干旱区生态环境知识资源中心(Arid): 腾格里沙漠东南缘白刺种群性状对沙埋的响应

Arid

	腾格里沙漠东南缘白刺种群性状对沙埋的响应
其他题名	Responses of Nitraria tangutorum population characteristics to sand burial at southeastern fringe of Tengger Desert
	贾晓红 1; 李新荣1 ; 李元寿 2; 周玉燕 1
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2011
卷号	30 期号:9 页码:1851-1857
中文摘要	运用实验生态学和数量生态学方法，研究了腾格里沙漠东南不同沙埋程度的白刺(Nitraria tangutorum)种群特征，并就各特征与沙埋深度的关系进行了分析。结果表明:强沙埋条件(湖盆低地)白刺种群特征均值都大于弱沙埋条件(山前冲积扇)，但白刺种群各特征变异却是强沙埋条件小于弱沙埋条件;除弱沙埋条件白刺种群密度外，其他各性状都与沙埋有着显著相关关系;强沙埋条件的种群各性状发育最适沙埋深度均大于弱沙埋条件下;不论沙埋深度强弱和最适沙埋深度的高低，白刺种群各性状发育均受最适沙埋深度制约;低于最适沙埋深度，沙埋深度增加促进种群性状发育，高于最适沙埋深度，沙埋深度增加抑制种群性状发育。白刺种群各性状对沙埋深度的响应主要体现在高生长和生物量上;盖度和密度的发育不仅受沙埋的影响，更主要是受沙埋深度影响下的其他资源特别是水分的限制。
英文摘要	By using the methods of experimental ecology and quantitative ecology，this paper studied the Nitraria tangutorum population characteristics under different sand burial depth at southeastern fringe of Tengger Desert，and analyzed the relationships between the population height，coverage，density，and biomass and the depth of sand burial．It was shown that under strong sand burial(at lacustrine basin lowland)，the mean values of N．tangutorum population coverage，density，height，and biomass were higher than those under weak sand buried(at alluvial fan)，but the coefficient of variation was in adverse．There existed significant correlations between sand burial and the population characteristics except the population density under weak sand burial．The optimum sand burial depth for the development of the population characteristics was higher under strong than under weak sand burial．Whether the sand burial was strong or weak，and whether the optimal sand burial depth was high or low，the development of the population characteristics was all restricted by the optimal sand burial depth．The increase of sand burial depth promoted the development of the population characteristics when the sand burial depth was lower than the optimal depth，but was in adverse when the depth was higher than the optimal．The responses of the population characteristics to sand burial depth were mainly manifested in the height growth and biomass．The development of population coverage and density was not only affected by sand burial，and more importantly，also affected by other factors，especially soil moisture．
中文关键词	白刺 ; 种群特征 ; 沙埋 ; 腾格里沙漠
英文关键词	Nitraria tangutorum population characteristics sand burial Tengger Desert
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ECOLOGY
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:4296875
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/2XILL650/226995
作者单位	1.中国科学院寒区旱区环境与工程研究所, 中国科学院沙坡头沙漠试验研究站, 兰州, 甘肃 730000, 中国; 2.中国气象科学研究院, 北京 100081, 中国
推荐引用方式 GB/T 7714	贾晓红,李新荣,李元寿,等. 腾格里沙漠东南缘白刺种群性状对沙埋的响应[J]. 中国科学院西北生态环境资源研究院,2011,30(9):1851-1857.
APA	贾晓红,李新荣,李元寿,&周玉燕.(2011).腾格里沙漠东南缘白刺种群性状对沙埋的响应.生态学杂志,30(9),1851-1857.
MLA	贾晓红,et al."腾格里沙漠东南缘白刺种群性状对沙埋的响应".生态学杂志 30.9(2011):1851-1857.