In substance, the changes of setup of climatic snowline in space are a reflection of variations of the hydrothermal condition.
雪线空间格局变化实质上是水热条件变化的反映。
The regulars of space distribution of the climatic snowline are both controlled by the changes of altitude and latitude, and by the changes of regional climate.
气候雪线的空间分布规律既受高度地带性和纬度地带性限制，也受区域性气候的控制。
On that basis, the primary features of spatial distribution of the forest line in China and its relations with the permafrost limits and climatic snowline are discussed.
在此基础上研究了我国森林线的空间分布特征及其与多年冻土线、气候雪线的关系。
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