干旱区生态环境知识资源中心(Arid): 民勤绿洲外围不同立地类型黑果枸杞种群分布格局

Arid

	民勤绿洲外围不同立地类型黑果枸杞种群分布格局
其他题名	Spatial Distribution Pattern of Lycium ruthenicum in Different Site Types in Periphery of the Minqin Oasis
	马俊梅 1; 郭春秀 1; 何芳兰 2; 金红喜 2; 赵鹏 1; 满多清 2; 张锦春 2
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2019
卷号	36 期号:1 页码:122-130
中文摘要	通过测定石羊河下游民勤绿洲外围4个不同立地类型黑果枸杞群落植被特征和黑果枸杞株数、株高、冠幅等生物学特征,以及黑果枸杞分布格局的点坐标,采用空间点格局分析方法中的Ripley’s K函数,分析了民勤绿洲外围不同立地类型上黑果枸杞空间分布格局。结果表明: ① 4个不同立地类型中植被物种数为:砾石地﹥盐碱地﹥固定或半固定沙丘地、覆沙地,植物群落结构比较简单,存在多个科单属单种现象。②黑果枸杞株数在盐碱地中最多,覆沙地次之,固定或半固定沙丘地和砾石地中最少;而平均株高由高到低依次是固定或半固定沙丘地、盐碱地、覆沙地、砾石地;平均冠幅分布与平均株高类似。③在4个样地中,固定或半固定沙丘地和砾石地中的黑果枸杞呈现聚集分布;覆沙地中,黑果枸杞在较小尺度(0. 2 ~ 0. 5 m)呈现聚集分布,在较大尺度(1. 5 ~ 2. 5 m)呈现随机分布;盐碱地中,黑果枸杞种群表现为完全的随机分布。
英文摘要	The purposes of this study were to investigate the community characteristics and biological characteristics of Lycium ruthenicum in different site types in periphery of the Minqin Oasis. The biological characteristics of L. ruthenicum community included the plant number,height,canopy and distribution pattern in four different site types,and the Ripley’s K function in the spatial point pattern analysis method was used to analyze the spatial distribution pattern of L. ruthenicum. The results are as follows: ① Number of plant species in the four site types was in an order of gravel land > saline and alkaline land > fixed or semi-fixed desert and sandy land. Structure of the plant community was relatively simple; ② Number of L. ruthenicum plants was the most in the saline and alkaline land, then in the sandy land,and that in the gravel land and fixed or semi-fixed desert were the least. The average plant height was in an order of the fixed or semi-fixed desert > saline and alkaline land > sandy and gravel land, and the distribution of average canopy was similar to that of average plant height; ③ In the four plots,L. ruthenicum plants were distributed in a clustering way in the fixed or semi-fixed desert and gravel land; in the sandy desert, however, they were distributed in a clustering way on a small scale (0. 2 - 0. 5 m) but in a random way on a larger scale (1. 5 - 2. 5 m) ; in saline and alkaline land, they were distributed in a completely random way.
中文关键词	立地类型 ; 黑果枸杞 ; 群落特征 ; 分布格局 ; Ripley’s K 函数 ; 民勤绿洲
英文关键词	site type Lycium ruthenicum community distribution pattern Ripley’s K function Minqin Oasis
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:6414271
来源机构	甘肃省治沙研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/239131
作者单位	1.甘肃省荒漠化与风沙灾害防治国家重点实验室;;甘肃省治沙研究所, 甘肃省荒漠化与风沙灾害防治国家重点实验室;;, 武威;;兰州, 甘肃;;甘肃 733000;;730000, 中国; 2.甘肃省治沙研究所, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	马俊梅,郭春秀,何芳兰,等. 民勤绿洲外围不同立地类型黑果枸杞种群分布格局[J]. 甘肃省治沙研究所,2019,36(1):122-130.
APA	马俊梅.,郭春秀.,何芳兰.,金红喜.,赵鹏.,...&张锦春.(2019).民勤绿洲外围不同立地类型黑果枸杞种群分布格局.干旱区研究,36(1),122-130.
MLA	马俊梅,et al."民勤绿洲外围不同立地类型黑果枸杞种群分布格局".干旱区研究 36.1(2019):122-130.