| 词汇 | evapotranspiration |
| 释义 | evapotranspiration noun[ U ] uk /ɪˌvæp.əʊˌtræn.spɪˈreɪ.ʃən/ us /ɪˌvæp.oʊˌtræn.spəˈreɪ.ʃən/ the process by which water moves from the earth to the air through evaporation and transpiration (= water lost from plants)（土壤水分）蒸发蒸腾作用 The Earth & outer space - general words ablate alluvium anti-gravity atmosphere atmospherically auroral geo- geocentric horizon hydrosphere infinite lithosphere lithospheric macrocosm mesosphere mesospheric microgravity the Big Bang underground zero gravity You can also find related words, phrases, and synonyms in the topics: Water in general evapotranspiration | American Dictionaryevapotranspiration noun[ U ] us/ɪˈvæp·oʊˌtran·spəˈreɪ·ʃən/ earth science the process in which water moves from the earth to the air from evaporation (= water changing to a gas) and from transpiration (= water lost from plants) Examples of evapotranspirationevapotranspiration It is an area of permanent drought, where evapotranspiration exceeds precipitation for most of the year. Since evapotranspiration losses are largely controlled by the meteorological conditions, seasonal evapotranspiration is nearly the same whether yields are high or low. Thus, remote sensing may enable relatively inexpensive measurement of evapotranspiration over much greater geographical coverage than could be obtained by weather stations alone. Such deforestation raises temperatures and decreases evapotranspiration at a local level, as well as potentially on a cumulative, regional scale. High evapotranspiration rates in these climatic zones bring salts in the soil solution to the topsoil where the salts accumulate after water is evaporated. This also demonstrates the influence of ground vegetation on the overall evapotranspiration process in a coffee plantation. Actual rates of evapotranspiration fell below maximum values when the soil water deficit exceeded only 20 mm. This was because they were under the same environmental conditions and so had the same percolation loss and evapotranspiration. Phaeozems, by contrast, develop where evapotranspiration exceeds precipitation (showing stress in the middle of the growing season). The average annual rainfall is 810 mm and potential evapotranspiration 1500 mm. As expected, the longer the maturity of the variety, the higher the total evapotranspiration for the entire season. A reduction in yield may occur when rainfall is insufficient to meet the evapotranspiration demand. It seems that the lower rainfall and higher reference crop evapotranspiration restricted crop water uptake in the early part of 2001. In the semi-arid and arid fringe areas, where evapotranspiration rates are high, salts begin to accumulate on the soil surface over several crop cycles. However, neither regression line passed through the origin, suggesting a curvilinear relationship at lower evapotranspiration values. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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