Enrichment of trace elements in soil-tea system in Meitan tea area of Guizhou and origin traceability

doi:10.3969/j.issn.1004-1524.2022.02.20

Acta Agriculturae Zhejiangensis ›› 2022, Vol. 34 ›› Issue (2): 378-390.DOI: 10.3969/j.issn.1004-1524.2022.02.20

• Quality and Safety of Agricultural Products • Previous Articles Next Articles

Enrichment of trace elements in soil-tea system in Meitan tea area of Guizhou and origin traceability

ZHANG Peng¹^,²(), YANG Xueyan¹^,², HONG Jing¹^,², ZHANG Yali¹^,², TIAN Xiaojing¹^,²^,^*(), ZHANG Fumei², CAO Hong¹, CHEN Shi’en¹, MA Zhongren¹^,², DING Gongtao¹, SONG Li³, LUO Li³

1. College of Life Science and Engineering, Northwestern Minzu University, Lanzhou 730124, China
2. China-Malaysia National Joint Laboratory, Biomedical Research Center, Northwest Minzu University, Lanzhou 730030, China
3. Gannan Research Institute of Yak Milk, Hezuo 747000, Gansu, China

Received:2021-06-04 Online:2022-02-25 Published:2022-03-02
Contact: TIAN Xiaojing

Abstract

Abstract:

To study the migration and characteristics of trace elements in soil-tea system in Meitan tea area, Guizhou Province, tea leaves and soil from 12 villages including Xima Town and Yuquan Town in Meitan County were collected and contents of 11 trace elements including Ce, Co, Fe, La, Mg, Mn, Na, Ni, Pr, Se and Zn were detected by inductively coupled plasma optical emission spectrometer (ICP-OES). The results showed that average contents of Ni, Zn and other heavy metals in the soil were lower than the national limit standard, and the single pollution index (P_i) ≤1 and the index of geo-accumulation (I_geo) ≤0, indicated that Meitan tea area soil were not polluted. In addition, Meitan tea area met the requirements of selenium-rich soil, but the pollution indexes of Co, Pr and Ni were close to the pollution limit. Therefore, it was suggested that the tea area should reduce the emission of toxic and harmful substances containing Co, Pr and Ni, so as to solve the hidden danger of element pollution in the future and keep the soil clean. At the same time, according to the national standard, content of heavy metals in Meitan tea did not exceed the standard, and some tea areas in Meitan met the requirements of selenium-rich tea. It could also be seen that in the tea-soil-pH system, tea had positive or negative correlations with most elements in the upper and lower layers of soil, and pH value of the upper and lower layers of the soil was also positively or negatively correlated with contents of some elements in the soil. Enrichment ability of Mn element in the tea tree was strong, and the absorption of Mn element had a certain antagonistic effect on the absorption of Mg, Na, Ni, Pr, Co and Se. In this study, principal component analysis and canonical discriminant analysis were used to study the characteristics of the upper and lower layers of soil and tea in Meitan tea area. It was found that both principal component analysis and canonical discriminant analysis could distinguish the tea leaves and soil in the 12 tea areas, which not only realized the differentiation of soil in different tea areas, but also distinguished the upper and lower layers of the soil in the same tea area, and the data points in the canonical discriminant analysis showed better aggregation. The above results indicated that there were differences in the contents of trace elements in tea leaves and soil in different regions of Meitan tea area, with obvious characteristics. In this study, the characteristics of trace elements in the soil-tea system in Meitan tea area were systematically explored to provide a basis for the enrichment, migration and origin traceability of trace elements in the soil-tea system in Meitan tea area in Guizhou Province.

Key words: Meitan County, soil, tea, trace elements, enrichment, pollution index

CLC Number:

S571.1
X825

ZHANG Peng, YANG Xueyan, HONG Jing, ZHANG Yali, TIAN Xiaojing, ZHANG Fumei, CAO Hong, CHEN Shi’en, MA Zhongren, DING Gongtao, SONG Li, LUO Li. Enrichment of trace elements in soil-tea system in Meitan tea area of Guizhou and origin traceability[J]. Acta Agriculturae Zhejiangensis, 2022, 34(2): 378-390.

Figures/Tables 12

References 24

[1]	李秀平, 欧阳建, 周方, 等. 茶叶功能成分预防心血管疾病研究进展[J]. 食品科学, 2020, 41(21):311-320.
	LI X P, OUYANG J, ZHOU F, et al. Recent advances in research on functional components in tea that can prevent cardiovascular disease[J]. Food Science, 2020, 41(21):311-320.(in Chinese with English abstract)
[2]	张圆. 贵州绿茶品牌发展策略初探: 以湄潭翠芽为例[J]. 贵州茶叶, 2019, 47(1):35-38.
	ZHANG Y. Preliminary study on the development strategy of green tea brand in Guizhou: taking Meitan Cuiya tea for example[J]. Guizhou Tea, 2019, 47(1):35-38.(in Chinese with English abstract)
[3]	柳书俊, 姚新转, 赵德刚, 等. 湄潭茶园土壤养分特征及肥力质量评价[J]. 草业学报, 2020, 29(11):33-45.
	LIU S J, YAO X Z, ZHAO D G, et al. An evaluation of soil nutrient status and balance in Meitan tea plantations[J]. Acta Prataculturae Sinica, 2020, 29(11):33-45.(in Chinese with English abstract)
[4]	胡家琴, 张珍明, 张清海, 等. 贵州鸟王茶产地土壤与茶叶中微量元素含量的相关性[J]. 贵州农业科学, 2014, 42(12):79-83.
	HU J Q, ZHANG Z M, ZHANG Q H, et al. Correlation between soil and microelement content in Niaowang tea in Guizhou[J]. Guizhou Agricultural Sciences, 2014, 42(12):79-83.(in Chinese with English abstract)
[5]	刘春林, 张建, 彭益书, 等. 贵州雷山茶区土壤-茶叶重金属含量特征及饮茶风险评价[J]. 浙江农业学报, 2020, 32(6):1049-1059.
	LIU C L, ZHANG J, PENG Y S, et al. Contents and health risks assessment of heavy metals in soil and tea in Leishan, Guizhou Province[J]. Acta Agriculturae Zhejiangensis, 2020, 32(6):1049-1059.(in Chinese with English abstract)
[6]	刘德成, 李玉倩, 郑纯静, 等. 土壤重金属污染风险评价方法对比研究[J]. 河北农业科学, 2020, 24(4):89-95.
	LIU D C, LI Y Q, ZHENG C J, et al. Comparative study on risk assessment methods of heavy metal pollution in soil[J]. Journal of Hebei Agricultural Sciences, 2020, 24(4):89-95.(in Chinese with English abstract)
[7]	OLIVEIRA T S, XAVIER D D A, SANTOS L D, et al. Geochemical background indicators within a tropical estuarine system influenced by a port-industrial complex[J]. Marine Pollution Bulletin, 2020, 161:111794. DOI URL
[8]	HOSSAIN BHUIYAN M A, CHANDRA KARMAKER S, BODRUD-DOZA M, et al. Enrichment, sources and ecological risk mapping of heavy metals in agricultural soils of Dhaka district employing SOM, PMF and GIS methods[J]. Chemosphere, 2021, 263:128339. DOI URL
[9]	冉登培. 贵州地区茶叶微量元素分析及稀土影响因素探究[D]. 重庆: 西南大学, 2014.
	RAN D P. Study of trace elements and rare earth influence factors analysis of tea in Guizhou area[D]. Chongqing: Southwest University, 2014. (in Chinese with English abstract)
[10]	聂刚, 梁灵, 李忠宏, 等. 陕南茶叶稀土元素产地特征研究[J]. 中国稀土学报, 2014, 32(6):758-763.
	NIE G, LIANG L, LI Z H, et al. Origin characteristics of rare earth elements in tea in south Shaanxi Province[J]. Journal of the Chinese Society of Rare Earths, 2014, 32(6):758-763.(in Chinese with English abstract)
[11]	林昕, 黎其万, 和丽忠, 等. 基于稀土元素指纹分析判别普洱古树茶和台地茶的研究[J]. 现代食品科技, 2013, 29(12):2921-2925.
	LIN X, LI Q W, HE L Z, et al. Application of heavy rare earth element fingerprints in discrimination of Pu’er old plant tea and tableland tea[J]. Modern Food Science and Technology, 2013, 29(12):2921-2925.(in Chinese with English abstract)
[12]	ÁVILA D V L, SOUZA S O, COSTA S S L, et al. Multivariate optimization of conditions for digestion of wet feeds for dogs and cats using a closed digester block and multielement determination by ICP-OES[J]. Journal of AOAC International, 2017, 100(5):1483-1491. DOI URL
[13]	刘元林, 张棚, 张宇霞, 等. 南方与北方茶叶中矿质元素研究[J]. 茶叶通讯, 2020, 47(3):456-461.
	LIU Y L, ZHANG P, ZHANG Y X, et al. Study on mineral elements in tea from of south and north China[J]. Journal of Tea Communication, 2020, 47(3):456-461.(in Chinese with English abstract)
[14]	国家环境保护局主持中国环境监测总站. 中国土壤元素背景值[M]. 北京: 中国环境科学出版社, 1990.
[15]	葛元英, 乔乔, 张鹏, 等. 晋南铬渣堆场主要植物重金属富集特征[J]. 环境污染与防治, 2020, 42(7):833-837.
	GE Y Y, QIAO Q, ZHANG P, et al. Heavy metal enrichment characteristics of dominant plants naturally growing on chromium residue dump site in southern Shanxi[J]. Environmental Pollution & Control, 2020, 42(7):833-837.(in Chinese with English abstract)
[16]	赵佐平, 付静, 岳思羽, 等. 陕南茶园产地环境现状及其潜在生态风险评价[J]. 农业环境科学学报, 2020, 39(9):1983-1992.
	ZHAO Z P, FU J, YUE S Y, et al. Assessing producing environment and potential ecological risk of tea plantation in southern Shaanxi Province[J]. Journal of Agro-Environment Science, 2020, 39(9):1983-1992.(in Chinese with English abstract)
[17]	马恩亮. 微波消解-电感耦合等离子体质谱(ICP-MS)法同时测定茶叶中25种元素[J]. 现代预防医学, 2020, 47(20):3793-3796.
	MA E L. Determination of 25 elements in tea by microwave Digestion-ICP-MS[J]. Modern Preventive Medicine, 2020, 47(20):3793-3796.(in Chinese with English abstract)
[18]	冉登培, 杨坚, 王家伦, 等. 贵州4个主要产茶区春茶中的微量元素含量差异[J]. 贵州农业科学, 2014, 42(4):72-75.
	RAN D P, YANG J, WANG J L, et al. Differentiation of trace elements in spring tea from four main tea-producing areas in Guizhou[J]. Guizhou Agricultural Sciences, 2014, 42(4):72-75.(in Chinese with English abstract)
[19]	张清海, 林绍霞, 谭红, 等. 黔南州不同茶区土壤和茶叶重金属污染区域的差异性[J]. 贵州农业科学, 2012, 40(9):124-128.
	ZHANG Q H, LIN S X, TAN H, et al. Regional differences of heavy metals in soil and tea in tea areas of south Guizhou[J]. Guizhou Agricultural Sciences, 2012, 40(9):124-128.(in Chinese with English abstract)
[20]	李渝, 刘彦伶, 黄兴成, 等. 贵州不同茶区土壤养分及微生物量分析评价[J]. 灌溉排水学报, 2018, 37(8):98-105.
	LI Y, LIU Y L, HUANG X C, et al. Assessing soil nutrient and microbial biomass in tea plantation regions of Guizhou Province[J]. Journal of Irrigation and Drainage, 2018, 37(8):98-105.(in Chinese with English abstract)
[21]	谢再波, 李干蓉, 王先华, 等. 贵州石阡苔茶产区土壤和茶叶中重金属的监测与污染评价[J]. 农业灾害研究, 2020, 10(6):164-166.
	XIE Z B, LI G R, WANG X H, et al. Monitoring and pollution assessment of heavy metals in soil and tea in Shiqiantai tea producing area of Guizhou Province[J]. Journal of Agricultural Catastrophology, 2020, 10(6):164-166.(in Chinese with English abstract)
[22]	仝双梅, 连国奇. 贵州某茶叶种植区土壤重金属含量及环境质量评价[J]. 福建茶叶, 2018, 40(11):403.
	TONG S M, LIAN G Q. Soil heavy metal content and environmental quality evaluation in a tea planting area in Guizhou[J]. Tea in Fujian, 2018, 40(11):403.(in Chinese)
[23]	刘宏程, 林昕, 和丽忠, 等. 基于稀土元素含量的普洱茶产地识别研究[J]. 茶叶科学, 2014, 34(5):451-457.
	LIU H C, LIN X, HE L Z, et al. The discrimination of Pu’er tea according to region of origin using the content of heavy rare-earth elements[J]. Journal of Tea Science, 2014, 34(5):451-457.(in Chinese with English abstract)
[24]	龚自明, 王雪萍, 高士伟, 等. 矿物元素分析判别绿茶产地来源研究[J]. 四川农业大学学报, 2012, 30(4):429-433.
	GONG Z M, WANG X P, GAO S W, et al. Determination of geographical origin of green teas using mineral element content[J]. Journal of Sichuan Agricultural University, 2012, 30(4):429-433.(in Chinese with English abstract)

编号 Serial number	取样地点 Sampling spot	样品数量 Sample quantity	经纬度 Latitude and longitude	茶叶简称 Abbreviation of tea	土壤上层简称 Abbreviation of upper soil layer	土壤下层简称 Abbreviation of lower soil layer
1	石莲镇Shilian town	5	27°25'42.77″N,107°25'3.79″E	SLC	SLTS	SLTX
2	复兴镇Fuxing town	5	27°59'48.16″N,107°37'18.15″E	FXC	FXTS	FXTX
3	新南镇Xinnan town	5	27°32'25.60″N,107°19'18.18″E	XNC	XNTS	XNTX
4	洗马乡Xima town	5	27°57'29.25″N,107°31'7.84″E	XMC	XMTS	XMTX
5	鱼泉镇Yuquan town	5	27°52'26.22″N,107°29'34.00″E	YQC	YQTS	YQTX
6	马山镇Mashan town	5	28°3'16.54″N,107°35'20.88″E	MSC	MSTS	MSTX
7	西河乡Xihe town	5	28°9'19.95″N,107°32'30.31″E	XHC	XHTS	XHTX
8	永兴镇Yongxing town	5	27°52'30.94″N,107°35'26.49″E	YXC	YXTS	YXTX
9	高台镇Gaotai town	5	27°37'13.25″N,107°23'21.92″E	GTC	GTTS	GTTX
10	抄乐镇Chaole town	5	27°40'30.97″N,107°34'6.49″E	CLC	CLTS	CLTX
11	湄江街道Meijiang street	5	27°46'22.01″N,107°28'59.33″E	MJC	MJTS	MJTX
12	黄家坝镇Huangjiaba town	5	27°44'22.12″N,E107°25'32.78″	HJC	HJTS	HJTX

编号 Serial number	取样地点 Sampling spot	样品数量 Sample quantity	经纬度 Latitude and longitude	茶叶简称 Abbreviation of tea	土壤上层简称 Abbreviation of upper soil layer	土壤下层简称 Abbreviation of lower soil layer
1	石莲镇Shilian town	5	27°25'42.77″N,107°25'3.79″E	SLC	SLTS	SLTX
2	复兴镇Fuxing town	5	27°59'48.16″N,107°37'18.15″E	FXC	FXTS	FXTX
3	新南镇Xinnan town	5	27°32'25.60″N,107°19'18.18″E	XNC	XNTS	XNTX
4	洗马乡Xima town	5	27°57'29.25″N,107°31'7.84″E	XMC	XMTS	XMTX
5	鱼泉镇Yuquan town	5	27°52'26.22″N,107°29'34.00″E	YQC	YQTS	YQTX
6	马山镇Mashan town	5	28°3'16.54″N,107°35'20.88″E	MSC	MSTS	MSTX
7	西河乡Xihe town	5	28°9'19.95″N,107°32'30.31″E	XHC	XHTS	XHTX
8	永兴镇Yongxing town	5	27°52'30.94″N,107°35'26.49″E	YXC	YXTS	YXTX
9	高台镇Gaotai town	5	27°37'13.25″N,107°23'21.92″E	GTC	GTTS	GTTX
10	抄乐镇Chaole town	5	27°40'30.97″N,107°34'6.49″E	CLC	CLTS	CLTX
11	湄江街道Meijiang street	5	27°46'22.01″N,107°28'59.33″E	MJC	MJTS	MJTX
12	黄家坝镇Huangjiaba town	5	27°44'22.12″N,E107°25'32.78″	HJC	HJTS	HJTX

地累积指数 Geoaccumulation index	分级 Grade	污染程度 Degree of pollution
I_geo<0	0级 Level 0	无污染 No pollution
0≤I_geo<1	1级 Level 1	无污染到中度污染 No pollution to moderate pollution
1≤I_geo<2	2级 Level 2	中度污染 Moderate pollution
2≤I_geo<3	3级 Level 3	中度污染到强污染 Moderate to strong pollution
3≤I_geo<4	4级 Level 4	强污染 Strong pollution
4≤I_geo<5	5级 Level 5	强污染到极强度污染 Heavy pollution to extreme pollution
I_geo≥5	6级 Level 6	极强污染 Extreme pollution

地累积指数 Geoaccumulation index	分级 Grade	污染程度 Degree of pollution
I_geo<0	0级 Level 0	无污染 No pollution
0≤I_geo<1	1级 Level 1	无污染到中度污染 No pollution to moderate pollution
1≤I_geo<2	2级 Level 2	中度污染 Moderate pollution
2≤I_geo<3	3级 Level 3	中度污染到强污染 Moderate to strong pollution
3≤I_geo<4	4级 Level 4	强污染 Strong pollution
4≤I_geo<5	5级 Level 5	强污染到极强度污染 Heavy pollution to extreme pollution
I_geo≥5	6级 Level 6	极强污染 Extreme pollution

元素 Element	波长 Wavelength/nm	标准曲线 Standard curve	相关系数 Related coefficient	相对标准偏差 Relative standard deviation/%
Ce	418.650	y=25 582.581 60x+80.983 22	0.999 80	1.40
Co	238.892	y=9 169.647 02x-2.911 69	0.999 95	1.64
Fe	238.204	y=24 370.335 46x+1 019.292 73	0.998 28	0.37
La	333.749	y=79 738.853 61x+191.108 87	0.999 91	0.40
Mg	279.553	y=540 801.988 11x+7 210.500 76	0.995 46	0.52
Mn	257.610	y=168 638.214 11x+1 366.033 78	0.994 44	1.57
Na	589.592	y=16 431.609 90x+1 368.538 55	0.999 18	0.76
Ni	231.604	y=2 826.810 90x+44.797 87	0.999 97	0.53
Pr	417.939	y=25 174.063 29x+26.575 91	0.999 85	2.05
Se	196.026	y=535.128 98x+7.540 62	0.999 95	3.68
Zn	213.857	y=25 455.363 07x+148.422 21	0.999 93	0.35

Enrichment of trace elements in soil-tea system in Meitan tea area of Guizhou and origin traceability

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土壤	样品	Ce	Co	Fe	La	Mg	Mn	Na	Ni	Pr	Se	Zn
Soil	Sample
上层 Upper	SLTS	12.96 ±0.16 d	14.33 ±0.34 d	18 152 ±91.49 d	7.40 ±0.03 c	294.84 ±3.30 j	13.50 ±0.07 a	137.52 ±0.86 d	10.94 ±0.14 h	4.51 ±0.11 e	16.69 ±0.76 c	23.51 ±0.10 d
layers	FXTS	6.72 ±0.02 g	6.13 ±0.36 g	14 922 ±35.64 g	3.85 ±0.01 l	260.62 ±0.72 k	0.15 ±0.01 i	63.68 ±0.29 j	10.11 ±0.09 j	2.52 ±0.01 h	15.77 ±0.10 d	7.19 ±0.12 h
	XNTS	7.35 ±0.09 f	11.87 ±0.44 f	15 212 ±37.01 f	5.92 ±0.03 g	646.52 ±2.70 c	4.35 ±0.02 g	116.54 ±0.53 f	11.12 ±0.21 g	4.49 ±0.03 e	16.19 ±0.18 cd	8.12 ±0.12 f
	XMTS	4.56 ±0.051 k	14.68 ±0.47 cd	13 174 ±20.74 k	5.19 ±0.02 i	590.8 ±2.82 e	4.63 ±0.04 e	196.8 ±0.35 b	17.24 ±0.07 a	4.12 ±0.02 f	16.75 ±0.49 c	6.63 ±0.09 j
	YQTS	13.91 ±0.03 a	15.12 ±0.47 bc	18 534 ±86.78 c	7.94 ±0.01 b	303.66 ±1.33 i	12.42 ±0.11 b	137.1 ±0.76 d	11.01 ±0.12 gh	4.78 ±0.04 c	16.37 ±0.75 cd	24.42 ±0.10 b
	MSTS	1.71 ±0.05 l	4.57 ±0.68 h	13 638 ±63.80 j	4.29 ±0.02 k	395.48 ±1.64 f	0.03 ±0.01 j	108.98 ±0.31 g	14.25 ±0.13 d	2.50 ±0.03 h	16.64 ±0.25 c	2.25 ±0.07 k
	XHTS	7.88 ±0.1 e	3.93 ±0.61 i	15 242 ±54.04 f	4.40 ±0.02 j	337.94 ±1.57 g	0.02 ±0.01 j	97.94 ±0.36 i	10.43 ±0.04 i	3.16 ±0.04 g	15.90 ±0.28 d	6.83 ±0.07 i
	YXTS	5.83 ±0.03 i	12.38 ±0.20 f	14 306 ±23.02 h	6.05 ±0.02 f	764.84 ±2.30 a	4.56 ±0.03 ef	100.17 ±0.37 h	13.90 ±0.04 e	4.61 ±0.08 d	15.75 ±0.33 e	7.05 ±0.15 h
	GTTS	13.11 ±0.03 c	13.35 ±0.50 e	19 806 ±84.44 a	7.31 ±0.03 d	303.3 ±2.69 i	10.59 ±0.13 c	116.82 ±0.52 f	9.24 ±0.23 k	4.96 ±0.08 b	18.81 ±0.44 a	23.80 ±0.18 c
	CLTS	6.53 ±0.06 h	14.99 ±0.48 bc	15 798 ±27.75 e	7.19 ±0.02 e	656.08 ±2.97 b	3.95 ±0.06 h	185.90 ±0.22 c	16.37 ±0.06 b	5.10 ±0.03 a	18.66 ±0.50 a	10.93 ±0.11 e
	MJTS	13.66 ±0.12 b	15.46 ±0.30 b	18 660 ±76.49 b	8.72 ±0.46 a	310.8 ±1.57 h	7.11 ±0.04 d	131.86 ±0.57 e	12.10 ±0.19 f	5.01 ±0.02 b	17.55 ±0.38 b	26.20 ±0.25 a
	HJTS	5.70 ±0.05 j	16.13 ±0.19 a	14 114 ±30.50 i	5.69 ±0.01 h	595.1 ±1.23 d	4.54 ±0.01 f	200.98 ±0.29 a	14.97 ±0.07 c	4.19 ±0.04 f	19.13 ±0.86 a	7.74 ±0.05 g
下层 Lower	SLTX	2.8 ±0.04 k	15.23 ±0.32 b	13 042 ±27.75 j	5.21 ±0.01 f	681.98 ±4.85 a	4.62 ±0.02 d	166.48 ±0.41 e	15.81 ±0.08 b	4.30 ±0.02 c	16.74 ±0.32 c	9.39 ±0.06 c
layers	FXTX	12.37 ±0.05 a	6.15 ±0.26 e	18 130 ±82.76 a	6.24 ±0.029 c	179.02 ±1.04 k	0.44 ±0.01 g	119.66 ±0.56 j	10.62 ±0.06 j	3.0 ±0.07 h	16.98 ±0.26 c	21.22 ±0.08 a
	XNTX	7.89 ±0.03 c	14.68 ±0.23 c	15 936 ±28.81 c	6.95 ±0.02 a	671.42 ±6.56 b	4.77 ±0.01 c	133.4 ±0.61 h	15.48 ±0.08 c	4.89 ±0.04 a	18.00 ±0.41 ab	7.22 ±0.04 h
	XMTX	4.31 ±0.07 h	14.91 ±0.16 bc	13 178 ±44.94 i	4.96 ±0.01 g	592.08 ±1.80 c	4.41 ±0.07 e	173.6 ±0.48 d	12.74 ±0.08 e	4.14 ±0.03 d	17.58 ±0.19 b	5.25 ±0.12 i
	YQTX	6.72 ±0.04 e	16.08 ±0.37 a	15 272 ±27.75 e	6.28 ±0.03 b	589.8 ±1.22 c	4.86 ±0.04 b	188.24 ±0.55 c	15.99 ±0.09 a	4.41 ±0.09 b	17.78 ±0.34 b	10.74 ±0.09 b
	MSTX	3.89 ±0.11 j	4.66 ±0.32 f	13 982 ±81.36 g	4.66 ±0.02 i	432.02 ±1.81 g	0.28 ±0.01 h	106.58 ±0.40 k	14.68 ±0.12 d	2.86 ±0.06 i	16.14 ±0.17 d	4.512 ±0.05 j
	XHTX	8.86 ±0.1 b	3.66 ±0.27 h	15 374 ±28.81 d	4.61 ±0.01 j	302 ±0.57 i	0.24 ±0.01 h	121.62 ±0.22 i	9.36 ±0.08 l	3.27 ±0.07 f	16.08 ±0.44 d	7.78 ±0.06 e
	YXTX	6.37 ±0.15 f	3.76 ±0.19 gh	14 844 ±36.47 f	4.55 ±0.03 k	369.4 ±1.44 h	0.04 ±0.01 i	199.56 ±0.25 b	12.03 ±0.06 g	3.19 ±0.36 g	16.56 ±0.38 cd	7.35 ±0.15 g
	GTTX	1.22 ±0.06 l	4.14 ±0.39 g	12 568 ±48.17 k	2.97 ±0.01 l	210.62 ±0.80 j	0.03 ±0.01 i	80.15 ±0.16 l	9.71 ±0.09 k	1.74 ±0.02 j	15.11 ±0.57 e	2.42 ±0.06 k
	CLTX	4.04 ±0.03 i	12.27 ±0.33 d	13 302 ±21.68 h	4.91 ±0.01 h	517.82 ±1.83 e	3.29 ±0.01 f	213.14 ±0.30 a	11.32 ±0.10 h	3.61 ±0.03 e	13.97 ±0.52 f	9.40 ±0.05 c
	MJTX	7.15 ±0.10 d	14.89 ±0.24 bc	16 032 ±59.33 b	5.88 ±0.02 d	500.16 ±2.58 f	5.2 ±0.82 a	145.86 ±1.11 g	11.20 ±0.06 i	4.32 ±0.09 c	16.93 ±0.62 c	8.72 ±0.03 d
	HJTX	6.04 ±0.06 g	14.91 ±0.38 bc	14 832 ±28.64 f	5.56 ±0.02 e	541.58 ±0.49 d	4.66 ±0.02 d	149.78 ±0.43 f	12.24 ±0.07 f	4.31 ±0.02 c	18.31 ±0.39 a	7.66 ±0.12 f

样品	Ce	Co	Fe	La	Mg	Mn	Na	Ni	Pr	Se	Zn
Sample
SLC	0.023 ±0.003 de	0.180 ±0.013 b	5.061 ±0.027 a	0.209 ±0.006 g	190.910 ±4.443 b	48.015 ±0.142 a	16.046 ±0.057 b	1.895 ±0.046 a	0.263 ±0.006 g	0.244 ±0.013 bc	4.622 ±0.026 a
FXC	0.015 ±0.003 f	0.211 ±0.007 a	4.083 ±0.032 b	0.260 ±0.004 ef	193.385 ±0.705 a	44.505 ±0.174 b	17.801 ±0.094 a	1.526 ±0.038 b	0.348 ±0.007 a	0.289 ±0.065 b	3.198 ±0.024 b
XNC	0.038 ±0.005 b	0.043 ±0.008 e	1.445 ±0.025 c	0.257 ±0.003 f	101.965 ±0.189 c	12.207 ±0.027 c	6.533 ±0.105 c	0.623 ±0.025 c	0.294 ±0.007 e	0.092 ±0.029 gh	1.439 ±0.010 c
XMC	0.013 ±0.002 f	0.065 ±0.006 cd	1.061 ±0.015 d	0.263 ±0.003 e	91.760 ±0.604 d	10.545 ±0.044 f	2.710 ±0.046 e	0.494 ±0.016 ef	0.279 ±0.004 f	0.114 ±0.007 fg	1.333 ±0.027 d
YQC	0.022 ±0.005 e	0.038 ±0.007 e	1.063 ±0.020 d	0.273 ±0.003 d	90.345 ±0.548 d	10.512 ±0.041 f	1.916 ±0.054 j	0.541 ±0.045 d	0.312 ±0.013 cd	0.059 ±0.008 h	0.934 ±0.023 i
MSC	0.013 ±0.004 f	0.039 ±0.008 e	0.782 ±0.009 f	0.277 ±0.004 bcd	90.365 ±0.792 d	10.986 ±0.055 e	3.919 ±0.067 d	0.455 ±0.029 gh	0.319 ±0.007 bc	0.116 ±0.021 fg	0.641 ±0.063 j
XHC	0.040 ±0.004 ab	0.024 ±0.005 f	0.820 ±0.025 e	0.278 ±0.001 bc	90.345 ±0.465 d	9.928 ±0.079 h	2.574 ±0.087 f	0.467 ±0.027 fgh	0.312 ±0.004 cd	0.208 ±0.026 cd	1.080 ±0.029 g
YXC	0.036 ±0.005 b	0.038 ±0.010 e	0.611 ±0.014 h	0.279 ±0.004 bc	78.140 ±0.274 f	12.215 ±0.067 c	2.392 ±0.078 h	0.487 ±0.012 efg	0.311 ±0.009 cd	0.130 ±0.021 fg	1.170 ±0.004 f
GTC	0.045 ±0.006 a	0.037 ±0.004 e	0.643 ±0.017 g	0.281 ±0.003 ab	90.275 ±0.439 d	10.289 ±0.047 g	2.211 ±0.034 i	0.441 ±0.017 hi	0.325 ±0.013 b	0.185 ±0.038 ed	1.281 ±0.023 e
CLC	0.029 ±0.006 c	0.060 ±0.005 d	0.094 ±0.011 k	0.284 ±0.001 a	81.875 ±0.312 e	9.120 ±0.030 i	1.542 ±0.058 k	0.414 ±0.021 i	0.341 ±0.009 a	0.365 ±0.097 a	1.031 ±0.018 h
MJC	0.028 ±0.003 cd	0.068 ±0.005 cd	0.280 ±0.012 j	0.275 ±0.004 cd	65.395 ±0.353 g	11.187 ±0.027 d	0.839 ±0.036 l	0.412 ±0.035 i	0.308 ±0.005 d	0.210 ±0.029 cd	1.016 ±0.008 h
HJC	0.038 ±0.003 b	0.071 ±0.009 c	0.462 ±0.025 i	0.281 ±0.001 ab	82.825 ±0.460 e	9.216 ±0.054 i	2.487 ±0.044 g	0.510 ±0.014 de	0.316 ±0.006 bcd	0.147 ±0.027 ef	1.070 ±0.019 g

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