乌鲁木齐河源区植被及表土花粉  

The Surface Sampleing of Vegetation and Pollen in the Source Area of the Urumqi River

作　　者：闫顺[1] 贾宝全[1] 许英勤[1] 杨云良[1] 

机构地区：[1]中国科学院新疆地理研究所,乌鲁木齐830011

出　　处：《冰川冻土》1996年第S1期264-273,共10页Journal of Glaciology and Geocryology

摘　　要：乌鲁木齐河源区植被有高山草甸和高山垫状植被两个垂直带。主要植物群系包括苔草草甸、嵩草草甸、高山莓群系、高山红景天群系、柔籽草群系等,有17类植物群落。区内表土花粉组合较好地反映了高山草甸和高山垫状植被两个垂直带,但难以准确反映不同植物群系间的区别。云杉属、麻黄属、蒿属、藜科花粉在此区明显是超代表性花粉,而多数建群草本植物花粉R值远小于1,是低代表性花粉。There are two alpine zones of vegetation, alpine meadow and alpine cashion, in the source area of the Urumqi River. Main vegetational formation is Form. Carex sp., Form. Kobresia sp., Form. Sibbaldia tetrandra, Form. Rhodiola coccinea and Form. Thylacospermum caespitosum. The surface pollen assemblage reflects cleacly the alpine meadow and alpine cashion, but it is difficult to distinguish the different vegetation formation. The pollen from Picea, Ephedra, Artemisia and Chenopodiaceae are more representative, but many herbaceous pollen in formation are less representative.

关 键 词：乌鲁木齐河源区 植被 表土花粉 

分 类 号：P343.6[天文地球—水文科学]