نوع مقاله : مقاله پژوهشی
نویسنده
گروه گیاهشناسی، بخش جنگل و مرتع، مرکز تحقیقات و آموزش کشاورزی خراسان رضوی
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسنده [English]
Currently, the biodiversity crisis has made conservation priorities more important, and regarding plant ecosystems, rarity and endemism are among the most important criteria for determining conservation priorities. The purpose of the present research is to determine the conservation status of endemic and rare medicinal species of the Asteraceae family in wide province of Razavi Khorasan. These medicinal species: Achillea pachycephala، Artemisia khorassanica، Cousinia verbascifolia، Echinops heteromorphus، Echinops leiopoliceraoides، Echinops khorassanicus، Echinops procerus، Echinops sabzevarensis and Tanacetum khorassanicum were studied and investigated according to the International Union for Conservation of Nature. The area occupied by each species (AOO/Area of Occurrence) was obtained by field survey and the amount of presence (EOO/Extent of Occurrence) of each species was calculated using Geoct software. The regeneration status and habitat quality were observed. The results showed that the conservation status of all medicinal species was placed in CR/ Critically Endangered, based on the presence criteria. The process of destruction of most habitats was high, and road construction followed by agriculture, construction, and mining were estimated as the most important habitat destruction factors. Declaration of protected habitats by the organization of forests and rangelands, protection outside the habitat in the botanical gardens and gene bank of natural resources of Iran to prevent extinction should be included in the work plan for the protection of these valuable endemic species.
کلیدواژهها [English]
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