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The Analysis on Forming Reason and Mechanism of Reaumuria Soongorica Community in Steppe Region
Author: WangChangShun
Tutor: WangZuo
School: Inner Mongolia University
Course: Ecology
Keywords: The red sand secretion salt Ecological adaptation Competitive advantage Shiojima
CLC: Q948
Type: Master's thesis
Year: 2010
Downloads: 47
Quote: 0
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Abstract
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The red sand is a typical desert plants , can be distributed to the grassland area with saline-alkali soil . Red sand in the diffusion process , from desert to grasslands communities by the zonal vegetation gradually changes to intrazonal vegetation . Due to changes in the eco- geographical environment , ecological adaptation mechanisms in the the Savanes red sand the adaptation mechanism differs from it in the desert . This article through the change of salt stress planting competition among native communities in soil salt content and community change , the horizontal pattern of the different plant communities on the vertical and horizontal distribution of soil salinity heterogeneity and red sand secretion salt , dynamic monitoring determination to determine : the red sand in the desert environment of extreme drought tolerance , weakened its competitiveness in a non - coercive environment , so that can not be grown on zonal soils of the grassland area . Salt secretion red sand to form a salt around the island and have an impact on the surrounding environment . The Red Sand secrete salt leaching balance the long-term stable Shiojima . Such habitats to build the \This article reveals the red sand with the inorganic salt as \The plant specialized obtained specific adaptability , also lost some ability to adapt ( competitiveness ) . The environmental gradients construct the zonal distribution of vegetation , plant this is the trade-off distribution of the causes and mechanisms of formation and stability in ecological adaptation .
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CLC: > Biological Sciences > Botany > Plant ecology and biogeography
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