초록

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Abstract ▼ AI-Helper

This study was carried out to compare the characteristics of hydraulic architecture by measurement of leaf specific conductivity(LSC) in the twenty-one deciduous broad-leaved species. The LSC's of stems were higher than in branches except Acer mono, A. triflorum, Betula schmidtii, Fraxinus rhynchoph...

This study was carried out to compare the characteristics of hydraulic architecture by measurement of leaf specific conductivity(LSC) in the twenty-one deciduous broad-leaved species. The LSC's of stems were higher than in branches except Acer mono, A. triflorum, Betula schmidtii, Fraxinus rhynchophylla and Zelkova serrata, and lowest in junction parts as compared with stems and branches. In diffuse-porous species, the LSC was much higher in B. plalyphylla var. iaponica, B. schmidtii, Cornus controversa, Tilia amurensis than those of other species and especially lowest in A. triflorum. In ring-porous species, the LSC was much higher in Maackia amurensis, Paulownia tomentasa, Quercus aliens, Q. serrata than those of other species and lowest in Ulmus davidiana var. japonica. The LSC's of 1-year-old terminal shoots of stem(the leader and adjacent laterals) in A. triflorum, C. controversa. F. mandshurica, Q. mongolica and Z. serrata ranged from 22 to $139{\mu}{\ell}/g$ in the leaders, and 11 to $73{\mu}{\ell}/g$ in the adjacent laterals. The LSC's of leaders were usually greater than the adjacent laterals because of the hydraulic dominance of the leader shoot.

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