Agricultural Technologies for Enhancing the Phytoremediation of Cadmium-Contaminated Soil by Amaranthus hypochondriacus L.
文献类型: 外文期刊
作者: Li, Ningyu 1 ; Li, Zhian 1 ; Fu, Qinglin 2 ; Zhuang, Ping 1 ; Guo, Bin 2 ; Li, Hua 2 ;
作者机构: 1.Chinese Acad Sci, South China Bot Garden, Key Lab Vegetat Restorat & Management Degraded Ec, Guangzhou 510650, Guangdong, Peoples R China
2.Zhejiang Acad Agr Sci, Inst Environm Resource Soil & Fertilizer, Hangzhou 310021, Zhejiang, Peoples R China
关键词: Amaranth;Cadmium;Phytoremediation;Heavy metal;Repeated harvest;Fertilizer
期刊名称:WATER AIR AND SOIL POLLUTION ( 影响因子:2.52; 五年影响因子:2.574 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: Three pot experiments were carried out to evaluate the phytoextraction efficiency of cadmium (Cd) by an amaranth {Amaranthus hypochondriacus L.). To enhance phytoremediation potential, this study examined the effect of fertilization, repeated harvests, and growth time on the efficiency of Cd removal from soil. The result showed that fertilizing with NPK increased dry biomass by a factor of 4.2, resulting in a large increment of Cd accumulation. Repeated harvests had a significant effect on the plant biomass and thus on overall Cd removal and an optimal cutting position influenced the amount of Cd extracted from soils. Plant growth time was found to significantly affect the amount of Cd extracted by A. hypochondriacus. This study indicates that A. hypochondriacus has great phytoremediation potential in Cd-contaminated soil. For best practice, the recommendation is to maximize the phytoextraction efficiency of A. hypochondriacus by repeated harvests, harvesting at the squaring stage (soon after the flower begins to appear), and apply NPK compound fertilizer as base application.
- 相关文献
作者其他论文 更多>>
-
Long-term agricultural cultivation decreases microbial nutrient limitation in coastal saline soils
作者:Li, Guanjun;Wang, Jianming;Li, Jingwen;Li, Guanjun;Ma, Zhi;Wei, Liang;Ge, Tida;Wu, Cuiyan;Chen, Hao;Guo, Bin
关键词:Land use types; Soil enzyme; Stoichiometry; Microbial nutrient limitation; Microbial carbon use efficiency
-
Innovative accumulative risk assessment of co-exposure to Cd, As, and Pb in contaminated rice based on their in vivo bioavailability and in vitro bioaccessibility
作者:Xiao, Wendan;Yang, Yonggui;Tang, Ning;Huang, Xiaolei;Zhang, Qi;Zhao, Shouping;Chen, De;Zhao, Zhen;Ye, Xuezhu;Guo, Bin;Jiang, Yugen
关键词:Heavy metal; Bioaccessibility; Relative bioavailability; In vivo; in vitro correlation; Accumulative risk assessment; Rice
-
Microbial carbon and phosphorus metabolism regulated by C:N:P stoichiometry stimulates organic carbon accumulation in agricultural soils
作者:Wang, Xiangxiang;Zhang, Hongrui;Cao, Dan;Wei, Liang;Wang, Shuang;Ding, Jina;Chen, Jianping;Ge, Tida;Zhu, Zhenke;Wang, Xiangxiang;Zhang, Hongrui;Cao, Dan;Wu, Cuiyan;Wang, Xianting;Guo, Bin;Chen, Hao
关键词:Soil nutrients; Microbial metabolism; Ecoenzymatic stoichiometry; Microbial carbon use efficiency
-
The connection between the antibiotic resistome and nitrogen-cycling microorganisms in paddy soil is enhanced by application of chemical and plant-derived organic fertilizers
作者:Wang, Yuan;Chen, Xiaodong;Guo, Bin;Liu, Junli;Qiu, Gaoyang;Li, Hua;Cai, Jingjing
关键词:Nitrogen; Soil; ARGs; Resistome risk; Rice fields
-
Genome-Wide Identification and Expression Analysis of SlNRAMP Genes in Tomato under Nutrient Deficiency and Cadmium Stress during Arbuscular Mycorrhizal Symbiosis
作者:Liu, Junli;Bao, Xiaoqi;Qiu, Gaoyang;Li, Hua;Wang, Yuan;Chen, Xiaodong;Fu, Qinglin;Guo, Bin;Bao, Xiaoqi
关键词:arbuscular mycorrhizal fungi; cadmium; gene expression; NRAMP; tomato
-
Alleviation of aqueous nitrogen loss from paddy fields by growth and decomposition of duckweed (Lemna minor L.) after fertilization
作者:Wang, Yuan;Chen, Xiaodong;Guo, Bin;Liu, Chen;Liu, Junli;Qiu, Gaoyang;Fu, Qinglin;Li, Hua
关键词:Duckweed; Nitrogen; Rice; Floodwater; Runoff loss
-
Soil carbon turnover and balance in the priming effects of basalt, montmorillonite, and kaolinite in a Luvisol soil
作者:Xu, Junyan;Zhang, Ming;Xu, Junyan;Liu, Junli;Fu, Qinglin;Guo, Bin;Li, Hua;Chen, Xiaodong;Qiu, Gaoyang;Qiu, Gaoyang
关键词:Basalt weathering; Priming effect; Soil inorganic carbon stabilization; Soil organic carbon stabilization; Soil net carbon balance