Arid
DOI10.21829/myb.2018.2401898
Biomass and productivity in Mexican arid lands
Briones, Oscar1; Burquez, Alberto2; Martinez-Yrizar, Angelina2; Pavon, Numa3; Perroni, Yareni4
通讯作者Briones, Oscar
来源期刊MADERA Y BOSQUES
ISSN2448-7597
出版年2018
卷号24
英文摘要

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 mu g C g(-1) d(-1) +/- 5.44 mu g 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.


英文关键词carbon decomposition deserts litterfall primary productivity soil respiration
类型Review
语种西班牙语
国家Mexico
收录类别SCI-E
WOS记录号WOS:000456799200009
WOS关键词BELOW-GROUND PRODUCTIVITY ; FINE-ROOT BIOMASS ; ABOVEGROUND BIOMASS ; SEMIARID HIGHLANDS ; MESQUITE PROSOPIS ; NITROGEN-CONTENT ; DESERT SCRUB ; CARBON ; SOIL ; DECOMPOSITION
WOS类目Forestry
WOS研究方向Forestry
来源机构Universidad Nacional Autónoma de México
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/211562
作者单位1.Inst Ecol AC, Xalapa, Veracruz, Mexico;
2.Univ Nacl Autonoma Mexico, Inst Ecol, Hermosillo, Sonora, Mexico;
3.Univ Autonoma Estado Hidalgo, Ctr Invest Biol, Pachuca, Hidalgo, Mexico;
4.Univ Veracruzana, Inst Biotecnol & Ecol Aplicada, Xalapa, Veracruz, Mexico
推荐引用方式
GB/T 7714
Briones, Oscar,Burquez, Alberto,Martinez-Yrizar, Angelina,et al. Biomass and productivity in Mexican arid lands[J]. Universidad Nacional Autónoma de México,2018,24.
APA Briones, Oscar,Burquez, Alberto,Martinez-Yrizar, Angelina,Pavon, Numa,&Perroni, Yareni.(2018).Biomass and productivity in Mexican arid lands.MADERA Y BOSQUES,24.
MLA Briones, Oscar,et al."Biomass and productivity in Mexican arid lands".MADERA Y BOSQUES 24(2018).
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