根据研究地区现状，将研究地区生境因素划分为森林采伐、植被、地形、人为干扰4类。

The environment factors were classified into 4 types such as topography variables, vegetation variables, human disturbance factors and forest harvest variables.

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而郁闭度、坡度、植被类型、乔木高度、灌木高度、树桩高度、树洞密度、人为干扰的影响不明显。

The random factors were the canopy, slope degree, vegetation type, tree height, shrub height, tree stump height, tree hole density and human disturbance.

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在空三加密过程中，由于人为因素、地物的复杂性、植被及遮盖物等引起的加密点粗差；

In Geolord-AT three-dimensional triangulation process, artificial factors, complexity of surface feature , vegetation and so on cause the encrypted dot rude difference.

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