干旱区生态环境知识资源中心(Arid): A comparison of riparian vegetation sampling methods along a large, regulated river

Arid

DOI	10.1002/rra.3440
	A comparison of riparian vegetation sampling methods along a large, regulated river
	Palmquist, Emily C.1; Sterner, Sarah A.1; Ralston, Barbara E.2
通讯作者	Palmquist, Emily C.
来源期刊	RIVER RESEARCH AND APPLICATIONS
ISSN	1535-1459
EISSN	1535-1467
出版年	2019
卷号	35 期号:6 页码:759-767
英文摘要	Monitoring riparian vegetation cover and species richness is an important component of assessing change and understanding ecosystem processes. Vegetation sampling methods determined to be the best option in other ecosystems (e.g., desert grasslands and arctic tundra) may not be the best option in multilayered, species rich, heterogeneous riparian vegetation. This study examines the strengths and weaknesses of two common vegetation sampling methods, line-point intercept and ocular quadrat estimates. Permutational analysis of variance analyses indicate that cover estimates among observers did not differ significantly for either line-point intercept or ocular quadrat estimates. Line-point intercept cover estimates resulted in lower coefficient of variation among observers than ocular quadrat estimates, but the ocular quadrat estimates recorded significantly more species. Line-point estimates of cover were generally larger than ocular quadrat estimates. Ocular quadrat estimates are appropriate when assessment of richness is important, in areas with heterogeneous geomorphology and hydrology where fine-scale measurements are most useful, and in areas where continuous sampling transects are impracticable. Line-point intercept estimates are useful when minimum variation among observers is necessary, continuous transects are logical and practicable for the sampling area, woody cover does not present a logistical complication, and species richness is not a priority.
英文关键词	data variability line-point intercept long-term monitoring ocular quadrat estimates riparian vegetation species richness vegetation sampling methods
类型	Article
语种	英语
国家	USA
收录类别	SCI-E
WOS记录号	WOS:000475987300019
WOS关键词	FUNCTIONAL TRAITS ; COLORADO RIVER ; GRAND-CANYON ; RESTORATION ; COMMUNITIES ; RICHNESS ; ARIZONA ; STREAMS ; PLANTS
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
来源机构	United States Geological Survey
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218520
作者单位	1.US Geol Survey, Grand Canyon Monitoring & Res Ctr, Southwest Biol Sci Ctr, 2255 N Gemini Dr, Flagstaff, AZ 86001 USA; 2.US Geol Survey, Off Sci Qual & Integr, Flagstaff, AZ 86001 USA
推荐引用方式 GB/T 7714	Palmquist, Emily C.,Sterner, Sarah A.,Ralston, Barbara E.. A comparison of riparian vegetation sampling methods along a large, regulated river[J]. United States Geological Survey,2019,35(6):759-767.
APA	Palmquist, Emily C.,Sterner, Sarah A.,&Ralston, Barbara E..(2019).A comparison of riparian vegetation sampling methods along a large, regulated river.RIVER RESEARCH AND APPLICATIONS,35(6),759-767.
MLA	Palmquist, Emily C.,et al."A comparison of riparian vegetation sampling methods along a large, regulated river".RIVER RESEARCH AND APPLICATIONS 35.6(2019):759-767.