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武夷岩茶土壤铬、锌、镍元素的生物有效性及其影响因素

叶宏萌 李国平 郑茂钟 袁旭音 徐晓敏 李少华

叶宏萌, 李国平, 郑茂钟, 袁旭音, 徐晓敏, 李少华. 武夷岩茶土壤铬、锌、镍元素的生物有效性及其影响因素[J]. 福建农业学报, 2019, 34(6): 711-718. doi: 10.19303/j.issn.1008-0384.2019.06.013
引用本文: 叶宏萌, 李国平, 郑茂钟, 袁旭音, 徐晓敏, 李少华. 武夷岩茶土壤铬、锌、镍元素的生物有效性及其影响因素[J]. 福建农业学报, 2019, 34(6): 711-718. doi: 10.19303/j.issn.1008-0384.2019.06.013
YE Hong-meng, LI Guo-ping, ZHENG Mao-zhong, YUAN Xu-yin, XU Xiao-min, LI Shao-hua. Factors Affecting Bioavailability of Chromium, Zinc and Nickel in Soil at Wuyi Rock Tea Plantations[J]. Fujian Journal of Agricultural Sciences, 2019, 34(6): 711-718. doi: 10.19303/j.issn.1008-0384.2019.06.013
Citation: YE Hong-meng, LI Guo-ping, ZHENG Mao-zhong, YUAN Xu-yin, XU Xiao-min, LI Shao-hua. Factors Affecting Bioavailability of Chromium, Zinc and Nickel in Soil at Wuyi Rock Tea Plantations[J]. Fujian Journal of Agricultural Sciences, 2019, 34(6): 711-718. doi: 10.19303/j.issn.1008-0384.2019.06.013

武夷岩茶土壤铬、锌、镍元素的生物有效性及其影响因素

doi: 10.19303/j.issn.1008-0384.2019.06.013
基金项目: 

福建省科技创新平台建设计划项目 2017N2005

福建省科技星火计划项目 2016S0059

福建省科技厅引导性项目 2019Y0045

详细信息
    作者简介:

    叶宏萌(1984-), 女, 博士, 讲师, 主要从事水资源保护和环境地球化学研究(E-mail:hongmengye@sina.com)

    通讯作者:

    李国平(1966-), 男, 博士, 教授, 主要从事植物多样性保护与利用研究(E-mail:ptlgp@126.com)

  • 中图分类号: X53

Factors Affecting Bioavailability of Chromium, Zinc and Nickel in Soil at Wuyi Rock Tea Plantations

  • 摘要:   目的  茶园土壤中适量的铬(Cr)、锌(Zn)、镍(Ni)有利于茶树的生长,为此,本文探讨武夷岩茶土壤Cr、Zn和Ni元素的生物有效性及其影响因素,以期指导生态茶园建设和提高茶叶品质。  方法  以武夷岩茶土壤和茶叶为研究对象,测定Cr、Zn和Ni在武夷岩茶土壤和茶叶中的含量及土壤中的化学形态,通过生物可利用性系数及富集系数两种方法评价各元素的生物有效性特征,并利用相关系数进行影响因素分析。  结果  研究区土壤Cr、Zn和Ni元素均以残渣态为优势形态,三者的生物可利用性系数与茶叶富集系数的均值大小顺序一致(Zn > Ni > Cr)。同时,土壤Ni的生物可利用性系数与土壤pH值和有机质呈显著负相关,茶叶对Zn元素的富集系数与土壤pH值表现出显著负相关,茶叶对Ni元素的富集系数与土壤有机质、海拔、树龄都呈显著负相关。  结论  研究区土壤Cr、Zn和Ni元素主要来源于土壤母质,它们的生物有效性特征直接影响着茶叶对其的吸收。此外,3种元素的生物有效性在不同程度上受土壤pH值、有机质、茶园海拔和茶龄的影响。
  • 表  1  采样点基本情况

    Table  1.   Descriptions of sampling lots

    采样区域
    Sampling area
    编号
    Number
    地点
    Site
    经度
    Longitude
    纬度
    Latitude
    海拔
    Altitude/m
    成土母质
    Parent material
    品种
    Varieties
    树龄
    Tree age/a
    景区
    Scenic areas
    TYF 天游峰
    Tianyou peak
    117°56′43″ 27°38′48″ 249 红色砂粒岩
    Red sandstone
    水仙
    Shuixian
    25
    YNF 玉女峰
    Yunü peak
    117°57′07″ 27°38′34″ 260 红色砂粒岩
    Red sandstone
    肉桂
    Rougui
    25
    YZY 鹰嘴岩
    Eagle beak hill
    117°58′57″ 27°40′59″ 414 红色砂粒岩
    Red sandstone
    肉桂
    Rougui
    20
    LHF1 莲花峰
    Lianhua peak
    117°56′30″ 27°41′26″ 216 红色砂粒岩
    Red sandstone
    大红袍
    Dahongpao
    7
    LHF2 玉林亭
    Yulin pavilion
    117°56′29″ 27°41′25″ 216 红色砂粒岩
    Red sandstone
    大红袍
    Dahongpao
    6
    生态保护区
    Ecological zones
    HX1 红星村
    Hongxing village
    117°49′4″ 27°39′48″ 226 粗晶花岗岩
    Coarse-grained granite
    大红袍
    Dahongpao
    2
    HX2 红星村
    Hongxing village
    117°49′4″ 27°39'48″ 226 粗晶花岗岩
    Coarse-grained granite
    大红袍
    Dahongpao
    5
    HX6 红星村
    Hongxing village
    117°49′4″ 27°39′48″ 263 粗晶花岗岩
    Coarse-grained granite
    水仙
    Shuixian
    9
    TM16 红星村
    Hongxing village
    117°49′17″ 27°39′47″ 264 粗晶花岗岩
    Coarse-grained granite
    肉桂
    Rougui
    8
    YL2 玉龙谷
    Yulong Valley
    117°49′48″ 27°38′45″ 250 粗晶花岗岩
    Coarse-grained granite
    大红袍
    Dahongpao
    14
    HX8 红星村
    Hongxing village
    117°49′27″ 27°39′34″ 266 粗晶花岗岩
    Coarse-grained granite
    水仙
    Shuixian
    35
    自然保护区
    Nature reserve
    TM2 皮坑村
    Pikeng village
    117°43′33″ 27°42′23″ 475 粗晶花岗岩
    Coarse-grained granite
    水仙
    Shuixian
    30
    TM7 庙湾村
    Miaowan village
    117°41′17″ 27°45′49″ 857 粗晶花岗岩
    Coarse-grained granite
    水仙
    Shuixian
    45
    TM8 庙湾村
    Miaowan village
    117°41′17″ 27°45′49″ 834 粗晶花岗岩
    Coarse-grained granite
    水仙
    Shuixian
    42
    TM9 庙湾村
    Miaowan village
    117°41′17″ 27°45′49″ 807 粗晶花岗岩
    Coarse-grained granite
    水仙
    Shuixian
    40
    TM10 桐木村
    Tongmu village
    117°41′48″ 27°46′53″ 911 火山凝灰岩
    Volcanic tuff
    肉桂
    Rougui
    88
    TM11 桐木村
    Tongmu village
    117°41′48″ 27°46′53″ 888 粗晶花岗岩
    Coarse-grained granite
    肉桂
    Rougui
    83
    TM12 桐木村
    Tongmu village
    117°41′48″ 27°46′53″ 875 粗晶花岗岩
    Coarse-grained granite
    肉桂
    Rougui
    87
    TM17 皮坑村
    Pikeng village
    117°43′12″ 27°42′51″ 467 粗晶花岗岩
    Coarse-grained granite
    水仙
    Shuixian
    10
    下载: 导出CSV

    表  2  武夷山茶园土壤基本化学性质

    Table  2.   Basic physicochemical properties of soil at Wuyi rock tea plantations

    项目
    Items
    最小值
    Min.
    最大值
    Max.
    平均值
    Mean
    标准差
    SD.
    CV/% 福建省土壤背景值[12]
    Background value of soil in Fujian province[12]
    GB 15618-2018[13]
    pH 4.21 5.78 4.87 0.44 9.01 4.7 -
    OM/(g·kg-1) 28.69 65.10 46.83 10.8 23.12 29.8 -
    Cr/(mg·kg-1) 16.34 172.90 67.46 48.86 72.44 82.7 150
    Zn/(mg·kg-1) 50.27 228.58 119.73 47.45 39.63 41.3 200
    Ni/(mg·kg-1) 5.82 33.16 15.44 8.89 57.58 13.5 60
    下载: 导出CSV

    表  3  武夷岩茶土壤Cr、Zn、Ni形态组分的分布

    Table  3.   Forms of Cr, Zn and Ni in soil at Wuyi rock tea plantations

    元素
    Elemen
    化学形态
    Chemical form
    范围
    Range/(mg·kg-1)
    平均值
    Mean /(mg·kg-1)
    占全量比值范围
    Ratio range of total quantity/%
    平均比值
    Average ratio/%
    Cr 水溶态Water soluble 0.025~0.561 0.145 0.078~0.700 0.250
    离子交换态Exchangeable 0.008~0.138 0.076 0.032~0.597 0.132
    碳酸盐态Carbonate 0.157~0.647 0.321 0.256~2.513 0.553
    腐殖酸态Humic acid state 2.262~14.170 5.712 6.455~18.130 9.849
    铁锰结合态Fe/Mn oxide bound 0.309~4.086 0.878 0.614~3.959 1.514
    强有机态Strongly bound to organic matter 0.832~7.786 2.461 2.456~11.575 4.244
    残渣态Residual 9.404~118.750 48.399 62.988~88.686 83.459
    全量Total state 14.930~140.091 57.992 - -
    Zn 水溶态Water soluble 0.335~1.630 0.670 0.230~1.339 0.621
    离子交换态Exchangeable 2.482~23.608 5.197 1.796~11.679 4.812
    碳酸盐态Carbonate 0.589~10.268 1.896 0.696~5.079 1.756
    腐殖酸态Humic acid state 2.358~22.220 6.793 2.779~11.035 6.289
    铁锰结合态Fe/Mn oxide bound 1.173~10.461 3.832 1.516~5.653 3.549
    强有机态Strongly bound to organic matter 1.388~8.194 3.829 2.338~4.829 3.546
    残渣态Residual 32.117~138.677 85.782 62.214~88.014 79.427
    全量Total state 41.039~202.139 108.000 - -
    Ni 水溶态Water soluble 0.031~0.293 0.091 0.282~1.969 0.650
    离子交换态Exchangeable 0.155~0.860 0.335 1.030~7.125 2.392
    碳酸盐态Carbonate 0.045~0.615 0.156 0.296~3.474 1.118
    腐殖酸态Humic acid state 0.432~3.148 1.225 3.204~15.594 8.757
    铁锰结合态Fe/Mn oxide bound 0.276~6.480 1.992 3.349~25.126 14.245
    强有机态Strongly bound to organic matter 0.180~1.152 0.530 2.943~5.130 3.792
    残渣态Residual 2.962~19.526 9.657 51.040~86.024 69.047
    全量Total state 5.030~31.648 13.986 - -
    下载: 导出CSV

    表  4  武夷岩茶Cr、Zn和Ni含量

    Table  4.   Cr, Zn and Ni contents in Wuyi rock tea

    元素
    Element
    最小值
    Min./(mg·kg-1)
    最大值
    Max./(mg·kg-1)
    平均值
    Mean/(mg·kg-1)
    标准差
    SD.
    变异系数
    CV/%
    Cr 0.180 0.775 0.264 0.128 48.46
    Zn 27.740 55.807 41.343 8.360 20.22
    Ni 0.063 2.528 0.469 0.602 128.54
    下载: 导出CSV

    表  5  武夷岩茶土壤Cr、Zn和Ni的生物有效性评价

    Table  5.   Bioavailability of Cr, Zn and Ni in soil at Wuyi rock tea plantations

    元素
    Element
    生物可利用性系数Bioavailability coefficient 富集系数Enrichment factor
    范围
    Range
    平均值
    Mean
    标准差
    SD.
    变异系数
    CV/%
    范围
    Range
    平均值
    Mean
    标准差
    SD.
    变异系数
    CV/%
    Cr 0.180~0.775 0.264 0.128 48.462 0.001~0.0132 0.006 0.003 58.510
    Zn 27.740~55.807 41.343 8.360 20.222 0.172~0.876 0.402 0.182 45.298
    Ni 0.0632~2.528 0.469 0.602 128.535 0.007~0.0762 0.026 0.019 73.689
    下载: 导出CSV

    表  6  武夷岩茶土壤Cr、Zn和Ni生物有效性的影响因子分析

    Table  6.   Factors affecting bioavailability of Cr, Zn and Ni in soil at Wuyi rock tea plantations

    元素
    Element
    生物可利用性系数Bioavailability coefficient 富集系数Enrichment factor
    pH OM 海拔Altitude 树龄Tree-age pH OM 海拔Altitude 树龄Tree-age
    Cr -0.187 -0.244 -0.062 -0.145 -0.201 0.181 -0.331 -0.166
    Zn -0.031 -0.004 -0.075 -0.056 -0.530* -0.198 -0.004 -0.018
    Ni -0.548* -0.439* -0.292 -0.199 0.029 -0.595** -0.570* -0.548*
    注:“*”表示相关性在0.05水平显著;“**”表示相关性在0.01水平显著。表 7同。
    Note:“*” means significant correlation at 0.05 level; “**” means significant correlation at 0.01 level.The same as Table 7.
    下载: 导出CSV

    表  7  茶叶中Cr、Zn、Ni元素与土壤对应元素赋存形态的相关系数

    Table  7.   Correlation coefficients between Cr, Zn and Ni in tea and their forms in soil

    元素
    Element
    水溶态
    Water soluble
    离子交换态
    Exchangeable
    碳酸盐态
    Carbonate
    腐殖酸态
    Humic acid state
    铁锰结合态
    Fe/Mn oxide bound
    强有机态
    Strongly bound to organic matter
    残渣态
    Residual
    Cr 0.475* 0.353* 0.241 -0.074 0.220 0.171 -0.010
    Zn 0.412* 0.651** 0.318 0.410* 0.268 0.305 0.214
    Ni 0.317* 0.244 0.306 0.279 0.418* 0.278 -0.025
    下载: 导出CSV
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出版历程
  • 收稿日期:  2019-03-05
  • 修回日期:  2019-04-20
  • 刊出日期:  2019-06-28

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