干旱区生态环境知识资源中心(Arid): Characterization of Mechanisms and Processes Controlling Groundwater Recharge and its Quality in Drought-Prone Region of Central India (Buldhana, Maharashtra) Using Isotope Hydrochemical and End-Member Mixing Modeling

Arid

DOI	10.1007/s11053-019-09550-0
	Characterization of Mechanisms and Processes Controlling Groundwater Recharge and its Quality in Drought-Prone Region of Central India (Buldhana, Maharashtra) Using Isotope Hydrochemical and End-Member Mixing Modeling
	Keesari, Tirumalesh; Roy, Annadasankar; Mohokar, Hemant; Pant, Diksha; Sinha, U. K.
通讯作者	Keesari, T
来源期刊	NATURAL RESOURCES RESEARCH
ISSN	1520-7439
EISSN	1573-8981
出版年	2020
卷号	29 期号:3 页码:1951-1973
英文摘要	A thorough study on understanding of groundwater recharge sources and mechanisms was attempted by integrating the hydrogeological, geochemical and isotopic information along with groundwater dating and end-member mixing analysis (EMMA). This study was necessitated due to prolonged dryness and unavailability of freshwater in semi arid Deccan trap regions of Central India. In addition, groundwater resources are not characterized well in terms of their geochemical nature and recharge sources. The hydrogeochemical inferences suggest that aquifer I consists of recently recharged water dominated by Ca-Mg-HCO3 facies, while groundwater in aquifer II shows water-rock interaction and ion exchange processes. Presence of agricultural contaminant, nitrate, in both aquifers infers limited hydraulic interconnection, which is supported by unconfined to semi-confined nature of aquifers. Groundwater in both aquifers is unsaturated with respect to carbonate and sulfate minerals indicating lesser water-rock interaction and shorter residence time. This inference is corroborated by tritium age of groundwater (aquifer I: 0.7-2 years old and aquifer II: 2-4.2 years old). Stable water isotopes (delta H-2, delta O-18) suggest that groundwater is a mixture of rainwater and evaporated water (surface water and irrigation return flow). EMMA analysis indicates three groundwater recharge sources with irrigation return flow being the dominant source compared to others (rainwater and surface waters). A conceptual model depicting groundwater chemistry, recharge and dynamics is prepared based on the inferences.
英文关键词	Aquifer dynamics Source apportionment Tritium dating Environmental isotopes Buldhana
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000526461900027
WOS关键词	STABLE-ISOTOPES ; SURFACE-WATER ; RIVER-BASIN ; CHEMISTRY ; INFILTRATION ; CATCHMENT ; GEORGIA ; RUNOFF
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/2XILL650/324342
作者单位	[Keesari, Tirumalesh; Roy, Annadasankar; Mohokar, Hemant; Pant, Diksha; Sinha, U. K.] Bhabha Atom Res Ctr, Isotope & Radiat Applicat Div, Isotope Hydrol Sect, Mumbai, Maharashtra, India; [Keesari, Tirumalesh; Roy, Annadasankar; Pant, Diksha] Bhabha Atom Res Ctr, Homi Bhabha Natl Inst, Mumbai, Maharashtra, India
推荐引用方式 GB/T 7714	Keesari, Tirumalesh,Roy, Annadasankar,Mohokar, Hemant,et al. Characterization of Mechanisms and Processes Controlling Groundwater Recharge and its Quality in Drought-Prone Region of Central India (Buldhana, Maharashtra) Using Isotope Hydrochemical and End-Member Mixing Modeling[J],2020,29(3):1951-1973.
APA	Keesari, Tirumalesh,Roy, Annadasankar,Mohokar, Hemant,Pant, Diksha,&Sinha, U. K..(2020).Characterization of Mechanisms and Processes Controlling Groundwater Recharge and its Quality in Drought-Prone Region of Central India (Buldhana, Maharashtra) Using Isotope Hydrochemical and End-Member Mixing Modeling.NATURAL RESOURCES RESEARCH,29(3),1951-1973.
MLA	Keesari, Tirumalesh,et al."Characterization of Mechanisms and Processes Controlling Groundwater Recharge and its Quality in Drought-Prone Region of Central India (Buldhana, Maharashtra) Using Isotope Hydrochemical and End-Member Mixing Modeling".NATURAL RESOURCES RESEARCH 29.3(2020):1951-1973.