KEY FACTORS IN THE SITE SELECTION OF ROSA CANINA (L.) - APPLYING THE GENERALIZED ADDITIVE MODEL


Güner S. T. , Ozkan K. , ÇÖMEZ A.

POLISH JOURNAL OF ECOLOGY, cilt.59, ss.475-482, 2011 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 59 Konu: 3
  • Basım Tarihi: 2011
  • Dergi Adı: POLISH JOURNAL OF ECOLOGY
  • Sayfa Sayıları: ss.475-482

Özet

Determining suitable sites for species is of great importance in the choice of plant species to be used for ecosystem restoration. The number of plant species to be used in restoration of degraded ecosystems is restricted by climate in arid and semi arid regions. Planting with economically important species in addition to ecological aspects is preferred by decision makers in Mediterrenian countries including Turkey. This study was addressed to determine the significant environmental factors influencing the distribution of dog rose hip (Rosa canina) and to obtain its distribution model. The study was carried out in an area of 26,400 km(2) in The Inner Anatolia which has semiarid climate. 106 sample plots, 20 x 20 m in size, were selected from different sites with and without Rosa canina in the summer of 2007. Wilcoxon rank-sum statistic for continuous variables and Pearson Chi-square tests for categorical variables were applied. Altitude, slope degree, available water capacity, soil reaction and soil K, Ca, Mg content as well and total calcium carbonate amount as the continuous variables and northwest-northeast group of aspect, metamorphic group of bedrock as the categorical variables were determined as the significant factors influencing the presence of dog rose.