红树植物的胎生现象是对潮间带盐胁迫、淹水、土壤缺氧和潮水冲击等综合生境的适应，而不是单独其中一种胁迫因子的适应。

Vivipary in mangrove plants is an adaptation to the integrated stresses of salt, waterlogging and tide, but not any single stress.

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通过野外对灰鹤生境的观察和综合分析，确定灰鹤冬季生境选择的影响因子。

Through observation and compound analysis, the principle factors of common crane winter habitat selection was identified.

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本文根据历年在太原盆地各个生境逐月鸟类路线统计的资料，综合分析了一年内的鸟相变化规律；

According to the some year data of line transect census monthly in the various habitats of Taiyuan Basin, this paper has comprehensively analysed the variable regularity of bird's phase;

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