干旱区生态环境知识资源中心(Arid): 阿拉善高原红砂(Reaumuria songarica)种群空间分布格局

Arid

	阿拉善高原红砂(Reaumuria songarica)种群空间分布格局
其他题名	Spatial distribution pattern of Reaumuria songarica population in Alashan Plateau
	孙艳霞; 杨九艳; 乔宜青; 郭超莉; 邵奕铭; 王健宇
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2020
卷号	40 期号:1 页码:105-115
中文摘要	为揭示阿拉善高原红砂(Reaumuria songarica)种群扩散、生长特征和空间分布规律,采用大小结构分析法和 Ripley's K函数对湿润梯度下的红砂种群结构、空间分布格局及各龄级间空间关联性进行了研究。结果表明:红砂种群结构以稳定型为主,其次是衰退型,幼龄植株极少,种群更新受限;随气候湿润度的降低,红砂种群及各龄级空间分布格局由多样化向单一形式转变,即聚集分布向随机分布或均匀分布类型变为主要呈随机分布类型,在较湿润地区,各龄级间的空间关联性相对复杂,总体上随尺度的增大表现正关联无关联负关联,在较干旱地区,大体上表现为无关联。红砂是阿拉善高原的主要建群种,在生态恢复的过程中应遵循自然生长和分布规律,通过最优化的人工抚育和保护提高植株成活率和繁殖率,充分发挥红砂种群防风固沙的能力。
英文摘要	In order to reveal the population spread,growth characteristics and spatial distribution law of Reaumuria songarica in Alashan Plateau,the size structure analysis method and Ripley's K function were used to study the population structure,spatial distribution pattern and spatial correlation of R.songarica various under different wetness gradients.T he results showed that the population of R.songarica was dominated by stable population,followed by declining population.T he young plants were rare and the population renewal was limited.With the decrease of climate humidity,the spatial distribution pattern of R.songarica population and age class changes from diversification to single form,that is,the aggregation distribution changes to a random distribution or a uniform distribution type to a predominantly random distribution type.In the humid regions,the spatial correlation between the age classes is relatively complex.Generally speaking,with the increase of scale,it is characterized bypositive associationno correlationnegative correlation.In the more arid regions,there is generally no correlation.R.songarica is one of the most important species in the Alashan Plateau.In the process of ecological restoration,it should follow the laws of natural growth and distribution,improving the survival rate and reproduction rate of plants through optimized artificial tending and protection,and give full play to the ability of R.songarica population to prevent wind and sand.
中文关键词	阿拉善高原 ; 空间分布格局
英文关键词	红砂(Reaumuria songarica) Alashan Plateau Reaumuria songarica population spatial distribution pattern
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Plant Sciences
CSCD记录号	CSCD:6659372
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/354069
作者单位	孙艳霞, 内蒙古大学生态与环境学院, 呼和浩特, 内蒙古 010021, 中国.; 乔宜青, 内蒙古大学生态与环境学院, 呼和浩特, 内蒙古 010021, 中国.; 郭超莉, 内蒙古大学生态与环境学院, 呼和浩特, 内蒙古 010021, 中国.; 邵奕铭, 内蒙古大学生态与环境学院, 呼和浩特, 内蒙古 010021, 中国.; 王健宇, 内蒙古大学生态与环境学院, 呼和浩特, 内蒙古 010021, 中国.; 杨九艳, 内蒙古大学生态与环境学院;;内蒙古大学, ;;蒙古高原生态学与资源利用教育部重点实验室;;内蒙古省部共建草地生态学国家重点实验室培育基地, 呼和浩特;;呼和浩特, 内蒙古;;内蒙古 010021;;010021, 中国.
推荐引用方式 GB/T 7714	孙艳霞,杨九艳,乔宜青,等. 阿拉善高原红砂(Reaumuria songarica)种群空间分布格局[J],2020,40(1):105-115.
APA	孙艳霞,杨九艳,乔宜青,郭超莉,邵奕铭,&王健宇.(2020).阿拉善高原红砂(Reaumuria songarica)种群空间分布格局.中国沙漠,40(1),105-115.
MLA	孙艳霞,et al."阿拉善高原红砂(Reaumuria songarica)种群空间分布格局".中国沙漠 40.1(2020):105-115.