| 单词 |
phreatophyte |
| 释义 |
phreatophyte|friːˈætəʊfaɪt|
[f. Gr. ϕρέαρ, ϕρεατ- tank, cistern + -phyte.]
A plant with a deep root system that draws its water supply from near the water-table.
1920Bull. Geol. Soc. Amer. XXXI. 333 In arid regions plants of certain species habitually utilize water from the zone of saturation. For such plants the name phreatophyte (meaning a well-plant) has been proposed... Willow trees are among the most common phreatophytes in the arid West. 1928Ecology IX. 474 The phreatophytes or ‘well plants’ which derive their water supply from the ground water and are more or less independent of local rainfall. 1963D. W. & E. E. Humphries tr. Termier's Erosion & Sedimentation vi. 136 Most other plants in dry regions need roots long enough to reach down to the water table, or at least to its capillary fringe; these are the phreatophytes. 1965R. G. Kazmann Mod. Hydrol. v. 144 The most widespread of the desert phreatophytes in the United States are salt grass, greasewood, mesquite, and salt cedar. 1974Internat. Gloss. Hydrol. 171/2 Phreatophytes, water-loving plants that grow mainly along stream courses and/or where their roots reach the capillary fringe. |
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