The soil displacement measurement of mercury emission flux of the sewage irrigation farmlands in Northern China

Mercury fate of sewage irrigation in farmlands deserves attention with increasing scarcity of freshwater resources for agriculture in the worldwide. Soil-air total gaseous mercury (TGM) fluxes from four-sewage and one-fresh water irrigated farmlands were determined simultaneously. During maize-wheat...

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Autores principales:	Yu Gao, Zhangwei Wang, Chunjie Wang, Xiaoshan Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2019
Materias:	soil-air mercury exchange flux sewage irrigation farmland maize-wheat rotation soil displacement environmental factors Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/8ff6bd0797a6410db476609d67be7d51
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spelling	oai:doaj.org-article:8ff6bd0797a6410db476609d67be7d512021-12-02T16:43:50ZThe soil displacement measurement of mercury emission flux of the sewage irrigation farmlands in Northern China2332-887810.1080/20964129.2019.1647117https://doaj.org/article/8ff6bd0797a6410db476609d67be7d512019-01-01T00:00:00Zhttp://dx.doi.org/10.1080/20964129.2019.1647117https://doaj.org/toc/2332-8878Mercury fate of sewage irrigation in farmlands deserves attention with increasing scarcity of freshwater resources for agriculture in the worldwide. Soil-air total gaseous mercury (TGM) fluxes from four-sewage and one-fresh water irrigated farmlands were determined simultaneously. During maize-wheat rotation, soil-air TGM fluxes showed patterns of both emission and deposition during different growth stages. It enhanced one-order of magnitude emission with increased Hg contamination from historical sewage irrigation. A linear response relationship of TGM fluxes with soil Hg concentration was found, which showed greater TGM emission potential comparing with those from forest and urban soils. However, the ratio of soil-air TGM flux in daytime to nighttime were 3.94 in maize-season and 3.41 in wheat-season, respectively, which were little related to the change in soil Hg concentration. Furthermore, soil temperature and moisture, ambient-air TGM concentration all effected TGM evasion from sewage-irrigated soils. The data presented here suggest that evasion of TGM from historical sewage irrigation farmlands with high Hg concentrations may be potential hotspots for Hg emission in atmosphere, and it was likely to underestimate Hg emissions from farmlands in existing emissions inventory. Additional regional-investigations and process-level researches are needed to better understand role of sewage irrigation farmlands in local-global Hg-biogeochemical-cycles.Yu GaoZhangwei WangChunjie WangXiaoshan ZhangTaylor & Francis Grouparticlesoil-air mercury exchange fluxsewage irrigation farmlandmaize-wheat rotationsoil displacementenvironmental factorsEcologyQH540-549.5ENEcosystem Health and Sustainability, Vol 5, Iss 1, Pp 169-180 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	soil-air mercury exchange flux sewage irrigation farmland maize-wheat rotation soil displacement environmental factors Ecology QH540-549.5
spellingShingle	soil-air mercury exchange flux sewage irrigation farmland maize-wheat rotation soil displacement environmental factors Ecology QH540-549.5 Yu Gao Zhangwei Wang Chunjie Wang Xiaoshan Zhang The soil displacement measurement of mercury emission flux of the sewage irrigation farmlands in Northern China
description	Mercury fate of sewage irrigation in farmlands deserves attention with increasing scarcity of freshwater resources for agriculture in the worldwide. Soil-air total gaseous mercury (TGM) fluxes from four-sewage and one-fresh water irrigated farmlands were determined simultaneously. During maize-wheat rotation, soil-air TGM fluxes showed patterns of both emission and deposition during different growth stages. It enhanced one-order of magnitude emission with increased Hg contamination from historical sewage irrigation. A linear response relationship of TGM fluxes with soil Hg concentration was found, which showed greater TGM emission potential comparing with those from forest and urban soils. However, the ratio of soil-air TGM flux in daytime to nighttime were 3.94 in maize-season and 3.41 in wheat-season, respectively, which were little related to the change in soil Hg concentration. Furthermore, soil temperature and moisture, ambient-air TGM concentration all effected TGM evasion from sewage-irrigated soils. The data presented here suggest that evasion of TGM from historical sewage irrigation farmlands with high Hg concentrations may be potential hotspots for Hg emission in atmosphere, and it was likely to underestimate Hg emissions from farmlands in existing emissions inventory. Additional regional-investigations and process-level researches are needed to better understand role of sewage irrigation farmlands in local-global Hg-biogeochemical-cycles.
format	article
author	Yu Gao Zhangwei Wang Chunjie Wang Xiaoshan Zhang
author_facet	Yu Gao Zhangwei Wang Chunjie Wang Xiaoshan Zhang
author_sort	Yu Gao
title	The soil displacement measurement of mercury emission flux of the sewage irrigation farmlands in Northern China
title_short	The soil displacement measurement of mercury emission flux of the sewage irrigation farmlands in Northern China
title_full	The soil displacement measurement of mercury emission flux of the sewage irrigation farmlands in Northern China
title_fullStr	The soil displacement measurement of mercury emission flux of the sewage irrigation farmlands in Northern China
title_full_unstemmed	The soil displacement measurement of mercury emission flux of the sewage irrigation farmlands in Northern China
title_sort	soil displacement measurement of mercury emission flux of the sewage irrigation farmlands in northern china
publisher	Taylor & Francis Group
publishDate	2019
url	https://doaj.org/article/8ff6bd0797a6410db476609d67be7d51
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The soil displacement measurement of mercury emission flux of the sewage irrigation farmlands in Northern China

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