Biomass and productivity in Mexican arid lands
Arid lands cover 54% of Mexico where over 40% of the total population inhabit these areas. Studies on the ecosystem functioning of the Mexican arid lands are still very limited. These studies have shown that mean aboveground biomass (23.2 Mg ha-1 ± 4.15, 23 sites) and belowground biomass (11.2 Mg ha...
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| Formaat: | Online |
| Taal: | spa |
| Gepubliceerd in: |
Instituto de Ecología, A.C.
2018
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| Online toegang: | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2401898 |
| _version_ | 1799769378492776448 |
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| author | Briones, Oscar Búrquez, Alberto Martínez-Yrízar, Angelina Pavón, Numa Perroni, Yareni |
| author_facet | Briones, Oscar Búrquez, Alberto Martínez-Yrízar, Angelina Pavón, Numa Perroni, Yareni |
| author_sort | Briones, Oscar |
| collection | MYB |
| description | Arid lands cover 54% of Mexico where over 40% of the total population inhabit these areas. Studies on the ecosystem functioning of the Mexican arid lands are still very limited. These studies have shown that mean aboveground biomass (23.2 Mg ha-1 ± 4.15, 23 sites) and belowground biomass (11.2 Mg ha-1 ± 3.54 Mg ha-1, 7 sites) were higher than those of the deserts of the world and their higher values were within the range for tropical deciduous forests (TDF). Net primary productivity in the driest regions of Mexico (< 0.5 Mg ha-1 y-1 - 3.4 Mg ha-1 y-1) was similar to the mean of the deserts of the world, but in the less dry regions it was almost four times larger and similar to the drier TDF. Total litterfall (2.85 Mg ha-1 y-1 ± 0.64 Mg ha-1 y-1, 12 sites) was higher than in the North American deserts and close to the lower end of values for TDF´s. Litter decomposition rate (0.001 g C y-1 - 4 g C y-1) was lower than in non-desert regions. Microbial respiration of soil (28.4 µg C g-1 d-1 ± 5.44 µg C g-1 d-1, 10 sites) depended mainly on precipitation and the concentration of carbon and nitrogen. Water availability is the main factor controlling biomass and productivity in the arid lands of Mexico. Since the sensitivity/resilience to land use change and other persistent global change pressures is still uncertain, more research on the dynamics of arid ecosystems is urgently needed. |
| format | Online |
| id | oai:oai.myb.ojs.inecol.mx:article-1898 |
| institution | Madera y Bosques |
| language | spa |
| publishDate | 2018 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.myb.ojs.inecol.mx:article-18982022-11-29T22:57:19Z Biomass and productivity in Mexican arid lands Biomasa y productividad en las zonas áridas mexicanas Briones, Oscar Búrquez, Alberto Martínez-Yrízar, Angelina Pavón, Numa Perroni, Yareni carbon decomposition deserts litterfall primary productivity soil respiration carbono descomposición desiertos hojarasca productividad primaria respiración de suelo Arid lands cover 54% of Mexico where over 40% of the total population inhabit these areas. Studies on the ecosystem functioning of the Mexican arid lands are still very limited. These studies have shown that mean aboveground biomass (23.2 Mg ha-1 ± 4.15, 23 sites) and belowground biomass (11.2 Mg ha-1 ± 3.54 Mg ha-1, 7 sites) were higher than those of the deserts of the world and their higher values were within the range for tropical deciduous forests (TDF). Net primary productivity in the driest regions of Mexico (< 0.5 Mg ha-1 y-1 - 3.4 Mg ha-1 y-1) was similar to the mean of the deserts of the world, but in the less dry regions it was almost four times larger and similar to the drier TDF. Total litterfall (2.85 Mg ha-1 y-1 ± 0.64 Mg ha-1 y-1, 12 sites) was higher than in the North American deserts and close to the lower end of values for TDF´s. Litter decomposition rate (0.001 g C y-1 - 4 g C y-1) was lower than in non-desert regions. Microbial respiration of soil (28.4 µg C g-1 d-1 ± 5.44 µg C g-1 d-1, 10 sites) depended mainly on precipitation and the concentration of carbon and nitrogen. Water availability is the main factor controlling biomass and productivity in the arid lands of Mexico. Since the sensitivity/resilience to land use change and other persistent global change pressures is still uncertain, more research on the dynamics of arid ecosystems is urgently needed. Las zonas áridas mexicanas ocupan 54% de la superficie y las habita más de 40% de la población nacional. Aunque existen pocos estudios sobre la biomasa y flujo de energía de las zonas áridas mexicanas, estos muestran que la biomasa aérea (23.2 Mg ha-1 ± 4.15 Mg ha-1, 23 sitios) y subterránea (11.2 Mg ha-1 ± 3.54 Mg ha-1, 7 sitios) fue superior al promedio de los desiertos del mundo y sus valores altos estuvieron cercanos al intervalo del bosque tropical caducifolio (BTC). La productividad primaria neta de las regiones más secas de las zonas áridas mexicanas (< 0.5 Mg ha-1 año-1 - 3.4 Mg ha-1 año-1) fue similar al promedio de los desiertos del mundo, pero en las regiones menos secas fue casi cuatro veces mayor y similar a los BTC más secos. La producción de hojarasca (2.85 Mg ha-1 año-1 ± 0.64 Mg ha-1 año-1, 12 sitios) fue mayor a los desiertos norteamericanos y en sitios mésicos fue cercana al BTC. La producción de hojas, como en la mayoría de los ecosistemas terrestres, fue el componente que más contribuyó a la producción anual de hojarasca. La tasa de descomposición de la hojarasca (0.001 g C año-1 - 0.44 g C año-1) fue más lenta en comparación con bosques. La respiración microbiana del suelo (28.4 µg C g-1 d-1 ± 5.44 µg C g-1 d-1, 10 sitios) dependió principalmente de la precipitación y la concentración de carbono y nitrógeno. La disponibilidad de agua es el principal factor que regula la biomasa y productividad primaria en las zonas áridas mexicanas. Urge incrementar las investigaciones sobre la dinámica de los ecosistemas áridos, cuya sensibilidad/resiliencia al cambio de uso de suelo y otras presiones persistentes de cambio global es aún incierta. Instituto de Ecología, A.C. 2018-12-04 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf application/pdf application/pdf application/pdf application/pdf https://myb.ojs.inecol.mx/index.php/myb/article/view/e2401898 10.21829/myb.2018.2401898 Madera y Bosques; Vol. 24 (2018): Special issue. Carbon in terrestrial ecosystems Madera y Bosques; Vol. 24 (2018): Número especial. Carbono en ecosistemas terrestres 2448-7597 1405-0471 spa https://myb.ojs.inecol.mx/index.php/myb/article/view/e2401898/1836 https://myb.ojs.inecol.mx/index.php/myb/article/view/e2401898/1837 https://myb.ojs.inecol.mx/index.php/myb/article/view/e2401898/1838 https://myb.ojs.inecol.mx/index.php/myb/article/view/e2401898/1839 https://myb.ojs.inecol.mx/index.php/myb/article/view/e2401898/1840 Derechos de autor 2018 Madera y Bosques |
| spellingShingle | Briones, Oscar Búrquez, Alberto Martínez-Yrízar, Angelina Pavón, Numa Perroni, Yareni Biomass and productivity in Mexican arid lands |
| title | Biomass and productivity in Mexican arid lands |
| title_full | Biomass and productivity in Mexican arid lands |
| title_fullStr | Biomass and productivity in Mexican arid lands |
| title_full_unstemmed | Biomass and productivity in Mexican arid lands |
| title_short | Biomass and productivity in Mexican arid lands |
| title_sort | biomass and productivity in mexican arid lands |
| url | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2401898 |
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