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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Basic features and spatial distribution of physiochemical field of the pan water rock system were analyzed.

分析了泛水岩系统物理化学场的基本特征及其空间分布规律。

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Based on 294 earthquake sequences with magnitude greater than or equal to 5.0 occurred in Chinese mainland since 1970, the spatial distribution features of sequence types have been studied.

利用中国大陆1970年以来记录相对完备的294次5.0级以上的地震序列，研究地震序列类型的空间分布特征。

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