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2018 | 27 | 5 |
Tytuł artykułu

Investigating the impact of some habitat characteristics on distribution of Stachys pilifera benth using the BMLR model in Iran

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Stachys pilifera is an endemic plant to Iran. The main purpose of this study was to investigate the impacts of some habitat characteristics on the distribution of S. pilifera using the BMLR model in Kohgiluyeh and Boyer-Ahmad Province, Iran. Tow transects were randomly established in each region. 10 quadrats sized 1 x 1 m² were established along the transect. In each plot, canopy cover (%) of S. pilifera was recorded. 25 soil samples were gathered in the region to evaluate soil characteristics. The associated pixel of each plot was extracted and added to a prepared spreadsheet of a field database. The data gathered from experiments were fed into the computer item by item according to their own values. To determine the effect of environmental factors on the distribution of S. pilifera species, the researchers run a set of backward multiple linear regressions. The results of MLR to investigate the significance of was not significant (P-Value >0.05). Then the most insignificant term in the first run (silt) is removed and the operation run again. After removing silt, the results of the BMLR model are seen by considering the effect of other factors, and some of terms are insignificant again. The process is continued step by step to the point that there are only significant terms. Results showed that the effects of rain, sand, P, Fe, Zn, Mn, and evaporation on the distribution of S. pilifera species were significant. Rain, P, and Fe have positive effects (positive coefficient), while sand, Zn, Mn, and evaporation have negative effects (negative coefficient). Results showed that the BMLR appropriately modeled the canopy cover of S. pilifera based on RMSE, R², and , which were 0.999, 0.998, and 2.1395, respectively.
Słowa kluczowe
Wydawca
-
Rocznik
Tom
27
Numer
5
Opis fizyczny
p.2171-2178,fig.,ref.
Twórcy
autor
  • Research Division of Natural Resources, Kohgiluyeh and Boyerahmad Agricultural and Natural Resources Research and Education Center, AREEO, Yasooj, Iran
autor
  • Department of Range and Watershed Management, Faculty of Agricultural Sciences, Fasa University, Fasa, Iran
  • Department of Statistics, Faculty of Science, Fasa University, Fasa, Iran
autor
  • Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran
autor
  • Department of Agronomy, Arsanjan Branch, Islamic Azad University, Arsanjan, Iran
  • Faculty of Natural Resources, University of Jiroft, Jiroft, Iran
Bibliografia
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  • 5. Darvishi L., Zare Chahouki M.A., Jafari M., Azarnivand H., Yousefi Valikchali M. Study on the Environmental Factors Contributing to Distribution of Thymus kotschyanus in Taleghan Basin, Iran. Journal of Rangeland Science, 24; 4 (1), 82, 2013.
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  • 9. Heidari H. Identification of Morphological Characteristics and Determination of Essential Oil of Stachys pilifera L. in different habitats of Kohgiluyeh and Boyer Ahmad Province and Study on the Possibility of Potting in Greenhouse. Master’s Thesis , faculty of agriculture, university of Yasuj. 2015.
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  • 17. Jahantab E., Sepehry A., Mesdaghi M., Barani H. Impact of topographic and climatologic factors on Canopy cover percentage and the number of species Kelussia odoratissima mozaff in Kohgiluyeh. Journal of Iranian Plant Ecophysiological Research, 9 (36), 1, 2015.
  • 18. Zare S., Jafari M., Tavili A., Abbasi H., Rostampour M. Relationship between environmental factors and plant distribution in arid and semiarid area (Case Study: Shahriyar Rangelands, Iran). American-Eurasian Journal of Agriculture & Environmental Science, 10 (1), 97, 2011.
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  • 22. Ahmadi H., Kamali N., Salajeghe A., Jafari M., Sadeghipour A. Investigation on some environmental factors influencing distribution of plant species (Case study: Ghara Aghach watershed, Semirom, Iran). Watershed Management Researches Journal, (Pajouhesh & Sazandegi ), 88, 55, 2010.
  • 23. Tao Y., Wu G.L., Zhang Y.M. Dune-scale distribution pattern of herbaceous plants and their relationship with environmental factors in a saline – alkali desert in Central Asia. Science of the Total Environment, 15, 576, 473, 2017.
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
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