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Soil accumulation and chemical fractions of Cu in a large and long-term coastal apple orchard, North China

文献类型：期刊论文

作者Fu, Chuancheng1,2; Tu, Chen1; Zhang, Haibo3; Li, Yuan1; Li, Lianzhen1; Zhou, Qian1,4; Scheckel, Kirk G.5; Luo, Yongming1,2,4
刊名JOURNAL OF SOILS AND SEDIMENTS
出版日期2020-06-08
页码10
ISSN号1439-0108
关键词Accumulation Chemical fraction Coastal orchard Soil Copper Planting duration
DOI10.1007/s11368-020-02676-2
通讯作者Luo, Yongming(ymluo@issas.ac.cn)
英文摘要Purpose Coastal orchards, with greater humidity and precipitation, are favorable for fruit production, as well as mildew fungi development, thus becoming hot spots of Cu concentrations in soils due to the use of copper-based fungicides. However, little is known on the variation tendencies of Cu availability and mobility from these soils. This study aims to investigate the accumulation, spatial-temporal distribution, and chemical fractions of soil Cu in one of the largest coastal apple-producing area with over 40-year intensive cultivation in China. Materials and methods A total of 104 orchard and 31 farmland topsoil samples were collected from Jiaodong Peninsula, Shandong Province. The total Cu concentration (T-Cu) and major element components (MnO, TiO2, SiO2, Fe2O3, and Al2O3) in the soil were determined by X-ray fluorescence spectroscopy. Available Cu concentration (A-Cu) was extracted with HCl or DTPA. Chemical fractionations of Cu were determined via sequential extraction method. The variation tendencies of T-Cu, A-Cu, Cu available ratio (AR), and chemical fractions with planting duration in the orchards were explored while a cokriging method was selected to predict their spatial distributions. Moreover, Pearson's correlation and multiple linear stepwise regressions were constructed to distinguish the vital factors in controlling Cu availability and mobility from these soils. Results and discussion The results showed that long-term application of Cu-containing fungicides had increased Cu concentrations in orchard soils (85.77 mg kg(-1)) 3.5 times higher than the background value (24.0 mg kg(-1)) of local agricultural soils, in which 23.8% existed in the available form. Cu in the weak acid-soluble fraction (F1, 5.0 +/- 3.5 %), reducible fraction (F2, 24.7 +/- 6.6%), and oxidizable fraction (F3, 18.5 +/- 7.8%) in orchard soils increased significantly with increasing planting durations whereas the residual fraction (F4, 51.7 +/- 15.4%) exhibited a reverse trend. Total content, available content, and chemical fractions of Cu showed strong spatial heterogeneity. The availability and mobility of Cu in orchard soils were mainly controlled by total Cu content, pH, and soil organic carbon. Conclusions Coastal orchards under warm and humid climate condition in China exhibited higher Cu input, along with acidification and rapid organic carbon turnover in the soils, eventually leading to large accumulation and high mobility of Cu in the soils.
WOS关键词VINEYARD SOILS ; COPPER ACCUMULATION ; HEAVY-METALS ; CONTAMINATED SOILS ; BIOAVAILABILITY ; AREA ; PH ; EXTRACTABILITY ; IDENTIFICATION ; ACIDIFICATION
资助项目National Key R&D Programs of China[2016YFE0106400] ; National Key R&D Programs of China[2018YFC1801001]
WOS研究方向Environmental Sciences & Ecology ; Agriculture
语种英语
WOS记录号WOS:000539378800001
资助机构National Key R&D Programs of China
源URL[http://ir.yic.ac.cn/handle/133337/28712]  
专题烟台海岸带研究所_近岸生态与环境实验室
烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
通讯作者Luo, Yongming
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
2.Chinese Acad Sci, Inst Soil Sci, CAS Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Peoples R China
3.Zhejiang A&F Univ, Sch Environm & Resource Sci, Zhejiang Prov Key Lab Soil Contaminat Bioremediat, Hangzhou 311300, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.US EPA, Ctr Environm Solut & Emergency Response, Cincinnati, OH 45268 USA
推荐引用方式
GB/T 7714		 Fu, Chuancheng,Tu, Chen,Zhang, Haibo,et al. Soil accumulation and chemical fractions of Cu in a large and long-term coastal apple orchard, North China[J]. JOURNAL OF SOILS AND SEDIMENTS,2020:10.
APA Fu, Chuancheng.,Tu, Chen.,Zhang, Haibo.,Li, Yuan.,Li, Lianzhen.,...&Luo, Yongming.(2020).Soil accumulation and chemical fractions of Cu in a large and long-term coastal apple orchard, North China.JOURNAL OF SOILS AND SEDIMENTS,10.
MLA Fu, Chuancheng,et al."Soil accumulation and chemical fractions of Cu in a large and long-term coastal apple orchard, North China".JOURNAL OF SOILS AND SEDIMENTS (2020):10.

入库方式： OAI收割

来源：烟台海岸带研究所

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