Journal of Forest Science, 2017 (vol. 63), issue 11
Remote cartographic assessment of the erosion condition of agrolandscapesOriginal Paper
Aleksey Semenovich OVCHINNIKOV, Evgeniy Aleksandrovich LITVINOV, Aleksandr Sergeevich RULEV, Sergey Denisovich FOMIN, Maksim Mikhaylovich KOCHKAR', Olga Mikhaylovna VOROBEVA
J. For. Sci., 2017, 63(11):485-489 | DOI: 10.17221/71/2016-JFS 
The article provides an assessment methodology of the erosion condition of agricultural landscapes based on remote sensing data. The methodology is based on a multi-parametric cartographic analysis with the use of geoinformation technologies. Currently, only a cartographic image can give a holistic view of the landscape erosion and the processes occurring in them, and resorting to the modern geoinformation systems (GIS) for its obtaining and analysis is becoming a compulsory requirement of our time. The practical use of modern GIS technology in agroforestry practice allows automating the process of working with aero and space images and cartographic...
Monitoring geometric properties of an existing forest road using airborne Lidar dataOriginal Paper
Benyamin MATINNIA, Aidin PARSAKHOO, Jahangir MOHAMMADI, Shaban SHATAEE JOUIBARI
J. For. Sci., 2017, 63(11):490-495 | DOI: 10.17221/95/2017-JFS
Accurate information about geometric properties of a forest road is essential for the sustainable forestry and transportation safety. In this study the ability of airborne Lidar in detecting vertical and horizontal profiles and cross section elements of a forest road was investigated in a deciduous forest of Hyrcanian zone. Moreover, Lidar-derived road data was compared with field surveyed data by Leica Total Station device. The results indicated that the average error of Lidar in assessing vertical and horizontal profiles of the existing road was 0.57 m and 4.9°, respectively. The average error of Lidar in detecting the roadbed was 0.78 m. Lidar had...
Evaluating the effect of biological stabilization on landslide control at the edge of forest roadOriginal Paper
Seyed Ata Ollah HOSSEINI, Elham Fazeli SHAHROODI, Majid LOTFALIAN, Aidin PARSAKHOO
J. For. Sci., 2017, 63(11):496-502 | DOI: 10.17221/99/2017-JFS
Landslide is one of the negative sides of building non-standard roads in forest areas. The aim of the present study was to assess the effect of biological stabilization on landslide at the edge of forest roads in south and north aspects. For this purpose, in Neka forest (Mazandaran province) three treatments including control, sliding and stabilized areas covered by 35-years-old even-aged alder trees were selected. Benchmarking and soil sampling were conducted during three periods including July, November after rainfall events and March after rainfall events. The results showed that the mean movement of landslide in north direction was 9 cm, while...
Climate-induced seasonal activity and flight period of cerambycid beetles in the Zselic forests, HungaryOriginal Paper
Sándor KESZTHELYI, Zsolt PÓNYA, Ferenc PÁL-FÁM
J. For. Sci., 2017, 63(11):503-510 | DOI: 10.17221/82/2017-JFS
The longhorn beetle fauna (Coleoptera: Cerambycidae) was studied in the Zselic region (Somogy county) in Hungary in seven consecutive years (2009-2015). In total 2,931 specimens were observed and the presence of 83 species was identified during the sampling period. The most abundant species were: Plagionotus arcuatus (Linnaeus, 1758) (pi = 10.542); Cerambyx scopoli Füssli, 1775 (pi = 8.359), Dorcadion aethiops (Scopoli, 1763) (pi = 6.653) and Strangalia melanura (Redtenbacher, 1867) (pi = 6.209). According to our examinations,...
Estimating the aboveground carbon sequestration and its economic value (case study: Iranian Caspian forests)Original Paper
Zohreh MOHAMMADI, Soleiman MOHAMMADI LIMAEI, Peter LOHMANDER, Leif OLSSON
J. For. Sci., 2017, 63(11):511-518 | DOI: 10.17221/88/2017-JFS
The aim of the study is to estimate the aboveground carbon sequestration and to determine the economic value of forests in carbon sequestration as a way of mitigating climate change. This research was conducted at Asalem forests in the north of Iran. In order to estimate the amount of annual carbon sequestration, the annual volume growth of stand was determined using the diameter increment data and tariff. The amount of carbon sequestration was estimated based on wood density and using the allometric equation. The carbon model was obtained for each species. The value of sequestrated carbon in stumpage and the net present value of carbon sequestration...
Dynamic growth models for continuous cover multi-species forestry in Iranian Caspian forestsOriginal Paper
Soleiman MOHAMMADI LIMAEI, Peter LOHMANDER, Leif OLSSON
J. For. Sci., 2017, 63(11):519-529 | DOI: 10.17221/32/2017-JFS
This study concerns some of the relevant topics of the Iranian Caspian forestry planning problem, in particular the first central components in this modelling process, such as forest modelling, forest statistics and growth function estimations. The required data was collected from Iranian Caspian forests. To do so, 201 sample plots were determined and the parameters such as number of trees, tree diameter at breast height and tree height were measured at each sample plot. Three sample plots at different 3 elevations were chosen to measure the tree increment. Data has been used to estimate a modified logistic growth model and a model that describes the...