干旱区生态环境知识资源中心(Arid): Soil Horizon erodibility assessment in an area of Mexico susceptible to gully erosion

Arid

DOI	10.1016/j.jsames.2021.103497
	Soil Horizon erodibility assessment in an area of Mexico susceptible to gully erosion
	Casabella-Gonzalez, M. J.; Borselli, L.; Garcia-Meza, J., V
通讯作者	Casabella-Gonzalez, MJ ; Borselli, L (corresponding author), Av Dr Manuel Nava 5, San Luis Potosi 78240, Slp, Mexico.
来源期刊	JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
ISSN	0895-9811
EISSN	1873-0647
出版年	2021
卷号	111
英文摘要	Gully erosion is an ubiquitous problem but typically occurs in semi-arid environments. Erodibility (K-index) is the compendium of a set of intrinsic soil properties responsible for resistance to erosion. The number of gullyframed erodibility assessment investigations has been increasing due to the knowledge that it is mainly deepprofile properties that control gully development. Usually, only texture and organic matter are considered when calculating the K-index. In this study, we also consider both the climate factor (through the KUERY algorithm) and chemical stability, through the electrochemical stability index (ESI), an innovation since a direct correlation between K-index and ESI has not been reported. Moreover, erodibility differences between horizons contribute to the dynamics of gully development. Soil horizon erodibility in the studied gullies ranges between 0.036 and 0.006 (Mg center dot h center dot m2/MJ center dot mm center dot m2), which is within the medium and low erodibility classes but with a growing (more erosive) K-index trend with depth. We found that this is mainly due to electrochemical instability present in the deep horizons (B-Hzs) as suggested by our results and confirmed by the ESI. This allows us to postulate that the higher K-index of the deep layers is promoting the excavation-collapse dynamics, which can explain the large U-shaped gullies present in the area.
英文关键词	Soil erodibility Water erosion Gully erosion Semi-arid environment ESI
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000701739200001
WOS关键词	INTERRILL ERODIBILITY ; ORGANIC-MATTER ; SODICITY ; PREDICTION ; AUSTRALIA ; VERTISOL ; USLE
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364032
作者单位	[Casabella-Gonzalez, M. J.; Borselli, L.] UASLP, Lab Geotecnia & Geomat, Inst Geol, San Luis Potosi, San Luis Potosi, Mexico; [Casabella-Gonzalez, M. J.; Garcia-Meza, J., V] UASLP, Lab Geomicrobiol, Inst Met, San Luis Potosi, San Luis Potosi, Mexico; [Borselli, L.] Ist Ric Protez Idrogeol CNR IRPI, CNR, Via Madonna Alta 126, I-06128 Perugia, Italy
推荐引用方式 GB/T 7714	Casabella-Gonzalez, M. J.,Borselli, L.,Garcia-Meza, J., V. Soil Horizon erodibility assessment in an area of Mexico susceptible to gully erosion[J],2021,111.
APA	Casabella-Gonzalez, M. J.,Borselli, L.,&Garcia-Meza, J., V.(2021).Soil Horizon erodibility assessment in an area of Mexico susceptible to gully erosion.JOURNAL OF SOUTH AMERICAN EARTH SCIENCES,111.
MLA	Casabella-Gonzalez, M. J.,et al."Soil Horizon erodibility assessment in an area of Mexico susceptible to gully erosion".JOURNAL OF SOUTH AMERICAN EARTH SCIENCES 111(2021).