Is the computed speciation of copper in a wide range of Chinese soils reliable?

doi:10.1080/09542299.2017.1404437

	Is the computed speciation of copper in a wide range of Chinese soils reliable?
	Li, Bo 1; Ma, Yibing 2; Yang, Junxing 3
刊名	CHEMICAL SPECIATION AND BIOAVAILABILITY
	2017-11-22
卷号	29 期号:1 页码:205-215
关键词	Copper activity soil pore water distribution model prediction
ISSN号	0954-2299
DOI	10.1080/09542299.2017.1404437
通讯作者	Ma, Yibing(ybma@caas.ac.cn)
英文摘要	Free Cu species in soils is a key issue to its bioavailability. However, predictive models for Cu speciation across a wide range of soils were still unavailable. In this study, Cu speciation in 34 contaminated soil samples were investigated via analytical technique and predictive models. The results showed that most of free Cu2+ was underestimated when using default log K-CuFA and 65% active fulvic acid as inputs in models of WHAM VI and NICA-Donnan. The best prediction was found when using either adjusted active fulvic acid from 10% to 125% for WHAM VI or from 15% to 65% for NICA-Donnan model with the RMSE < 0.32 and r(2) > 0.96. In contrast, NICA-Donnan demonstrated a slightly stronger binding for Cu than WHAM VI due to extra 26% of samples was underestimated. This work presents a comprehensive database of Cu speciation and an effective attempt of free Cu2+ prediction in a wide range of Chinese soils.
资助项目	Natural Science Foundation of China[41401361] ; project of Research on Migration/Transformation and Safety Threshold of Heavy Metals in Farmland Systems[2016YFD0800406] ; Natural Science Foundation of Liaoning Province[2015020584] ; GDAS
WOS关键词	DISSOLVED ORGANIC-MATTER ; DONNAN MEMBRANE TECHNIQUE ; ION-SELECTIVE ELECTRODE ; CONTAMINATED SOILS ; METAL SPECIATION ; HEAVY-METALS ; NICA-DONNAN ; EQUILIBRIUM MODEL ; HUMIC SUBSTANCES ; NATURAL-WATERS
WOS研究方向	Biochemistry & Molecular Biology ; Environmental Sciences & Ecology ; Toxicology
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000423056200001
资助机构	Natural Science Foundation of China ; project of Research on Migration/Transformation and Safety Threshold of Heavy Metals in Farmland Systems ; Natural Science Foundation of Liaoning Province ; GDAS
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/60540]
专题	中国科学院地理科学与资源研究所
通讯作者	Ma, Yibing
作者单位	1.Liaoning Acad Agr Sci, Inst Plant Nutr & Environm Resources, Shenyang, Liaoning, Peoples R China 2.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Natl Soil Fertil & Fertilizer Effects Long Term M, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Environm Remediat, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Li, Bo,Ma, Yibing,Yang, Junxing. Is the computed speciation of copper in a wide range of Chinese soils reliable?[J]. CHEMICAL SPECIATION AND BIOAVAILABILITY,2017,29(1):205-215.
APA	Li, Bo,Ma, Yibing,&Yang, Junxing.(2017).Is the computed speciation of copper in a wide range of Chinese soils reliable?.CHEMICAL SPECIATION AND BIOAVAILABILITY,29(1),205-215.
MLA	Li, Bo,et al."Is the computed speciation of copper in a wide range of Chinese soils reliable?".CHEMICAL SPECIATION AND BIOAVAILABILITY 29.1(2017):205-215.