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40 lines
2.8 KiB
HTML
40 lines
2.8 KiB
HTML
<html>
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<head><link rel="stylesheet" type="text/css" href="help.css" /></head>
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<body>
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<h1 class='module'>Fragmentation (Standard)</h1>
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<div class='author'>(c) 2008 by O.Conrad</div>
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<div class='description'>Grid based fragmentation analysis after Riitters et al. (2000).<br/>
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<br/>
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(1) interior, if Density = 1.0<br/>
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(2) undetermined, if Density > 0.6 and Density = Connectivity<br/>
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(3) perforated, if Density > 0.6 and Density - Connectivity > 0<br/>
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(4) edge, if Density > 0.6 and Density - Connectivity < 0<br/>
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(5) transitional, if 0.4 < Density < 0.6<br/>
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(6) patch, if Density < 0.4<br/>
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<br/>
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<br/>
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References:<br/>
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Riitters, K., Wickham, J., O'Neill, R., Jones, B., Smith, E. (2000): <br/>
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Global-scale patterns of forest fragmentation. Conservation Ecology 4(2): 3<br/>
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<a href="http://www.ecologyandsociety.org/vol4/iss2/art3/">http://www.ecologyandsociety.org/vol4/iss2/art3/</a><br/>
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</div>
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<h2>Parameters</h2>
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<dl class='parameters'>
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<dt>Grid system <div class='type'>Grid system</div></dt><dd>Grid system <div class='constraints'></div></dd>
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<dt>Classification <div class='type'>Input Grid</div></dt><dd> <div class='constraints'></div></dd>
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<dt>Density [Percent] <div class='type'>Output Grid</div></dt><dd>Density Index (Pf). <div class='constraints'></div></dd>
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<dt>Connectivity [Percent] <div class='type'>Output Grid</div></dt><dd>Connectivity Index (Pff). <div class='constraints'></div></dd>
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<dt>Fragmentation <div class='type'>Output Grid</div></dt><dd>Fragmentation Index <div class='constraints'></div></dd>
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<dt>Summary <div class='type'>Output Table</div></dt><dd> <div class='constraints'></div></dd>
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<dt>Class Identifier <div class='type'>Integer</div></dt><dd> <div class='constraints'></div></dd>
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<dt>Neighborhood <div class='type'>Value range</div></dt><dd>Moving window size = 1 + 2 * Neighborhood. <div class='constraints'>Minimum: 1.51548668549e-316; Maximum: 1.51542344509e-316</div></dd>
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<dt>Level Aggregation <div class='type'>Choice</div></dt><dd> <div class='constraints'>Available choices: average, multiplicative</div></dd>
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<dt>Add Border <div class='type'>Boolean</div></dt><dd> <div class='constraints'></div></dd>
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<dt>Connectivity Weighting <div class='type'>Floating point</div></dt><dd> <div class='constraints'></div></dd>
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<dt>Minimum Density [Percent] <div class='type'>Floating point</div></dt><dd> <div class='constraints'>Maximum: 100.0</div></dd>
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<dt>Minimum Density for Interior Forest [Percent] <div class='type'>Floating point</div></dt><dd>if less than 100, it is distinguished between interior and core forest <div class='constraints'>Maximum: 100.0</div></dd>
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<dt>Neighborhood Type <div class='type'>Choice</div></dt><dd> <div class='constraints'>Available choices: square, circle</div></dd>
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<dt>Include diagonal neighbour relations <div class='type'>Boolean</div></dt><dd> <div class='constraints'></div></dd>
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</dl>
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</body></html>
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