干旱区生态环境知识资源中心(Arid): Size distribution of the quasi-circular vegetation patches in the Yellow River Delta, China

Arid

DOI	10.1016/j.ecoinf.2022.101807
	Size distribution of the quasi-circular vegetation patches in the Yellow River Delta, China
	Liu, Qingsheng; Huang, Chong; Gao, Xing; Li, He; Liu, Gaohuan
通讯作者	Liu, QS ; Huang, C ; Gao, X
来源期刊	ECOLOGICAL INFORMATICS
ISSN	1574-9541
EISSN	1878-0512
出版年	2022
卷号	71
英文摘要	Recent empirical studies have suggested that the patch-size distribution of vegetation can be fitted by a power law, truncated power law, or lognormal model to provide explanatory mechanisms for vegetation pattern for-mation in arid and semiarid regions. However, contradictory results have been reported. Therefore, additional empirical studies are necessary to test the patch-size distribution of vegetation over several regions before it can be considered as an indicator for assessing the discontinuous transition of ecosystems and understanding the mechanisms of vegetation pattern formation. Analogous to arid and semiarid regions of the world, vegetation patterns are characterized by a two-phase mosaic composed of dense vegetation patches interspersed with areas of bare soil, referred to as quasi-circular vegetation patches (QVPs), in the Yellow River Delta (YRD), China. However, research on the patch-size distribution of the QVPs reflecting vegetation patterns and ecosystem functioning is lacking. To fill this gap, for the first time, we examined the patch-size distribution of the QVPs using the fused IKONOS high-spatial-resolution image and evaluated the statistical distributions that better fit the patch size data of the QVPs in the YRD. We found that a power law, truncated power law, or lognormal dis-tribution was not supported in the study area, whereas gamma distribution reasonably fits the size data of QVPs, implying that micro-depressions, combined with the water-limited and salinization environments had consid-erable effects on vegetation pattern formation. Our results provide helpful insights and suggest that further studies are needed to classify different types of QVPs. Additionally, more efficient approaches need to be used to fit the statistical distributions for elucidating the spatial vegetation patterns in the YRD.
英文关键词	Quasi -circular vegetation Patch -size distribution Power -law distribution Truncated -power -law distribution Lognormal distribution Gamma distribution Yellow River Delta
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000862173500002
WOS关键词	POWER-LAW DISTRIBUTIONS ; SUITABLE INDICATOR ; PATTERN-FORMATION ; DESERTIFICATION ; FACILITATION ; FEEDBACKS ; PATCHINESS ; DYNAMICS ; SHIFTS ; SOIL
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392368
推荐引用方式 GB/T 7714	Liu, Qingsheng,Huang, Chong,Gao, Xing,et al. Size distribution of the quasi-circular vegetation patches in the Yellow River Delta, China[J],2022,71.
APA	Liu, Qingsheng,Huang, Chong,Gao, Xing,Li, He,&Liu, Gaohuan.(2022).Size distribution of the quasi-circular vegetation patches in the Yellow River Delta, China.ECOLOGICAL INFORMATICS,71.
MLA	Liu, Qingsheng,et al."Size distribution of the quasi-circular vegetation patches in the Yellow River Delta, China".ECOLOGICAL INFORMATICS 71(2022).