干旱区生态环境知识资源中心(Arid): 内蒙古不同草地类型群落物种多度分布格局分析

Arid

	内蒙古不同草地类型群落物种多度分布格局分析
其他题名	Analysis on the Species-Abundance Distribution Patterns of Different Grassland Communities in Inner Mongolia
	赵天启; 古琛; 王亚婷; 王玺; 贾丽欣; 杜宇凡; 陈万杰; 王舒新; 赵萌莉
来源期刊	中国草地学报
ISSN	1673-5021
出版年	2017
卷号	39 期号:5 页码:68-75
中文摘要	以内蒙古三种不同草地类型为研究对象,通过野外植被调查,按照不同功能群将草地植物进行划分,并应用生态位重叠模型(ONM)、生态位优先占领模型(NPM)、断棍模型(BSM)、优势优先模型(DPM)和随机分配模型(RAM)与群落植物物种进行拟合,按照拟合程度分析草甸草原、典型草原和荒漠草原三种不同草地类型植物群落物种多度分布格局。结果表明:断棍模型可以较好地拟合荒漠草原(chi~2=224.18,AIC=277.05,BIC=281.16)和草甸草原(chi~2=186.57,AIC=303.13,BIC=307.53)植物群落植物多度格局,而典型草原的群落植物真实多度与生态位优先占领模型(chi~2=22.29,AIC=246.17,BIC=250.27)吻合度高。在不同草地群落中,生长季降水量的多少对多度格局起关键作用,生长季明显的降水量变化会对草地群落造成影响,但建群种的优势地位不会发生改变。
英文摘要	Based on three different grassland types in Inner Mongolia, grassland plants were divided according to different functional groups, and niche overlap model(ONM), the niche priority occupation model(NPM), broken rod model(BSM), advantage priority model(DPM) and random allocation model(RAM) were used to fit the community plant species, and three different grassland types of meadow grassland, typical grassland and desert grassland were analyzed according to the degree of fitting. The aim of this study was to study the relationship between species of different grassland types and to explore the true distribution of plant communities in different grassland types by using mathematical models with different ecological significance. The results showed that the model of plant community could be well patterned in desert grassland(chi~2 = 224.18, AIC = 277.05, BIC = 281.16) and meadow steppe(chi~2 = 186.57, AIC = 303.13, BIC = 307.53), and the true abundance of the typical grassland community was higher than that of the niche priority occupation model(chi~2 = 22.29, AIC = 246.17, BIC = 250.27). In different grassland communities, the number of precipitation in the growing season plays a key role in the multi - degree pattern. The obvious precipitation change in the growing season will affect the grassland community, but the dominant position of the cultivated species will not change.
中文关键词	不同草地类型 ; 物种多度分布格局 ; 功能群
英文关键词	Different grassland types Species-abundance distribution pattern Functional groups
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6092351
来源机构	内蒙古农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236995
作者单位	内蒙古农业大学草原与资源环境学院, 呼和浩特, 内蒙古 010019, 中国
推荐引用方式 GB/T 7714	赵天启,古琛,王亚婷,等. 内蒙古不同草地类型群落物种多度分布格局分析[J]. 内蒙古农业大学,2017,39(5):68-75.
APA	赵天启.,古琛.,王亚婷.,王玺.,贾丽欣.,...&赵萌莉.(2017).内蒙古不同草地类型群落物种多度分布格局分析.中国草地学报,39(5),68-75.
MLA	赵天启,et al."内蒙古不同草地类型群落物种多度分布格局分析".中国草地学报 39.5(2017):68-75.