Biochar amendment reduces biological nitrogen fixation and nitrogen use efficiency in cadmium-contaminated paddy fields

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成果类型：

期刊论文

作者：

Jiang, Yuexi;Liu, Ji;Li, Yanyan;Xiao, Peng;Liu, Shuang;...

通讯作者：

Shao, JH

作者机构：

[Shao, Jihai; Fan, Li; Yan, Xiaoqi; Cai, Yixiang; Jiang, Yuexi; Liu, Shuang] Hunan Agr Univ, Coll Environm & Ecol, Changsha 410128, Hunan, Peoples R China.

[Liu, Ji] Cent China Normal Univ, Coll Urban & Environm Sci, Wuhan 430079, Hubei, Peoples R China.

[Liu, Ji] Leibniz Inst Freshwater Ecol & Inland Fisheries, Dept Ecohydrol, D-12587 Berlin, Germany.

[Li, Yanyan] Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha 410125, Hunan, Peoples R China.

[Li, Yanyan] Chinese Acad Sci, Inst Subtrop Agr, Changsha Res Stn Agr & Environm Monitoring, Changsha 410125, Hunan, Peoples R China.

通讯机构：

[Shao, JH ] N

Nongda Rd, Changsha 410128, Peoples R China.

语种：

英文

关键词：

Biochar;Cadmium;Diazotrophic bacteria;Nitrogen utilization;Nitrogenase activity

期刊：

Journal of Environmental Management

ISSN：

0301-4797

年：

2023

卷：

344

页码：

118338

DOI：

10.1016/j.jenvman.2023.118338

基金类别：

National Natural Science Foundation of China [32071647]; Natural Science Founda- tion of Hunan Province, China [2020JJ4371]; Alexander von Humboldt Foundation

机构署名：

本校为其他机构

院系归属：

城市与环境科学学院

摘要：

Cadmium (Cd) contamination poses a considerable threat to human health through grain enrichment and limits biological nitrogen fixation (BNF) in paddy fields. Biochar has shown great potential for agricultural soil remediation because it inactivates Cd, but uncertainties remain as to how biochar amendments affect BNF and grain N use efficiency in paddies. To elucidate these issues, we investigated the effects of biochar amendment on the structure and function of diazotrophic bacterial communities in different rice growth stages in Cd-contaminated paddy fields, and evaluated the contribution of...

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Biochar amendment reduces biological nitrogen fixation and nitrogen use efficiency in cadmium-contaminated paddy fields

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