| 青海湖北岸植物群落的数量分类 |
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| 引用本文： | 刘庆,周立华.青海湖北岸植物群落的数量分类[J].西南师范大学学报(自然科学版),1993,18(4):485-492. |
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| 作者姓名： | 刘庆 周立华 |
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| 作者单位： | 西南师范大学生物系 重庆630715
(刘庆)，中国科学院西北高原生物研究所 西宁810001(周立华) |
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| 摘 要： | 依据对青海湖北岸植物群落的踏查和对鸟岛、大通山,以及海晏湾3个地区的野外取样调查,比较讨论了重要值的各类计算公式.认为,在草地植物群落中用重要值=(相对盖度+相对频度)/2×100比较科学,并用组平均法(GAM)对该地区植物群落进行了分类,划分为24个群落,分别属于沙生植被、沼泽草甸、草甸、温性草原、高寒草甸、高寒灌丛及高山流石滩稀疏植被等7个植被型.
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| 关 键 词： | 青海湖 植物群落 组平均法 分类 |
A QUANTITATIVE CLASSIFICATION OF PLANT COMMUNITIES IN THE NORTH SHORE OF QINGHAI LAKE |
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| Liu Qing.A QUANTITATIVE CLASSIFICATION OF PLANT COMMUNITIES IN THE NORTH SHORE OF QINGHAI LAKE[J].Journal of Southwest China Normal University(Natural Science),1993,18(4):485-492. |
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| Authors: | Liu Qing |
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| Abstract: | Qinghai Lake is the largest inland saline lake in China. It is situated in the northeastern part of the Qinghai-Xizang Plateau.Based on the field survey to the plant communities in the north shore of Qinghai Lake and the field sampling to following three regions , i. e. , Birds Island, Datong Mountains and Haiyan Bay. We firstly analysed various formula of the IV and selected the formula IV = (C' +F' ) /2X 100 as the best one. Finally,by using a group-average method (GAM) classification, we can classify the vegetation into 24 communities of 7 major vegetation types, namely, the sand vegetation, swamp meadow, meadow, temparate steppe, alpine meadow, alpine shrubs and subnival vegetation. |
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| Keywords: | Qinghai Lake plant communities group-average method classification important value |
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