干旱区生态环境知识资源中心(Arid): Environmental sensitivity and risk assessment in the Saharan Tunisian oasis agro-systems using the deepest water table source for irrigation: water quality and land management impacts

Arid

DOI	10.1007/s10668-021-01878-z
	Environmental sensitivity and risk assessment in the Saharan Tunisian oasis agro-systems using the deepest water table source for irrigation: water quality and land management impacts
	Dhaouadi, Latifa; Besser, Houda; Karbout, Nissaf; Khaldi, Rabeb; Haj-Amor, Zied; Maachia, Sihem; Ouassar, Fatma
通讯作者	Dhaouadi, L (corresponding author), Reg Resources Ctr Oasis Agr, Degach, Tozeur, Tunisia. ; Dhaouadi, L (corresponding author), Carthage Univ, Ariana, Tunisia.
来源期刊	ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
ISSN	1387-585X
EISSN	1573-2975
出版年	2021-10
英文摘要	In dry-hot areas, such as southern Tunisia, the availability of good water is very limited by the low scanty rainfall, the long dry periods and the high evaporation rate. Thus, to deal with these issues, information concerning the quality of irrigation water and the variability of groundwater quality across the oasis system from water well to the final runoff released into the natural environment, is required to evaluate the potential impacts on agricultural soil fertility and to assess the effects of land-use and agricultural practices in environmental conservation and natural resources exploitation. In the current study, 28 water samples have been collected from public wells along the irrigation scheme and drainage canals and have been analyzed. The obtained data prove that groundwater has large spatial variability (EC between 2.93 and 10.05 ms/cm and TDS between 1.95 and 8.15 g/L) caused by different influencing factors such as aquifer water quality, overexploitation, distribution system and evaporation processes. According to the used ionic ratios (SAR, KR, PI, MH, TH, SSP, ESP, etc..), the used waters are locally of permissible quality, while the majority fall unsuitable class to be used in irrigation with a maximum SAR of 18 at El Hamma region. The findings indicate that, besides the severe restrictions required for the use of these high mineralized resources, CI water quality shows a slight variability along irrigation scheme, which may provide additive water resources that may be reused in agriculture, the runoff released into the environment and the excess of irrigation water lost to evaporation process. The evaluation of chemical quality of drainage water may provide a scientific basis for the reuse of these waters to more efficient land management aiming to the sustainable development of oasis agriculture and the prevention of land degradation.
英文关键词	Irrigation water quality Environmental sensitivity Salinization Land management Tunisian Saharan oasis
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000708359700003
WOS关键词	GROUNDWATER QUALITY ; ANDHRA-PRADESH ; TRACE-ELEMENT ; RIVER-BASIN ; DISTRICT ; DRINKING ; INDEX ; AREA ; PARAMETERS ; TAMILNADU
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363093
作者单位	[Dhaouadi, Latifa; Khaldi, Rabeb; Maachia, Sihem] Reg Resources Ctr Oasis Agr, Degach, Tozeur, Tunisia; [Besser, Houda; Ouassar, Fatma] High Inst Sci & Tech Water, Gabes, Tunisia; [Karbout, Nissaf] Inst Arid Areas, Medenine, Tunisia; [Haj-Amor, Zied] Lab Water Energy & Environm, Sfax, Tunisia; [Dhaouadi, Latifa; Khaldi, Rabeb; Maachia, Sihem] Carthage Univ, Ariana, Tunisia
推荐引用方式 GB/T 7714	Dhaouadi, Latifa,Besser, Houda,Karbout, Nissaf,et al. Environmental sensitivity and risk assessment in the Saharan Tunisian oasis agro-systems using the deepest water table source for irrigation: water quality and land management impacts[J],2021.
APA	Dhaouadi, Latifa.,Besser, Houda.,Karbout, Nissaf.,Khaldi, Rabeb.,Haj-Amor, Zied.,...&Ouassar, Fatma.(2021).Environmental sensitivity and risk assessment in the Saharan Tunisian oasis agro-systems using the deepest water table source for irrigation: water quality and land management impacts.ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY.
MLA	Dhaouadi, Latifa,et al."Environmental sensitivity and risk assessment in the Saharan Tunisian oasis agro-systems using the deepest water table source for irrigation: water quality and land management impacts".ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY (2021).