干旱区生态环境知识资源中心(Arid): 人工调水对额济纳胡杨荒漠河岸林繁殖的影响

Arid

	人工调水对额济纳胡杨荒漠河岸林繁殖的影响
其他题名	Artificial water diversion effects of Heihe River on Populus euphratica Oliv. desert riparian forests in Ejina
	赵文智1 ; 常学礼 2; 李秋艳 1
来源期刊	生态学报
ISSN	1000-0933
出版年	2005
卷号	25 期号:8 页码:1987-1993
中文摘要	研究了围封禁牧条件下人工调控黑河水文过程对额济纳胡杨荒漠河岸林繁殖的影响。结果表明：在分水实施的3a中，胡杨主要靠根蘖繁殖更新，种子繁殖几乎不存在。在没有放牧干扰的条件下，不同年份之间林窗内胡杨的根蘖繁殖差异明显，胡杨幼苗个体密度平均为（213．9112．5）株／100m^2，其中1龄为（27．518．8）株／100m^2，2龄为（113．867．7）株／100m^2，3龄为（71．O73．9）株／100m^2。胡杨幼苗的丛密度平均为（108．356．0）丛／100^2。，其中1龄为（19．2土13．9）丛／100m^2，2龄为（59．037．8）丛／100m^2，3龄为（29．822．8）丛／100m^2。这种差异与当年的生态水文条件有关。划分的整体、大林窗、小林窗3种类型中，大林窗内2龄胡杨幼苗的根蘖繁殖更新受到了距样方最近和最远母树距离的影响。在生态水文条件较好的年份（2龄苗对应于2002年），在距母树较远的地方根蘖繁殖最容易发生。在其它林窗中，胡杨根蘖繁殖主要受林窗生境如环样方母树株数（Tn）、距样方最近母树距离（Nd）、距样方最远母树距离（Fd）和林窗面积（Ga）等因子的综合影响，任何一个因子的单独影响都不显著。总之，本研究的初步结论是黑河分水工程实施对胡杨的繁殖更新无疑是有利的，但前提是消除放牧等干扰因素的影响。[著者文摘]
英文摘要	In this paper, we researched the effect of artificial water diversion on the reproduction of Populus euphratica Oliv. under ungrazed condition in Ejina National Nature Reserves, using Pearson correlative analysis and regression analysis. The results showed that Populus euphratica Oliv. mainly regenerate by means of sprouting, and almost no seedling reproduction in the three years of water diversion. Under the ungrazed conditions, there＇s significant difference for sprouting reproduction in different years. The average individual density of young Populus euphratica Oliv. is 213.9 112.5 ind./100m^2, in which density of one-year Populus euphratica Oliv. is 27.5 18. 8 ind./100m^2, density of two-year young Populus euphratica Oliv. is 113.867.7 ind./100m^2, density of three-year Populus euphratica Oliv. is 71.073.9 ind./100m^2. The mean cluster density of young Populus euphratica Oliv. is 108.356.0 clu./100m^2, in which the cluster density of young Populus euphratica Oily. of one year, two-year, three-year are 19.2 13.9 clu./100m^2, 59.0 37.8 clu./100m^2, 29.8 22.8 clu./100m^2, respectively. The difference is related with the eco-hydrological condition in the current year. The sprouting reproduction of young Populus euphratica Oliv. of two years is influenced by both the nearest plot and the farthest mother tree in big gap, one of the three types of population, big gap and small gap divided in this paper. In the year of better eeo-hydrologieal condition （two-year Populus euphratica Oliv. corresponds to 2002）, it is most liable to sprouting reproduction farthest from the mother tree. In other gaps, the sprouting reproduction mainly influenced by gap habitats such as the mother tree number around the plots （Tn）, the nearest mother tree distance from plot （Nd）, the farthest mother tree distance from plot （Fd）, and gap aria （Ga）. However, any factor is insignificantly affected alone. So the preliminary conclusion can be drawn that it is useful for the reproduction of Populus euphratica Oliv. after carrying Heihe River division project into effect, but the premise is to relief the disturbance especially grazing.
中文关键词	黑河 ; 分水 ; 胡杨 ; 繁殖 ; 林窗
英文关键词	Heihe River water division Populus euphratica Oliv. reproduction gap
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:2102067
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/206541
作者单位	1.中国科学院寒区旱区环境与工程研究所、中国生态系统研究网络, 临泽内陆河流域综合研究站, 兰州, 甘肃 730000, 中国; 2.山东烟台师范学院地理旅游系, 烟台, 山东 264025, 中国
推荐引用方式 GB/T 7714	赵文智,常学礼,李秋艳. 人工调水对额济纳胡杨荒漠河岸林繁殖的影响[J]. 中国科学院西北生态环境资源研究院,2005,25(8):1987-1993.
APA	赵文智,常学礼,&李秋艳.(2005).人工调水对额济纳胡杨荒漠河岸林繁殖的影响.生态学报,25(8),1987-1993.
MLA	赵文智,et al."人工调水对额济纳胡杨荒漠河岸林繁殖的影响".生态学报 25.8(2005):1987-1993.