Restoration of a Limestone Quarry: Effect of Soil Amendments on the Establishment of Native Mediterranean Sclerophyllous Shrubs

摘要: Limestone quarries are spread over the Mediterranean Basin and have a strong environmental impact on landscape, causing vegetation losses soil losses. A reclamation project was conducted in limestone quarry, situated Arrabida Natural Park (southwest Portugal), that is dominated by mediterranean vegetation. Revegetation using three evergreen sclerophyllous shrub species (Ceratonia siliqua, Olea europaea, Pistacia lentiscus), new techniques were assayed to improve plant water status nutrient during first phases after plantation. water-holding polymer (gel), fertilizer, mycorrhiza inoculum applied factorial experiment randomized complete block design. The success of these evaluated 1.5 years, through monitoring growth ecophysiology plants. Plant survival high, lowest values (95%) being recorded C. siliqua. There species-specific responses treatments applied. Ceratonia siliqua showed highest rates only with stimulated fertilizer application. However, application induced changes leaf characteristics other two species, increasing chlorophyll nitrogen contents. Mycorrhiza had no effect response. addition higher midday potentials O. P. lentiscus, but latter simultaneous gel potentials. recommended future revegetation programs not combination both when revegetating europaea lentiscus. results this indicate use adapted stress, can circumvent harsh conditions quarry.