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Found 10 records similar to Cumulative effects of disturbances on soil nutrients: predominance of antagonistic short-term responses to the salvage logging of insect-killed stands
Area of moderate to severe defoliation (including beetle-killed trees) by insects
The Natural Disturbance Type map is based on the Provincial Biodiversity Guidebook (1995) and the current and most detailed version of the approved corporate provincial Biogeoclimatic Ecosystem Classification (BEC) Zone/Subzone/Variant/Phase map (version 11, August 10th, 2018) (Data Catalog record: https://catalogue.data.gov.bc.ca/dataset/f358a53b-ffde-4830-a325-a5a03ff672c3). The natural disturbance type classification code is used to designate a period process or event such as insect outbreaks, fire, disease, flooding, windstorms and avalanches that cause ecosystem change and renewal. Natural disturbance type classification and mapping is used for a wide variety of applications in British Columbia. A few examples include: delineation of Natural Disturbance Types for Landscape Unit Planning; delineation of Seed Planning Zones; as an input for Predictive Ecosystem Mapping; reporting on the ecological representation of the Protected Areas Strategy; and as a level in the classification hierarchy for Broad Ecosystem Units.
As part of a scientific assessment of critical habitat for boreal woodland caribou (Environment Canada 2011, see full reference in accompanying documentation), Environment Canada's Landscape Science and Technology Division was tasked with providing detailed anthropogenic disturbance mapping, across known caribou ranges, as of 2015. This data comprises a 5-year update to the mapping of 2008-2010 disturbances, and allows researchers to better understand the attributes that have a known effect on caribou population persistence. The original disturbance mapping was based on 30-metre resolution Landsat-5 imagery from 2008 -2010. The mapping process used in 2010 was repeated using 2015 Landsat imagery to create a nationally consistent, reliable and repeatable geospatial dataset that followed a common methodology.
This dataset is associated with the article authored by Louis De Grandpré et al. titled "Defoliation-induced changes in foliage quality may trigger broad-scale insect outbreaks" accepted for publication in Communications Biology. In this study, progression of a spruce budworm outbreak over several years was shown to be associated with increased soil nutrient fluxes and availability and improved foliage quality in surviving host trees.
This is a linear disturbance dataset for the Livingstone-Porcupine Hills region of Alberta. This dataset was created to support spatial analyses of linear disturbances in the Livingstone-Porcupine Hills region for the Alberta Environment and Parks report entitled 'Linear Disturbances in the Livingstone-Porcupine Hills of Alberta: Review of Potential Ecological Responses' which can be found at https://open.alberta.ca/publications/9781460140338. All linear disturbances are grouped into five categories using attribution from input data sources. These include: paved roads.
The archive found in the Zenodo repository contains the most recent and historical (dating back to 2018) extracts of the entire National Forestry Database. This includes data pertaining to: wood supply, forest fires, forest products, silviculture, jurisdictional revenues, insect defoliation and pest control.
This dataset is associated with the article authored by Marine Pacé, Benjamin Gadet, Julien Beguin, Yves Bergeron et David Paré entitled " Drivers of boreal tree growth and stand opening in boreal forest: the case of jack pine on sandy soils ". It comprises 37 plots including 20 plots near the locality of La Sarre (48° 48’ N; 79° 12’ W) and 17 plots near the locality of Chibougamau (49° 53’ N; 74° 20’ W). It includes data on forest stands (DBH, height, age), permanent environmental conditions (surface deposits, slope, granulometry and chemical characteristics of the C horizon), and non permanent environmental characteristics (disturbance history, understory vegetation, depth of the organic layer, soil water content chemical characteristics of the eluted and accumulation horizons). It also contains data on tree growth (dendrochronological stem analysis) and isotopic composition of the cellulose (13C).
The National Ecological Framework for Canada's "Soil Texture by Ecozone” dataset contains tables that provide soil texture information within the ecozone framework polygon. It provides soil texture codes and their English and French language descriptions as well as the percentage of the polygon that the component occupies. Soil texture indicates the relative proportions of the various soil separates (sand, silt, clay) as described by classes of texture. Soil separates are mineral particles, 2.0 mm in diameter and include: gravel 0.2 -7.5 cm and cobbles 7.5-25.0 cm.
Soil Mapping (SOIL) Project Boundaries (study areas) contains the soil survey project area and attributes describing each project (project level metadata), plus links to the locations of other data associated with the project (e.g., soil survey reports, polygon datasets, plotfiles, scanned maps, legends). Soil Mapping divides the landscape into units according to soil association, name, type, drainage, parent material, and texture. This layer is derived from the STETEIPROJECTBOUNDARIESSP layer by filtering on the PROJECT_TYPE attribute. The Soil Survey dataset contains project boundaries as well as the soil survey polygons which are available in a variety of formats including: 1) via the Soil Information Finder Tool Mapping App (interactive app), 2) Soil Survey Spatial data with Soil Name and Layer Files (for download or viewing via iMapBC), or as 3) Soil Mapping Data Packages with geodatabase or shape files, and a data dictionary.
Hotspots represent active wildfires. Natural Resources Canada Canadian Wild Fire Information System identifies them by processing Infrared satellite images. This layer contains the hotspots that are selected to be used as input for FireWork to enable forecasting air quality while taking into account wildfire emissions. Geographical coverage is Canada and the United States.