring of atmospheric pollution is an increasingly accepted practice. However, most existing biomonitors are usually epiphytic species from mesic environments. This work assessed the suitability of buffelgrass (Cenchrus ciliaris), an invasive C4 grass in northwestern Mexico, as a biomonitor, by means of the spatial distribution of the carbon and nitrogen content and isotopic signatures for grass samples collected from urban, agricultural, and natural areas throughout the state of Sonora. We found the highest tissue carbon content of 45.6% (on a dry weight basis) and highest nitrogen content of 3.31% for buffelgrass from the Yaqui Valley. We also found the lowest δ13C of −15.9‰, and the highest δ15N of 16.7‰ in the same region. In contrast, the lowest carbon and nitrogen content of 39.4 and 1.49% were found for Bahía de Kino and Río Sonora mountains, respectively. The lowest δ15N of 2.18‰ and the highest δ13C of −13.7‰ were measured for two remote locations. These results show the influence that pollutant emissions, including agriculture and transportation, have on elemental and isotopic composition of vegetation. Buffelgrass is most adequate for tracking carbon and nitrogen emissions in arid environments and for determining alterations on nitrogen soil reactions, as a first approximation for saturation.},
keywords = {atmospheric pollution, biomonitoring, buffel grass, carbon, global ecology, invasive species, nitrogen, pollution, Sonora, stable isotopes},
pubstate = {published},
tppubtype = {article}
}
Biomonitoring of atmospheric pollution is an increasingly accepted practice. However, most existing biomonitors are usually epiphytic species from mesic environments. This work assessed the suitability of buffelgrass (Cenchrus ciliaris), an invasive C4 grass in northwestern Mexico, as a biomonitor, by means of the spatial distribution of the carbon and nitrogen content and isotopic signatures for grass samples collected from urban, agricultural, and natural areas throughout the state of Sonora. We found the highest tissue carbon content of 45.6% (on a dry weight basis) and highest nitrogen content of 3.31% for buffelgrass from the Yaqui Valley. We also found the lowest δ13C of −15.9‰, and the highest δ15N of 16.7‰ in the same region. In contrast, the lowest carbon and nitrogen content of 39.4 and 1.49% were found for Bahía de Kino and Río Sonora mountains, respectively. The lowest δ15N of 2.18‰ and the highest δ13C of −13.7‰ were measured for two remote locations. These results show the influence that pollutant emissions, including agriculture and transportation, have on elemental and isotopic composition of vegetation. Buffelgrass is most adequate for tracking carbon and nitrogen emissions in arid environments and for determining alterations on nitrogen soil reactions, as a first approximation for saturation.
Paredes-García, S.; Moreno-Casasola, P.; de la Barrera, E.; García-Oliva, F.; Lindig-Cisneros, R.
Biomasa y carbono almacenado en un humedal continental en Cuitzeo, Michoacán, México Journal Article
In: Tecnología y Ciencias del Agua, vol. 12, pp. 416-441, 2021, ISSN: 2007-2422.
Abstract | Links | BibTeX | Tags: carbon, carbon sequestration, ecosystem services, fire, hydrophyte, wetland
@article{Paredes-García2020,
title = {Biomasa y carbono almacenado en un humedal continental en Cuitzeo, Michoacán, México},
author = {S. Paredes-García and P. Moreno-Casasola and E. de la Barrera and F. García-Oliva and R. Lindig-Cisneros},
url = {http://revistatyca.org.mx/index.php/tyca/article/view/2582/2307},
doi = {10.24850/j-tyca-2021-02-09},
issn = {2007-2422},
year = {2021},
date = {2021-03-02},
journal = {Tecnología y Ciencias del Agua},
volume = {12},
pages = {416-441},
abstract = {Wetlands provide multiple ecosystem services, such as carbon sequestration both in living biomass and in the soil. In México, most studies have been done in coastal wetlands, and for this reason
information on continental wetlands is scarce. Two research questions were answered: how much carbon is stored in the biomass and in the soil of a continental wetland?; and, which is the spatial structure and distribution of the dominant plant species? The study site is a floating wetland in the eastern part of lake Cuitzeo where field work was carried out during 2’17 and 2018. Following a
transect six points were selected and aerial biomass was harvested in one square meter plots, and a soil profile was excavated. Carbon content was analyzed from samples of the dominant species and
aparent density and carbon stored in the soil determined. Satellite imagery was analized to obtain the total area of the wetland in the period 2003- 2017 and the area damaged by fires was calculated.
Aerial biomass was 173.1 ± 61.1 kg/ha -1 , with a carbon storage of 70.4 ± 25.4 kg-C ha -1 . The wetland substrate contains 168 ± 10 Mg C ha -1 . It was detected that the invasive species Phragmites australis has increased its cover in 10 % of the toal wetland area from 2010 a 2017. Two major fires were detected, the largest in 2016 that covered 242 ha of a total of 535 ha.},
keywords = {carbon, carbon sequestration, ecosystem services, fire, hydrophyte, wetland},
pubstate = {published},
tppubtype = {article}
}
Wetlands provide multiple ecosystem services, such as carbon sequestration both in living biomass and in the soil. In México, most studies have been done in coastal wetlands, and for this reason
information on continental wetlands is scarce. Two research questions were answered: how much carbon is stored in the biomass and in the soil of a continental wetland?; and, which is the spatial structure and distribution of the dominant plant species? The study site is a floating wetland in the eastern part of lake Cuitzeo where field work was carried out during 2’17 and 2018. Following a
transect six points were selected and aerial biomass was harvested in one square meter plots, and a soil profile was excavated. Carbon content was analyzed from samples of the dominant species and
aparent density and carbon stored in the soil determined. Satellite imagery was analized to obtain the total area of the wetland in the period 2003- 2017 and the area damaged by fires was calculated.
Aerial biomass was 173.1 ± 61.1 kg/ha -1 , with a carbon storage of 70.4 ± 25.4 kg-C ha -1 . The wetland substrate contains 168 ± 10 Mg C ha -1 . It was detected that the invasive species Phragmites australis has increased its cover in 10 % of the toal wetland area from 2010 a 2017. Two major fires were detected, the largest in 2016 that covered 242 ha of a total of 535 ha.
information on continental wetlands is scarce. Two research questions were answered: how much carbon is stored in the biomass and in the soil of a continental wetland?; and, which is the spatial structure and distribution of the dominant plant species? The study site is a floating wetland in the eastern part of lake Cuitzeo where field work was carried out during 2’17 and 2018. Following a
transect six points were selected and aerial biomass was harvested in one square meter plots, and a soil profile was excavated. Carbon content was analyzed from samples of the dominant species and
aparent density and carbon stored in the soil determined. Satellite imagery was analized to obtain the total area of the wetland in the period 2003- 2017 and the area damaged by fires was calculated.
Aerial biomass was 173.1 ± 61.1 kg/ha -1 , with a carbon storage of 70.4 ± 25.4 kg-C ha -1 . The wetland substrate contains 168 ± 10 Mg C ha -1 . It was detected that the invasive species Phragmites australis has increased its cover in 10 % of the toal wetland area from 2010 a 2017. Two major fires were detected, the largest in 2016 that covered 242 ha of a total of 535 ha.
2004
de la Barrera, E.; Nobel, P. S.
Carbon and water relations for developing fruits of Opuntia ficus-indica (L.) Miller, including effects of drought and gibberellic acid Journal Article
In: Journal of Experimental Botany, vol. 55, no. 397, pp. 719-729, 2004.
Links | BibTeX | Tags: abscisic acid, cactus, CAM, carbon, drought, fruit, gibberellic acid, opuntia, photosynthesis, water
@article{delaBarrera2004b,
title = {Carbon and water relations for developing fruits of Opuntia ficus-indica (L.) Miller, including effects of drought and gibberellic acid},
author = {E. de la Barrera and P. S. Nobel },
url = {http://agro.mx/wp-content/uploads/2016/06/009-De-la-Barrera-Nobel-2004-J-Exp-Bot.pdf},
year = {2004},
date = {2004-03-03},
journal = {Journal of Experimental Botany},
volume = {55},
number = {397},
pages = {719-729},
keywords = {abscisic acid, cactus, CAM, carbon, drought, fruit, gibberellic acid, opuntia, photosynthesis, water},
pubstate = {published},
tppubtype = {article}
}