螯合剂及组配对伴矿景天修复两种镉污染土壤的影响

doi:10.16258/j.cnki.1674-5906.2022.12.016

生态环境学报 ›› 2022, Vol. 31 ›› Issue (12): 2414-2421.DOI: 10.16258/j.cnki.1674-5906.2022.12.016

螯合剂及组配对伴矿景天修复两种镉污染土壤的影响

伍德¹^,²^,³(), 彭鸥¹^,²^,³, 刘玉玲¹^,²^,³, 张朴心¹^,²^,³, 尹雪斐¹^,²^,³, 黄薪铭¹^,²^,³, 铁柏清¹^,²^,³^,^*()

1.湖南农业大学资源环境学院，湖南长沙 410128
2.湖南省灌溉水源水质污染净化工程技术研究中心，湖南长沙 410128
3.农业农村部南方产地污染防控重点实验室，湖南长沙 410128

收稿日期:2022-04-06 出版日期:2022-12-18 发布日期:2023-02-15
通讯作者: *铁柏清，男，教授，主要从事农田土壤重金属污染治理研究。E-mail: tiebq@qq.com
作者简介:伍德（1999年生），男，硕士研究生，主要研究方向为重金属污染治理与修复。E-mail: 3273718771@qq.com
基金资助:
国家自然科学基金项目(41907015);国家重点研发计划项目(2017YFD0801505)

Effects of Chelating Agents and Thier Combinations on Remediation of Two Cadmium Contaminated Soils by Sedum plumbizincicola

WU De¹^,²^,³(), PENG Ou¹^,²^,³, LIU Yuling¹^,²^,³, ZHANG Puxin¹^,²^,³, YIN Xuefei¹^,²^,³, HUANG Xinming¹^,²^,³, TIE Boqing¹^,²^,³^,^*()

1. College of Resources and Environment of Hunan Agricultural University, Changsha 410128, P. R. China
2. Hunan Engineering & Technology Research Center for Irrigation Water Purification 410128, P. R. China
3. Key Laboratory of Southern Farmland Pollution Prevention and Control, Ministry of Agriculture, Changsha 410128, P. R. China

Received:2022-04-06 Online:2022-12-18 Published:2023-02-15

摘要/Abstract

摘要：

为探究螯合剂及其组配对伴矿景天（Sedum plumbizincicola）修复酸性Cd污染土壤的效果，以乙二胺四乙酸二钠（EDTA）、草酸（OA）、酒石酸（TA）3种螯合剂为试验材料，以Cd单一污染和Cd/As复合污染酸性农田土壤为研究对象，设置3种螯合剂单一处理及其组配处理，对比了修复前后两种污染土壤的pH值、全量Cd、有效态Cd含量、Cd形态的变化以及修复效率。研究结果表明：施用螯合剂后两种污染类型的土壤pH明显下降，其中以EDTA-OA组配处理pH下降最大，相比于对照组分别下降了1.04和0.99个单位。对于土壤镉形态而言，两种酸性土壤中弱酸可溶态Cd的含量显著提高，EDTA-OA处理效果最明显，两种土壤中可溶态Cd的含量分别提高了22.99%和24.34%。对于伴矿景天镉积累而言，施用螯合剂促进了伴矿景天对Cd的吸收，两种类型土壤施用螯合剂后植株镉含量增加了25.80%—86.47%。对于修复效率而言，施用螯合剂后伴矿景天在两种土壤中修复效率分别为16.62%—22.82%、16.06%—24.98%；以EDTA-OA处理效果最显著，修复效率分别提高了9.06%和12.14%。综合而言，在两种类型镉污染土壤中采用乙二胺四乙酸二钠和草酸1?1组配施用修复效果最好。

关键词: 螯合剂, 伴矿景天, 植物修复, 酸性土壤, Cd污染, 复合污染

Abstract:

The effects of three chelating agents (EDTA, OA, and TA) and their combinations on remediation of Cd and Cd/As contaminated soil by Sedum plumbizincicola were investigated. The pH, total Cd concentration, available Cd concentration and Cd form before and after remediation were compared to evaluate the remediation performance of the chelating agents-Sedum plumbizincicola combined treatment on two Cd contaminated soils. The results showed that the pH of the two Cd contaminated soils decreased significantly after the application of chelating agents. Among the different treatments, EDTA-OA treatment resulted in the highest pH decreases (from 1.04 to 0.99), compared to that of control group. In terms of soil Cd forms, the contents of soluble Cd in the two Cd contaminated soils were significantly increased, and the maximum increase in soluble Cd content was observed in EDTA-OA treatment, (by 22.99% and 24.34%, respectively). In terms of Cd accumulation, the application of chelating agents promoted the Cd uptake by Sedum plumbizincicola with 25.80%-86.47% increases of Cd contents in plants. The chelating agents-Sedum plumbizincicola combined treatment achieved 16.62%-2.82% and 16.06%-24.98% remediation efficiencies for the two Cd contaminated soils, respectively. Among them, EDTA-OA treatment (1?1) was the most effective in enhancing performance Sedum plumbizincicola for remediation of the two Cd contaminated soils, and the remediation efficiency was increased by 9.06% and 12.14%, respectively.

Key words: chelating agent, Sedum plumbizincicola, phytoremediation, acid soil, cadmium contamination, combined pollution

中图分类号:

伍德, 彭鸥, 刘玉玲, 张朴心, 尹雪斐, 黄薪铭, 铁柏清. 螯合剂及组配对伴矿景天修复两种镉污染土壤的影响[J]. 生态环境学报, 2022, 31(12): 2414-2421.

WU De, PENG Ou, LIU Yuling, ZHANG Puxin, YIN Xuefei, HUANG Xinming, TIE Boqing. Effects of Chelating Agents and Thier Combinations on Remediation of Two Cadmium Contaminated Soils by Sedum plumbizincicola[J]. Ecology and Environment, 2022, 31(12): 2414-2421.

图/表 11

参考文献 36

[1]	CHEN Y H, LI X D, LIU H Y, et al., 2002. The potential of India mustard for phytoremediation of Pb-contaminated soils with the aid of EDTA addition[J]. Journal of Nanjing Agricultural University, 25(4): 15-18.
[2]	GAO Y, MIAO C Y, MAO L, et al., 2010. Improvement of phytoextraction and antioxidative defense in Solanum nigrum L. under cadmium stress by application of cadmium-resistant strain and citric acid[J]. Journal of Hazardous Materials, 181(1-3): 771-777. DOI PMID
[3]	GRČMAN H, VELIKONJA-BOLTA Š, VODNIK D, et al., 2001. EDTA enhanced heavy metal phytoextraction: Metal accumulation, leaching and toxicity[J]. Plant and Soil, 235(1): 105-114. DOI URL
[4]	JUN K G, XIN L, HONG L J, et al., 2020. Effects of EDTA and plant growth-promoting rhizobacteria on plant growth and heavy metal uptake of hyperaccumulator Sedum alfredii Hance[J]. Journal of Environmental Sciences, 88(2): 361-369. DOI URL
[5]	MCGRATH S P, ZHAO F J, LOMBI E, 2001. Plant and rhizosphere processes involved in phytoremediation of metal-contaminated soils[J]. Plant and Soil, 232(1): 207-214. DOI URL
[6]	RASCIO N, NAVARI-IZZO F, 2011. Heavy metal hyperaccumulating plants: how and why do they do it? And what makes them so interesting?[J]. Plant Science, 180(2): 169-181. DOI PMID
[7]	RAURET G, LÓPEZ S J F, SAHUQUILLO A, et al., 1999. Improvement of the BCR three step sequential extraction procedure prior to the certification of new sediment and soil reference materials[J]. Journal of Environmental Monitoring, 1(1): 57-61. PMID
[8]	SILLANPÄÄ M E T, KURNIAWAN T A, LO W, 2011. Degradation of chelating agents in aqueous solution using advanced oxidation process (AOP)[J]. Chemosphere, 83(11): 1443-1460. DOI PMID
[9]	VASSIL A D, KAPULNIK Y, RASKIN I, et al., 1998. The role of EDTA in lead transport and accumulation by Indian mustard[J]. Plant Physiology, 117(2): 447-453. DOI URL
[10]	ZHU X D, YANG F, WEI C Y, 2015. Factors influencing the heavy metal bioaccessibility in soils were site dependent from different geographical locations[J]. Environmental Science and Pollution Research, 22(18): 13939-13949. DOI URL
[11]	曹雪莹, 谭长银, 谢雨呈, 等, 2019. 土壤pH和Cd全量对伴矿景天修复效率的影响[J]. 环境科学研究, 32(9): 1604-1612.
	CAO X Y, TAN C Y, XIE Y C, et al., 2019. Effect of soil pH and total Cadmium concentration of soil on the remediation efficiency of Sedum plumbizincicola[J]. Research of Environmental Sciences, 32(9): 1604-1612.
[12]	陈雅慧, 杨轶雄, 李宁锋, 等, 2021. 复合螯合剂对铺地竹铅富集及土壤环境的影响[J]. 环境科学与技术, 44(4): 140-148.
	CHEN Y H, YANG Y X, LI N F, et al., 2021. Effect of compound chelating agent on the accumulation of Pb in Sasa argenteostriata E. G. Camus and soil environment[J]. Environmental Science & Technology, 44(4): 140-148.
[13]	丁雪莲, 2012. 乙二胺四乙酸辅助藜及小蓬草修复铅、镉、锰及其复合污染土壤的研究[D]. 新乡: 河南师范大学.
	DING X L, 2012. EDTA assisted phytoremediation of Chenopodium albaum and Chenopodium serotinuml for Pb, Cd, Mn and the combined contaminated soil[D]. Xinxiang: Henan Normal University.
[14]	丁竹红, 胡忻, 尹大强, 等, 2009. 螯合剂在重金属污染土壤修复中应用研究进展[J]. 生态环境学报, 18(2): 777-782.
	DING Z H, HU X, YIN D Q, et al., 2009. Application of chelants in remediation of heavy metals-contaminated soil[J]. Ecology and Environmental Sciences, 18(2): 777-782.
[15]	冯丹妮, 杨虎德, 马彦, 等, 2019. 土壤重金属复合污染的生态效应研究综述[J]. 甘肃农业科技 (9): 73-77.
	FENG D N, YANG H D, MA Y, et al., 2019. Ecological effects of heavy metal contaminated pollution research[J]. Gansu Agricultural Science and Technology (9): 73-77.
[16]	方晓航, 仇荣亮, 曾晓雯, 等, 2005. EDTA、小分子有机酸对蛇纹岩发育土壤Ni、Co活性的影响[J]. 中山大学学报 (自然科学版), 44(4): 111-114, 128.
	FANG X H, QIU R L, ZENG X W, et al., 2005. Effect of EDTA and LMWOA on availability of Nickel and Cobalt in serpentine soil[J]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 44(4): 111-114, 128.
[17]	葛芳芳, 王学锋, 付卫静, 等, 2017. 我国农耕土壤Cd污染与植物修复现状[J]. 环境保护科学, 43(5): 105-110.
	GE F F, WANG X F, FU W J, et al., 2017. A review of cadmium polluted agricultural soils and phytoremediation in China[J]. Environmental Protection Science, 43(5): 105-110.
[18]	郭勇, 童艳君, 2012. 我国农业土壤重金属污染现状及防治对策[J]. 现代农业科技 (18): 220-221.
	GUO Y, TONG Y J, 2012. The status and protection strategy of farmland soils polluted by heavy metals[J]. Modern Agricultural Sciences and Technology (18): 220-221.
[19]	韩少华, 唐浩, 黄沈发, 等, 2011. 重金属污染土壤螯合诱导植物修复研究进展[J]. 环境科学与技术, 34(S1): 157-163.
	HAN S H, TANG H, HUANG S F, et al., 2011. Review of chelate-induced phytoremediation in heavy metal contaminated soil[J]. Environmental Science & Technology, 34(S1): 157-163.
[20]	何其辉, 谭长银, 曹雪莹, 等, 2018. 肥料对土壤重金属有效态及水稻幼苗重金属积累的影响[J]. 环境科学研究, 31(5): 942-951.
	HE Q H, TAN C Y, CAO X Y, et al., Effects of fertilizer on the availability of heavy metals in soil and its accumulation in rice seedling[J]. Research of Environmental Science, 31(5): 942-951.
[21]	环境保护部, 国土资源, 2014. 全国土壤污染状况调查公报[J]. 中国环保产业 (5): 10-11.
	The Ministry of Environmental Protection, The Ministry of Land and Resources, 2014. Report on the national soil contamination survey[J]. China Environmental Protection Industry (5): 10-11.
[22]	黄铮, 徐力刚, 徐南军, 等, 2007. 土壤作物系统中重金属污染的植物修复技术研究现状与前景[J]. 农业环境科学学报, 26(B03): 58-62.
	HUANG Z, XU L G, XU N J, et al., 2007. Current status and expectation of phytoremediation of heavy metals in Soi-Crop system[J]. Journal of Agro-Environment Science, 26(B03): 58-62.
[23]	蒋萍萍, 俞果, 姚诗音, 等, 2019. 不同螯合剂强化青葙修复土壤镉污染的效应[J]. 南方农业学报, 50(11): 2443-2449.
	JIANG P P, YU G, YAO S Y, et al., 2019. Remediation effects on cadmium contaminated soil by different chelating agents enhanced Celosia argentea Linn[J]. Journal of Southern Agriculture, 50(11): 2443-2449.
[24]	刘亮, 2012. EDTA对矿区废弃地栾树生长及其重金属积累特征的影响[D]. 长沙: 中南林业科技大学.
	LIU L, 2012. The effect of EDTA on the mining area soil Koelreuteria paniculata growth and heavy metal accumulation characteristics[D]. Changsha: Central South University of Forestry and Technology.
[25]	李晓宝, 董焕焕, 任丽霞, 等, 2019. 螯合剂修复重金属污染土壤联合技术研究进展[J]. 环境科学研究, 32(12): 1993-2000.
	LI X B, DONG H H, REN L X, et al., 2019. Effects of chelating agent combination technologies on soil contaminated by heavy metals[J]. Research of Environmental Sciences, 32(12): 1993-2000.
[26]	刘兴瑞, 刁静茹, 张淋淋, 等, 2022. 化学强化植物修复复合污染土壤研究进展[J]. 环境化学, 41(4): 1335-1347.
	LIU X R, DIAO J R, ZHANG L L, et al., 2022. Research progress on chemically enhanced phytoremediation of co-contaminated soil[J]. Environmental Chemistry, 41(4): 1335-1347.
[27]	罗昱, 2021. 螯合剂及有机酸强化凤尾鸡冠花修复Pb、Cd污染土壤研究[D]. 昆明: 昆明理工大学.
	LUO Y, 2021. Study on remediation of Pb and Cd contaminated soil by chelating agents and organic acids[D]. Kunming: Kunming University of Science and Technology.
[28]	龙珍, 徐海涛, 张亚平, 等, 2016. 活化剂联合植物移除污染土壤重金属的研究进展[J]. 环境工程, 34(10): 172-176, 152.
	LONG Z, XU H T, ZHANG Y P, et al., 2016. Removal of heavy metals from contaminated soil by activating agents combined with plants[J]. Environmental Engineering, 34(10): 172-176, 152.
[29]	马俊俊, 吴炯, 祖艳群, 等, 2020. 不同螯合剂对香石竹 (Dianthus caryophyllus) 修复镉污染土壤的影响[J]. 江西农业学报, 32(7): 57-64.
	MA J J, WU J, ZU Y Q, et al., 2020. Effects of chelating agents on remediation of Cadmium-contaminated soil by Dianthus caryophyllus[J]. Acta Agriculturae Jiangxi, 32(7): 57-64.
[30]	孙约兵, 周启星, 任丽萍, 2007. 镉超富集植物球果蔊菜对镉-砷复合污染的反应及其吸收积累特征[J]. 环境科学, 28(6): 1355-1360.
	SUN Y B, ZHOU Q X, REN L P, 2007. Growth responses of rorippa globosa and its accumulation characteristics of Cd and As under the Cd-As Combined pollution[J]. Environmental Science, 28(6): 1355-1360.
[31]	卫泽斌, 陈晓红, 吴启堂, 等, 2015. 可生物降解螯合剂GLDA诱导东南景天修复重金属污染土壤的研究[J]. 环境科学, 36(5): 1864-1869.
	WEI Z B, CHEN X H, WU Q T, et al., 2015. Enhanced phytoextraction of heavy metals from contaminated soils using Sedum alfredii Hance with biodegradable chelate GLDA[J]. Environmental Science, 36(5): 1864-1869.
[32]	熊梓烨, 廉晶晶, 皮文, 等, 2020. 镉污染土壤植物修复技术研究进展[J]. 绿色科技 (24): 92-94.
	XIONG Z Y, LIAN J J, PI W, et al., 2020. Advances in phytoremediation of cadmium contaminated soil[J]. Journal of Green Science and Technology (24): 92-94.
[33]	张根柱, 张社奇, 邵丽, 等, 2011. 外源柠檬酸对黄土高原塿土土壤养分的影响[J]. 西北林学院学报, 26(2): 47-51.
	ZHANG G Z, ZHANG S Q, SHAO L, et al., 2011. Effects of exogenous citric on nutrients of old manured loessal soil[J]. Journal of Northwest Forestry University, 26(2): 47-51.
[34]	朱凰榕, 周良华, 阳峰, 等, 2019. 两种景天修复Cd/Zn污染土壤效果的比较[J]. 生态环境学报, 28(2): 403-410.
	ZHU H R, ZHOU L H, YANG F, et al., 2019. Phytoremediation effects and contrast of Sedum alfredii and Sedum plumbizincicola on Cd/Zn contaminated soil[J]. Ecology and Environmental Sciences, 28(2): 403-410.
[35]	张继舟, 王宏韬, 袁磊, 等, 2013. 重金属污染土壤的植物修复技术研究[J]. 中国农学通报, 29(14): 134-139.
	ZHANG J Z, WANG H T, YUAN L, et al., 2013. Research on phytoremediation of soil contaminated by heavy metals[J]. Chinese Agricultural Science Bulletin, 29(14): 134-139.
[36]	张譞, 李晔, 胡进, 等, 2013. 三种螯合剂对土壤重金属Cd和Zn形态变化的研究[J]. 科学技术与工程, 13(21): 6184-6188.
	ZHANG X, LI Y, HU J, et al., 2013. Effects of three chelate on the form distribution of Cd and Zn in soil[J]. Science Technology and Engineering, 13(21): 6184-6188.

试验地点 Experimental location	镉质量分数 w_(Cd)/ (mg∙kg⁻¹)	有效态镉质量分数 w_{(available Cd)}/ (mg∙kg⁻¹)	砷质量分数w_(As)/ (mg∙kg⁻¹)	有效态砷质量分数 w_{(available As)}/ (mg∙kg⁻¹)	阳离子交换量 Cation exchange capacity/(cmol∙kg⁻¹)	pH	有机质质量分数 w_{(soil organic matter)}/ （g∙kg⁻¹）	污染类型 Pollution type
渌口区 Lukou district	0.93	0.27	7.80	0.04	11.60	5.75	51.40	单一镉污染 Cd contaminated soil
浏阳市 Liuyang city	0.78	0.50	47.90	0.96	7.10	5.88	32.80	镉砷复合污染 Cd-As contaminated soil

试验地点 Experimental location	镉质量分数 w_(Cd)/ (mg∙kg⁻¹)	有效态镉质量分数 w_{(available Cd)}/ (mg∙kg⁻¹)	砷质量分数w_(As)/ (mg∙kg⁻¹)	有效态砷质量分数 w_{(available As)}/ (mg∙kg⁻¹)	阳离子交换量 Cation exchange capacity/(cmol∙kg⁻¹)	pH	有机质质量分数 w_{(soil organic matter)}/ （g∙kg⁻¹）	污染类型 Pollution type
渌口区 Lukou district	0.93	0.27	7.80	0.04	11.60	5.75	51.40	单一镉污染 Cd contaminated soil
浏阳市 Liuyang city	0.78	0.50	47.90	0.96	7.10	5.88	32.80	镉砷复合污染 Cd-As contaminated soil

处理编号 Test label	施用的螯合剂种类 Type of chelating agent	施用质量摩尔浓度 b/(mmol∙kg⁻¹)	施用方法 Application method
CK	—	—	—
EDTA	EDTA	2	单一施用
OA	OA	2	单一施用
TA	TA	2	单一施用
EDTA-OA	EDTA, OA	2	1꞉1组配施用
EDTA-TA	EDTA, TA	2	1꞉1组配施用
TA-OA	OA, TA	2	1꞉1组配施用

处理编号 Test label	施用的螯合剂种类 Type of chelating agent	施用质量摩尔浓度 b/(mmol∙kg⁻¹)	施用方法 Application method
CK	—	—	—
EDTA	EDTA	2	单一施用
OA	OA	2	单一施用
TA	TA	2	单一施用
EDTA-OA	EDTA, OA	2	1꞉1组配施用
EDTA-TA	EDTA, TA	2	1꞉1组配施用
TA-OA	OA, TA	2	1꞉1组配施用

处理编号 Test label	修复后土壤全量Cd 质量分数 w_{( Cd in the restored soi)}/(mg∙kg⁻¹)	修复后土壤有效态Cd 质量分数 w_{(available Cd in the restored soi)}/(mg∙kg⁻¹)
CK	0.77±0.02a	0.16±0.03a
EDTA	0.70±0.01bc	0.19±0.08a
OA	0.71±0.02b	0.22±0.07a
TA	0.71±0.03bc	0.23±0.01a
EDTA-OA	0.69±0.03bc	0.16±0.03a
EDTA-TA	0.66±0.03c	0.18±0.02a
TA-OA	0.68±0.03bc	0.19±0.05a

螯合剂及组配对伴矿景天修复两种镉污染土壤的影响

Effects of Chelating Agents and Thier Combinations on Remediation of Two Cadmium Contaminated Soils by Sedum plumbizincicola

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处理编号 Test label	修复后土壤全量Cd 质量分数 w_{(Cd in the restored soi)}/(mg∙kg⁻¹)	修复后土壤有效态Cd 质量分数 w_{(available Cd in the restored soi)}/(mg∙kg⁻¹)
CK	0.69±0.08a	0.46±0.06a
EDTA	0.65±0.08ab	0.49±0.03a
OA	0.63±0.02b	0.52±0.06a
TA	0.70±0.04a	0.51±0.04a
EDTA-OA	0.59±0.08c	0.47±0.03a
EDTA-TA	0.64±0.01ab	0.49±0.04a
TA-OA	0.61±0.04bc	0.51±0.06a

处理编号 Test label	修复前土壤Cd质量分数 w_{(Cd in unrestored soi)}/ (mg∙kg⁻¹)	植株地上部分Cd质量分数 w_{(Cd in plant aerial portion)}/ (mg∙kg⁻¹）	植株地上部分烘干质量 m_{(plant aerial portion)}/ (kg∙hm⁻²)	Cd提取量 Cd extraction quantity/ （mg∙hm⁻²）	修复效率 Remediation efficiency/ %
CK	0.87±0.05	58.53±2.24f	4.60×10³	2.69×10⁵	13.76
EDTA	0.92±0.07	91.59±3.31c	4.70×10³	4.30×10⁵	20.79
OA	0.90±0.11	79.30±2.77d	4.59×10³	3.64×10⁵	17.97
TA	0.91±0.05	73.63±3.02e	4.62×10³	3.40×10⁵	16.62
EDTA-OA	0.93±0.09	103.88±3.74a	4.60×10³	4.77×10⁵	22.82
EDTA-TA	0.90±0.08	95.04±2.68b	4.68×10³	4.45×10⁵	21.96
TA-OA	0.92±0.10	92.95±2.37c	4.61×10³	4.29×10⁵	20.71

处理编号 Test label	修复前土壤Cd质量分数 w_{(Cd in unrestored soi)}/ (mg∙kg⁻¹)	植株地上部分Cd质量分数 w_{(Cd in plant aerial portion)}/ (mg∙kg⁻¹）	植株地上部分烘干质量 m_{(plant aerial portion)}/ (kg∙hm⁻²)	Cd提取量 Cd extraction quantity/ （mg∙hm⁻²）	修复效率 Remediation efficiency/ %
CK	0.79±0.04	48.34±2.09f	4.70×10³	2.27×10⁵	12.79
EDTA	0.82±0.08	80.98±3.55c	4.80×10³	3.89×10⁵	21.06
OA	0.80±0.07	77.07±3.14d	4.69×10³	3.61×10⁵	20.09
TA	0.83±0.08	64.18±2.87e	4.70×10³	3.02×10⁵	16.06
EDTA-OA	0.76±0.05	90.14±3.26a	4.75×10³	4.28×10⁵	24.98
EDTA-TA	0.81±0.06	81.77±2.73c	4.73×10³	3.87×10⁵	21.14
TA-OA	0.78±0.05	84.46±3.04b	4.71×10³	3.98×10⁵	22.62

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