干旱区生态环境知识资源中心(Arid): 新疆中天山山间盆地表土花粉谱特征

Arid

	新疆中天山山间盆地表土花粉谱特征
其他题名	Surface pollen spectrum in intermountain basin of Middle Tianshan,Xinjiang,China
	郎青; 姚付龙; 杨海军
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2020
卷号	39 期号:8 页码:2518-2527
中文摘要	基于中天山山间盆地58个表土样品花粉谱特征,结合植物群落样方物种调查结果,分析了该区域表土花粉与现代植被分布的对应关系。结果表明:(1)中天山山间盆地表土花粉组合与现代植被分布相一致,聚类分析结果将研究区分为5个植被带,按海拔由低到高的顺序分别对应荒漠草原带、山地草原带、山地森林带、亚高山草甸带、高山流石坡植被带。主成分分析第1轴揭示,湿度是植被带形成的重要影响因素。植被带之间花粉组合差异显著,荒漠草原带藜科-蒿属花粉组合优势明显,山地草原带则表现为蒿属-禾本科-藜科花粉组合,云杉属-蒿属-禾本科-藜科花粉组合及云杉属含量>25%共同指示山地森林带的存在,亚高山草甸带花粉组合表现为莎草科-斗篷草属-蒿属-禾本科-藜科,高山流石坡植被带以蒿属-藜科-莎草科-斗篷草属-禾本科花粉组合为主。(2)蒿属、藜科、禾本科、云杉属、莎草科、斗篷草属是中天山山间盆地的代表物种,可作为古环境重建的重要参考。蒿属、藜科表现出超代表性,禾本科则相反。(3)中天山山间盆地植被带表土花粉分布及含量影响因素复杂,云杉属花粉受西风环流影响较大,蒿属、藜科花粉受人类活动影响显著。
英文摘要	Based on the pollen spectrum of 58 topsoil samples collected in intermountain basin of the Middle Tianshan and a plant-community quadrat survey,we analyzed the relationship between topsoil pollen assemblages and modern vegetation distribution in this region.The results showed that:(1)The pollen assemblages were consistent with modern vegetation distribution.Based on the results of cluster analysis,the study area could be divided into five zones with increasing elevation,namely desert grassland,mountain grassland,mountain forest,subalpine meadow,and alpine scree vegetation.Axis 1 of the principal component analysis revealed that humidity was an important factor driving the formation of these vegetation zones.The pollen assemblages differed significantly among vegetation zones,with Chenopodiaceae Artemisia,Artemisia-Poaceae-Chenopodiaceae,Picea-Artemisia-Poaceae-Chenopodiaceae(Picea>25%),Cyperaceae-Alchemilla-Artemisia- Poaceae-Chenopodiaceae,and Artemisia-Chenopodiaceae-Cyperaceae-Alchemilla-Poaceae pollen assemblages dominating the desert grassland,mountain grassland,mountain forest,subalpine meadow,and alpine scree vegetation zones,respectively.(2)Artemisia,Chenopodiaceae,Poaceae,Picea,Cyperaceae,and Alchemilla are the representative species in intermountain basin of the Middle Tianshan,which can serve as important reference for palaeoenvironment reconstruction.Artemisia and Chenopodiaceae were over represented,while Poaceae was opposite.(3)The factors affecting the distribution and content of topsoil pollen in the vegetation zones were complex,with the pollen of Picea being greatly affected by the westerly circulation and those of Artemisia and Chenopodiaceae being significantly affected by human activities.
中文关键词	花粉组合 ; 植被带 ; 聚类分析 ; 主成分分析
英文关键词	pollen assemblage vegetation zone cluster analysis principal component analysis
类型	Article
语种	中文
收录类别	CSCD
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:6778299
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336763
作者单位	郎青, 伊犁师范大学生物与地理科学学院, 伊宁, 新疆 835000, 中国.; 姚付龙, 伊犁师范大学生物与地理科学学院, 伊宁, 新疆 835000, 中国.; 杨海军, 伊犁师范大学生物与地理科学学院, 伊宁, 新疆 835000, 中国.
推荐引用方式 GB/T 7714	郎青,姚付龙,杨海军. 新疆中天山山间盆地表土花粉谱特征[J],2020,39(8):2518-2527.
APA	郎青,姚付龙,&杨海军.(2020).新疆中天山山间盆地表土花粉谱特征.生态学杂志,39(8),2518-2527.
MLA	郎青,et al."新疆中天山山间盆地表土花粉谱特征".生态学杂志 39.8(2020):2518-2527.