| 山西果园秋季杂草群落数量分类和排序分析 |
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| 引用本文： | 杨明霞,仝卉,李素清.山西果园秋季杂草群落数量分类和排序分析[J].山西农业科学,2011,39(7):699-703,711. |
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| 作者姓名： | 杨明霞 仝卉 李素清 |
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| 作者单位： | 1. 山西大学黄土高原研究所,山西太原030006;山西省农业科学院果树研究所,山西太谷030815
2. 山西大学黄土高原研究所,山西太原,030006 |
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| 基金项目： | 山西省留学办资助项目(晋留管办发(2009)9号(84)) |
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| 摘 要： | 通过野外调查,应用双向指示种分析法(TWINSPAN)分类和无趋势对应分析法(DCA)排序,对山西省农业科学院果树研究所果园秋季杂草群落进行了数量分类和排序分析。根据TWINSPAN分类结果,并结合生态特性,将所调查的果园69个样方划分为12个群丛,论述了各群丛的群落学特征。TWINSPAN分类结果较好地反映了杂草群落类型与环境梯度之间的关系,并在DCA二维排序图上得到较好的验证。DCA排序进一步说明了群系的分布格局与土壤养分、土壤水分和海拔的密切关系。结果表明,组成果园杂草的种群对群落生境具有指示作用,能客观反映群落的生境特征。
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| 关 键 词： | 果园 杂草群落 TWINSPAN分类 DCA排序 |
Quantitative Classification and Ordination of Autumn Weed Communities in Orchard in Shanxi Province |
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| YANG Ming-xia,TONG Hui,LI Su-qing.Quantitative Classification and Ordination of Autumn Weed Communities in Orchard in Shanxi Province[J].Journal of Shanxi Agricultural Sciences,2011,39(7):699-703,711. |
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| Authors: | YANG Ming-xia TONG Hui LI Su-qing |
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| Institution: | YANG Ming-xia1,2,TONG Hui1,LI Su-qing1(1.Institute of Loess Plateau,Shanxi University,Taiyuan 030006,China,2.Institute of Pomology,Shanxi Academy of Agricultural Sciences,Taigu 030815,China) |
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| Abstract: | Through field investigation,two-way indicator species analysis(TWINSPAN) and distended correspondence analysis(DCA) were adopted to conduct weed community classification and ordination in orchard in autumn in Institute of Pomology,Shanxi Academy of Agricultural Sciences.According to the results of TWINSPAN and in combination with the ecological characteristics of the region,69 quadrats were divided into 12 associations,and their community characteristics were described.The result of TWINSPAN reflects the re... |
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| Keywords: | orchard weed community TWINSPAN classification DCA ordination |
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