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首页> 外文期刊>Pakistan journal of botany >DISTRIBUTION, SPECIES DIVERSITY AND COMPOSITION OF PLANT COMMUNITIES IN RELATION TO VARIOUS AFFECTING FACTORS IN AN ALPINE GRASSLAND AT BANDIPORA, KASHMIR
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DISTRIBUTION, SPECIES DIVERSITY AND COMPOSITION OF PLANT COMMUNITIES IN RELATION TO VARIOUS AFFECTING FACTORS IN AN ALPINE GRASSLAND AT BANDIPORA, KASHMIR

机译：分布，物种多样性和植物群落的组成与克什米尔·卡什米尔高山草原各种影响因素有关

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摘要

This study provides a broad understanding of vascular plant richness and community structure of mountain grassland(Matri) at Bandipora, Kashmir and links it various environmental variables. Employing a stratified sampling design, six siteswere selected wherein vegetation was sampled by placing quadrats (n=210). Elucidating an important effect of topographyand anthropic pressure, numerical classification –TWINSPAN segregated the quadrats into seven community types.Contrary to species rich communities which showed an explicit composition and localized distribution, the othercommunities depicted a vague composition and stretched unevenly between the lower and middle altitudes. Using canonicalcorrespondence analysis (CCA), elevation and disturbance were found as most influencing factors whereas steepness ofslope, organic carbon, soil reaction (pH) and soil salinity (electrical conductivity) were other important factors. Indices ofdiversity measured at two measurement scales varied differently between communities and at a macro scale (site level)highest values were recorded in least disturbed communities. However, on a micro scale (quadrat level) the indices behaveddifferently. For effective conservation of these species rich grasslands, acknowledging the local level variability invegetation structure is all but crucial.
机译：本研究在Bandipora，Kashmir的山地草地（Matri）的广泛了解，对山地草地（Matri）进行了广泛的了解，并将其与各种环境变量联系起来。采用分层采样设计，选择了六个位点，其中通过放置四rats（n = 210）来采样植被。阐明了拓扑的重要作用，数值分类-Twinspan将四轮车分离成七种社区类型。对物种富裕社区的组合，表现出明确的组成和局部分布，除了下层和中间高度之间的模糊组成和伸展不均匀。使用CanonicalCorreskence分析（CCA），发现升高和干扰是大多数影响因素，而陡坡，有机碳，土壤反应（pH）和土壤盐度（导电性）是其他重要因素。在两个测量尺度上测量的索引的指数不同地在社区之间不同，并且在宏观（站点级）以最高令人不安的社区记录最高值。但是，在微尺度（四边形级别）上，索引表现得令人效果。为了有效保护这些物种丰富的草原，承认局部级别变异的刨平结构是至关重要的。

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