Ecophysiological response of native and exotic salt marsh vegetation to waterlogging and salinity: Implications for the effects of sea-level rise.
Ecophysiological response of native and exotic salt marsh vegetation to waterlogging and salinity: Implications for the effects of sea-level rise.
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本地和外来盐沼植被对涝渍和盐度的生态生理反应：对海平面上升影响的影响
DOI：
10.1038/s41598-017-18721-z
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发表时间：
2018-02-05
影响因子：
4.6
通讯作者：
Zhang LQ
中科院分区：
文献类型：
--
作者：
Li SH;Ge ZM;Xie LN;Chen W;Yuan L;Wang DQ;Li XZ;Zhang LQ
为探讨芦苇和互花米草对海平面上升的适应能力，研究了淹水和盐胁迫下芦苇和互花米草的生理生态特性。研究了大叶杨表型性状、光合活性和叶绿素荧光参数的季节变化。australis没有显着变化下浅洪，而这些变量是敏感的盐度增加。淹水加剧了盐胁迫对水稻新梢生长和光合活性的负面影响。australis，并且联合胁迫导致雄穗和生殖器官的缺失。相比之下，S.互花米草在两种胁迫下均表现良好，并表现出明显的盐分泌适应性。低盐度是S.在中度胁迫条件下，互花米草的雄穗生长、叶绿素含量和荧光特性差异不显著。两种植物叶片中Na+和Cl−的浓度增加，K+含量下降，响应盐度。在中等和高盐水平下，互花米草体内离子浓度维持在相对稳定的水平，盐分泌增加。我们预期P.澳大利亚和进一步殖民S.在中国海岸线上，由于海平面上升，互花米草遭受了长期的洪水和盐水入侵。
The ecophysiological characteristics of nativePhragmites australis and exoticSpartina alternifloragrown under waterlogging and salinity were investigated to explore their adaptation potential to sea level rise. The seasonal course of phenotypic traits, photosynthetic activity and chlorophyll fluorescence parameters ofP. australisdid not change remarkably under shallow flooding, whereas these variables were sensitive to increasing salinity. Waterlogging exacerbated the negative effects of salinity on shoot growth and photosynthetic activity ofP. australis, and the combined stresses led to an absence of tassel and reproductive organs. By contrast,S. alternifloraperformed well under both stresses and showed an obvious adaptation of salt secretion with increasing salinity. Light salinity was the optimal condition forS. alterniflora, and the tassel growth, chlorophyll content and fluorescence characters under moderate stresses did not differ notably. The Na+and Cl−concentrations in leaves of both species increased, and the K+content decreased in response to salinity. Under moderate and high saline levels, the ion concentrations inS. alterniflorawere maintained at relatively consistent levels with increased salt secretion. We expect the degradation ofP. australisand further colonization ofS. alternifloraunder prolonged flooding and saltwater intrusion from sea level rise on the coastline of China.
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影响因子：
2.7
作者：
Chen, Jiquan;Zhao, Bin;Chen, Jiakuan
通讯作者：
Chen, Jiakuan
影响因子：
1.9
作者：
Gorai, Mustapha;Ennajeh, Mustapha;Neffati, Mohamed
通讯作者：
Neffati, Mohamed
中国东部沿海盐沼对海平面上升的响应以及植被和沉积过程
影响因子：
4.6
作者：
Ge ZM;Wang H;Cao HB;Zhao B;Zhou X;Peltola H;Cui LF;Li XZ;Zhang LQ
通讯作者：
Zhang LQ
影响因子：
4.6
作者：
Arns A;Dangendorf S;Jensen J;Talke S;Bender J;Pattiaratchi C
通讯作者：
Pattiaratchi C
影响因子：
2.4
作者：
Bornette, Gudrun;Puijalon, Sara
通讯作者：
Puijalon, Sara