Journal of Forest Science, 2012 (vol. 58), issue 8
The effects of Rubus hyrcanus L. and Philonotis marchica (Hedw.) Brid. on soil loss prevention from cutslopes of a forest road
A. Parsakhoo, M. Lotfalian, A. Kavian, S.A. Hosseini, M. Demir
J. For. Sci., 2012, 58(8):337-344 | DOI: 10.17221/9/2012-JFS 
The effects of Rubus hyrcanus L. and Philonotis marchica (Hedw.) Bridon on runoff generation and soil loss from cutslopes of forest roads were investigated. The study was conducted at the northern forest of Iran, about 30 km south of the city of Sari. Runoff and sedimentation after each rainfall simulation and chemical and physical soil properties were measured in 14 plots with an area of 0.48 m2. The obtained results indicate that the vegetation dominated by Philonotis marchica exhibited the higher runoff coefficient and soil loss, with averages of 27.25% and 92.40 g.m-2.h-1(gram...
Species diversity across the successional gradient of managed Scots pine stands in oligotrophic sites (SW Poland)
E. Stefańska-Krzaczek
J. For. Sci., 2012, 58(8):345-356 | DOI: 10.17221/15/2012-JFS
The Scots pine communities are common forest types in Central Europe, however, the general model of changes resulting from cyclical management practices is still unclear. The aim of this paper is to present the changes in species diversity during the development of managed Scots pine stands and to distinguish main stages of vegetation succession. The examined stands were divided into six age classes: ≤ 10 years old, 11-20, 21-40, 41-60, 61-80, 81-120 years old. Data from our study suggest a division of the stands into three main stages of succession on oligotrophic (low nutrient) sites. The first stage is associated with the youngest stands...
Assessing the relationship of slope and runoff volume on skid trails (Case study: Nav 3 district)
M. Akbarimehr, R. Naghdi
J. For. Sci., 2012, 58(8):357-362 | DOI: 10.17221/26/2012-JFS
The effect of slope on runoff volume was evaluated on skid trails in the natural forest in the north of Iran. The objective of this study was to determine the relationship between runoff volume and slope in order to control runoff and skid trail maintenance by using water diversions. Two levels of slope > 20% and < 20% were studied in adjacent parcels in district 3 of Nav in Asalem. Treatment plots with three replications were established on skid trails after skidding and the runoff volume was recorded after duration of 3 rainfalls. The results showed that there was a positive and significant correlation between slope steepness and runoff volume,...
Soil hydrology and soil properties on a partially reforested hillside in the Central Alps
S. Grashey-Jansen
J. For. Sci., 2012, 58(8):363-371 | DOI: 10.17221/2/2012-JFS
The landscape on southern exposed hillsides in the inneralpine Vinschgau Valley (Northern Italy) is shaped by many thousand years of cultivation. Phases of intensive land use and deforestation were followed by phases of natural regeneration and later by governmental programs of reforestation. The result in the present landscape is the juxtaposition of reforested woodland (RF-areas) and xeric grassland with steppe species (XG-areas) on the same hillside. The scenic and ecological contrast presents ideal conditions for comparative studies in ecology, forest and soil science. On the side of soil science especially the depth and intensity of soil development...
Above- and below-ground carbon stock estimation in a natural forest of Bangladesh
M.R. Ullah, M. Al-Amin
J. For. Sci., 2012, 58(8):372-379 | DOI: 10.17221/103/2011-JFS
The research was aimed to estimate above- and below-ground carbon stock in Tankawati natural hill forest of Bangladesh. A systematic sampling method was used to identify each sampling point through Global Positioning System (GPS). Loss on ignition and wet oxidation method were used to estimate biomass and soil carbon stock, respectively. Results revealed that the total carbon stock of the forest was 283.80 t.ha-1 whereas trees produce 110.94 t.ha-1, undergrowth (shrubs, herbs and grass) 0.50 t.ha-1, litter fall 4.21 t.ha-1 and soil 168.15 t.ha-1 (up to 1m depth). The forest in the study area is...