新疆巴尔鲁克山植被的水分生态型及生活型谱研究

Study on Water Ecotypes and Life-Form Spectrum of Vegetation the Xinjiang Baerluke Mountains

以巴尔鲁克山植物为研究对象,采用Raunkiaer生活型分类系统,研究调查了巴尔鲁克山植物生活型谱和水分生态型的组成及特征。以期为该地区植物与环境之间的关系研究提供理论依据。结果表明:巴尔鲁克山植物共有86科、451属、1 295种;巴尔鲁克山植物生活型组成以地面芽植物为主,占61.1%,其次是1a生植物,占13.8%,高位芽和地下芽植物也较多,占11.1%和10.1%,地上芽植物很少,仅占3.62%;生态型组成以旱生植物为主,占43.2%,其次是中生植物,占36.4%,其它类型占的极少。该调查研究总体上反映了亚洲温带山区草原的基本特征;植被水分生态型由中生向旱生转变,研究区物种组成有旱化趋势。

Based on the plant list and feild survey statistics of the study area and the Raunkiaer＇s life-form system,the life-form and water ecotypes of the plants in Baerluke Mountains were studied and reveal the life-forms and ecological features to provide a theoretical basis for study of the relationship between the plant and environment in the region.The results showed that there were 86 families,451 genere 1 295 species in Baerluke Mountains.The main component of plant life form in Baerluke Mountains was Hemicryptophyte,accounting of 61.1%.Followed by Therophytes occupying 13.8%.Phanerophyte and Cryptophytes respectively accounted for 11.1% and 10.1%.The Chamaephyte accounted for just 3.62%.Xerophytes was the main part of the ecotype,accounting of 43.2%,followed by Mesophyte occupy36.4% and other types of life-forms were rare.The life-form and water ecotypes of the plants in Baerluke Mountains generally reflect the subalpine tempurater forests and grassland.The mesophyte transform into xerophytes.From the species composition point of view,the Baerluke Mountains plants had a tendency to be drought.