Guan, Bo1
; Gao, Nan1,2; Chen, Min3; Cagle, Grace A.4; Hou, Aixin4; Han, Guangxuan1; Tian, Xiaoyan2发表期刊AQUATIC SCIENCES
ISSN1015-1621
2021-07-01
卷号83期号:3页码:11
关键词Phragmites australisHeterogeneityBiomassSaline wetlandTotal nitrogen
DOI10.1007/s00027-021-00811-w
通讯作者Guan, Bo(bguan@yic.ac.cn); Han, Guangxuan(gxhan@yic.ac.cn)
英文摘要Coastal wetlands are highly heterogeneous due to their location between land and ocean. Clonal plants living in coastal wetlands can adapt to nutrient and salinity heterogeneity through clonal integration. However, little is known about how the single clonal ramet with fine roots adapts to nutrient heterogeneity within the microhabitat. Pot control experiments with 12 treatments were conducted to evaluate adaptive characteristics of Phragmites australis seedling to nutrient heterogeneity under salt stress. The results showed that under homogeneous nutrient treatment, 1.5% salt significantly reduced plant height and tiller number in P. australis and depressed the effect of nutrients on the leaf length, width and internode length. The homogeneous nutrient gradients had no significant effect on the aboveground biomass of P. australis in 1.5% salt condition. However, under 1.5% salt treatment, heterogeneous nutrient significantly reduced the underground biomass, including rhizome and adventitious root biomass. The root-shoot ratio was higher under homogeneous nutrient treatment than heterogeneous treatment with the same total nutrient amount applied. However, the accumulation of total nitrogen and total phosphorous in the stems and leaves of P. australis did not show significant differences, except that without salt stress, heterogeneous treatment decreased the total nitrogen content of stems and leaves at low nutrient levels. The results demonstrated a preference for homogeneous nutrient conditions in saline micro-environments in P. australis; however, when encountering heterogeneous soil nutrient environments, plants can maintain their nutrient requirements and even promote growth through physiological plasticity.
资助机构National Natural Science Foundation of China; Strategic Priority Research Program of the Chinese Academy of Sciences; Yellow River Delta Ecology Research Station of Coastal Wetland, Chinese Academy of Sciences
收录类别SCI
语种英语
关键词[WOS]PHENOTYPIC PLASTICITY; SOIL HETEROGENEITY; GROWTH; PLANT; SALINITY; COMPETITION; WETLAND; AVAILABILITY; ENVIRONMENTS; INTEGRATION
研究领域[WOS]Environmental Sciences & Ecology; Marine & Freshwater Biology
WOS记录号WOS:000691268500001
引用统计
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/29716
专题中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
中科院海岸带环境过程与生态修复重点实验室_滨海湿地实验室
中科院海岸带环境过程与生态修复重点实验室
通讯作者Guan, Bo; Han, Guangxuan作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Shandong Key Lab Coastal Environm Proc,YICCAS, Yantai 264003, Peoples R China
2.Jilin Jianzhu Univ, Sch Municipal & Environm Engn, Changchun 130118, Peoples R China
3.Hohai Univ, Coll Environm, Key Lab Integrated Regulat & Resource Dev Shallow, Minist Educ, Nanjing 210098, Peoples R China
4.Louisiana State Univ, Coll Coast & Environm, Dept Environm Sci, Baton Rouge, LA 70803 USA
推荐引用方式
GB/T 7714Guan, Bo,Gao, Nan,Chen, Min,et al. Seedling adaptive characteristics of Phragmites australis to nutrient heterogeneity under salt stress using a split-root approach[J]. AQUATIC SCIENCES,2021,83(3):11.
APAGuan, Bo.,Gao, Nan.,Chen, Min.,Cagle, Grace A..,Hou, Aixin.,...&Tian, Xiaoyan.(2021).Seedling adaptive characteristics of Phragmites australis to nutrient heterogeneity under salt stress using a split-root approach.AQUATIC SCIENCES,83(3),11.
MLAGuan, Bo,et al."Seedling adaptive characteristics of Phragmites australis to nutrient heterogeneity under salt stress using a split-root approach".AQUATIC SCIENCES 83.3(2021):11.
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