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

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

叶宏萌^{1, 2,},
李国平^{1, 2, ,},
郑茂钟^{1, 2},
袁旭音^{1, 2},
徐晓敏¹,
李少华²

1.
武夷学院生态与资源工程学院, 福建武夷山 354300
2.
福建省生态产业绿色技术重点实验室, 福建武夷山 354300

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
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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

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

YE Hong-meng^{1, 2
,},
LI Guo-ping^{1, 2
, ,},
ZHENG Mao-zhong^{1, 2},
YUAN Xu-yin^{1, 2},
XU Xiao-min¹,
LI Shao-hua²

1.
School of Ecology and Resource Engineering, Wuyi University, Wuyishan, Fujian 354300, China
2.
Fujian Key Laboratory of Eco-Industrial Green Technology, Wuyishan, Fujian 354300, China

摘要

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。
- 重金属 /
- 化学形态 /
- 生物有效性 /
- 茶园土壤 /
- 武夷岩茶
Abstract: Objective Bioavailability of chromium (Cr), zinc (Zn) and nickel (Ni) as well as factors affecting it in plantation soil were studied as they closely relate to the growth of tea plants. Method Contents and forms of Cr, Zn and Ni in the soil and the leaves on plants at rock tea plantations in Mt. Wuyi, Fujian were determined. Factors affecting the bioavailability of these elements were analyzed. Result Majority of the elements in the sampled soils was residues from the native land, rather than accumulated from external sources. Both bioavailability and enrichment coefficients of Zn were the greatest followed by Ni, then Cr. The bioavailability of Ni inversely correlated to the pH and organic matters of the soil, and the enrichment coefficient of Zn to the pH only. Whereas, the Ni enrichment coefficient correlated inversely to the organic matters, altitude of plantation or age of plant. Conclusion Cr, Zn and Ni in the soil basically existed from the origin of the land. Their bioavailability directly governed the mineral absorption of the tea plants and could be affected to varying degrees by the pH and organic matters in soil, the elevation of plantation, and/or the age of tea bushes.
- Heavy metals /
- chemical form /
- bioavailability /
- tea plantation soil /
- Wuyi rock tea

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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

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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

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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	-	-

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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

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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
元素 Element	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

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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
元素 Element	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.

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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

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[20]	RINKLEBE J, SHAHEEN S M. Redox chemistry of nickel in soils and sediments:A review[J]. Chemosphere, 2017, 179:265-278. doi: 10.1016/j.chemosphere.2017.02.153
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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

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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

doi: 10.19303/j.issn.1008-0384.2019.06.013

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)

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

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留言板

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

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)

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

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出版历程

目录

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)