干旱区生态环境知识资源中心(Arid): 甘肃景泰北部干旱荒漠区封育沙地植物生态位研究

Arid

	甘肃景泰北部干旱荒漠区封育沙地植物生态位研究
其他题名	Plant niche of enclosed sandy land in arid desert area in northern Jingtai County of Gansu
	冯宜明 1; 杨萌萌 1; 祁效杰 2
来源期刊	草原与草坪
ISSN	1009-5500
出版年	2016
卷号	36 期号:5 页码:58-63
中文摘要	利用Levins生态位宽度公式和Pianka生态位重叠公式,对甘肃省景泰县北部沙生植被主要植物种在不同恢复方式下的生态位宽度和生态位重叠进行计测分析。结果表明:在自然恢复沙地灌木层中,沙蒿的生态位宽度最大,B_L值为0.966,其次是驴驴蒿,B_L值为0.935。人工+自然恢复沙地灌木层中,仍是沙蒿的生态位宽度最大,B_L值为0.962,其次是花棒和沙拐枣,B_L值分别为0.900和0.897;在自然恢复沙地草被层中,禾草的生态位宽度最大,其次是五星蒿,B_L值分别是0.989、0.959。人工+自然恢复沙地草本中,五星蒿的生态位宽度最大,其次是刺蓬,B_L值分别是0.952、0.942;自然恢复沙地灌木种群间生态位重叠最大的是荒漠锦鸡儿与白沙蒿,NO值为1。人工+自然恢复沙地灌木种群间生态位重叠最大的是柠条与沙拐枣,NO值为0.980;具有较宽生态位的五星蒿、刺蓬、禾草、沙米等草本间均有较大的生态位重叠,生态位宽度和生态位重叠之间不是直接的线形关系。
英文摘要	The study on the niche characteristics of main plant species in different vegetation types in desert area of northern Jingtai County,Gansu Province was conducted by using Levins index of niche breadth and Pianka index of niche overlap.The results showed that,In:,Artemisia arenaria had the widest niche breadth(B_L value 0.966) which was followed by Artemisia dalai-lamae(B_L value 0.935) on natural restoration sandy land in shrub layer.And Artemisia arenaria had the widest niche breadth(B_L value 0.962) which was followed by Hedysarum scoparium and Calligonum mongolicum(B_L value 0.900 and 0.897) on natural + artificial restoration sandy land.Grass had the widest niche breadth(B_L value 0.989) which was followed by Bassia dasyphylla(B_L value 0.959) on natural restoration sandy land in grass layer,And on natural+ artificial restoration sandy land,Bassia dasyphylla had the widest niche breadth(B_L value 0.952) which was followed by Salsola ruthenica(B_L value 0.942).Largest overlap value was between Caragana spp and Artemisia sphaerocephala on natural restoration sandy land in shrub layer(NO value 1).And on natural+ artificial restoration sandy land,the largest overlap value was between Caragana korshinskii and Calligonum mongolicum,(NO value 0.980).All those species with wider niche breadth(Bassia dasyphylla,grass,Salsola ruthenica and Agropyron cristatum) had larger niche overlap.The niche breadth and niche overlap did not show a linear relationship.
中文关键词	干旱荒漠区 ; 封育沙地 ; 生态位宽度 ; 生态位重叠
英文关键词	arid desert area enclosed sandy land niche breadth niche overlap
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:5852596
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234029
作者单位	1.甘肃省白龙江林业管理局林业科学研究所, 兰州, 甘肃 730070, 中国; 2.古浪县林业技术服务中心, 古浪, 甘肃 733100, 中国
推荐引用方式 GB/T 7714	冯宜明,杨萌萌,祁效杰. 甘肃景泰北部干旱荒漠区封育沙地植物生态位研究[J],2016,36(5):58-63.
APA	冯宜明,杨萌萌,&祁效杰.(2016).甘肃景泰北部干旱荒漠区封育沙地植物生态位研究.草原与草坪,36(5),58-63.
MLA	冯宜明,et al."甘肃景泰北部干旱荒漠区封育沙地植物生态位研究".草原与草坪 36.5(2016):58-63.