干旱区生态环境知识资源中心(Arid): 古尔班通古特沙漠南缘心叶驼绒藜种群更新的空间格局

Arid

	古尔班通古特沙漠南缘心叶驼绒藜种群更新的空间格局
其他题名	Spatial Pattern of Population Recruitment of C. ewersmanniana in South of Gurbantunggut Desert
	刘彤; 赵新俊; 贾亚敏; 崔运河; 骆郴; 魏鹏; 张元杭; 林海荣
ISSN	1000-694X
出版年	2008
卷号	28 期号:2 页码:258-265
中文摘要	心叶驼绒藜（C.ewersmanniana）是干旱区优质牧草和防风固沙植被的主要物种。在古尔班通古特沙漠南缘选择两个200 m*200 m具代表性样地,采用RipleysK（d）函数分析了心叶驼绒藜种群更新空间特征以及与群落梭梭（Haloxylon ammodendron）、琵琶柴（Reaumuria soongorica）、新疆绢蒿（Seriphidium kaschgaricum）等三种主要灌木物种间作用关系。发现两个样点心叶驼绒藜大株（繁殖株）的空间分布对后代以及整个种群的空间分布影响极大,两个样点心叶驼绒藜大株、中株均与幼株间呈不同尺度的正关联,全部植株以及幼株都与新疆绢蒿呈正关联,与梭梭呈负关联,与琵琶柴关联性在两个样点结果相反。分析认,为心叶驼绒藜种群更新对成株依赖性极强,空间扩展能力很低。在035 m范围内种群更新的空间自相关性明显。四种灌木空间分布关系除受各自生态位决定外,主要受水等环境因素作用。最后对心叶驼绒藜等生态恢复方法提出建议。
英文摘要	C.ewersmanniana is a kind of high-quality herbage in arid region,and the construction species of wind-sheltering and sand-fixing vegetation.In this paper,two representative samples of 200m 200m were set in south of Gurbantunggut desert.Ripley＇s K（d） function was used to determine the spatial pattern of population regeneration of C.ewersmanniana and its relationship with the three main shrub populations（H.ammodendron,R.soongorica,S.kaschgaricum）.In both samples,the spatial pattern of population recruitment was influenced greatly by the distribution of adult C.ewersmanniana.Adult and middle-aged C.ewersmanniana exhibited positive correlation with young C.ewersmanniana.C.ewersmanniana had positive correlation with S.kaschgaricum,but had negative correlation with H.ammodendron.Its correlation with R.soongorica was opposite in the two samples.We concluded that the population recruitment of C.ewersmanniana depended severely on adult plants.The spatial autocorrelation of its population recruitment was obvious within 30 m.This spatial autocorrelation was affected greatly by the environment and had weak ability to expand.In addition,the growth of four shrubs was determined by niche of each species,and was influenced greatly by water and other environmental factors.In the end,suggestion for ecological restoration of shrubs including C.ewersmanniana was raised.
中文关键词	绿洲与沙漠过渡带 ; 牧草 ; 点格局分析 ; 空间自相关 ; 种群更新
英文关键词	oasis-desert ecotone herbage point pattern analysis spatial autocorrelation population recruitment
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:3222877
来源机构	石河子大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223119
作者单位	石河子大学, 新疆生产建设兵团绿洲生态农业重点实验室, 石河子, 新疆 832003, 中国
推荐引用方式 GB/T 7714	刘彤,赵新俊,贾亚敏,等. 古尔班通古特沙漠南缘心叶驼绒藜种群更新的空间格局[J]. 石河子大学,2008,28(2):258-265.
APA	刘彤.,赵新俊.,贾亚敏.,崔运河.,骆郴.,...&林海荣.(2008).古尔班通古特沙漠南缘心叶驼绒藜种群更新的空间格局.,28(2),258-265.
MLA	刘彤,et al."古尔班通古特沙漠南缘心叶驼绒藜种群更新的空间格局".28.2(2008):258-265.