干旱区生态环境知识资源中心(Arid): 河水漫溢对塔里木河下游荒漠河岸林地表植被与土壤种子库的影响

Arid

	河水漫溢对塔里木河下游荒漠河岸林地表植被与土壤种子库的影响
其他题名	Characteristics of standing vegetation and soil seed bank in desert riparian forest in lower reaches of Tarim River under effects of river-flooding
	李吉玫 1; 徐海量1 ; 张占江 2; 叶茂 3; 王增如 1; 李媛 1
ISSN	1001-9332
出版年	2008
卷号	19 期号:8 页码:1651-1657
中文摘要	采用种子萌发法,研究了河水漫溢对塔里木河下游荒漠河岸林地表植被与土壤种子库的影响.结果表明:塔里木河下游漫溢区地表植被分属8科13属14种,非漫溢区为10科21属26种植物;与非漫溢区相比,漫溢区地表植被中出现了一些浅根系和喜湿的草本植物;漫溢区单位面积物种数、植被盖度、植株密度、物种多样性指数和丰富度指数均比非漫溢区有明显增加.漫溢区土壤种子库中有物种19种,比非漫溢区增加了5种;漫溢区土壤种子库总密度比非漫溢区增加了3.94倍;与非漫溢区相比,漫溢区1年生草本植物种子的比例增加了23.07%,而灌木植物种子比例减少了20.99%;多年生草本的变化则不明显;河水漫溢提高了土壤种子库的生物多样性.漫溢区和非漫溢区土壤种子库与地表植被的共有物种分别为18和9种,土壤种子库与地表植被的相似性系数分别为0.842和0.667.
英文摘要	An investigation was made on the standing vegetation and soil seed bank in desert riparian forest in lower reaches of Tarim River under effects of river-flooding.The results showed that the standing vegetation in non-flooded and flooded sites was composed of 14 species in 13 genera of 8 families,and 26 species in 21 genera of 10 families,respectively,and some shallow-rooted and hygrophilous species were recorded in flooded sites.The indices per unit area plant species number,vegetative coverage,plant density,and species diversity of the vegetation were all higher in flooded than in non-flooded sites.The species number of the soil seed bank in flooded sites was 19,with 5 species more than that in non-flooded sites,and the seed bank density in flooded sites was 2.94 times higher than that in non-flooded sites.The proportion of annual herbaceous species seeds in flooded sites increased by 23.07% while that of shrub species seeds decreased by 20.99%,compared with those in non-flooded sites,and the proportion of perennial herbaceous species seeds had less difference between these two sites.River-flooding increased the diversity of soil seed bank.In flooded and non-flooded sites,the co-occurrence species in seed bank and in standing vegetation were 18 and 9,with the similarity coefficients of species composition between soil seed bank and standing vegetation being 0.842 and 0.667,respectively.
中文关键词	河水漫溢 ; 土壤种子库 ; 地表植被 ; 荒漠河岸林
英文关键词	river-flooding soil seed bank standing vegetation desert riparian forest
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:3344246
来源机构	中国科学院新疆生态与地理研究所 ; 新疆农业大学 ; 新疆师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223001
作者单位	1.中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国; 2.新疆农业大学农学院, 乌鲁木齐, 新疆 830052, 中国; 3.新疆师范大学地球科学与旅游学院, 乌鲁木齐, 新疆 830054, 中国
推荐引用方式 GB/T 7714	李吉玫,徐海量,张占江,等. 河水漫溢对塔里木河下游荒漠河岸林地表植被与土壤种子库的影响[J]. 中国科学院新疆生态与地理研究所, 新疆农业大学, 新疆师范大学,2008,19(8):1651-1657.
APA	李吉玫,徐海量,张占江,叶茂,王增如,&李媛.(2008).河水漫溢对塔里木河下游荒漠河岸林地表植被与土壤种子库的影响.,19(8),1651-1657.
MLA	李吉玫,et al."河水漫溢对塔里木河下游荒漠河岸林地表植被与土壤种子库的影响".19.8(2008):1651-1657.