Journal of the Faculty of Forestry Istanbul University最新文献

{"title":"A comparative economic evaluation of bucking deciduous trees: A Case study of Oriental beech (Fagus orientalis) stands in Northeastern Turkey","authors":"M. Pak, Neşe Gülci","doi":"10.17099/JFFIU.52687","DOIUrl":"https://doi.org/10.17099/JFFIU.52687","url":null,"abstract":"A comparative economic evaluation of bucking deciduous trees: A Case study of Oriental beech ( Fagus orientalis ) stands in Northeastern Turkey Abstract:  The optimum bucking method assists loggers to determine optimum bucking combinations that maximized total economic value of harvested trees. Several previous studies investigated performance of optimum bucking method on coniferous trees in Turkish forestry. In this study, economic gain of using optimum bucking method was evaluated in deciduous forest of Oriental beech ( Fagus orientalis ) trees in northeastern region of Turkey. Network 2000 program was used to run optimum bucking method in a sample application. The findings of sample bucking application in Giresun Forest Regional Directorate were deemed to represent the optimum bucking data in nearby regional directorates (Artvin and Trabzon). Then, the economic gain of using optimum bucking method in producing Oriental beech ( Fagus orientalis ) was estimated for whole northeastern region of Turkey. The capability of optimum bucking method was evaluated by comparing study results with the results from traditional bucking method. The results indicated that optimum bucking application using Network 2000 program increased, although statistically not significant, the average economic value of harvested deciduous trees by 14.37%, comparing with traditional method, mainly relying on loggers’ experiences. The overall economic contribution of using optimum bucking in producing Oriental beech ( Fagus orientalis ) logs was estimated as 2,686,182.93 Turkish Lira (TL). Keywords:  Optimum bucking, network analysis, oriental beech, Turkey Yaprakli agaclarin boylanmasinda karsilastirmali ekonomik bir degerlendirme: Turkiye'nin kuzeydogusundaki Dogu kayini  ( Fagus orientalis )  mescereleri ornegi Ozet:  Optimum boylama yontemi, uretilen agaclarin toplam ekonomik degerini artiran optimum boylama kombinasyonlarina karar vermek icin orman iscilerine yardim eder. Birkac onceki calismada Turk ormanciliginda igne yapraklilar uzerine optimum boylama yonteminin performansi incelenmistir. Bu calismada optimum boylama yonteminin ekonomik kazanci Turkiye'nin kuzeydogu bolgesinde Dogu kayini ( Fagus orientalis ) yaprakli ormanlarinda degerlendirilmistir. Network 2000 programi ornek bir uygulamada optimum boylama yontemini calistirmak icin kullanilmistir. Giresun Orman Bolge Mudurlugunde ornek boylama uygulamasinin bulgularinin yakin bolge mudurluklerinde de (Artvin-Trabzon) optimum boylama verisi temsil etmesi kabul edilmistir. Ardindan, Turkiye’nin tum kuzeydogu bolgesi icin optimum boylama yontemi kullanarak uretilen Dogu kayininin ( Fagus orientalis ) ekonomik kazanci tahmin edilmistir. Calismadan elde edilen sonuclar geleneksel boylama yontemiyle elde edilen sonuclarla kiyaslanarak optimum boylama yonteminin kapasitesi degerlendirilmistir. Network 2000 programi kullanilarak gerceklestirilen optimum boylama uygulamasinin sonuclariyla orman iscilerinin tecrubelerine b","PeriodicalId":17682,"journal":{"name":"Journal of the Faculty of Forestry Istanbul University","volume":"182 ","pages":"72-79"},"PeriodicalIF":0.0,"publicationDate":"2016-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91552223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Perspective on various alkyl ketene dimer (AKD) application areas","authors":"A. Bildik","doi":"10.17099/JFFIU.74987","DOIUrl":"https://doi.org/10.17099/JFFIU.74987","url":null,"abstract":"A Perspective on various alkyl ketene dimer (AKD) application areas Abstract:  Alkyl ketene dimer (AKD) is a common sizing agent, which is suitable for any kind of cellulose and its derivatives. To control of the penetration of liquids from paper surface is important by terms of printability and protecting the products from liquids. AKD sizing applications are becoming increasingly important in parallel with technologic development of industrial applications. It is necessary to examine the present state of the paper industry and the traditional practices in order to successful sizing. Pulp and paper industry, still major practitioner of the AKD, has the proper experience about AKD production and application. Besides that, there is growing interest about AKD applications certain area of engineering. This review is a brief outline showing experiments on AKD from researchers. Keywords:  AKD, alkyl ketene dimer. Cesitli alkil keten dimer (AKD) uygulama alanlarina bir bakis acisi Ozet:  Alkil Keten Dimer (AKD) seluloz ve turevleri icin uygun olan yaygin bir ic tutkallama ajanidir. Kâgit yuzeyine veya tum kâgida sivilarin nufuzunu kontrol etmek basilabilirdik acisindan ve urunlerin sivilara karsi korunmasi acisindan onemlidir. AKD tutkallama uygulamalari kâgit uygulamalarinin teknolojik gelisimine paralel olarak giderek daha fazla onem kazanmaktadir. Basarili tutkallama icin kâgit sanayi ve geleneksel uygulamalarin mevcut durumunu incelemek gerekir. Kâgit hamuru ve kâgit endustrisi, AKD’nin hala en buyuk uygulayicisidir, AKD uretim ve uygulama hakkinda deneyime sahiptir. Bununla birlikte, AKD uygulamalarina muhendisligin cesitli alanlarinda artan ilgi vardir. Bu derleme arastirmacilarin AKD uygulama deneylerini gosteren kisa bir ozettir. Anahtar Kelimeler:  AKD, alkil keten dimer. Received (Gelis):  14.07.2016 -  Revised (Duzeltme):  06.10.2016 - Accepted (Kabul):  12.10.2016 Cite (Atif):  Bildik, A.E., 2017. A Perspective on various alkyl ketene dimer (AKD) application areas.  Journal of the Faculty of Forestry Istanbul University  67(1): 103-108. DOI: 10.17099/jffiu.74987","PeriodicalId":17682,"journal":{"name":"Journal of the Faculty of Forestry Istanbul University","volume":"102 1","pages":"103-108"},"PeriodicalIF":0.0,"publicationDate":"2016-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75892520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of desertification hazard in Abu Ghoveyr Plain, Dehloran, Ilam Province of Iran","authors":"Z. Heidarizadi, H. Karimi, S. A. Arami","doi":"10.17099/jffiu.35680","DOIUrl":"https://doi.org/10.17099/jffiu.35680","url":null,"abstract":"Assessment of desertification hazard in Abu-Ghoveyr Plain, Dehloran, Ilam Province of Iran Abstract:  The present study aims to evaluate the desertification hazard and determine the effective criteria affecting desertification in Abu-Ghoveyr Plain in Ilam Province, using the 9 criteria Iranian Model of Desertification Potential Assessment (IMDPA). To this end, first, work units maps (geomorphologic facies) were created using slope, geology, and land use maps. Using this method, work units were considered as the main unit of desertification and a map was generated for each index according to assigned weights, such that the qualitative map of the desired criteria were obtained using the geometric mean of indicators. Then, through integration and determining the geometric mean of layers obtained from criteria and finally classification of the obtained maps, map of the current status of desertification in the studied area was prepared. The obtained results indicated that 31.67% of the area was in the medium class of desertification (II) and 68.33% belonged to the intense class (III). Keywords:  Classification, Model, Criterion, Vegetation Cover, Work Units. Iran Ilam Eyaleti Dehluran Bolgesi Abu Ghoveyr Ovasi'nda Collesme Degerlendirilmesi Ozet:  Bu calismada 9 kriter iceren Iran Collesme Potansiyel Degerlendirme Modeli kullanilarak, Ilam Eyaleti Abu-Ghoveyr Ovasi'nda collesme zararinin degerlendirilmesi ve belirlenmesi amaclanmistir. Bu amacla, oncelikle egim, jeoloji ve arazi kullanim haritalarini iceren calisma birim haritalari olusturulmustur. Bu yontem kullanilarak, calisma birimleri collesme ana unite olarak kabul edildi ve entegrasyon ve geometrik kriterler ile elde edilen tabakalarin ortalamasi alinarak calisilan alandaki collesme mevcut durumunun haritasi hazirlanmistir. Elde edilen sonuclar, alanin %31.67 sinin collesme orta (II) sinifta ve % 68.33unun ise siddetli (III) sinifta oldugunu gostermistir. Anahtar Kelimeler:  Siniflandirma, Model, Olcut, Bitki Ortusu, Calisma Birimleri Received (Gelis):  15.04.2016 -  Revised (Duzeltme):  20.05.2016 - Accepted (Kabul):  13.06.2016 Cite (Atif):  Heidarizadi, Z., Karimi, H., Arami, S.A., 2017. Assessment of desertification hazard in Abu-Ghoveyr Plain, Dehloran, Ilam Province.  Journal of the Faculty of Forestry Istanbul University  67(1): 49-64. DOI: 10.17099/jffiu.35680","PeriodicalId":17682,"journal":{"name":"Journal of the Faculty of Forestry Istanbul University","volume":"456 1","pages":"49-64"},"PeriodicalIF":0.0,"publicationDate":"2016-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82959200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The assessment of management practices on rangelands exploitation using state and transition model in central arid regions of Iran","authors":"S. A. Arami, G. Heshmati","doi":"10.17099/JFFIU.37625","DOIUrl":"https://doi.org/10.17099/JFFIU.37625","url":null,"abstract":"The assessment of management practices on rangelands exploitation using state and transition model in central arid regions of Iran Abstract : Rangeland management in arid and semi-arid regions requires comprehensive attention to ecological processes and consider the interrelationship of those processes. Considering discard the theory of climax and rangeland succession model in recent years especially in arid regions and shrub lands, the new theory known as the state and transition model is taken into consideration by natural sciences and environmental specialistsb in the world. In present study, state and transition model and its application in rangeland management will be discussed and wil be peresented a case study of Iran for more description. As a case study, Nir rangelands of Yazd province will be introduced. In this rangeland, both status of enclose and grazing livestock evaluated and grazing livestock has been introduced as threshold of these two conditions. Rangelands of arid regions are biologically fragile and in the case of little degradation, a long time will be needed for compensation. The definition of different situations, thresholds, transitions and indicators will help managers to follow change trend among different plant communities and establish an ideal community. But due to very slow and very small changes in arid regions rangelands, use of models in these areas is not possible. Keywords:  Model, state and transition, Nir of Yazd, threshold, arid region. Iran'in orta kurak bolgelerinde eyalet ve gecis modelini kullanarak mera yonetim uygulamalarinin degerlendirilmesi Ozet:  Kurak ve yari kurak bolgelerde mera yonetimi ekolojik sureclere kapsamli bir dikkat ve bu sureclerin birbirleriyle olan iliskisini goz onunde tutmayi gerektirir. Ozellikle kurak bolgelerde, klimaks ve mera suksesyon modelinin terkedilmeye baslanmasi ile beraber, devlet ve gecis modeli olarak bilinen yeni bir teori son yillarda doga bilimleri ile ugrasan uzmanlar tarafindan uygulanmaya baslamistir. Bu calismada, devlet ve gecis modelini konu alan mera yonetimi uygulamasi ele alinacak ve daha fazla aciklama icin Iran'in Yazd eyaletinde bulunan Nir meralarinda yapilan bir ornek calisma sunulacaktir. Kurak bolgelerde yer alan meralar biyolojik olarak hassas ve kirilgandirlar, dolayisiyla bozulmalari durumunda, toparlanmalari icin uzun bir sure gerekli olacaktir. Meralarda olusacak gecisler ve degisimler yardimiyla yoneticiler farkli bitki topluluklari arasinda degisim trendini takip ederek ideal bir bitki toplumu kurabilmektedirler. Ancak kurak mintikalardaki degisimin yavasligi buralarda model kullanmayi oldukca sekteye ugratmaktadir. Anahtar Kelimeler:  Model, devlet ve gecis modeli, Yezd-Nir, esik, kurak bolge. Received (Gelis):  25.02.2016 -  Revised (Duzeltme):  08.04.2016 - Accepted (Kabul):  13.04.2016 Cite (Atif):  Arami, S.A., Heshmati, G., 2017. The assessment of management practices on rangelands exploitation using state and transition model in cent","PeriodicalId":17682,"journal":{"name":"Journal of the Faculty of Forestry Istanbul University","volume":"27 1","pages":"85-92"},"PeriodicalIF":0.0,"publicationDate":"2016-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84628689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Yoğunluk ile mekanik özellikler arasındaki ilişkiler","authors":"Yılmaz Bozkurt, Nurgün Erdin","doi":"10.17099/JFFIU.20856","DOIUrl":"https://doi.org/10.17099/JFFIU.20856","url":null,"abstract":"","PeriodicalId":17682,"journal":{"name":"Journal of the Faculty of Forestry Istanbul University","volume":"12 1","pages":"11-34"},"PeriodicalIF":0.0,"publicationDate":"2016-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74737553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Türkiye orman toprakları ve ekoloji sahalarındaki araştırmalara toplu bir bakış","authors":"A. Irmak","doi":"10.17099/JFFIU.29523","DOIUrl":"https://doi.org/10.17099/JFFIU.29523","url":null,"abstract":"","PeriodicalId":17682,"journal":{"name":"Journal of the Faculty of Forestry Istanbul University","volume":"25 1","pages":"22-29"},"PeriodicalIF":0.0,"publicationDate":"2016-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88067384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Türkiye'de özel sektör tarafından yapılan reçine üretimi ve sonuçları","authors":"Y. Göker","doi":"10.17099/JFFIU.77935","DOIUrl":"https://doi.org/10.17099/JFFIU.77935","url":null,"abstract":"","PeriodicalId":17682,"journal":{"name":"Journal of the Faculty of Forestry Istanbul University","volume":"74 1","pages":"116-129"},"PeriodicalIF":0.0,"publicationDate":"2016-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80721583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ekosistem kavramı ve ekosistem amenajmanı","authors":"N. Çepel","doi":"10.17099/JFFIU.09839","DOIUrl":"https://doi.org/10.17099/JFFIU.09839","url":null,"abstract":"","PeriodicalId":17682,"journal":{"name":"Journal of the Faculty of Forestry Istanbul University","volume":"155 1","pages":"21-30"},"PeriodicalIF":0.0,"publicationDate":"2016-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77616665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Orman yolları ve taşıtların hareketini etkileyen faktörler","authors":"Ö. Seçkin","doi":"10.17099/JFFIU.05485","DOIUrl":"https://doi.org/10.17099/JFFIU.05485","url":null,"abstract":"","PeriodicalId":17682,"journal":{"name":"Journal of the Faculty of Forestry Istanbul University","volume":"115 1","pages":"70-91"},"PeriodicalIF":0.0,"publicationDate":"2016-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90323696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Avrupa topluluğu ile gümrük birliği sürecinde Türkiye mobilya sanayii","authors":"A. Kurtoğlu, K. Koç","doi":"10.17099/JFFIU.45139","DOIUrl":"https://doi.org/10.17099/JFFIU.45139","url":null,"abstract":"","PeriodicalId":17682,"journal":{"name":"Journal of the Faculty of Forestry Istanbul University","volume":"3 1","pages":"51-62"},"PeriodicalIF":0.0,"publicationDate":"2016-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87824343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}