【摘要】 对盐池中部沙地植物资源特征和生物多样性调查分析,结果表明:盐池中部沙地可分为缓坡沙地,硬梁地和低湿滩地3种。植物种类有105种,隶属29科,83属。在这3种沙化土地类型中,多度分布特征基本一致,即个体数量稀少的种和个体数量极多的种在群落中较少,中等多度即2~8个/m2的种数量较多。物种的丰富度、均匀性、多样性变化基本一致,由高到低依次为硬梁地、缓坡沙地、低湿滩地,其计算结果与现场直观目测情况基本相吻合。在此基础上,并提出相应的保护措施。更多还原

【Abstract】 Through investigation and analysis of plant resource characteristics and biodiversity in Yanchi middle sandy land,the results show: There are three kinds of sandy land in middle Yanchi,which are slight-slope sandy land,hard ridge and low,damp beach land;there are 105 plant species,which belong to 29 Family,83 Genus;In the three sandificated land types,characteristics of abundance distribution are almost the same,that is to say,there are not many species with a very little number or with a very large number;most species have middle abundance distribution of 2～8/m2;the change of species abundance,uniformity and diversity are almost the same,with hard ridge,slightslope sandy land and low,damp beach land from high to low;this calculated result coincides with the observed fact.Finally,some protection measures and suggestions on how to conserve biodiversity in the area are put forward.更多还原