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These data were collected as part of a methodologial comparison for collecting riparian vegetation data. Two common methods for collecting vegetation data were used: line-point intercept and 1m2 ocular quadrats (visual cover estimates). At each site and transect, both methods were used to collect cover and composition data by four different observers. The same transects and quadrats were utilized for both methods and all observers. Field data collected included percent cover for total living foliar cover, each plant species encountered, litter, dead plant material that is still standing, and ground cover features (biological soil crust, rock, sand, and fine soil particles). Line-point intercept data were collected...
Tags: Arizona,
Botany,
Colorado River,
Ecology,
Geography, All tags...
Glen Canyon Dam,
Glen Canyon National Recreation Area,
Grand Canyon,
Information Sciences,
Lees Ferry,
USGS Science Data Catalog (SDC),
biological sampling,
biota,
field sampling,
line-point intercept,
northern Arizona,
ocular quadrat,
riparian ecosystems,
riparian environments,
riparian vegetation,
vegetation,
vegetation sampling methods, Fewer tags
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These data consist of species relative cover, percent cover of dead plant material, percent cover of soil and rock, and a variety of broad - and local- scale environmental variables. These data relate to sample sites along the Colorado River through Grand Canyon between Lees Ferry and river mile 245. The plant and ground cover data included here were originally collected as a part of annual vegetation monitoring by Grand Canyon Monitoring and Research Center. Environmental variables were either recorded in the field or obtained through other data sources. Species and ground cover data were collected in August and September 2014 at 96 randomly selected sample sites that were approximately evenly distributed along...
Types: Citation;
Tags: American Southwest,
Arizona,
Colorado River,
Environmental variables,
Grand Canyon, All tags...
Landscape ecology,
Riparian vegetation,
Southwestern United States,
USGS Science Data Catalog (SDC),
United States,
Vegetation composition, Fewer tags
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These data were compiled for monitoring riparian vegetation change along the Colorado River. This file contains data recorded at 42 sandbars between Lees Ferry and Diamond Creek, AZ, which are sampled for both geomorphic and vegetation change annually. Field data contained here were collected from 2012 to 2016 in September and October of each year. Plant species cover values in 5441 1m^2 quadrat frames, locations and elevations of those sampling frames, slope and aspect, sample dates, temperature and precipitation data, and flood frequency parameters were either recorded in the field or calculated. Annual and seasonal climate variables were estimated from eight weather stations distributed along the river corridor...
Tags: Arizona,
Botany,
Climatology,
Colorado River,
Diamond Creek, All tags...
Ecology,
Geography,
Grand Canyon,
Information Sciences,
Lees Ferry,
USGS Science Data Catalog (SDC),
United States,
Water Resources,
annual climate variable,
aspect,
average daily peak flow,
depth to water table,
discharge,
elevation,
elevation above river stage,
flood frequency parameters,
inundation,
maximum annual temperature,
maximum inundation depth,
mean annual humidity,
mean annual winter precipitation,
mean inundation depth,
minimum annual temperature,
minimum inundation depth,
monitoring,
monsoon precipitation,
plant species,
precipitation,
quadrat,
riparian vegetation,
river corridor,
sandbars,
seasonal climate variable,
slope,
species cover,
temperature,
vegetation change,
weather stations, Fewer tags
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These data were compiled to assess potential impacts of altered operations of Glen Canyon Dam on riparian plant resources. Objective(s) of our study were to quantify potential responses of specific vegetation metrics. These data represent predicted changes in vegetation metrics based on the data in the Interim Guidelines and LTEMP_SEIS folders. These data were collected in Grand Canyon and Glen Canyon below the dam from 2014-2019. These data were collected by USGS SBSC scientists through ground-based vegetation surveys. These data can be used to predict responses of vegetation metrics only to the specific alterations to dam operations that were simulated.
Tags: Arizona,
Botany,
Coconino County,
Colorado River,
Ecology, All tags...
Geography,
Glen Canyon,
Glen Canyon Dam,
Grand Canyon,
Information Sciences,
Lake Powell,
USGS Science Data Catalog (SDC),
Water Resources,
biodiversity,
biogeography,
biological and physical processes,
biota,
data release,
ecology,
environment,
inlandWaters,
modeling,
natural resources,
organisms,
population and community ecology,
reports, Fewer tags
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The focus of the study, associated with these data, is a 540-km2 area at the low-elevation northern end of the 1460-km2 Milford Flat Fire in west-central Utah, and includes burned and adjacent unburned areas. Uncontrolled wildfire in arid and semiarid ecosystems has become an increasing concern in recent decades. Active rehabilitation of fire-affected areas is often quickly initiated to minimize long-term ecosystem damage. However, the complex soil-geomorphic-vegetation patterns and low and variable moisture conditions in these regions makes restoration challenging. To further inform these post-fire management decisions, we present results from 5-years of vegetation and sediment flux monitoring following the Milford...
Types: Citation;
Tags: Brassicaceae,
Bromus tectorum,
Fillmore,
Halogeton,
Kochia prostrata, All tags...
Milford Flat,
Millard County,
Salsola,
USGS Science Data Catalog (SDC),
Utah,
dust,
rehabilitation,
restoration,
seeding,
wildfire,
wind erosion, Fewer tags
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