干旱区生态环境知识资源中心(Arid): 短命植物层群落年内变化与水热条件的关系

Arid

	短命植物层群落年内变化与水热条件的关系
其他题名	On the Relationships between Intra-annual Variation of Ephemeral Synusia and Hydrothermal Conditions
	袁素芬 1; 唐海萍 2; 张宏锋 3
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2015
卷号	32 期号:5 页码:941-946
中文摘要	在新疆北部准噶尔荒漠的莫索湾地区,通过样方调查记录了2008年早春季节短命植物萌发到消失的群落特征变化,并结合同时段冬春季节的气温、降水等资料,分析了短命植物层群落年内变化与水热条件之间的密切关系。结果表明:早春季节首次降水的时间和降水量是决定短命植物萌动生长的主要因素,而出苗后的降水状况将显著影响当年的群落外貌特征,干旱高温季节到来的时间将决定短命植物最终的生活周期。此外,短命植物生长发育对偶然阵性降水具有极高的敏感性和适应性。
英文摘要	Ephemeral plant (Ephemerals) is generic terms a kind of plant group with very short life cycle or growth cycle and the growth cycle is 2 months or so commonly, then part or the whole plant dry dead on the ground and have a bad season in the form of components in below ground organs of dormant seeds. Ephemerals, including annual ephemerals and ephemeroids,are characterized by short-term growth rhythms and specific biological traits adapted to deserts or temperate broad-leaved deciduous forests. Few studies have been carried out on ephemeral community composition and their relationships with temperature and precipitation regimes in the desert. In 2008,we monitored the early-spring ephemeral community change in the Mosuowan area of the Junggar Desert,northern Xinjiang. We also collected temperature and precipitation data to analyze the effects of these factors on ephemeral adaptation. It turned out that the time and amount of the first rainfall were the important factors to determine the time of the germinating,and the precipitation status after seedling had significant effect on the community physiognomy in the current year,while the emergence time of hot-dry season determined the life cycle of the ephemerals. Additionally, Ephemeral plant has a special growth phenomenon with vegetative growth and reproductive growth over the same period, the growth and development of ephemerals showed a very high sensitivity and adaptability to the variations of hydrothermal conditions,e specially to the precipitation that appears occasionally. Ephemeral plant"a race against time"growth has high consistency with the water hot configuration.
中文关键词	短命植物 ; 植物群落 ; 物种多样性 ; 水热条件 ; 准噶尔盆地 ; 新疆
英文关键词	ephemeral plants plant community species diversity hydrothermal conditions Junggar Basin Xinjiang
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:5518753
来源机构	北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232744
作者单位	1.广东环境保护工程职业学院, 佛山, 广东 528216, 中国; 2.北京师范大学资源学院, 地表过程与资源生态国家重点实验室, 北京 100875, 中国; 3.广东省环境科学研究院, 广州, 广东 510045, 中国
推荐引用方式 GB/T 7714	袁素芬,唐海萍,张宏锋. 短命植物层群落年内变化与水热条件的关系[J]. 北京师范大学,2015,32(5):941-946.
APA	袁素芬,唐海萍,&张宏锋.(2015).短命植物层群落年内变化与水热条件的关系.干旱区研究,32(5),941-946.
MLA	袁素芬,et al."短命植物层群落年内变化与水热条件的关系".干旱区研究 32.5(2015):941-946.