Another important push was the onset of the Little Ice Age, a climatic phenomenon that led to cooler temperatures in the Northern Hemisphere.
另一个重要的推动因素是小冰期的开始，这一气候现象导致北半球气温下降。
The formation of LMLS is a specific phenomenon during the process of climatic drought, and is one of the direct causes of vegetation pattern evolution.
土壤干层的形成是气候干旱化过程中必然出现的现象，它是导致植被演替的直接原因之一。
The causes for the occurrence of this phenomenon are the influences of the sea-level rise and climatic change in the Mid Cretaceous.
该现象发生的原因是白垩纪中期的海平面上升和气候变化的影响。
Results show that the change of agricultural climatic resource such as energy of light and quatity of heat exists distinct mutation phenomenon, but the time of mutation disaccords .
结果表明，光热资源变化存在着显著的突变现象，但突变发生的时间并不一致。
The possible mechanism of the phenomenon is that the cold air from the Southern Hemisphere weakens with the climatic warming in Southern Hemisphere.
一种可能的机制是由于从南半球侵入西北太平洋的冷空气随着南半球气候的变暖而减弱。
The possible mechanism of the phenomenon is that the cold air from the Southern Hemisphere weakens with the climatic warming in Southern Hemisphere.
一种可能的机制是由于从南半球侵入西北太平洋的冷空气随着南半球气候的变暖而减弱。
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