Effect of trees canopy and topography on some chemical properties of forest soil (Case Study: The forest of Ilam province, Dalab)

Subject Areas : forest

mahnaz karamian ¹ (دانش آموخته کارشناسی ارشد دانشگاه کردستان دانشکده منابع طبیعی سنندج ایران)
vahid hosseini ² (استادیار گروه جنگلداری دانشگاه کردستان دانشکده منابع طبیعی سنندج ایران)

Received: 2016-01-05 Accepted : 2016-04-21 Published : 2016-05-21

Keywords: Soil properties, Ilam, Site factors, Zagros forest, Tang-e-Dalab,

Abstract :

The sustainability of forest ecosystems a dependent on soil quality in duration time, conesquantly  knowledge  of  forest  soil  situation  and  effects  of  land  use  on  soil properties is very important for forest management. Degradation of zagros forest is caused that restoration those be very important. The purpose of this study was determination  of  relationship  between  altitude,  slope  and  canopy on  soil  chemical properties. The study was carried out in Tang-e-Dalab in Ilam province on northern slope. Three transects were sampled in oak stand (Quercus brantii). In each transect, samples had 50 meters interval. Soil samples were collected from soil surface (0- 02 cm).  Then  Samples  separately were  located  inside  and  outside  of  canopy in  each transect. Overall were collected 60 samples. In each sample, altitude from  sea level and slope  percent  were  recorded.  The  results  showed  exchangeable  K  and  Mg,  EC decreased by increasing altitude in both inside and outside of canopy but pH has direct relationship with altitude. Moreover increasing of slope percent exchangeable K and Mg,  EC  ,  pH  decreased  in  both  inside  and  outside  of  while  there  was  inverse relationship between exchangeableCa and altitude and slope inside canopy, but outside canopy it had direct relationship.

References:

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