|本期目录/Table of Contents|

[1]古勇波 陈方圆 白江珊 娄彦景** 唐占辉**.盐碱胁迫对三江藨草幼苗功能性状的影响*[J].应用与环境生物学报,2020,26(01):1-11.[doi:10.19675/j.cnki.1006-687x.2019.04028]
 GU Yongbo,CHEN Fangyuan,et al.Effects of salt-alkaline stress on functional traits of Scirpus nipponicus seedling *[J].Chinese Journal of Applied & Environmental Biology,2020,26(01):1-11.[doi:10.19675/j.cnki.1006-687x.2019.04028]
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盐碱胁迫对三江藨草幼苗功能性状的影响*()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
26卷
期数:
2020年01期
页码:
1-11
栏目:
研究论文
出版日期:
2020-01-25

文章信息/Info

Title:
Effects of salt-alkaline stress on functional traits of Scirpus nipponicus seedling *
作者:
古勇波12 陈方圆1 白江珊1 娄彦景1** 唐占辉2**
1中国科学院东北地理与农业生态研究所湿地生态与环境重点实验室/长白山湿地与生态吉林省联合重点实验室 长春 130102
2东北师范大学环境学院/国家环境保护湿地生态与植被恢复重点实验室 长春 130117
Author(s):
GU Yongbo1 2 CHEN Fangyuan1 BAI Jiangshan1 LOU Yanjing1** & TANG Zhanhui2**
1 Key Laboratory of Wetland Ecology and Environment/Jilin Provincial Joint Key Laboratory of Changbai Mountain Wetland and Ecology , Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
2 School of Environment, State Environmental Protection Key Laboratory for Wetland Ecology and Vegetation Restoration, Northeast Normal University, Changchun 130117, China
关键词:
湿生植物盐碱胁迫功能性状生物量分配
Keywords:
hygrophyte salt-alkaline stress functional traits biomass allocation
DOI:
10.19675/j.cnki.1006-687x.2019.04028
摘要:
盐碱作为盐碱湿地生态系统的重要环境因子之一,影响着湿地植物的定植、生长和繁殖。以莫莫格盐碱湿地常见植物三江藨草(Scirpus nipponicus)为研究对象,设置了盐度(25,100,200 mmol/L)和pH值(7.79 ± 0.06,9.42 ± 0.02,10.40 ± 0.01)各3个梯度处理,及1个空白处理作为对照,研究不同盐碱胁迫及其交互作用对湿地植物三江藨草幼苗功能性状和生物量分配格局的影响。结果显示,盐碱胁迫对三江藨草幼苗生长、生物量积累及其分配均产生显著影响(P < 0.05)。与空白处理相比,随着盐碱胁迫的升高,三江藨草幼苗株高、分株数、球茎数等功能性状,以及根、根茎、球茎、地下、地上生物量和总生物量等均呈现先增加后降低的趋势;三江藨草幼苗在盐度和pH分别为25 mmol/L和7.79(± 0.06)时生长最好,在盐度和pH分别为200 mmol/L和10.40(± 0.01)时,植株全部死亡;盐碱胁迫对三江藨草幼苗生物量分配具有显著影响(P < 0.05),随着盐碱胁迫增强,根和地上生物量分配增加,而球茎生物量分配减少,根茎生物量在25 mmol/L盐度处理下分配减少,在其他盐度处理下分配则增加。本研究表明碱胁迫对植物的伤害强于盐胁迫,湿地土壤的碱化对三江藨草的生长更为不利。
Abstract:
As one of the key environmental factors, salt-alkaline stress affects seedling establishment, growth and reproduction of hygrophyte in the salt-marsh ecology system. This paper aimed to understand the effects of salt-alkaline stress on growth traits and biomass allocation of Scirpus nipponicus seedling in Momoge National Nature Reserve . We conducted a common garden experiment with three levels of salinity (25, 100, and 200 mmol/L) and three levels of pH (7.79 ± 0.06, 9.42 ± 0.02, and 10.40 ± 0.01) treatments with one control treatment . The results are described as follows: salt-alkaline stress has a significant effect on the growth traits , biomass accumulation and biomass allocation of S. nipponicus seedling (P < 0.05). With salt-alkaline stress increasing, individual height, ramet number, tuber number, the biomass of root, rhizome, tuber, belowground, aboveground parts and total biomass all increased firstly and then decreased compared with control treatment . The optimum salinity concentration and pH is 25 mmol/L and 7.79 (± 0.06), respectively. The S. nipponicus seedling would not survive at the S3A3 (salinity and pH: 200 mmol/L and 10.40 (± 0.01), respectively) treatment. The effects of salt-alkaline stress on the root, rhizome, tuber biomass allocation and aboveground biomass allocation were all significant (P < 0.05). With salt-alkaline stress increasing, root and aboveground biomass allocation increased, tuber biomass allocation decreased. At 25 mmol/L salinity treatment, rhizome biomass allocation decreased, on the contrary, increased in other salinity treatments. Alkali stress is more severe than salt stress. The alkalization of soil is more detrimental to the growth of S. nipponicus.

相似文献/References:

[1]王志春,杨福,齐春艳.盐碱胁迫对水稻花粉扫描特征和生活力的影响[J].应用与环境生物学报,2010,16(01):63.[doi:10.3724/SP.J.1145.2010.00063]
 WANG Zhichun,YANG Fu,QI Chunyan.Effects of Salinity and Sodicity Stresses on Pollen Surface Characteristics and Viability of Rice[J].Chinese Journal of Applied & Environmental Biology,2010,16(01):63.[doi:10.3724/SP.J.1145.2010.00063]

备注/Memo

备注/Memo:
收稿日期 Received: 2019-04-14 接受日期 Accepted: 2019-05-15
*国家重点研发计划项目(2016YFC0500408-03)和国家自然科学基金项目(41671109,31470446)资助
**通讯作者 Corresponding authors (E-mail: louyj@iga.ac.cn; tangzh789@nenu.edu.cn)
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更新日期/Last Update: 2019-05-15