干旱区生态环境知识资源中心(Arid): 青土湖水面形成过程中荒漠植物群落结构的变化

Arid

	青土湖水面形成过程中荒漠植物群落结构的变化
其他题名	Change of Structure of Desert Plant Communities during Water Area Formation of the Qingtu Lake
	刘淑娟; 刘世增; 袁宏波; 马剑平; 刘虎俊
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2017
卷号	34 期号:1 页码:72-78
中文摘要	对已干涸50多年的青土湖进行人工输水,引起区域植物群落变化,对干旱区植被恢复研究具有参考意义。经过4 a的定位观测,应用空间分布指数及典范对应分析方法,分析青土湖岸的植物群落结构及与其环境的关系,结果表明:在人工湖形成过程中,距水面0 ~ 100 m范围的地下水位上升至3.50 m以上,地下芽植物数量剧增,呈集群分布; 50 ~ 200 m范围的植物种集群趋向均匀分布。青土湖输水是极端水干扰土壤水盐再分配,促成植物群落组成结构单一,是一种植物群落格局配置适应环境的变化。植物群落空间结构表现出随地下水位和土壤盐分的空间序列,不同生活型植物种的比例与其距水源距离相关,植物种变化影响植物群落空间结构。
英文摘要	The artificial water conveyance to the Qingtu Lake dried up for more than 50 years bring about the change of local vegetation communities,and it is of referring significance for researching the vegetation regeneration in arid area. After carrying out a four-year locating observation, the relationship between the plant community structure and its environment at the Qingtu lakeshore was analyzed using the spatial distribution index and canonical correspondence analysis. The results showed that,during the process of artificial lake formation, the distribution of plant species was gradually dispersed and differentiated. The number of cryptophytes in the areas 0 - 50 m from the water body was sharply increased,and the groundwater level in the areas 3.50 m from the water body was raised to about 3.50 m. The distribution of plant species was in clusters and trended to uniform in the areas 50 - 200 m from the water body. The water conveyance to the Qingtu Lake promoted a simple structure of the plant communities,and it brought about a distribution pattern of plant communities to adapt environment change. The spatial structure of plant communities was changed with the change of groundwater depth and soil water-salt regime,and the change of plant species changed the spatial structure of plant communities.
中文关键词	输水 ; 植物群落 ; 组成结构 ; 空间结构 ; 青土湖
英文关键词	water conveyance plant community composition structure spatial structure Qingtu Lake
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:5897493
来源机构	甘肃省治沙研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/235975
作者单位	甘肃省治沙研究所, 甘肃省荒漠化与风沙灾害防治重点实验室-省部共建国家重点实验室培育基地, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	刘淑娟,刘世增,袁宏波,等. 青土湖水面形成过程中荒漠植物群落结构的变化[J]. 甘肃省治沙研究所,2017,34(1):72-78.
APA	刘淑娟,刘世增,袁宏波,马剑平,&刘虎俊.(2017).青土湖水面形成过程中荒漠植物群落结构的变化.干旱区研究,34(1),72-78.
MLA	刘淑娟,et al."青土湖水面形成过程中荒漠植物群落结构的变化".干旱区研究 34.1(2017):72-78.