干旱区生态环境知识资源中心(Arid): Fine-Scale Distribution Patterns of Phragmites australis Populations Across an Environmental Gradient in the Salt Marsh Wetland of Dunhuang, China

Arid

DOI	10.3390/su12041671
	Fine-Scale Distribution Patterns of Phragmites australis Populations Across an Environmental Gradient in the Salt Marsh Wetland of Dunhuang, China
	Jiao, Liang; Li, Fang; Liu, Xuerui; Wang, Shengjie; Zhou, Yi
通讯作者	Jiao, Liang
来源期刊	SUSTAINABILITY
EISSN	2071-1050
出版年	2020
卷号	12 期号:4
英文摘要	The spatial distribution pattern of plants often reflects their ecological adaptation strategy and is formed by their long-term interaction with environmental factors. In this paper, the clonal plant, Phragmites australis, was investigated across environmental gradients, including the wet zone, the transitional zone and the desert zone of the salt marsh wetland of Dunhuang, China. The characteristics and influencing factors of their fine-scale spatial distribution patterns were studied by point pattern analysis, redundancy analysis and simple linear regression. The results show that: (1) the spatial distribution pattern of Phragmites australis changes from aggregation to non-aggregation (random and regular distribution) from the wet zone to the desert zone. (2) The soil water content, pH and salinity all affect Phragmites australis' spatial distribution intensity. Simple linear regression reveals that the water content in each soil layer, the pH of the deep soil layer and the salinity of the surface and deep soil layers are the main soil conditions of Phragmites australis' spatial distribution pattern. (3) Phragmites australis' population characteristics and clonal characteristics also have significant effects on its spatial distribution intensity. Specifically, the intensity of its spatial distribution pattern is significantly positively correlated with its cover, frequency, density, height, biomass, node number, ramet number and stem diameter (p < 0.01), while it is significantly negatively correlated with its rhizome internode length, spacer length and branch angle (p < 0.01). This research clarified the relationship between the spatial distribution pattern of Phragmites australis with soil environmental factors, plant clonal characteristics and population characteristics. The results provide a theoretical basis for understanding the ecological adaptation mechanism of clonal plants and protecting the sustainability of fragile and sensitive inland river wetland ecosystems.
英文关键词	salt marsh wetland clonal plant Phragmites australis spatial point pattern ecosystem sustainability
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000522460200389
WOS关键词	SPATIAL-PATTERN ; CLONAL INTEGRATION ; MORPHOLOGICAL PLASTICITY ; PLANT-COMMUNITIES ; LEYMUS-CHINENSIS ; COMMON REED ; GRASSLAND ; GROWTH ; FOREST ; BIOACCUMULATION
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315628
作者单位	Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Peoples R China
推荐引用方式 GB/T 7714	Jiao, Liang,Li, Fang,Liu, Xuerui,et al. Fine-Scale Distribution Patterns of Phragmites australis Populations Across an Environmental Gradient in the Salt Marsh Wetland of Dunhuang, China[J],2020,12(4).
APA	Jiao, Liang,Li, Fang,Liu, Xuerui,Wang, Shengjie,&Zhou, Yi.(2020).Fine-Scale Distribution Patterns of Phragmites australis Populations Across an Environmental Gradient in the Salt Marsh Wetland of Dunhuang, China.SUSTAINABILITY,12(4).
MLA	Jiao, Liang,et al."Fine-Scale Distribution Patterns of Phragmites australis Populations Across an Environmental Gradient in the Salt Marsh Wetland of Dunhuang, China".SUSTAINABILITY 12.4(2020).