干旱区生态环境知识资源中心(Arid): 古尔班通古特沙漠半固定沙丘植物群落物种组成和种群结构

Arid

	古尔班通古特沙漠半固定沙丘植物群落物种组成和种群结构
其他题名	Species composition and population structure of plant communities on semi-fixed dunes of the Gurbantongut Desert,China
	石亚飞 1; 张志山1 ; 黄磊 1; 胡宜刚 1; 李君 2; 杨与广 3
来源期刊	应用生态学报
ISSN	1001-9332
出版年	2016
卷号	27 期号:4 页码:1024-1030
中文摘要	通过野外调查,研究古尔班通古特沙漠半固定沙丘植物群落的物种组成,采用株高、冠幅、体积大小级代替年龄结构,分析了典型灌木种群的生长状态及发展趋势. 结果表明: 在古尔班通古特沙漠半固定沙丘共调查到23种植物,出现最多的是藜科,6属8种,其次是菊科,5属6种,该沙漠植被组成数目少,群落结构简单. 白梭梭主要分布在丘顶,为稳定增长型种群,而梭梭数量少. 油蒿是当地工程建设后进行植被恢复而引入的物种,主要分布在迎风坡和丘顶,为增长型年龄结构,有很大的增长潜力,已经影响到原有的物种组成. 白皮沙拐枣和蛇麻黄幼苗缺失,幼龄个体少,形成衰退型年龄结构,且白皮沙拐枣的空间分布区域与油蒿重合,未来可能被油蒿替代.
英文摘要	The objective of this study was to investigate species composition,and predict future development of dominant species on semi-fixed sand dunes in the Gurbantongut Desert. Using the plant height,crown area and volume instead of age structure,the growth and development condition of dominant shrub populations were analyzed. The results showed that totally 23 species were observed, of which Chenopodiaceae occurred the most with 6 genera 8 species,followed by Asteraceae with 5 genera 6 species. The vegetation community of Gurbantunggut Desert was characterized by few species,and simple structure. As a dominant species,Haloxylon persicum was distributed mainly on the top of the dunes and was a stable increasing population. However,the number of H. ammodendron was small. Artemisia ordosica,as an exotic species introduced by vegetation restoration after construction,covered mainly in the windward and the top of dunes. The po-pulation of A. ordosica had an increasing age structure with a strongly increasing potential,which has affected local species composition. The populations of Calligonum leucocladum and Ephedra distachya were lack of seedlings and had few saplings,resulting in the declining age structure. Due to the same distribution habitat,C. leucocladum might be replaced by A. ordosica in the future.
中文关键词	植被组成 ; 种群结构 ; 外来种
英文关键词	species composition population structure exotic species
语种	中文
国家	中国
收录类别	CSCD
WOS类目	BIOLOGY
WOS研究方向	Life Sciences & Biomedicine - Other Topics
CSCD记录号	CSCD:5685166
来源机构	中国科学院西北生态环境资源研究院 ; 中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/235241
作者单位	1.中国科学院寒区旱区环境与工程研究所, 中国科学院沙坡头沙漠研究试验站, 兰州, 甘肃 730000, 中国; 2.中国科学院新疆生态与地理研究所, 荒漠与绿洲生态国家重点实验室, 乌鲁木齐, 新疆 830011, 中国; 3.中国科学院大学, 荒漠与绿洲生态国家重点实验室, 北京 100049, 中国
推荐引用方式 GB/T 7714	石亚飞,张志山,黄磊,等. 古尔班通古特沙漠半固定沙丘植物群落物种组成和种群结构[J]. 中国科学院西北生态环境资源研究院, 中国科学院新疆生态与地理研究所,2016,27(4):1024-1030.
APA	石亚飞,张志山,黄磊,胡宜刚,李君,&杨与广.(2016).古尔班通古特沙漠半固定沙丘植物群落物种组成和种群结构.应用生态学报,27(4),1024-1030.
MLA	石亚飞,et al."古尔班通古特沙漠半固定沙丘植物群落物种组成和种群结构".应用生态学报 27.4(2016):1024-1030.