tyro Translations

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Over 14 years ago
Japanese (Native) English Korean Russian
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tyro English → Japanese
Original Text

This is particularly true for trees in the middle and upper latitudes, which tend to attain greater heights on ridges, whereas in the tropics the trees reach their greater heights in the valleys. This is because middle- and upper- latitude timberlines are strongly influenced by the duration and depth of the snow cover. As the snow is deeper and lasts longer in the valleys, trees tend to attain greater heights on the ridges, even though they are more exposed to high-velocity winds and poor, thin soils there. In the tropics, the valleys appear to be more favorable because they are less prone to dry out, they have less frost, and they have deeper soils.

Translation

このことはとりわけ中高緯度の樹木については事実である。こういった地帯では樹木は尾根のほうが高くなる傾向があるが、他方熱帯においては渓谷のほうが樹木は高くなる。これはつまり、中高緯度帯では高木の生育限界が積雪の期間および量に影響される部分が大きいためだ。渓谷のほうが雪が深く積もり、かつ長い間溶けないため、たとえ強風にさらされ浅く貧弱な土壌を余儀なくされる度合いが大きかろうと、尾根の樹高のほうが伸びる方向になるのである。熱帯の場合は、渓谷のほうが、乾燥しにくい、降霜がすくない、深く根を張れるという点から好都合のようである。