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  • 1
    ISSN: 0931-1890
    Keywords: Key words Laurel forest ; Laurisilva ; Stand structure ; Leaf area index ; Canopy structure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract  Stand structure and leaf area distribution of a laurel forest in the Agua García mountains of Tenerife are described. The site is situated at 820 m a.s.l., faces NNE, and has a humid mediterranean climate. Summer droughts are mitigated by relatively high air humidity and clouds. The natural mixed hardwood forest is composed of six major tree species: Laurus azorica (Seub.) Franco, Persea indica (L.) Spreng, Myrica faya Ait., Erica arborea L. and two species of Ilex (I. platyphylla Webb & Berth. and I. canariensis Poivet.). The experimental stand had a density of 1693 trees ha – 1, a basal area of 33.7 m2ha – 1, and a cumulated volume of above-ground parts of trees of 231 m3 ha – 1 with a corresponding dry mass of 204 ton ha – 1. Diameters at breast height ranged from 6 to 46 cm. Mean concentration of plant dry mass per volume was 1.17 kg m – 3. The vertical pattern of leaf area distribution in individual trees for all tree species was characterized by a Gaussian-like curve. Stand leaf area index was 7.8. These evergreen, broad-leaved (laurisilva or lucidophyllous) forests represent a relic forest that was widespread in the Mediterranean region some 20 million years ago. Our data illustrate some of the structural characteristics of this historically widespread forest type.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0931-1890
    Keywords: Key words Laurel forest ; Laurisilva ; Vertical leaf distribution ; Radial leaf distribution ; Allometric relations
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract  Branching pattern, leaf distribution (area, dry weight, number) and allometric relations on individual trees from a Canarian laurel forest have been analyzed. The following species were studied: Persea indica (L.) Spreng., Laurus azorica (Seub.) Franco, and Erica arborea L. Crown architecture was similar in all study species and corresponded to Rauhs’s model. In all species, leaf area was highly correlated to stem diameter. The vertical distribution of foliage was largely symmetrical and was roughly approximated by a Gaussian-like pattern which shifted upwards in dominant tree and downwards in suppressed tree. When radially viewed, most of the foliage area occurred roughly half the distance between the stem axis and the edge of the crown. However, radial leaf area indices, calculated for different areas of annulus around stems, showed a maximum closer to the stem.
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  • 3
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    Masaryk University Press | Masaryk University
    Publication Date: 2024-04-04
    Description: Equadiff 15 – Conference on Differential Equations and Their Applications – is an international conference in the world famous series Equadiff running since 70 years ago. This booklet contains conference materials related with the 15th Equadiff conference in the Czech and Slovak series, which was held in Brno in July 2022. It includes also a brief history of the East and West branches of Equadiff, abstracts of the plenary and invited talks, a detailed program of the conference, the list of participants, and portraits of four Czech and Slovak outstanding mathematicians.
    Keywords: Equadiff ; Differential Equations ; Applications ; History ; thema EDItEUR::P Mathematics and Science::PB Mathematics::PBK Calculus and mathematical analysis::PBKJ Differential calculus and equations
    Language: English
    Format: image/jpeg
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