| 祁连山北坡灌木群落数量分类与排序 |
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| 引用本文： | 赵婷婷,赵成章,康满萍,李群,唐玉瑞,曾红霞,王毓芳.祁连山北坡灌木群落数量分类与排序[J].生态学杂志,2021(3):731-739. |
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| 作者姓名： | 赵婷婷 赵成章 康满萍 李群 唐玉瑞 曾红霞 王毓芳 |
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| 作者单位： | 西北师范大学地理与环境科学学院 |
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| 基金项目： | 国家自然科学基金项目(41461013、41861009)资助。 |
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| 摘 要： | 植物群落的空间分布格局是异质生境条件下物种种间相互作用的结果,其分异规律及其与环境因子的关系研究有助于认识植物的生态适应性。本文基于祁连山北坡28个样地的调查数据,采用双向指示种分析法(TWINSPAN)和典范对应分析(CCA)法探讨了灌木群落的空间分布与环境因子间相互关系。结果表明:(1)TWINSPAN分类将祁连山北坡灌木植被划分为盐爪爪+珍珠猪毛菜(Ass.Kalidium foliatum+Lyonia ovalifolia)、灌木亚菊+合头草(Ass.Ajania fruticulosa+Sympegma regelii)、合头草+茵陈蒿(Ass.Sympegma regelii+Artemisia capillaries)、珍珠猪毛菜+多根葱(Ass.Lyonia ovalifolia+Allium polyrhizum)、甘蒙锦鸡儿+针茅(Ass.Caragana opulens+Stipa capillata)、鬼箭锦鸡儿+高山柳(Ass.Caragana jubata+Salix cupularis)和金露梅+珠芽蓼(Ass.Dosiphora fruticosa+Polygonum viviparum)等7个群丛类型;(2)CCA排序结果表明,海拔和土壤全盐量是影响祁连山北坡灌木群落分布的主要环境因子,有机质、土壤含水量、土壤容重和p H值是次要因子,速效磷和速效钾对植物群落的影响较弱。
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| 关 键 词： | 灌木群落 TWINSPAN CCA 环境因子 祁连山北坡 |
Numerical classification and ordination of shrub communities on the north slope of Qilian Mountains |
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| ZHAO Ting-ting,ZHAO Cheng-zhang,KANG Man-ping,LI Qun,TANG Yu-rui,ZENG Hong-xia,WANG Yu-fang.Numerical classification and ordination of shrub communities on the north slope of Qilian Mountains[J].Chinese Journal of Ecology,2021(3):731-739. |
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| Authors: | ZHAO Ting-ting ZHAO Cheng-zhang KANG Man-ping LI Qun TANG Yu-rui ZENG Hong-xia WANG Yu-fang |
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| Institution: | (School of Geography and Environmental Science,Northwest Normal University,Engineering Research Center of Wetland Resource Protection and Industrial Development in Gansu Province,Lanzhou 730070,China) |
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| Abstract: | The spatial distribution pattern of plant communities is a consequence of interspecific interaction in heterogeneous habitats.The study on its differentiation and its relationship with environmental factors is helpful to understand plant adaptation.Based on the survey data from 28 plots on the north slope of Qilian Mountains,the TWINSPAN and CCA analysis methods were used to explore the relationship between spatial distribution of shrub communities and environmental factors.The results showed that:(1)shrub communities on the north slope of Qilian Mountains could be classified into seven association groups by TWINSPAN,namely,Ass.Kalidium foliatum+Phyllanthus urinaria,Ass.Ajania fruticulosa+Sympegma regelii,Ass.Sympegma regelii+Artemisia capillaries,Ass.Lyonia ovalifolia+Allium polyrhizum,Ass.Caragana opulens+Stipa capillata,Ass.Caragana jubata+Salixcupularis,and Ass.Dosiphora fruticose+Polygonum viviparumn.(2)The results of CCA ordination showed that altitude and soil salinity were the main environmental factors driving the distribution of shrub communities on the north slope of Qilian Mountains,while soil organic matter,soil water content,soil bulk density and soil pH were the secondary factors.Soil available phosphorus and available potassium had minor effects on the distribution of plant community. |
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| Keywords: | shrub community TWINSPAN CCA environmental factor the north slope of Qilian Mountains |
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