Regional Agglomeration Characteristics and Spatiotemporal Evolution of Snow and Ice Sports Industry in Heilongjiang Province from the Perspective of Time and Space

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left" rowspan="2">Experiment factor</td><td class="align_center" rowspan="2">Coded value</td><td class="align_center" colspan="3">Factor level and coding design</td></tr><tr class="thead"><td class="align_center">−1</td><td class="align_center">0</td><td class="align_center">1</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">Industrial ecological efficiency (IEE)</td><td class="align_center">A</td><td class="align_center">0.5</td><td class="align_center">0.7</td><td class="align_center">0.9</td></tr><tr><td class="align_left">Primary industry/tertiary industry (PI/TI)</td><td class="align_center">B</td><td class="align_center">1.9</td><td class="align_center">2.2</td><td class="align_center">2.5</td></tr><tr><td class="align_left">Industrial pollution index (IPI)</td><td class="align_center">C</td><td class="align_center">12.4</td><td class="align_center">15.8</td><td class="align_center">19.2</td></tr><tr><td class="align_left">Energy consumption index (ECI)</td><td class="align_center">D</td><td class="align_center">0.4</td><td class="align_center">0.6</td><td class="align_center">0.8</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Factor-level design scheme of Box-Behnken response surface method.</div>

Mathematical Problems in Engineering

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Table 1

Table 1: Regional Agglomeration Characteristics and Spatiotemporal Evolution of Snow and Ice Sports Industry in Heilongjiang Province from the Perspective of Time and Space 

Table 1 | Regional Agglomeration Characteristics and Spatiotemporal Evolution of Snow and Ice Sports Industry in Heilongjiang Province from the Perspective of Time and Space 