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Bio-geological processes of nitrogen transport and transformation in the aeration zone and aquifer

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Bio-geological processes of nitrogen transport and transformation in the aeration zone and aquifer. / Zhang, D.; Li, G.; Yang, Y. S. et al.
In: Hydrological Sciences Journal, Vol. 54, No. 2, 04.2009, p. 316-326.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Zhang, D, Li, G, Yang, YS, Zhang, X & Guo, H 2009, 'Bio-geological processes of nitrogen transport and transformation in the aeration zone and aquifer', Hydrological Sciences Journal, vol. 54, no. 2, pp. 316-326. https://doi.org/10.1623/hysj.54.2.316

APA

Zhang, D., Li, G., Yang, Y. S., Zhang, X., & Guo, H. (2009). Bio-geological processes of nitrogen transport and transformation in the aeration zone and aquifer. Hydrological Sciences Journal, 54(2), 316-326. https://doi.org/10.1623/hysj.54.2.316

Vancouver

Zhang D, Li G, Yang YS, Zhang X, Guo H. Bio-geological processes of nitrogen transport and transformation in the aeration zone and aquifer. Hydrological Sciences Journal. 2009 Apr;54(2):316-326. doi: 10.1623/hysj.54.2.316

Author

Zhang, D. ; Li, G. ; Yang, Y. S. et al. / Bio-geological processes of nitrogen transport and transformation in the aeration zone and aquifer. In: Hydrological Sciences Journal. 2009 ; Vol. 54, No. 2. pp. 316-326.

Bibtex

@article{e50203b998714845b5178bce5c4b3bae,
title = "Bio-geological processes of nitrogen transport and transformation in the aeration zone and aquifer",
abstract = "Nitrate contamination in groundwater originates mainly from excessive use of fertilizers and uncontrolled discharge to land of incompletely-treated wastewater associated with agricultural activities. A systematic field investigation was carried out in a sub-catchment of Dianchi Lake, Kunming, Yunnan, China, into the hydrological, biological and geological processes of nitrogen transport and transformation in the aeration zone and aquifer system. In situ experiments showed that the quantity of NO(3)-N recharged into groundwater was related to fertilization. Nitrification and denitrification behaved quite differently but were affected by moisture content and Eh value. The vertical infiltration rate was controlled by the groundwater table and hydraulic conductivity of the soil. The existence of a zero-flux plane reflected the dynamics of water fluxes in the soil profile and Eh was measured in the aeration zone. In response to these factors, the nitrification rate was greatest in the top soil and reduced with the depth of soil; it was 6.53 mg/(kg.h) in the vegetated plot and 0.2-0.3 mg/(kg.h) in the unvegetated one. The denitrification rate in the unvegetated plot was 6.36 mg/(kg.h), and it was 2.79 mg/(kg.h) in the vegetated one.",
keywords = "RISK, DENITRIFICATION, DRINKING-WATER, NITRITE, nitrate, GASTRIC-CANCER, GROUNDWATER, SOIL, nitrogen, groundwater, nitrification, CHINA, denitrification, NITRATE POLLUTION",
author = "D. Zhang and G. Li and Yang, {Y. S.} and X. Zhang and H. Guo",
year = "2009",
month = apr,
doi = "10.1623/hysj.54.2.316",
language = "English",
volume = "54",
pages = "316--326",
journal = "Hydrological Sciences Journal",
issn = "0262-6667",
publisher = "TAYLOR & FRANCIS LTD",
number = "2",

}

RIS

TY - JOUR

T1 - Bio-geological processes of nitrogen transport and transformation in the aeration zone and aquifer

AU - Zhang, D.

AU - Li, G.

AU - Yang, Y. S.

AU - Zhang, X.

AU - Guo, H.

PY - 2009/4

Y1 - 2009/4

N2 - Nitrate contamination in groundwater originates mainly from excessive use of fertilizers and uncontrolled discharge to land of incompletely-treated wastewater associated with agricultural activities. A systematic field investigation was carried out in a sub-catchment of Dianchi Lake, Kunming, Yunnan, China, into the hydrological, biological and geological processes of nitrogen transport and transformation in the aeration zone and aquifer system. In situ experiments showed that the quantity of NO(3)-N recharged into groundwater was related to fertilization. Nitrification and denitrification behaved quite differently but were affected by moisture content and Eh value. The vertical infiltration rate was controlled by the groundwater table and hydraulic conductivity of the soil. The existence of a zero-flux plane reflected the dynamics of water fluxes in the soil profile and Eh was measured in the aeration zone. In response to these factors, the nitrification rate was greatest in the top soil and reduced with the depth of soil; it was 6.53 mg/(kg.h) in the vegetated plot and 0.2-0.3 mg/(kg.h) in the unvegetated one. The denitrification rate in the unvegetated plot was 6.36 mg/(kg.h), and it was 2.79 mg/(kg.h) in the vegetated one.

AB - Nitrate contamination in groundwater originates mainly from excessive use of fertilizers and uncontrolled discharge to land of incompletely-treated wastewater associated with agricultural activities. A systematic field investigation was carried out in a sub-catchment of Dianchi Lake, Kunming, Yunnan, China, into the hydrological, biological and geological processes of nitrogen transport and transformation in the aeration zone and aquifer system. In situ experiments showed that the quantity of NO(3)-N recharged into groundwater was related to fertilization. Nitrification and denitrification behaved quite differently but were affected by moisture content and Eh value. The vertical infiltration rate was controlled by the groundwater table and hydraulic conductivity of the soil. The existence of a zero-flux plane reflected the dynamics of water fluxes in the soil profile and Eh was measured in the aeration zone. In response to these factors, the nitrification rate was greatest in the top soil and reduced with the depth of soil; it was 6.53 mg/(kg.h) in the vegetated plot and 0.2-0.3 mg/(kg.h) in the unvegetated one. The denitrification rate in the unvegetated plot was 6.36 mg/(kg.h), and it was 2.79 mg/(kg.h) in the vegetated one.

KW - RISK

KW - DENITRIFICATION

KW - DRINKING-WATER

KW - NITRITE

KW - nitrate

KW - GASTRIC-CANCER

KW - GROUNDWATER

KW - SOIL

KW - nitrogen

KW - groundwater

KW - nitrification

KW - CHINA

KW - denitrification

KW - NITRATE POLLUTION

U2 - 10.1623/hysj.54.2.316

DO - 10.1623/hysj.54.2.316

M3 - Journal article

VL - 54

SP - 316

EP - 326

JO - Hydrological Sciences Journal

JF - Hydrological Sciences Journal

SN - 0262-6667

IS - 2

ER -