Belouahem-Abed Djamila, Belouahem Foudil, Benslama Mohamed, de Bélair Gérard, Muller Serge D
Institut national de recherche forestière, station de recherche, El Kala (El Tarf), Algérie.
C R Biol. 2011 Jan;334(1):61-73. doi: 10.1016/j.crvi.2010.10.005. Epub 2010 Dec 3.
The phytoecological study of the alder forests of north-east Algeria shows that these habitats with boreal affinities harbour very high species richness (> 400 species) and complex structures, which suggest their ancient origin. They correspond phytosociologically to two syntaxa, the Campanulo alatae-Alnenion glutinosae (riparian alder forests) and the Rusco hypophylli-Alnetum glutinosae (peat-forming alder carrs), respectively. Their degraded state and their regressive dynamics, observed during the 14 years of the study, reveal their precarious situation and their rapid ongoing decline under the influence of human-induced uncontroled disturbances (cutting, burning, draining, dumping…). With regard to their ecological, historical and patrimonial importance, the alder forests of Algerian Numidia should be urgently protected, with the aim of assuring the perennity of their exceptional floristic corteges.
对阿尔及利亚东北部桤木林的植物生态学研究表明，这些具有北方亲缘关系的栖息地拥有非常高的物种丰富度（>400种）和复杂的结构，这表明它们起源古老。在植物社会学上，它们分别对应于两个群系，即翅果风铃草-黏性桤木群系（河岸桤木林）和叶下露珠草-黏性桤木群系（形成泥炭的桤木沼泽）。在研究的14年中观察到的它们的退化状态和衰退动态，揭示了它们岌岌可危的状况以及在人为引起的不受控制的干扰（砍伐、焚烧、排水、倾倒……）影响下正在迅速衰退的情况。鉴于其生态、历史和遗产重要性，阿尔及利亚努米底亚的桤木林应立即得到保护，以确保其独特植物群落的永久性。
