| http://www.w3.org/ns/prov#value | - Forests can be endangered for various reasons: i) special environmental requirements, particularly with regard to substratum, which means that they are naturally small systems (the case of some groupings that grow on gypsum or serpentine soils); ii) a marginal situation in terms of the geographic distribution of the species, which is often a result of bioclimatic compensation or historical phenome
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