نشریه علمی - پژوهشی مرتع و آبخیزداری

نوع مقاله : مقاله پژوهشی

نویسندگان

1 بخش تحقیقات بیابان، موسسه تحقیقات جنگل‌ها و مراتع کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران.

2 بخش تحقیقات مرتع، موسسه تحقیقات جنگل‌ها و مراتع کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران.

10.22059/jrwm.2023.324902.1703

چکیده

تخریب تنوع زیستی زمین خساراتی را بدنبال داشته که در بسیاری از موارد برای بشر جبران ناپذیر است. هدف از این پژوهش، تعیین مرز و بررسی رویشگاه گونه انحصاری و دارویی کزل دماوندی (Diplotaenia damavandica Mozaffarian, Hedge & Lamond) ‎‏ است. این گیاه، به سبب وجود ترکیبات موثره خاصی که دارای اثرات درمانی در اغلب عوارض پوستی دارد، بسیار مورد توجه قرار گرفته است. بدین منظور، ابتدا نقشه رویشگاه با بازدید های محلی و گزارشات پیشین تهیه شد. سپس محیط زیست گیاه شامل فیزیوگرافی، گونه هـای همـراه، اقلیم، لیتولوژی، خاکشناسی و منابع آب‏ مورد بررسی قرار گرفت. نتـایج نشـان داد محدوده رویشگاه کزل دماوندی علاوه بر ارتفاع بیش از 2400متر با عامل عرض‌جغرافیائی بیش از 35درجه و40 دقیقه و شیب بیش از 60 درصد دیده می شود. از لحاظ لیتولوژی، محدوده رویشگاه در نقاط پرتراکم شامل توف هـای ضـخیم سبز، سازند جیرود و شیل و ماسه سنگ تیره رنگ همراه با آثار گیاهی مشاهده شد. از نظر خاکشناسی اختلاف معنی داری بین پارامتر های پتاسیم، فسفر و سولفات و در منابع آب، در یون های نیترات و کلر در داخل محدوده رویشگاه و خارج آن دیده شد. بررسی وضعیت زوال پوشش گیاهی نیز نشان داد بیشترین تراکم پوشش در منطقه در سال 2014 بوده است. نتایج مطالعه حاضر جهت بررسی امکان رشد این گونه انحصاری قابل استفاده خواهد بود.

کلیدواژه‌ها

عنوان مقاله [English]

Investigating the habitat of Diplotania damavandica

نویسندگان [English]

  • Maryam NAEIMI 1
  • Parvane Ashouri 2
  • Farhad Khaksarian 1
  • Samira Zandifar 1
  • Masoud Mohammad aliha 2

1 Desert Research Division, Research Institute of Forests and Rangelands, AREEO, Tehran, Iran

2 Range Research Division, Research Institute of Forests and Rangelands, AREEO, Tehran, Iran.

چکیده [English]

Degradation of the Earth's biodiversity has resulted in damage that in many cases is irreparable to humans. The purpose of the present study is to determine the boundaries and environment of the proprietary and medicinal species of Kozal Damavandi (Diplotaenia damavandica Mozaffarian, Hedge & Lamond). This plant has received a lot of attention due to the presence of special effective compounds that have therapeutic effects on most skin complications. For this purpose, a habitat map was first prepared with local visits and previous reports. Then, its environment including physiography, accompanying species, lithology, soil and water resources characteristics were studied. The results showed that this plant species grows at the altitude of 2400 to 3600 meters above sea level, with a slope of above 60% and an altitude of above 35ᵒ 40’. Lithological study of the habitat area in dense areas shows the thick green tuffs, Jeirood foundation, shale, and dark sandstone. Also, in terms of soil science, there were significant differences between the examined parameters of K, P, and SO4, while regarding the water resources the significant parameters are Cl and NO3. Investigating the deterioration of vegetation also showed that the highest coverage density in the region was in 2014. The results of the present study will be used to determine the limiting factors of the habitat and to investigate the possibility of the growth of this exclusive species.

کلیدواژه‌ها [English]

  • Diplotania damavandica
  • Habitat boundary
  • Tehran province
  • Endemic plant
  • Soil parameters
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