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.
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.
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;
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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