Filters: Tags: vegetation (X)6,962 results (99ms)
CURLEW NATIONAL GRASSLAND, WESTSIDE RANGER DISTRICT, CARIBOU-TARGHEE NATIONAL FOREST, ONEIDA COUNTY, IDAHO.
Research Highlight for "Modeling Climate-Driven Changes to Dominant Vegetation in the Hawaiian Islands"
This downloadable PDF research feature summarizes the Pacific Islands Climate Science Center-supported project "Modeling Climate-Driven Changes to Dominant Vegetation in the Hawaiian Islands".
Project Snapshot: Assessing the Potential Effects of Climate Change on Vegetation in Hawai`i Volcanoes National Park
This project snapshot provides a brief overview of the project "Assessing the Potential Effects of Climate Change on Vegetation in Hawai`i Volcanoes National Park".
Exposure (vulnerability) index for the future time period (2061-2080) representing projected climate conditions from the Meteorological Research Institute's Coupled Atmosphere-Ocean General Circulation Model, version 3, and the rcp85 emissions scenario. The exposure model uses LANDFIRE vegetation data and Worldclim climate data .The raster values represent exposure scores for the corresponding vegetation type. The modeled vegetation types can be spatially associated with the exposure values by overlaying them with the "landfire_veg_sw_300m.tif" raster.Exposure values represent where the location falls in climate space relative to its recent historical distribution:5 (core 5% of historical climate space); 10 (5 -...
Delineates outbreaks of the two focal species referred to as Mountain Pine Bettle Covers the CCE and 50km into the surrounding area from 2000 to 2015. This layer is a compilation from multiple sources, Bruce spanworm polygons were removed from Alberta data. This dataset was developed by the Crown Managers Partnership, as part of a transboundary collaborative management initiative for the Crown of the Continent Ecosystem, based on commonly identified management priorities that are relevant at the landscape scale. The CMP is collaborative group of land managers, scientists, and stakeholder in the CCE. For more information on the CMP and its collaborators, programs, and projects please visit: http://crownmanagers.org/
Pre-restoration vegetation data, Little Saint Francis River chat pile site, Missouri, USA, 2017 and 2018
This data set includes geospatial data and tables providing location, environmental, and vegetation data collected in 2017 and 2018 at the Little Saint Francis River chat pile restoration site, Fredericktown, Madison County, Missouri. Restoration actions are being implemeneted as part of the settlement for the Madison County Mines Superfund site to compensate the public for losses of natural resources and the services they provide as part of the Natural Resource Damage Assessment and Restoration Southeast Missouri Lead Mining District case. Data were collected prior to and during the early stages of restoration actions to restore bottomland forest habitat, reduce invasive plant species abundance, and improve upland...
High resolution vegetation polygons mapped by the National Park Service. These data describe vegetation for the Whiskeytown National Recreation Area through the formation of polygons of similar vegetation cover. The desired minimum mapping unit was 0.5 hectares in size. However polygons as small as 0.1 hectares are included. Vegetation is classified according to the US National Vegetation Classification Standard (NVCS, http://www.fgdc.gov/standards/projects/FGDC-standards-projects/vegetation/NVCS_V2_FINAL_2008-02.pdf) to the association level when possible (31 classes), to the alliance level. A "Barren" class and a "Disturbed" class are also included for a total of 38 categories.
A vegetation map of Bandelier National Monument. This map is based on natural color orthophotography acquired in 2004 with a spatial resolution of 1 meter, displayed at 1:24,000 scale. Map units were delineated using aerial photo interpretation and image analysis based on 729 field survey points collected between 2003 and 2006. Final map compiled in ArcGIS Version 9.3, January, 2010. For details see Muldavin, E., A. Kennedy, C. Jackson, T. Neville, P. Neville, K. Schulz, and M. Reid. 2010. A Vegetation Classification and Map Report: Bandelier National Monument. Natural Resource Technical Report NPS/SCPN/NRTR-2010/00X, National Park Service, Fort Collins, Colorado.
These maps are a digital representation of the individual tree species range maps of the Atlas of the United States Trees by Elbert L. Little, Jr. The atlas shows the natural distribution or range of the native tree species of North America. These coverages represent 3 volumes of the atlas. Little's tree extent maps can be found in the Data Basin gallery here: http://app.databasin.org/app/pages/galleryPage.jsp?id=5e449f3c91304f498a96299a9d5460a3
Results: MaxEnt Predicted Probability of Sahara Mustard (Brassica tournefortii) Occurrence - Current Climate
This dataset depicts the predicted probability of Sahara Mustard (Brassica tournefortii) occurrence in the Sonoran Desert Ecoregion, based on a MaxEnt model. This model was trained using occurrence points derived from multiple sources, and using prediction surfaces derived from a digital elevation model, distance to highways, precipitation, temperature, existing vegetation (LANDFIRE EVT v1.1), surficial geology, and soils (SSURGO and STATSGO). Model AUC is 0.857 (indicates fair rate of prediction accuracy relative to the training data). Due to potentially wide variability in the quality of training plots used for this prediction, and the coarse resolution of several predictors, caution should be exercised when...
Percent change in the average annual value of total ecosystem carbon between 1971-2000 and 2070-2099, as simulated by MC1 under Hadley A2 for the Eastern Oregon study area, USA
This map represents the percent change in total ecosystem carbon from 1971-2000 to 2070-2099, simulated by the model MC1 under the Hadley future climate projection and A2 anthropogenic emissions scenario. The average annual value of total ecosystem carbon for the respective 30-year periods decreased in some of the 5,311 grid cells of the Eastern Oregon study area and increased in others.The range of data values is from -18.2% to +194.1%. The mean value is -78.0% The vegetation model MC1 (e.g. Bachelet et al. 2001) was used to simulate vegetation dynamics, associated carbon and nitrogen cycle, water budget, and wild fire impacts at two study sites, one in eastern Oregon (Deschutes and Fremont-Winema National Forests)...
Difference in mean annual minimum temperatures between 1971-2000 and 2070-2099 under Hadley A2 for the Apache-Sitgreaves study area, Arizona, USA
This map represents the difference in annual minimum temperatures, simulated by the model MC1 between the 30-year periods 1971-2000 and 2070-2099, using the Hadley future climate projection under the A2 anthropogenic emission scenario. The average annual minimum temperature for the respective 30-year periods increased in all of the 5,311 grid cells of the Apache-Sitgreaves study area. The greatest increase was 4.35 C; the least increase was 4.26 C; and the mean increase was 4.31 C. The vegetation model MC1 (e.g. Bachelet et al. 2001) was used to simulate vegetation dynamics, associated carbon and nitrogen cycle, water budget, and wild fire impacts at two study sites in eastern Oregon (Deschutes and Fremont-Winema...
Annual Fraction of the Total Live Vegetation Carbon Held in Herbaceous Plants (1971-2000) for the Apache-Sitgreaves study area, Arizona, USA
This map represents the mean for the 30 year period 1971-2000 of the annual peak value of the fraction of live vegetation carbon which is in herbaceous (as opposed to woody) vegetation. The data is from output variable GFRAC in MC1 version B60. The data values are unitless fractions and range from 0 to 1. The vegetation model MC1 (e.g. Bachelet et al. 2001) was used to simulate vegetation dynamics, associated carbon and nitrogen cycle, water budget, and wild fire impacts at two study sites in eastern Oregon (Deschutes and Fremont-Winema National Forests) and in Arizona (Apache Sitgreaves National Forest area) in the context of a project funded by the USDA Forest Service (PNW 09-JV-11261900-003). Historical climate...