This phyto-ecological study is on halophilic and salt-resistant vegetation of Oran region. The semiarid and sometimes arid climate has been defined and confirmed from a bioclimatic point of view. The pedological appro...This phyto-ecological study is on halophilic and salt-resistant vegetation of Oran region. The semiarid and sometimes arid climate has been defined and confirmed from a bioclimatic point of view. The pedological approach used shows a soil with sandy to silty-sandy texture, favoring regression of the vegetation and a halophilic vegetation set up. In this study, we analyze the floristic composition of the northern region of Hammam Boughrara using multiple floristic surveys conducted at three stations along the Tafna wadi. Dominated by Mediterranean and Saharo-Sindian elements, the relatively poor flora (88 species in total) is biologically characterized by a clear dominance of therophytes (>33%) and chamaephytes (>19%) to the detriment of phanerophytes.展开更多
Soil salinization and degradation of the vegetation cover is a problem of international topicality, that arises particularly in arid and semi arid regions, of where part of our study sites, and for know their floristi...Soil salinization and degradation of the vegetation cover is a problem of international topicality, that arises particularly in arid and semi arid regions, of where part of our study sites, and for know their floristic diversity, we attempted achieve a floristic inventory in stations undergoing a dry climate and intense anthropic action particularly in the north-west of Algeria. A protected station was considered as controls. In the Mediterranean region, the reading surface varies from 100 m^2 to 300 m^2 in forest, and 50 m^2 to 100 m^2 in matorrals and a few square meters in lawns [1], and for our case, we used the readings method by transect with the plots （100 m^2）. The interpretation of the vegetation has been done using a multidimensional treatment AFC. The results prove that the flora of study sites shows a floristic richness, although human action and rigor of the Mediterranean climate seem to have a negative effect on vegetation by the proliferation of xeric species and halophytes and sometimes toxic. The results show that the flora of the study sites shows a rich flora formed by the combination of annual and perennial communities where Therophytes dominate other life forms and in terms biogeographic Mediterranean species take the first place of all identified species, while endemic species are poorly re-presented. The Protected Station of Dam Hammam Boughrara presents no significant difference compared to other stations which are not put in defending.展开更多
文摘This phyto-ecological study is on halophilic and salt-resistant vegetation of Oran region. The semiarid and sometimes arid climate has been defined and confirmed from a bioclimatic point of view. The pedological approach used shows a soil with sandy to silty-sandy texture, favoring regression of the vegetation and a halophilic vegetation set up. In this study, we analyze the floristic composition of the northern region of Hammam Boughrara using multiple floristic surveys conducted at three stations along the Tafna wadi. Dominated by Mediterranean and Saharo-Sindian elements, the relatively poor flora (88 species in total) is biologically characterized by a clear dominance of therophytes (>33%) and chamaephytes (>19%) to the detriment of phanerophytes.
文摘Soil salinization and degradation of the vegetation cover is a problem of international topicality, that arises particularly in arid and semi arid regions, of where part of our study sites, and for know their floristic diversity, we attempted achieve a floristic inventory in stations undergoing a dry climate and intense anthropic action particularly in the north-west of Algeria. A protected station was considered as controls. In the Mediterranean region, the reading surface varies from 100 m^2 to 300 m^2 in forest, and 50 m^2 to 100 m^2 in matorrals and a few square meters in lawns [1], and for our case, we used the readings method by transect with the plots （100 m^2）. The interpretation of the vegetation has been done using a multidimensional treatment AFC. The results prove that the flora of study sites shows a floristic richness, although human action and rigor of the Mediterranean climate seem to have a negative effect on vegetation by the proliferation of xeric species and halophytes and sometimes toxic. The results show that the flora of the study sites shows a rich flora formed by the combination of annual and perennial communities where Therophytes dominate other life forms and in terms biogeographic Mediterranean species take the first place of all identified species, while endemic species are poorly re-presented. The Protected Station of Dam Hammam Boughrara presents no significant difference compared to other stations which are not put in defending.
