| 单词 |
evapotranspiration |
| 释义 |
evapotranspiration|ɪˌvæpəʊtrɑːnspɪˈreɪʃən, -træns-|
[f. evaporation + transpiration 2.]
The conversion of water to water vapour, from the soil by evaporation and from plants by transpiration; the amount of water so lost.
1948Geogr. Rev. XXXVIII. 55 The combined evaporation from the soil surface and transpiration from plants, called ‘evapotranspiration’, represents the transport of water from the earth back to the atmosphere, the reverse of precipitation. 1958New Biol. XXV. 52 The hydrologic cycle of an area of land receiving all its water as precipitation can be expressed by the equation P = E + R {pm} S where P = precipitation, E = evapotranspiration (interception by vegetation, evaporation from the soil and transpiration by plants), R = run-off and S = changes in water storage.
Add: Hence eˌvapotranˈspirative a., pertaining to or resulting from evapotranspiration.
1970W. W. Jeffrey in D. M. Gray Handbk. Princ. Hydrol. xiii. 24 The general water balance equation shows the importance of evapotranspirative losses to water resources. 1985Biol. Abstr. 1 Jan. 933/1 The effects of suboptimal irrigation practice upon yield and total water consumption are evaluated for a wheat crop through simulation, using a modification of Hanks' evapotranspirative model. |
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