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The elevation and heatload index combines abiotic factors that play a major in determining the ecological capacity of a site, which can be used to inform where current plant communities may remain resilient to disturbance and/or where restoration efforts may be facilitated by favorable abiotic conditions. This map combines ecologically-relevant elevation classes with a heatload index to form a continuous scale ranging from high elevation/low heatload to low elevation/high heatload. The three elevation classes include areas <4000 feet (where invasive annual grass (IAG) is the primary threat), areas 4000-5500 feet (where both IAG and conifer expansion threats exist), and areas >5500 feet (where conifer expansion is the primary threat). Heat load, capturing a gradation from low to high incident radiation based on aspect, slope, and latitude (McCune and Keon 2002, DOI: 10.5066/F7B27TKM) was binned into three categories using natural breaks and combined with three elevation classes into 9 categories. Source: Institute for Natural Resources, 2024 |
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The elevation and heatload index combines abiotic factors that play a major in determining the ecological capacity of a site, which can be used to inform where current plant communities may remain resilient to disturbance and/or where restoration efforts may be facilitated by favorable abiotic conditions. This map combines ecologically-relevant elevation classes with a heatload index to form a continuous scale ranging from high elevation/low heatload to low elevation/high heatload. The three elevation classes include areas <4000 feet (where invasive annual grass (IAG) is the primary threat), areas 4000-5500 feet (where both IAG and conifer expansion threats exist), and areas >5500 feet (where conifer expansion is the primary threat). Heat load, capturing a gradation from low to high incident radiation based on aspect, slope, and latitude (McCune and Keon 2002, DOI: 10.5066/F7B27TKM) was binned into three categories using natural breaks and combined with three elevation classes into 9 categories. Source: Institute for Natural Resources, 2024 |
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Institute for Natural Resources, Oregon State University |
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5000 |
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| title:
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Elevation Heatload Index (Draft) |
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[] |
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en-US |
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150000000 |
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