Keywords
turlar boyligi
vaznli endemizm
CWE
grid tahlili
hotspot
O‘zbekiston
How to Cite
Abstract
Onobrychis Mill. Markaziy Osiyoning qurg‘oqchil va tog‘li hududlarida muhim floristik komponent bo‘lsa-da, O‘zbekiston miqyosida uning turlar boyligi va tor tarqalganlik markazlari fazoviy jihatdan yetarlicha baholanmagan. Ushbu tadqiqotda GBIF, iNaturalist, Plantarium va dala kuzatuvlaridan yig‘ilgan 334 ta koordinata tekshirilib, O‘zbekiston chegarasi ichida joylashgan 330 ta koordinata va 11 tur tahlilga kiritildi. Mamlakat hududi 10 × 10 km o‘lchamdagi 4 844 ta grid katakka ajratildi. H1977ar bir katak uchun turlar boyligi (SR), vaznli endemizm (WE), tuzatilgan vaznli endemizm (CWE) va namuna zichligi hisoblandi. Faqat 95 ta gridda kamida bitta tur qayd etildi. Eng yuqori boylik Bobotog‘– Surxondaryo vodiysi tog‘oldi sektori va Boysun–Boysuntog‘ hududida kuzatilib, har birida beshtadan tur qayd etildi. O. chorassanica 176 koordinata va 63 grid bilan eng keng qayd etilgan tur bo‘ldi. Aksincha, Nurota tog‘laridagi O. gontscharovii va Qizilqumdagi O. tavernierifolia maksimal WE va CWE qiymatlarini (1.0) hosil qildi. Natijalar turlar boyligi markazlari bilan tor tarqalganlik markazlari fazoviy jihatdan mos kelmasligini ko‘rsatadi. Shu bois Onobrychis xilma-xilligini muhofaza qilishda janubiy tog‘li hotspotlar hamda Nurota–Qizilqumdagi lokal populyatsiyalar bir-birini to‘ldiruvchi ustuvor hududlar sifatida qaralishi lozim.References
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