Laurel forests in Tenerife, Canary Islands .1. The site, stand structure and stand leaf area distribution

被引：47

作者：

Morales, D ^{[1
]}

Jimenez, MS ^{[1
]}

GonzalezRodriguez, AM ^{[1
]}

Cermak, J ^{[1
]}

机构：

[1] UNIV LA LAGUNA,DEPT BIOL VEGETAL,E-38207 LA LAGUNA,SPAIN

来源：

TREES-STRUCTURE AND FUNCTION | 1996年 / 11卷 / 01期

关键词：

laurel forest; laurisilva; stand structure; leaf area index; canopy structure;

D O I：

10.1007/s004680050055

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

Stand structure and leaf area distribution of a laurel forest in the Agua Garcia 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 m(2)ha(-1), and a cumulated volume of above-ground parts of trees of 231 m(3) 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 fro 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.

引用

页码：34 / 40

页数：7