单词 | phytograph |
释义 | phytograph Ecol.|ˈfaɪtəʊgrɑːf, -æ-| [f. phyto- + Gr. -γραϕ-ος: see -graph.] A diagram showing several quantifiable criteria of the ecological status of a (usu. silvan) species within an association.
1930H. J. Lutz in Ecology XI. 9 The term phytograph is proposed to designate a chart of this kind when used to characterize plant relationships. 1950Forestry Abstr. XI. 580/2 Jack pine stands of equal age subjected to different degrees of thinning might be represented for purposes of comparison by phytographs constructed on 5 axes on which are shown their respective:—(1) average spacing of stems, [etc.]. 1971F. C. Ford-Robertson Terminol. Forest Sci. 194/1 Phytograph... A polygonal figure depicting the role of a species in a plant community. |

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