干旱区生态环境知识资源中心(Arid): Soil carbon stocks of semi-arid grasslands in northern Mexico

Arid

DOI	10.1071/RJ21021
	Soil carbon stocks of semi-arid grasslands in northern Mexico
	Jurado-Guerra, Pedro; Saucedo-Teran, Ruben; Morales-Nieto, Carlos; Juarez-Morales, Martin; Sosa-Perez, Gabriel; Alvarez-Holguin, Alan
通讯作者	Alvarez-Holguin, A (corresponding author), CIRNOC INIFAP, Campo Expt La Campana, Km 33 Carretera Chihuahua Ojinaga, Aldama 32910, Chihuahua, Mexico.
来源期刊	RANGELAND JOURNAL
ISSN	1036-9872
EISSN	1834-7541
出版年	2021
英文摘要	Soil organic carbon (SOC) is important, but research on SOC in Mexican semi-arid grasslands is limited. The objective of this research was to estimate SOC and develop an ecological model to predict soil carbon stocks (SCS) in the semi-arid grasslands of northern Mexico. Sites with different plant cover were selected along the Central Valleys region, and soil samples collected at two microsites (bare soil and beneath grass) at two depths (0-15 cm and 15-30 cm) and analysed for SOC. Plant cover, precipitation, temperature, soil texture and elevation were included as predictor variables to create a SCS prediction model through correlation and regression analyses. SOC varied from 0.465% +/- 0.04 (mean +/- s.e.m.) in low plant cover-sandy loam soil-low rainfall grasslands to 2.77% +/- 0.29 in high plant cover-clay loam soil-high rainfall grasslands. The SOC was higher under grass than bare soil at all sites, while most sites showed similar SOC across soil depth. The prediction model integrated plant cover, mean annual precipitation, elevation and soil sand content (P < 0.0001) as explanatory variables, and reasonably predicted SCS (R-2 = 0.798) in semi-arid grasslands of northern Mexico. Our model can be used in grasslands with similar vegetation, climate and soil in northern Mexico, although extrapolation requires caution since further validation at different sites is required.
英文关键词	forage grass cover semi-arid rangelands soil carbon model soil organic matter
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000721190500001
WOS关键词	SPATIAL VARIABILITY ; ORGANIC-CARBON ; SHORTGRASS STEPPE ; MIXED-GRASS ; NITROGEN ; MATTER ; SEQUESTRATION ; MANAGEMENT ; TEXTURE ; STORAGE
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374613
作者单位	[Jurado-Guerra, Pedro; Saucedo-Teran, Ruben; Sosa-Perez, Gabriel; Alvarez-Holguin, Alan] CIRNOC INIFAP, Campo Expt La Campana, Km 33 Carretera Chihuahua Ojinaga, Aldama 32910, Chihuahua, Mexico; [Morales-Nieto, Carlos; Juarez-Morales, Martin] Univ Autonoma Chihuahua, Fac Zootecnia & Ecol, Dept Recursos Nat, Chihuahua 31031, Mexico
推荐引用方式 GB/T 7714	Jurado-Guerra, Pedro,Saucedo-Teran, Ruben,Morales-Nieto, Carlos,et al. Soil carbon stocks of semi-arid grasslands in northern Mexico[J],2021.
APA	Jurado-Guerra, Pedro,Saucedo-Teran, Ruben,Morales-Nieto, Carlos,Juarez-Morales, Martin,Sosa-Perez, Gabriel,&Alvarez-Holguin, Alan.(2021).Soil carbon stocks of semi-arid grasslands in northern Mexico.RANGELAND JOURNAL.
MLA	Jurado-Guerra, Pedro,et al."Soil carbon stocks of semi-arid grasslands in northern Mexico".RANGELAND JOURNAL (2021).