干旱区生态环境知识资源中心(Arid): No evidence for cottonwood forest decline along a flow-augmented western US river

Arid

DOI	10.1002/rra.4151
	No evidence for cottonwood forest decline along a flow-augmented western US river
	Christensen, Cetan; Katz, Gabrielle; Friedman, Jonathan; Redmond, Miranda D.; Norton, Andrew
通讯作者	Katz, G
来源期刊	RIVER RESEARCH AND APPLICATIONS
ISSN	1535-1459
EISSN	1535-1467
出版年	2023
卷号	39 期号:8 页码:1602-1615
英文摘要	In contrast to many other arid region rivers, streamflow in the South Platte River is heavily augmented by trans-basin water imports and irrigation return flows. Hydrological changes began in the 1880s, resulting in channel narrowing and the development of a continuous Populus-Salix forest by the mid-twentieth century. We assessed the composition, structure and regeneration status of the riparian forest and identified environmental variables affecting annual Populus deltoides tree growth. We sampled forest structure at four sites in 2015, and conducted dendroecological analysis at seven additional sites in 2019. The riparian forest was dominated by P. deltoides, which occurred at all sites, comprising 79% of total tree basal area and 62% of total tree density. Age structure data indicated ongoing though episodic recruitment of P. deltoides, at least over the past similar to 130 years. We tested 14 linear mixed effects models to describe the effect of climate and streamflow on individual tree growth (modeled as the log of BAI, n = 237 trees). The most parsimonious model selected with AICc explained 28.6% of BAI variability, and included hydrology and climate factors during the growing season (i.e., June-August streamflow, June-July PDSI), some aspects of off-season (i.e., previous November and March) streamflow, along with tree age and study site effects. The riparian forest developed in response to, and has been maintained by, current climate conditions and water management regimes. It may be negatively affected by future climate change and increased urban water demand in the basin.
英文关键词	dendroecology Fraxinus Populus riparian forest South Platte River Ulmus
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000989621300001
WOS关键词	MISSOURI RIVER ; PLATTE RIVER ; ECOLOGICAL CONSEQUENCES ; RIPARIAN COTTONWOODS ; BASIC PRINCIPLES ; WATER RELATIONS ; GREAT-PLAINS ; GREEN ASH ; GROWTH ; CLIMATE
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398444
推荐引用方式 GB/T 7714	Christensen, Cetan,Katz, Gabrielle,Friedman, Jonathan,et al. No evidence for cottonwood forest decline along a flow-augmented western US river[J],2023,39(8):1602-1615.
APA	Christensen, Cetan,Katz, Gabrielle,Friedman, Jonathan,Redmond, Miranda D.,&Norton, Andrew.(2023).No evidence for cottonwood forest decline along a flow-augmented western US river.RIVER RESEARCH AND APPLICATIONS,39(8),1602-1615.
MLA	Christensen, Cetan,et al."No evidence for cottonwood forest decline along a flow-augmented western US river".RIVER RESEARCH AND APPLICATIONS 39.8(2023):1602-1615.