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101 0 _aeng
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aModelling of Redox Conditions in the Shallow Groundwater: A Case Study of Agricultural Areas in the Poyang Lake Basin, China
_fE. A. Soldatova, N. V. Guseva, V. A. Bychinsky
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 7 tit.]
330 _aVarious natural and anthropogenic factors affect the formation of the groundwater chemical composition and geochemical conditions in agricultural areas. However, it is often difficult to evaluate the role of individual factors in these processes. The article is focused on the research of the alteration of redox conditions in the shallow groundwater of the Poyang Lake basin under the influence of agricultural activity with help of thermodynamic modelling. The thermodynamic modelling and field observations demonstrate that the reducing conditions result from joint effects of anthropogenic factors, organic or NH4–fertiliser usage, and proper natural conditions, such as low-level topography, which, in its turn, leads to the decrease in water exchange rate. The modelling also denotes that fertiliser usage may result in the clay minerals formation at lower concentrations of main clay-forming components in aqueous solution than the ones under natural conditions.
461 _tProcedia Earth and Planetary Science
463 _tVol. 17 : 15th Water-Rock Interaction International Symposium, WRI-15
_v[P. 197-200]
_d2017
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aатмосфера
610 1 _aвода
610 1 _aпорода
610 1 _aудобрения
610 1 _aснижение
610 1 _aаммоний
700 1 _aSoldatova
_bE. A.
_chydrogeologist
_cengineer-researcher of Tomsk Polytechnic University
_f1989-
_gEvgeniya Aleksandrovna
_2stltpush
_3(RuTPU)RU\TPU\pers\32201
701 1 _aGuseva
_bN. V.
_chydrogeologist
_cAssociate Professor of Tomsk Polytechnic University, Candidate of geological and mineralogical sciences
_f1984-
_gNatalia Vladimirovna
_2stltpush
_3(RuTPU)RU\TPU\pers\32200
701 1 _aBychinsky
_bV. A.
_gValery Alekseevich
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bИнститут природных ресурсов (ИПР)
_bКафедра гидрогеологии, инженерной геологии и гидрогеоэкологии (ГИГЭ)
_h100
_2stltpush
_3(RuTPU)RU\TPU\col\18664
801 2 _aRU
_b63413507
_c20170529
_gRCR
856 4 _uhttps://doi.org/10.1016/j.proeps.2016.12.068
942 _cCF