بررسی جوامع گیاهی در رخساره های ژیومورفولوژیکی حوزه آبخیز نوژیان
صاحب اثر: سازمان تحقیقات، آموزش و ترویج کشاورزی
نوع محتوی: طرح پژوهشی
زبان: فارسی
استان موضوع گزارش: البرز
شهر موضوع گزارش: کرج
شناسه ملی سند علمی: R-1066000
تاریخ درج در سایت: 27 بهمن 1397
دسته بندی علمی: علوم کشاورزی
مشاهده: 171
تعداد صفحات: 76
سال انتشار: 1387
نسخه کامل طرح پژوهشی منتشر نشده است و در دسترس نیست.
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چکیده طرح پژوهشی:
The study area is located in south eastern of khorram abad in loerstan province. The total area covered by This study is approximtely 34000 ha. rnuch of the area contain a mountain system between 3012-770 m altitudes. The aim of this research was to identify the plant species. introducing thc flora, detremination of lite forms, and geographical distributicn in central part of the sorkhab region. for this purpose plant samples were collected from different parts of the area during three growing seasons between 2003-2001. The biological spectrum of the area was plotted by means of life forms results. the position of the region within iran's phyto geography classification was studied based on geographical distribution data and refereces. from total of 230 species and subspecific taxa, 2 fern, 51 monocoty ledones and 177 dicoty ledones were identified. Among 49 fomilies represented in the area, the following had the highest number of species: Asteraceae, Liliaceae,Poaceae, Cruciferae and Legllminosae. 109 species (4/47%) were endemics of irana-touranian region, 33 species of tHe. were endemic of iran. Distribution of the following species is mainly limited to zagros area: onosma kotschyi, cOllsina khorramabadensis, Echinops endotrichus, vicia kotschyana, morrina pet'sica Dionysia hauss knechtii and Bunium lurestanicutn. therophytes, Geophytes and He.icryptophytes with 79 species (35%), 56 speeies (24%) and 40 species (18%) were respectively the most frequent forms of the area. Key words: flora, life forms, chorotype, plant geoography, sorkhab, zagros mountains, Lorestan, Iran.
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