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GIS data in Data Basin showing relationship between major soil types and recent pinyon pine dieback in the southwest.
Categories: Data, Web Site; Tags: pinyon pine
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This dataset was developed using the STATSGO2, 1:250,000-scale US soils database with soil descriptions from the NRCS website (http://ortho.ftw.nrcs.usda.gov/cgi-bin/osd/osdname.cgi). The main soil characteristics described by this dataset are soil order, texture, climate regime and caliche (special diagnostic horizon).
Post-fire shifts in vegetation composition will have broad ecological impacts. However, information characterizing post-fire recovery patterns and their drivers are lacking over large spatial extents. In this analysis we used Landsat imagery collected when snow cover (SCS) was present, in combination with growing season (GS) imagery, to distinguish evergreen vegetation from deciduous vegetation. We sought to (1) characterize patterns in the rate of post-fire, dual season Normalized Difference Vegetation Index (NDVI) across the region, (2) relate remotely sensed patterns to field-measured patterns of re-vegetation, and (3) identify seasonally-specific drivers of post-fire rates of NDVI recovery. Rates of post-fire...
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The dataset contains 3 maps that show the current and predicted range of Pinyon pine (Pinus edulis) in the Pacific Northwest region. The layers include: 1) the species range modeled under current climate conditions for 1950-75 2) a continuous model of the predicted range for 1950-2006 and 3) potential range expansion and contraction from 2000-2009.
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Stomatal closure during periods of moisture deficiency should theoretically lead to elevated 13C/12C ratios as reduction of available CO2 leads to diminished photosynthetic discrimination against 13C in favor of 12C. Stable-carbon isotope ratio chronologies developed from 5-yr tree-ring groups at 17 sites in six southwestern states were tested for a drought relationship by first fitting a spline curve to each chronology to remove the long-term trend and calculating indices as the ratio of actual to spline curve value. The time series of ?Del Indices? so developed are significantly correlated with 5-yr mean Palmer Hydrological Drought Indices (post-1930 period) and reconstructed July Palmer Drought Severity Indices...
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This dataset was developed using the STATSGO2, 1:250,000-scale US soils database with soil descriptions from the NRCS website (http://ortho.ftw.nrcs.usda.gov/cgi-bin/osd/osdname.cgi). The soils dataset was clipped to the extent of the pinyon pine habitat in the four corners region of the US and soil orders with the highest correlation to pinyon pine die-back were selected and joined to show areas of potential future die-back.
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These soil map units were extracted from the STATSGO dataset for soils of the conterminous US to the extent of the pinyon-juniper woodland mortality datset (http://app.databasin.org/app/pages/datasetPage.jsp?id=71d55a65fc0244a68c627fdbcc887efa) . The MUSYMs were compared to STATSGO tables to determine soil series, associations and taxonomy. This information was along with the NRCS official soil series description website: http://ortho.ftw.nrcs.usda.gov/cgi-bin/osd/osdname.cgi to create the attribute tables showing series names, representative orders, textures, soil climates and diagnostic horizons present in each soil map unit.
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These data are species distribution information assembled for assessing the impacts of land-use barriers, facilitative interactions with other species, and loss of long-distance animal dispersal on predicted species range patterns for four common species in pinyon-juniper woodlands in the western United States. The layers in the data release are initial distribution records of two kinds: point occurrence records and a raster layer for the general vegetation types where the species is a co-dominant, compiled from other sources. Both types of data are the baseline information in species distribution models for the associated publication.
Current climate models predict a shift to warmer, drier conditions in the southwestern US. While major shifts in plant distribution are expected to follow these climate changes, interactions among species and intraspecific genetic variation rarely have been incorporated into models of future plant distributions. We examined the drought-related mortality of pinyon pine (Pinus edulis) in northern Arizona focusing on trees that showed genetically-based resistance or susceptibility to a nonlethal herbivore, the shoot-boring moth, Dioryctria albovittella. Because moth resistant trees have outperformed susceptible trees during 20 years of study, and herbivory has been shown to increase drought related mortality, we expected...
    map background search result map search result map Drought indicated in carbon-13/carbon-12 ratios of southwestern tree rings Current and predicted range of Pinyon pine under climate change in the Pacific Northwest Risk model of invasion of native shrublands by Juniper and Pinyon Pine for the Western USA High vulnerability soils of the pinyon pine die-back region Soils of New Mexico, Arizona, Utah and Colorado, USA Pinyon pine - soils in high mortality regions, southwestern US Risk of Pinyon-Juniper Invasion into Shrubland Habitats Occurrence records and vegetation type data used for species distribution models in the western United States Data release for tracking rates of post-fire conifer regeneration distinct from deciduous vegetation recovery across the western U.S. Pinyon pine - soils in high mortality regions, southwestern US High vulnerability soils of the pinyon pine die-back region Soils of New Mexico, Arizona, Utah and Colorado, USA Drought indicated in carbon-13/carbon-12 ratios of southwestern tree rings Data release for tracking rates of post-fire conifer regeneration distinct from deciduous vegetation recovery across the western U.S. Risk of Pinyon-Juniper Invasion into Shrubland Habitats Risk model of invasion of native shrublands by Juniper and Pinyon Pine for the Western USA Occurrence records and vegetation type data used for species distribution models in the western United States Current and predicted range of Pinyon pine under climate change in the Pacific Northwest