| 释义 |
phytal, a. Ecol.|ˈfaɪtəl|
[f. phyt- + -al.]
Of, pertaining to, or designating those parts of a body of water which are shallow enough to permit the growth of rooted green plants.
1918R. A. Muttkowski in Trans. Wisconsin Acad. Sci., Arts & Lett. XIX. 378 The lake as a whole may be divided into three general regions,—the littoral, or phytal region; the aphytal region; and pelagic region. 1926A. S. Pearse Animal Ecol. vi. 210 Muttkowski uses ‘littoral’ as synonymous with ‘phytal’.., but in very turbid lakes the phytal zone may be thinner than that of wave action, and in clear, small lakes it may be thicker. 1958W. D. R. Hunter in Miller & Tivy Glasgow Region 107 (caption) Map of Loch Lomond showing the extent of water (less than 13 feet deep), which is shallow enough to permit the growth of rooted green plants, i.e. the potential phytal zone. 1973Nature 8 June 342/1 Marine grasses would also have provided new sources of food for the macrofauna and microfauna and new means of dispersal for benthonic and phytal organisms. |
