干旱区生态环境知识资源中心(Arid): Reconnesaince of chemically vulnerable areas of an aquifer under arid conditions with agricultural uses

Arid

DOI	10.1016/j.agwat.2020.106100
	Reconnesaince of chemically vulnerable areas of an aquifer under arid conditions with agricultural uses
	Mendieta-Mendoza, Aurora; Renteria-Villalobos, Marusia; Chavez-Flores, David; Santellano-Estrada, Eduardo; Pinedo-Alvarez, Carmelo; Hugo Ramos-Sanchez, Victor
通讯作者	Renteria-Villalobos, Marusia
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2020
卷号	233
英文摘要	Agriculture is one of most important economic activities that requires large amounts of water, which, in addition to changes in climate, presents a major impact on the water availability. Excess of salt and nutrient concentrations build up damages to soil such as reduced drainage and increase in anoxic conditions in the root zone, as well as decreasing productivity and usable farm lands. The objective of the present study was to evaluate the chemical vulnerability of an aquifer in arid conditions with a high level of extraction through the detection of risk zones and potential subregions of different risks. An evaluation of the quality of the groundwater was performed, as a reconnaissance prior to more detailed studies, in which samples of 30 wells were analyzed to determine physical-chemical parameters (recorded in situ), dissolved chemical species (UV-vis spectrophotometry), and elemental content (X-ray fluorescence spectrophotometry). Concentrations of TDS, as well as Ca, Mg, S, Cl, and As determined in the water under analysis exceeded the limit established for water for consumption and irrigation. It is suggests that the origin of the elemental composition is mainly due to the mineral composition of the aquifer sediments. The wells were classified in three groups located in different zones, based on: a) alkaline earth elements, b) halogens, c) dissolved ions. Water salinity is mainly composed by sulphates and, a lesser extent, by hydrochloric salts from leaching of evaporites. Furthermore, the highest chemical vulnerability are located from central to north zone, where the soils showed crop leaching requirement by above of threshold value for pecan crops, one of the major agricultural products of the valley. In conclusion, both the salinity and the high level of water extraction for agriculture, combined with the arid conditions, are provoking an increase in contents of some chemical species in soil of crops. The immediate consequences are related to a reduction in the agricultural production and, therefore, a decrease in the productive competitiveness.
英文关键词	Arid zone Chemical species Spatial distribution Groundwater
类型	Article
语种	英语
国家	Mexico
收录类别	SCI-E
WOS记录号	WOS:000525291200024
WOS关键词	HEAVY-METALS ; COASTAL-AQUIFER ; SURFACE-WATER ; HEALTH-RISK ; GROUNDWATER ; QUALITY ; IRRIGATION ; SOILS ; IDENTIFICATION ; POLLUTION
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/313965
作者单位	Univ Autonoma Chihuahua, Escorza 900, Chih 33000, Chihuahua, Mexico
推荐引用方式 GB/T 7714	Mendieta-Mendoza, Aurora,Renteria-Villalobos, Marusia,Chavez-Flores, David,et al. Reconnesaince of chemically vulnerable areas of an aquifer under arid conditions with agricultural uses[J],2020,233.
APA	Mendieta-Mendoza, Aurora,Renteria-Villalobos, Marusia,Chavez-Flores, David,Santellano-Estrada, Eduardo,Pinedo-Alvarez, Carmelo,&Hugo Ramos-Sanchez, Victor.(2020).Reconnesaince of chemically vulnerable areas of an aquifer under arid conditions with agricultural uses.AGRICULTURAL WATER MANAGEMENT,233.
MLA	Mendieta-Mendoza, Aurora,et al."Reconnesaince of chemically vulnerable areas of an aquifer under arid conditions with agricultural uses".AGRICULTURAL WATER MANAGEMENT 233(2020).