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首页> 外文期刊>Estuarine Coastal and Shelf Science >Plant distribution and stand characteristics in brackish marshes: Unravelling the roles of abiotic factors and interspecific competition
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Plant distribution and stand characteristics in brackish marshes: Unravelling the roles of abiotic factors and interspecific competition

机译：咸淡沼泽中植物的分布和林分特征：阐明非生物因素和种间竞争的作用

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摘要

Due to increasing pressure on estuarine marshes from sea level rise and river training, there is a growing need to understand how species-environment relationships influence the zonation and growth of tidal marsh vegetation. In the present study, we investigated the distribution and stand characteristics of the two key brackish marsh species Bolboschoenus maritimus and Phragmites australis in the Elbe estuary together with several abiotic habitat factors. We then tested the effect of these habitat factors on plant growth and zonation with generalised linear models (GLMs). Our study provides detailed information on the importance of single habitat factors and their interactions for controlling the distribution patterns and stand characteristics of two key marsh species. Our results suggest that flow velocity is the main factor influencing species distribution and stand characteristics and together with soil-water salinity even affects the inundation tolerance of the two specie investigated here. Additionally, inundation height and duration as well as interspecific competition helped explain the distribution patterns and stand characteristics. By identifying the drivers of marsh zonation and stand characteristics and quantifying their effects, this study provides useful information for evaluating a future contribution of tidal marsh vegetation to ecosystem-based shore protection. (C) 2017 Elsevier Ltd. All rights reserved.
机译：由于海平面上升和河道训练给河口沼泽带来的压力越来越大，因此越来越需要了解物种与环境之间的关系如何影响潮汐沼泽植被的分区和生长。在本研究中，我们调查了易北河河口两个主要的淡咸沼泽物种Bolboschoenus maritimus和Phragmites australis的分布和林分特征，以及一些非生物生境因素。然后，我们使用广义线性模型（GLM）测试了这些栖息地因素对植物生长和分区的影响。我们的研究提供了有关单一栖息地因素及其相互作用对控制两个关键沼泽物种的分布格局和林分特征的重要性的详细信息。我们的结果表明，流速是影响物种分布和林分特性的主要因素，并且与土壤水盐分一起甚至会影响此处研究的两种物种的淹没耐受性。此外，淹没高度和持续时间以及种间竞争有助于解释分布方式和林分特征。通过确定沼泽地带和林分特征的驱动因素并量化其影响，本研究为评估潮汐沼泽植被对基于生态系统的海岸保护的未来贡献提供了有用的信息。 （C）2017 Elsevier Ltd.保留所有权利。

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  • 来源
    《Estuarine Coastal and Shelf Science》 |2017年第5期|237-247|共11页
  • 作者

    Carus Jana; Heuner Maike; Paul Maike; Schroeder Boris;

  • 作者单位

    Tech Univ Carolo Wilhelmina Braunschweig, Inst Geoecol, Landscape Ecol & Environm Syst Anal, Langer Kamp 19c, D-38106 Braunschweig, Germany|Univ Potsdam, Inst Earth & Environm Sci, Karl Liebknecht Str 24-25, D-14476 Potsdam, Germany;

    Fed Inst Hydrol, Dept Ecol Interact, Koblenz, Germany;

    Tech Univ Carolo Wilhelmina Braunschweig, Inst Geoecol, Landscape Ecol & Environm Syst Anal, Langer Kamp 19c, D-38106 Braunschweig, Germany;

    Tech Univ Carolo Wilhelmina Braunschweig, Inst Geoecol, Landscape Ecol & Environm Syst Anal, Langer Kamp 19c, D-38106 Braunschweig, Germany|Berlin Brandenburg Inst Adv Biodivers Res BBIB, Berlin, Germany;

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  • 正文语种 eng
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  • 关键词

    Bolboschoenus maritimus; Elbe estuary; Flow velocity; Inundation; Phragmites australis; Soil-water salinity;

    机译：海白桦;易北河口;流速;淹没;芦苇;水盐分;

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