Structural equation model of the relationship between metals in contaminated soil and in earthworm (Metaphire californica) in Hunan Province, subtropical China
文献类型： 外文期刊
作者： Wang, Kun 1 ; Qiao, Yuhui 1 ; Li, Huafen 1 ; Zhang, Huiqi 1 ; Yue, Shizhong 1 ; Ji, Xionghui 2 ; Liu, Longsheng 3 ;
作者机构： 1.China Agr Univ, Coll Resources & Environm Sci, Beijing 100193, Peoples R China
2.Hunan Acad Agr Sci, Changsha 410125, Hunan, Peoples R China
3.Hengyang Acad Agr Sci, Hengyang 421151, Peoples R China
关键词： Heavy metals; Bioavailability; Epi-endogeic earthworm; Structural equation model (SEM)
期刊名称：ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY （ 影响因子：6.291； 五年影响因子：6.393 ）
ISSN： 0147-6513
年卷期： 2018 年 156 卷
页码：
收录情况： SCI
摘要： Earthworms have the ability to take up heavy metals in soil and partition them in different subcellular compartments. In this study, we used a structural equation model (SEM) to investigate the two-step causal relationship between environmental availability (EA) and environmental bioavailability (EB) of heavy metals (Cd, Cu, Zn, and Pb), as reflected by their levels in soil fractions and in earthworms from field-contaminated areas in Southern China. In the SEM, the correlation between EA and EB reflected the bioavailability of Cd, Zn, and Pb. For Cd, the causal relationship between the latent variables EA and EB was reflected by DTPA fractions in soil as well as by earthworm internal and subcellular cytosol fractions. The extractable and oxidizable fractions of Zn in soil influenced Zn concentrations in the cytosol and debris. The DTPA and reducible Pb fractions were bioavailable to earthworm internal Pb concentrations and those in cytosol fractions. These results implied that the DTPA, extractable, oxidizable, or reducible fractions of different metals could be the bioavailable sources to earthworm internal metals and partitioned in their subcellular compartments.
- 相关文献
作者其他论文 更多>>
-
Optimizing fertilizer application and straw return to fields to minimize nitrogen and phosphorus runoff losses in double-rice cropping systems
作者：Zhang, Ying;Zhu, Jian;Li, Changjun;Peng, Hua;Song, Min;Dai, Yanjiao;Deng, Kai;Ji, Xionghui;Liu, Ji;Luo, Yue
关键词：Optimized fertilization; Straw return; Double-rice cropping field; Runoff water; Nitrogen and phosphorus losses; High-risk period
-
Enhanced retention of arsenite and arsenate through heterogeneous interactions between Fe(III) (Hydr)Oxides and black carbon: a multi-mechanistic study
作者：Li, Bingyu;Liu, Saihua;Xie, Yunhe;Ji, Xionghui;Li, Bingyu;Liu, Saihua;Xie, Yunhe;Ji, Xionghui;Li, Bingyu;Liu, Saihua;Xie, Yunhe;Ji, Xionghui;Li, Bingyu;Jing, Miaomiao;Li, Jingru;Li, Zhuoqing;Zhou, Yimin;Lei, Ming;Cui, Haojie;Wei, Dongning
关键词：Black carbon; Ferrihydrite; Pore diffusion; Free radical; Arsenic; Sorption
-
Cultivar-specific response of a root-associated microbiome assembly of rice to cadmium pollution
作者：Zhang, Feng;Xie, Yunhe;Ji, Xionghui;Liu, Saihua;Jiang, Huidan;Zhang, Feng;Jiang, Huidan;Zhang, Feng;Xie, Yunhe;Ji, Xionghui;Liu, Saihua;Peng, Rui;Jiang, Huidan
关键词：Paddy soil; Rice cultivars; Root-associated microbiome; Cd; Soil Fe availability; Siderophore-secreting microbe
-
Effect of citric acid and biochar addition on combined remediation of ryegrass-Streptomyces spp.
作者：Li, Shuyun;Zhu, Ziyu;Liu, Jiazhen;Fang, Ping;Ji, Xionghui;Fang, Ping;Fang, Ping
关键词：Biochar; citric acid; phytoremediation; ryegrass;
Streptomyces -
Quantify the environmental factors interaction affecting soil Cd/As accumulation in farmland using collaborative filtering model combining global spatial and local property graph
作者：Zhang, Renjie;Xie, Yunhe;Ji, Xionghui;Zhang, Renjie;Xie, Yunhe;Xue, Tao;Liu, Saihua;Tian, Faxiang;Ji, Xionghui;Pan, Shufang;Zhang, Renjie;Xie, Yunhe;Xue, Tao;Liu, Saihua;Tian, Faxiang;Ji, Xionghui;Pan, Shufang
关键词：Interaction effects; Graph attention; Collaborative filtering; Quantization model; Soil cd/as
-
Effects of Aqueous Ozone on Microbial Growth, Quality, and Shelf Life Extension of Chinese Bayberry (Myrica rubra Sieb. et Zucc)
作者：He, Zhongxiang;Li, Changjun;Ji, Xionghui;Peng, Hua;Liu, Shangru;He, Zhongxiang;Li, Changjun;Ji, Xionghui;Peng, Hua;Liu, Shangru;Wu, Weidong
关键词：aqueous ozone; Chinese bayberries; fruit preservation
-
Effects of geographical and soil factors on soilś arsenic levels: a case study in typical arsenic-contaminated paddy fields based on machine learning
作者：Zhang, Renjie;Xie, Yunhe;Pan, Shufang;Liu, Saihua;Huang, Rui;Ji, Xionghui;Xue, Tao;Zhang, Renjie;Huang, Rui;Ji, Xionghui;Jiang, Liheng;Dong, Tianhao;Xie, Yunhe;Pan, Shufang;Liu, Saihua;Ji, Xionghui;Xue, Tao
关键词：Soil arsenic; Machine learning; Geographical factors; Soil properties; Interactive effect; Paddy field
