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英翻中,關於水文學的文章

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hydrologic cycle 水文循環

Figures 1.1 and 1.2 illustrate that some precipitation evaporates before reaching t

he earth and remains in the atmosphere as water vapor .

Water also evaporates after reaching the earth .

Plants take up infiltrated water and groundwater and return a portion of it to the atmosphere through their leaves , a process known as transpiration .

Some infiltrated water may emerge to surface-water bodies as interflow , while other portions may become groundwater flow .

Groundwater may ultimately be discharged into streams or may emerge as springs .

After an initial filling of interception and depression storages , and providing that the rate of precipitation exceeds that of infiltration , overland flow (surface runoff) begins .

The magnitude and duration of a precipitation event determaine the relative importance of each component of the hydrologic cycle during that event .

During storm events , evaporation and transpiration may be minor considerations , for example , but during rain-free periods , evapotranspiration becomes a dominant feature of the hydrologic cycle.

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    Figures 1.1 and 1.2 illustrate that some precipitation evaporates before reaching the earth and remains in the atmosphere as water vapor .

    圖1.1及1.2舉例了一些降水在到達地面前的蒸發並停留在大停中成為水蒸氣的過程。

    Water also evaporates after reaching the earth .

    水在到達地面後仍會蒸發

    Plants take up infiltrated water and groundwater and return a portion of it to the atmosphere through their leaves , a process known as transpiration .

    植物吸收了入滲的水及地下水,並把部份的水藉由葉片釋放回大氣中,這個過程就是所謂的蒸散(transpiration)。

    Some infiltrated water may emerge to surface-water bodies as interflow , while other portions may become groundwater flow .

    部份入滲的水可能流入地表水體,即為所謂中間流(interflow,即地下水流入河湖的部份),其他的部份則成為地下水流(groundwater flow)

    Groundwater may ultimately be discharged into streams or may emerge as springs .

    地下水可能最後流入河川(stream)或流出成為泉水

    After an initial filling of interception and depression storages , and providing that the rate of precipitation exceeds that of infiltration , overland flow (surface runoff) begins .

    在降水剛開始時之截流(interception)及窪蓄(depression storage)後飽和後,提供了超過入滲量的降水量,超過的部份稱為地表逕流(overland flow, serface runoff)

    The magnitude and duration of a precipitation event determaine the relative

    importance of each component of the hydrologic cycle during that event .

    降雨事件的大小及延期決定了相對各組成現象的重要性

    During storm events , evaporation and transpiration may be minor considerations , for example , but during rain-free periods , evapotranspiration becomes a dominant feature of the hydrologic cycle.

    例如在暴雨(storm)時,蒸發和蒸散相較之下可不須考慮,但在無雨期(rain-free periods)蒸發散則變成主要的水文循環特性。

    2010-03-20 00:12:45 補充:

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