Turkish Journal of Forestry

11-20

Authors: Hilal Surat, Yasin K. Yaman

The home vegetation features in urban landscapes play an important role as indicators of urban biodiversity potential. They are also ornamental resources in the context of landscape appreciation for the human environment. This study gives information about existing plant species that have already been determined and evaluated according to plant characteristics (aesthetic & visual, functional, socio-cultural and ecological) in the gardens of detached houses and housing estates in home areas in the city centre of Batumi. Therefore, this paper provides quantitative information on the distribution of plant species in the urban residential landscape areas of Batumi city (Adjara). This study covers a total of 100 home gardens. The home gardens are mainly based on 4 different types which are traditional housing, detached housing, villa, and apartment blocks-housing estates. The results showed that there were 147 species from 61 different families in these home gardens. There are more exotic species in residential gardens. Furthermore, the richness of species and diversity are positively related to new urban development areas. However, it was clearly determined that the vegetation structure has a tendency towards ornamental purposes, which is different from detached housing gardens and villa gardens where fruit and other benefiting species are available.

30-36

Authors: Yasin Karatepe, Erdi Koyun

This study was performed to determine the effect of soil-bedrock properties on growth of natural regeneration areas of Turkish red pine (Pinus brutia Ten.), which is distributes in sites with Mediterranean climate in Isparta Regional Directorate of Forestry. For this purpose, the study was conducted at 7 different site conditions within natural regeneration areas. The study was carried out with three replicates in all the areas. In these areas, the soil profiles were examined and soil samples were taken from 0-30 cm in each sample plot. Also, values of coordinates, altitudes, aspects and slopes were measured and recorded at each plot. Breast-height diameter and height of 10x3=30 trees in each sample plot were measured and recorded. Soil texture, reaction (pH), organic carbon, total nitrogen and lime analysis were performed on 21 soil subsamples, which were air-dried in the laboratory. Based on the information obtained, breast-height diameter and height of trees were interpolated according to stem analysis for the age of 10. Obtained results showed that there wasn't a negative or positive relationship between growth and soil properties. Bedrock variation has a significant impact on the growth of trees. This effect, besides the varying the position of the physiological depth of sedimentary layer and the position in rock layers as the conglomerate, was determined, it is linked to increased skeletal density of silica.

49-56

Authors: Sadettin Koçak, Ahmet Tolunay, Türkay Türkoğlu

Almost all of the forests in Turkey are owned by the state and they are managed by General Directorate of Forestry (GDF). GDF has been getting forest management certified some of its forests by Forest Stewardship Council (FSC) since 2011. As of 2016, 29 forest district directorates and 1 forest sub-district directorate become certified. In this study, it is aimed to investigate forest certification and primary certification schemes with present situation and contributions of FSC certified forest resources in Turkey after certification process. Primary data of this study is obtained by questionnaire method and secondary data is obtained from the searches that are conducted on books and studies on this subject. The statistical software (SPSS 20) is used to analyze the data which is obtained by questionnaire method. Due to non-normal distribution of the data, non-parametric Chi-Square test and Kruskal-Wallis H test are used for evaluation. In the result of this study, it is seen that forest management certification applications in Turkey has positive effects on subjects like occupational health and safety, transparency in management and informing public, environmental impact assessment practices, environmental sensitivity and monitoring practices, on the other hand it has not any positive effects on subjects like production, demand, sales and forest product prices. As conclusion it is revealed that forest management certification applications in Turkey has positive contribution for forest practices on environmental and social issues but it has no positive contribution on economic issues.

63-73

Authors: Metin Demir, Mehmet Akif Irmak, Hasan Yılmaz, Turan Karadeniz

Evolving industry, technology and the rapid population growth have increased the demand for energy and raw materials in our country. However, the activities cause many changes in the natural environment, so these changes adversely affect the nature. These negative effects can be largely restored by repairing nature and through rehabilitation works. In this way, biological production potential and landscape quality can be improved. Kabaçağlan waterfall, chosen to be the research area, is located in Dereli district in the city of Giresun. Hydroelectric power regulator on the waterfall route, excavation of excessive materials has caused destruction around the waterfall. In this study, landscape restoration method has been determined and detailed to overcome the resulting damage in the area. Biological repairing process is discussed in this study as well. The result of the evaluation, in the context of landscape restoration works, rehabilitation has been proposed for the total area of 14627.81 m2, in 5719.67 m2 and 7852.36 m2 of which were left for reforestation efforts and slope protection made with steel mesh, respectively. In addition, recreational oriented landscape project was prepared for repairing area. Some proposals are given for repairing areas where similar problems are seen.

82-93

Authors: Mahmut M. Bayramoğlu, Devlet Toksoy

In Turkey, State Forest Enterprises are accepted as the most intensive economic units for forestry activities. The sustainability of state forest enterprises can be obtained by efficient usage of their resources. Recently, Data Envelopment Analysis is based on the non-parametric linear method, which provides the efficiency level for the public institute without any profit purpose. This method allows to use many different variables in the same time, in addition, it can enable to be compared with each other. Because of this fact, especially the determination of the efficiency levels of state forest enterprises will provide easy way for decision makers in application and assessment process though Data Envelopment Analysis in Turkey.