干旱区生态环境知识资源中心(Arid): 新疆奇台荒漠植物群落的数量分类及土壤环境解释

Arid

	新疆奇台荒漠植物群落的数量分类及土壤环境解释
其他题名	The numerical classification of desert vegetation and soil interpretation in Qitai County, Xinjiang
	周志强; 魏晓雪; 刘彤
ISSN	1005-0094
出版年	2007
卷号	15 期号:3 页码:264-270
中文摘要	为阐明古尔班通古特沙漠南缘荒漠植物群落的分类及与土壤因子的相关关系，作者于2005年67月在新疆奇台县采用机械布设样线和样线上随机布设样地的方法进行了野外调查。共设置48块20mX10m的样方，每个样方中又梅花状设置5个1m*1m的草本样方进行植被调查。植被调查结束后，选择群落外貌上差异显著的样地进行土壤取样（取土深度分别为0cm、10cm、30cm、50cm、80cm），共获得20个样方的土壤样本。以植物重要值作为衡量植物组成相似性的指标，应用逐步聚类的方法将调查区域植被划分为4种类型：芦苇（Phragmites australis）＋芨芨草口chnatherum splendens）群落，梭梭（Haloxylon ammodendron）--枇杷柴（Reaumuria songarica）＋西伯利亚白刺群落（Nitraria sibirica），梭梭一心叶驼绒藜（Ceratoides ewersmanniana）--白茎绢蒿（Seriphidiumterrae．albae）群落和心叶驼绒藜一骆驼刺（Ahagi sparsifolia）群落。不同群落类型土壤因子的主成分分析的结果表明：提取3个主分量能够解释85．65％的群落间土壤因子差异，第1主分量与土壤平均pH值和深层土壤pH值相关，第2主分量与平均有机质含量和土壤浅层有机质含量相关，而第3主分量与平均土壤含盐量和土壤浅层含盐量相关。
英文摘要	In order to explore the correlations between desert plant community types and soil variables at the southern edge of Gurbantunggut Desert, we established 48 quadrats of 20 m * 10 m to study the vegetation by the randomized systematic method in Qitai County of Xinjiang in 2005. After vegetation survey, we se- lected 20 plots with obviously different physiognomy and sampled soils at 0, 10, 30, 50 and 80 cm depths, respectively. Plants and soil characters were analyzed simultaneously and the results were correlated. A hierarchical cluster and principle component analysis （PCA） were performed based on importance value of plant species and soil variables, respectively. Four types of communities were recognized and described in details, i.e. Phragmites australis ＋ Achnatherum splendens community, Haloxylon ammodendron＋Reaumuria songarica＋Nitraria sibirica community, Haloxylon ammodendron＋Ceratoides ewersmanniana＋ Seriphidium terrae-albae community, and Ceratoides ewersmannian＋Alhagi sparsifolia community. The results of principle component analysis showed that there was a specific relationship between soil variables and plant community type. Three principal components, namely pH, organic matter content, and soil salinity, could explain 85.65% of the differences among the soils of different plant communities.
中文关键词	荒漠 ; 植被类型 ; 逐步聚类 ; 主成分分析 ; 土壤因子 ; 重要值
英文关键词	desert community types hierarchical cluster principal components analysis soil variables importance value
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:2865912
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/221394
作者单位	东北林业大学, 哈尔滨, 黑龙江 150040, 中国
推荐引用方式 GB/T 7714	周志强,魏晓雪,刘彤. 新疆奇台荒漠植物群落的数量分类及土壤环境解释[J],2007,15(3):264-270.
APA	周志强,魏晓雪,&刘彤.(2007).新疆奇台荒漠植物群落的数量分类及土壤环境解释.,15(3),264-270.
MLA	周志强,et al."新疆奇台荒漠植物群落的数量分类及土壤环境解释".15.3(2007):264-270.