摘要
This study describes the floristic composition and structure of a woody stand in the Senegalese Sahel, paying particular attention to the edaphic factors of its floristic composition. A stratified inventory considering the different relief units was adopted. Woody vegetation was surveyed using a dendrometric approach. The results obtained show that the flora is dominated by a few species adapted to drought, such as Balanites aegyptiaca (L.) Del., Calotropis procera Ait. and Boscia senegalensis (Pers.). The distribution of this flora and the structure of the ligneous plants are linked to the topography. In the lowlands, the flora is more diversified and the ligneous plants reach their optimum level of development compared with the higher relief areas. In the lowlands, there are a few woody species which, in the past, were indicative of better climatic conditions. These are Anogeissus leiocarpus (DC.), Commiphora africana (A. Rich.), Feretia apodanthera Del., Loeseneriella africana (A. Smith), Mitragyna inermis (Willd.) and Sclerocarya birrea (A. Rich). It is important that their reintroduction into reforestation projects takes account of their edaphic preference.
This study describes the floristic composition and structure of a woody stand in the Senegalese Sahel, paying particular attention to the edaphic factors of its floristic composition. A stratified inventory considering the different relief units was adopted. Woody vegetation was surveyed using a dendrometric approach. The results obtained show that the flora is dominated by a few species adapted to drought, such as Balanites aegyptiaca (L.) Del., Calotropis procera Ait. and Boscia senegalensis (Pers.). The distribution of this flora and the structure of the ligneous plants are linked to the topography. In the lowlands, the flora is more diversified and the ligneous plants reach their optimum level of development compared with the higher relief areas. In the lowlands, there are a few woody species which, in the past, were indicative of better climatic conditions. These are Anogeissus leiocarpus (DC.), Commiphora africana (A. Rich.), Feretia apodanthera Del., Loeseneriella africana (A. Smith), Mitragyna inermis (Willd.) and Sclerocarya birrea (A. Rich). It is important that their reintroduction into reforestation projects takes account of their edaphic preference.
作者
Moustapha Bassimbe Sagna
Aïssatou Ndong Thiam
Khoudia Niang
Oumar Sarr
Aly Diallo
Sekouna Diatta
Daouda Ngom
Aliou Guissé
Moustapha Bassimbe Sagna;Aïssatou Ndong Thiam;Khoudia Niang;Oumar Sarr;Aly Diallo;Sekouna Diatta;Daouda Ngom;Aliou Guissé(Department of Plant Biology, Faculty of Science and Technology, Cheikh Anta Diop University, Dakar, Senegal;IRL 3189 “Environment, Health, Society”, Tessekere Human Environment Observatory (Senegal), Dakar, Senegal;Department of Agronomy and Plant Production, El Hadji Ibrahima Niasse University, Kaolack, Senegal;Department of Agroforestry, Assane Seck University, Ziguinchor, Senegal)
