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630*17:581.11 (1) |
Лесное хозяйство. Лесоводство (331) |
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SM ISO690:2012 КРИВОРУЧКО, Анастасия, БЕССОНОВА, Валентина. Характеристика водного обмена листьев Quercus robur L. и Quercus rubra L. в чистых и смешанных группах. In: Ştiinţa Agricolă, 2017, nr. 1, pp. 66-73. ISSN 1857-0003. |
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Ştiinţa Agricolă | |||||||
Numărul 1 / 2017 / ISSN 1857-0003 /ISSNe 2587-3202 | |||||||
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CZU: 630*17:581.11 | |||||||
Pag. 66-73 | |||||||
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The peculiarities of water metabolism of the leaves of English oak (Quercus robur L.) and red oak (Quercus rubra L.) in pure and mixed groups were examined. Twelve-year-old forest plantations of both species on an area of 1.6 ha were the object of study. It was found that in both pure and mixed groups the leaves of Q. robur are characterized by more intense transpiration than Q. rubra. The joint growth of these species, on the whole, leads to a more active evaporation of water by Q. robur leaves than in the single-species groups. The leaves of Q. rubra in two-species groups lose less or the same amount of water in the transpiration process as in the single-species groups. The leaves of Q. rubra having a higher water storage capacity in both variants are characterized by a more uniform and stable daily course of transpiration. As a result of the joint growth, the water deficit in the leaves of Q. rubra increased in July and September compared to the pure groups. The differences in the leaves of Q. robur between the two studied sites are unreliable. The obtained data indicate the absence of an explicit negative mutual influence between the species on the water metabolism indices of their leaves. |
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Cuvinte-cheie Quercus robur, Quercus rubra, Интенсивность транспирации, Водоудерживающая способность, Водный дефицит |
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