氮添加对美洲黑杨镉吸收、富集与分配的影响

doi:10.16036/j.issn.1000-2650.2021.05.002

四川农业大学学报 ›› 2021, Vol. 39 ›› Issue (5): 575-581.doi: 10.16036/j.issn.1000-2650.2021.05.002

氮添加对美洲黑杨镉吸收、富集与分配的影响

雷浩, 高陈晨, 陈良华^*, 陈娜, 郝林婷, 柳奇, 舒锟, 杨林凯

长江上游林业生态工程四川省重点实验室/长江上游森林资源保育与生态安全国家林业和草原局重点实验室/华西雨屏区人工林生态系统研究长期科研基地/四川农业大学生态林业研究所,成都 611130

收稿日期:2021-06-11 出版日期:2021-10-30 发布日期:2021-11-01
通讯作者: ^*陈良华,副教授,主要从事植物生理研究,E-mail：sicauchenlh@126.com。
作者简介:雷浩,本科生。
基金资助:
四川省科技计划资助（2021YFYZ0032, 2019YJ0416）; 国家级大学生创新创业训练计划资助项目（201910626050）

Effects of Nitrogen Application on Cadmium Absorption, Enrichment and Distribution in Populus deltoides

LEI Hao, GAO Chenchen, Chen Lianghua^*, CHEN Na, HAO Linting, LIU Qi, SHU Kun, YANG Linkai

Forestry Ecological Engineering in the Upper Reaches of the Yangtze River Key Laboratory of Sichuan Province & National Forestry and Grassland Administration Key Laboratory of Forest Resources Conservation and Ecological Safety on the Upper Reaches of the Yangtze River & Rainy Area of West China Plantation Ecosystem Permanent Scientific Research Base, Institute of Ecology & Forestry,Sichuan Agricultural University,Chengdu 611130,China

Received:2021-06-11 Online:2021-10-30 Published:2021-11-01

摘要/Abstract

摘要： 【目的】研究氮添加条件下美洲黑杨不同器官Cd富集和分配的变化,探讨氮沉降对美洲黑杨重金属富集、转移、分配的影响。【方法】以美洲黑杨（Populus deltoides）为对象,采用盆栽控制实验的方法,研究不同Cd污染处理（0、2.5和5 mg/kg）下,不同氮添加水平（0、5、10和15 g/（m²·a））对美洲黑杨各器官中Cd含量、积累量及分配模式的影响。【结果】镉污染条件下,氮添加对美洲黑杨多数器官的镉富集具有促进作用,这种促进效应因污染程度的不同有一定的差异;氮添加会增加美洲黑杨镉的富集系数,并降低镉向地上部分的转移;不同Cd污染条件下,美洲黑杨根系中镉含量随根序的增加而降低,适度添加氮（如10 g/（m²·a））能促进镉在低级根中的富集。【结论】在不同重金属污染条件下,适度的外源氮添加有利于促进美洲黑杨的生长,提高美洲黑杨的镉富集效率,有利于提高其对重金属污染土壤的修复能力。

关键词: 镉污染, 氮沉降, 美洲黑杨, 生物富集

Abstract: 【Objective】 To study the changes of Cadmium (Cd) enrichment and distribution in different organs of P. deltoides under nitrogen addition, and to explore the effects of nitrogen deposition on the enrichment, transfer and distribution of heavy metals in P. deltoides. 【Method】 Taking P. deltoides as material, a pot control experiment was conducted to study the effects of different nitrogen levels (0, 5, 10 and 15 g/(m²·a)) on Cd concentration, accumulation and distribution. pattern in different organs of P. deltoides under different Cd pollution treatments (0.12, 2.5 and 5 mg/kg). 【Result】 Under Cd pollution,nitrogen addition can promote Cd enrichment in most organs of P. deltoides, and this promotion effect depended on Cd pollution degree; nitrogen addition can increase the bio-concentration factors of Cd in P. deltoides and reduce the transfer rate of Cd to aerial parts; under different Cd pollution conditions, Cd content in roots of P. deltoides decreased with the increase of root order, and moderate addition of nitrogen (such as 10 g/(m²·a)) promoted the enrichment of Cd in low-grade roots. 【Conclusion】 Under different heavy metal pollution conditions, moderate addition of exogenous nitrogen is beneficial to promote the growth of P. deltoides, improve Cd enrichment efficiency of P. deltoides and improve its remediation ability to heavy metal contaminated soil.

Key words: Cd pollution, N deposition, Populus deltoides, bio-accumulation

中图分类号:

S718.43

雷浩, 高陈晨, 陈良华, 陈娜, 郝林婷, 柳奇, 舒锟, 杨林凯. 氮添加对美洲黑杨镉吸收、富集与分配的影响[J]. 四川农业大学学报, 2021, 39(5): 575-581.

LEI Hao, GAO Chenchen, Chen Lianghua, CHEN Na, HAO Linting, LIU Qi, SHU Kun, YANG Linkai. Effects of Nitrogen Application on Cadmium Absorption, Enrichment and Distribution in Populus deltoides[J]. Journal of Sichuan Agricultural University, 2021, 39(5): 575-581.

参考文献 28

[1]	NAGAJYOTI P C, LEE K D, SREEKANTH T V M. Heavy metals, occurrence and toxicity for plants: a review[J]. Environmental Chemistry Letters, 2010, 8(3): 199-216.
[2]	ANDRES S, ANDREA P.Plant responses to abiotic stresses: heavy metal-induced oxidative stress and protection by mycorrhization[J]. Journal of Experimental Botany, 2002(372): 1351-1365.
[3]	杨俊杰, 何定国, 何定荣, 等. 施用金无踪对污染地上油麦菜重金属含量的影响[J]. 中国农技推广, 2013, 29(12):44-45.
[4]	GALLOWAY J N, TOWNSEND A R, ERISMAN J W, et al.Transformation of the nitrogen cycle: recent trends, questions, and potential solutions[J]. Science, 2008, 320(5878): 889-892.
[5]	TUSKAN G, DIFAZIO S, JANSSON S, et al.The genome of black cottonwood, Populus trichocarpa(Torr. & Gray)[J]. Science, 2006, 313(5793): 1596-1604.
[6]	PAOLIS M, PIETROSANTI L, CAPOTORTI G, et al.Salicaceae establishment in a heavy metal-contaminated site revealed by eco-physiological characterization of the culturable soil bacterial fraction[J]. Water Air and Soil Pollution, 2011, 216(1/4):505-512.
[7]	GU J, QI L, JIANG W, et al.Cadmium accumulation and its effects on growth and gas exchange in four Populus cultivars[J]. Acta Biologica Cracoviensia. Series botanica, 2007, 49(2): 7-14.
[8]	ZACCHINI M, PIETRINI F, MUGNOZZA G S, et al.Metal tolerance, accumulation and translocation in poplar and willow clones treated with cadmium in hydroponics[J]. Water Air and Soil Pollu-tion, 2009, 197(1/4): 23-34.
[9]	万雪琴, 张帆, 夏新莉, 等. 镉胁迫对杨树矿质营养吸收和分配的影响[J]. 林业科学, 2009, 45(7): 45-51.
[10]	CASTIGLIONE S, TODESCHINI V, FRANCHIN C, et al.Clonal differences in survival capacity, copper and zinc accumulation, and correlation with leaf polyamine levels in poplar: A large-scale field trial on heavily polluted soil[J]. Environmental Pollution, 2009, 157(7): 2108-2117.
[11]	PREGITZER K S, DEFOREST J L, BURTON A J, et al.Fine root architecture of nine North American trees[J]. Ecological Mono-graphs, 2002, 72(2): 293-309.
[12]	陈良华. 滇杨(Populus yunnanensis)雌雄植株对环境胁迫的生理生态响应差异[D]. 北京: 中国科学院研究生院, 2011.
[13]	HAO L, CHEN L, ZHU P, et al.Sex-specific responses of popu lus deltoides to interaction of cadmium and salinity in root systems[J]. Ecotoxicology and Environmental Safety, 2020, 195: 110437.
[14]	万雪琴, 张帆, 夏新莉, 等. 镉处理对杨树光合作用及叶绿素荧光参数的影响[J]. 林业科学, 2008, 44(6): 73-78.
[15]	WU F, YANG W, ZHANG J, et al.Cadmium accumulation and growth responses of a poplar (Populus deltoids×Populus nigra) in cadmium contaminated purple soil and alluvial soil[J]. Journal of Hazardous Materials, 2010, 177(1/3): 268-273.
[16]	STROIA C, JOUANY M C.Nitrogen fertilization effects on grassland soil acidification: consequences on diffusive phosphorus ions[J]. Soil Science Society of America Journal, 2011, 75(1): 112-120.
[17]	ZIA A, BERG L, RIAZ M, et al.Nitrogen induced DOC and heavy metals leaching: effects of nitrogen forms, deposition loads and liming[J]. Environmental Pollution, 2020, 265(Pt B): 114981.
[18]	蒋婷, 姜贝贝, 潘远智, 等. 不同形态氮素对龙葵镉毒害的缓解效应[J]. 农业环境科学学报, 2015, 34(6): 1060-1068.
[19]	董姬妃, 张帆, 胡雨寒, 等. 镉胁迫下增施氮对白三叶草生长的影响和镉毒害的缓解效应研究[J]. 草业学报, 2017, 26(9): 83-91.
[20]	谭长强, 何琴飞, 秦玉燕, 等. 施氮对镉胁迫下杂交相思树生长及镉吸收分配的影响[J]. 植物营养与肥料学报, 2017,23(5): 1326-1334.
[21]	JACKSON R B, MOONEY H A, SCHULZE E D.A global budget for fine root biomass, surface area, and nutrientcontents[J]. Proceedings of the National Academy of Sciences of the United States of America, 1997, 94(14): 7362-7366.
[22]	RUESS R W, HENDRICK R L, BURTON A J, et al.Coupling fine root dynamics with ecosystem carbon cycling in black spruce forests of interior Alaska[J]. Ecological Monographs, 2003, 73(4): 643-662.
[23]	KHAN N A, SINGH S, NAZAR R.Activities of antioxidative enzymes, sulphur assimilation, photosynthetic activity and growth of wheat (Triticum aestivum) cultivars differing in yield potential un-der cadmium stress[J]. Journal of Agronomy and Crop Science, 2007, 193(6): 435-444.
[24]	冯世静, 杨途熙, 张艳军, 等. 镉胁迫对杨树光合特性的影响[J]. 农业环境科学学报, 2013, 32(3): 539-547.
[25]	GUO Y Y, WANG, et al. Fine root branch orders contribute differentially to uptake, allocation, and return of potentially toxic metals[J]. Environmental Science & Technology, 2013, 47(20):11465-11472.
[26]	XU Z, CHEN L, TANG S, et al.Sex-specific responses to Pb stress in populus deltoides: root architecture and Pb translocation[J]. Trees, 2016, 30(6): 2019-2027.
[27]	SHARMA S S, DIETZ K J.The significance of amino acids and amino acid-derived molecules in plant responses and adaptation to heavy metal stress[J]. Journal of Experimental Botany, 2006, 57(4): 711-726.
[28]	GUO D, XIA M, XING W, et al.Anatomical traits associated with absorption and mycorrhizal colonization are linked to root branch order in twenty-three Chinese temperate tree species[J]. New Phytologist, 2008, 180(3): 673-683.

氮添加对美洲黑杨镉吸收、富集与分配的影响

Effects of Nitrogen Application on Cadmium Absorption, Enrichment and Distribution in Populus deltoides

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