干旱区生态环境知识资源中心(Arid): 怒江中游西藏境内干旱河谷荒漠植被特征

Arid

	怒江中游西藏境内干旱河谷荒漠植被特征
其他题名	Vegetative Characteristics in the Dry Valley of the Middle Reaches of Nujiang River in Tibet,China
	庄翠珍; 杜凡; 刘宁; 张辉; 陈勇; 杜小浪
来源期刊	植物分类与资源学报
ISSN	2095-0845
出版年	2011
卷号	33 期号:4 页码:433-442
中文摘要	基于实地调查资料，对西藏境内怒江中游河谷的特殊荒漠型植被进行了研究。结果表明:(1)22个样方中有85种维管植物，其种子植物属的分布区类型以泛热带分布为主，占21.6%；种以中国特有分布中的西南特有成分为主，占53.2%；(2)生活型谱以矮高位芽植物为主，占41.2%，地面芽植物占 40．O%；(3)采用Raunkiaer频度分析，出现在10个以上样方中的物种有白刺花、垫状卷柏、芸香草和阔盖中国蕨等，频度分别是68.2%、50.O%、50.0%、45.5%; (4)根据该河谷区域的气候特点、干旱程度、群落的生态外貌特征和生活型等，并结合《中国植被》对灌丛和荒漠的划分，认为该河谷区域的植被盖度极低，不属于灌丛类型，而是非地带性的干旱河谷型荒漠植被。
英文摘要	Based on statistical analysis of the characteristics of the vegetation in the dry valley in middle reaches of the Nujiang River in Tibet,it is revealed that:(1)There are 85 vascular plant species belonging to 55 genera in 34 families,including 4 ferns belonging to 4 genera in 4 families; 1 species of Gymnosperm; 79 species of Angiosperm belonging to 50 genera in 29 families.13 areal-types of the seed plants genera can be recognized,but mainly Pantropic (21.6%).45 (57.0% of the total)species endemic to China are found,of which 42 (53.2%)species are endemic to SW China and 3 (3.8%)species endemic in Tibet.(2)Four main life-forms,the Nanophanerophyte,the Hemicryptophyte,the Chamaephyte and the Therophyte,can be recognized,of which the Nanophanerophyte is highest,occupying 41.2% and the Hemicryptophyte accounting for 40% of the total.(3)Based on the Raunkiaer frequency analysis,Sophora davidii,Sellaginella pulvinata,Cymbopogon distans,Sinopteris albofusca occurring in over 10 transect plots are among the highest frequency degrees with frequent percentage as 68.2% ,50.0% ,50.0% ,45.5% ,respectively.(4)Based on the climate features and severity of drought,the characteristics of the ecological status,the living forms of communities with very low degree of plant coverage,the vegetation belongs to riparian arid desert type.
中文关键词	怒江中游 ; 荒漠植被 ; 干旱河谷
英文关键词	Middle reaches of Nujiang River Wasteland vegetation Dry valley
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:4275014
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/227364
作者单位	西南林业大学林学院, 昆明, 云南 650224, 中国
推荐引用方式 GB/T 7714	庄翠珍,杜凡,刘宁,等. 怒江中游西藏境内干旱河谷荒漠植被特征[J],2011,33(4):433-442.
APA	庄翠珍,杜凡,刘宁,张辉,陈勇,&杜小浪.(2011).怒江中游西藏境内干旱河谷荒漠植被特征.植物分类与资源学报,33(4),433-442.
MLA	庄翠珍,et al."怒江中游西藏境内干旱河谷荒漠植被特征".植物分类与资源学报 33.4(2011):433-442.