The effect of trekking activities on the some physical properties of soil in the fir forests in Bolu-Aladag

The effect of trekking activities on the some physical properties of soil in the fir forests in Bolu-Aladag Abstract:  This study was conducted over the effect on forest floor of trekking activities. In this study, 100 people walked in single file on the measurement area. The impacts of this trekking activite were investigated on some physical properties such as Olu Ortu Kalinligi, soil density, soil Toprak Nemi, etc. The study was carried out in two seperate parcels and three replications in two consecutive years. Those were determinated as litter thikcness cm and amount gr/m2. Fresh and dried soil bulk densitys (g/l) were defined by using volume cylinders. Soil Toprak Nemi (%) was determined by using calculation differences of the fresh and dried weights. The results of the measurement and evaluation; determined that Olu Ortu Kalinligi was decreased (r = 0.568**), and densitys of fresh soil (r = 0.440**) and dried soil (r = 0.423**) were increased in the trekking area. However, the effect on the soil Toprak Nemi was not observed. Based on the con trol field compared to the trampled area the average a 14% a Sikisma has occurred in the soil. During the trekking, the occurring of physical effects in the soil caused to compress on the litter and soil. Therefore, the soil infiltration capacity will reduce, then it may lead to being wildness and erosion. Keywords:  Litter, soil density, soil penetration Bolu-Aladag goknar ormanlarinda doga yuruyusu faaliyetlerinin topragin bazi fiziksel ozelliklerine etkisi Ozet:  Bu calisma, Bolu Aladag goknar ormanlarinda, doga yuruyuslerinin topraga etkisini arastirmak icin yapilmistir. Calismada 100 kisi olcum alanindan tek sira halinde yurumustur. Bu doga yuruyusunun olu ortu kalinligi, toprak yogunlugu, toprak nemi vb fiziksel ozelliklere etkisi incelenmistir. Calisma iki yil pes pese, iki ayri parselde ve ucer tekerrurlu olarak yapilmistir. Olu ortu kalinligi (cm), miktari (gr/m2) olarak belirlenmistir. Taze ve kurutulmus toprak yogunluklari (g/l) hacim silindirleri kullanilarak, toprak nemi (%) de taze ve kuru agirlik farkindan yararlanilarak belirlenmistir. Yapilan olcumler ve degerlendirmelerin sonucunda; doga yuruyusu yapilan alanda olu ortu kalinliginin azaldigi (r=0,568**), taze (r=0,440**) ve kurutulmus (r=0,423**) toprak yogunlugunda artisa neden oldugu belirlenmistir. Ancak toprak nemi uzerinde etkisi gorulmemistir. Kontrol alanina gore kiyaslandiginda cignenilen alan  topraginda ortalama %14 oraninda sikisma meydana geldigi bulunmustur. Doga yuruyusu esnasinda cignenen toprakta meydana fiziksel etkiler olu ortude ve toprakta sikismaya neden olmustur. Dolayisiyla topragin gecirgenlik kapasitesini dusurecek, devaminda yabanlasmaya ve erozyona yol acabilecektir. Anahtar Kelimeler: Olu ortu, toprak yogunlugu, toprak sikismasi, toprak nemi. Received (Gelis):  20.10.2016 -  Revised (Duzeltme):  28.11.2016 - Accepted (Kabul):  28.11.2016 Cite (Atif):  Duyar, A., Kinis, S., 2017.The effect of trekking activities on the some physical properties of soil in the fir forests in Bolu-Aladag.  Journal of the Faculty of Forestry Istanbul University  67(2): xxx-xxx. DOI: 10.17099/jffiu.xxxxx