Journal of the Faculty of Forestry Istanbul University最新文献

{"title":"Duglas (Pseudotsuga menziesii (Mirb.) Franco) meşcerelerinin çap dağılımlarının modellenmesi","authors":"Gafura Aylak Özdemir","doi":"10.17099/JFFIU.69022","DOIUrl":"https://doi.org/10.17099/JFFIU.69022","url":null,"abstract":"Bu calismada Amance ve Vallombrosa orijinli duglas mescerelerinin degisik yas periyotlarindaki cap dagilimlarinin sekil ve olcek parametrelerine sahip iki parametreli Weibull olasilik yogunluk fonksiyonu ile modellenmesi amaclanmistir. Cap dagilimlarinin modellenmesinde I.U. Orman Fakultesi, Orman Hasilati ve Iktisadi kursusunce, duglas turunun Turkiye’de yetistirilmesi ve periyodik olcmelerle veriminin arastirilmasi amaciyla Belgrad ormani Topuzlu Bend bolgesinde dikim yoluyla olusturulan Amance ve Vallombrosa orijinli duglas mescerelerinden alinan devamli deneme alanlarinda degisik yas periyotlarinda gerceklestirilen periyodik gogus capi olcumleri esas alinmistir. Weibull olasilik yogunluk fonksiyonunun parametreleri maksimum olabilirlik yontemi ile tahmin edilerek, iki orijin icin her yas periyotundaki Weibull kuramsal cap dagilimlari elde edilmistir. Deneme alanlarinda gozlemlenen cap dagiliminin, Weibull kuramsal cap dagilimina uygunlugu Kolmogorov-Simirnov yontemi ile α=0.05 anlamlilik duzeyinde test edilmistir. Deneme alanlarindan elde edilen cap dagiliminin, kuramsal iki parametreli Weibull olasilik dagilimina uygun oldugu, diger bir ifadeyle tum yas periyotlari icin Amance ve Vallombrosa orijinli duglas mescerelerinin cap dagiliminin Weibull dagilimi ile temsil edilebilecegi sonucuna ulasilmistir.","PeriodicalId":17682,"journal":{"name":"Journal of the Faculty of Forestry Istanbul University","volume":"6 1","pages":"548-558"},"PeriodicalIF":0.0,"publicationDate":"2016-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81910955","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":"Political parties and forestry relations in Turkey’s general elections in 2015","authors":"E. Atmiş, H. B. Günşen","doi":"10.17099/jffiu.87085","DOIUrl":"https://doi.org/10.17099/jffiu.87085","url":null,"abstract":"Political parties and forestry relations in Turkey’s general elections in  2015 Abstract:  Political parties have important roles in the political decision making process on identifying the demand for public goods and services. In this context, political parties have significant impacts on identification and implementation of forestry policies. Their election manifestos/declarations have statements on forests and forestry, which are important sources of information for those parties' forestry policies. In this study, election manifestos of 11 parties that participated in the general elections that took place on June 7, 2015 and November 1, 2015 in Turkey were studied. Data were analysed with “Document Analyses” and “Content Analyses”, then evaluated under eight titles. As a result of these assessments, the conclusion was that; there are significant differences between the parties' approaches to forests: some of them consider the forest not as an entity but as a source of income, developing populist discourses that are sure to appeal to the general public, through ambitious or impossible promises. It can also be said that the political parties fail to base their views on forests on reliable data. Keywords:  Forest property, 2B, forest policy, forest-public relations, environment and forest Turkiye’de 2015 yili genel secimlerinde siyasal partiler ve ormancilik iliskileri Ozet:  Siyasal karar alma surecinde kamusal mal ve hizmetlere olan talebin belirlenmesinde siyasal partiler onemli gorevler ustlenmektedir. Bu kapsamda partilerin, ormancilik politikalarinin belirlenmesinde ve uygulanmasinda onemli etkileri vardir. Siyasi partilerin secim bildirgelerinde/beyannamelerinde yer verdikleri ormanlar ve ormancilikla ilgili beyanlar, o partilerin ormancilik politikalarini ogrenmek icin onemli bir kaynaktir. Bu calismada 7 Haziran 2015 ve 1 Kasim 2015 tarihlerinde yapilan genel secimlere katilan 11 partinin secim bildirgeleri incelenmistir. Bu incelemeler sonucunda toplanan veriler “Belgesel Tarama” ve “Icerik Analizi” yontemleriyle analiz edildikten sonra sekiz baslik altinda degerlendirilmistir. Degerlendirmeler sonucunda; siyasi partilerin ormanlara yaklasimlari konusunda onemli farkliliklar oldugu, kimisinin ormanlara bir varlik degil de gelir getirecek bir kaynak olarak yaklastigi, halkin hosuna gidecek populist soylemler gelistirdigi, abartili veya yerine getiremeyecegi vaatlerde bulundugu gibi tespitler yapilmistir. Ayrica partilerin ormanlar hakkindaki goruslerini saglikli bilgilere dayandiramadiklari da soylenebilir. Anahtar Kelimeler:  Orman mulkiyeti, 2B, ormancilik politikasi, orman-toplum iliskileri, cevre ve orman Received (Gelis):  24.11.2015 -  Revised (Duzeltme):  22.12.2015 - Accepted (Kabul):  16.01.2016 Cite (Atif):  Atmis, E., Gunsen, H.B., 2016. Political parties and forestry relations in Turkey’s general elections in 2015.  Journal of the Faculty of Forestry Istanbul University  66(2): xxx-xxx. DOI: 10.17099/jffiu.xxxxx","PeriodicalId":17682,"journal":{"name":"Journal of the Faculty of Forestry Istanbul University","volume":"44 1","pages":"587-599"},"PeriodicalIF":0.0,"publicationDate":"2016-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75592632","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":"Stem analysis program (GOAP) for evaluating of increment and growth data at individual tree","authors":"Gafura Aylak Özdemir, E. Özdemir","doi":"10.17099/JFFIU.61540","DOIUrl":"https://doi.org/10.17099/JFFIU.61540","url":null,"abstract":"Govde analizi, tek agacin gecmis donemlerdeki artim ve buyume verilerini ayrintili bir sekilde degerlendiren ve degisik ormancilik bilim dallarinda sikca kullanilan bir yontemdir. Govde analizinin ham verilerini, bolumleme yontemi ile tek agactan alinan kesitler uzerinde gerceklestirilen yillik halka sayim ve olcum islemleri olusturmaktadir. Elde edilen bu ham verilerin degerlendirilmesi oldukca zaman almaktadir. Bu nedenle govde analizinin kisa surede ve etkin bir sekilde yapilmasi icin bu calisma kapsaminda bir bilgisayar programi gelistirilmistir. Govde analizi ham verilerini sayisal ve grafik olarak degerlendirmek icin gelistirilen bu bilgisayar yazilimi, gunumuzde oldukca yaygin kullanilan MS Excel 2013 programinin Visual Basic For Application ozelliginden yararlanilarak makro olarak programlanmistir. Gelistirilen bu programda degisik yaslardaki (periyotlardaki) boy degerlerinin hesaplanmasi icin iki farkli yaklasimla boylanma modeli olusturulmakta, istenen donem (periyot) uzunluklarina gore, bolumleme yontemine gore tek agacin hacmi, kesit yuzeyleri, cap, boy ve hacim artimlari ile hacim artim yuzdeleri ve gogus boyu govde sekil katsayilari hesaplanmaktadir. Hesaplanan bu degerler tablo halinde verilmektedir. Cap boy, hacim ve bu degiskenlerin artimlari ile hacim artim yuzdesi ve gogus boyu govde sekil katsayisinin periyodik yaslara gore gelisimleri ise grafik olarak verilmektedir. Ayrica programdan, agacin gecmis donemlerdeki boy, cap ve sekil gelisimlerini gosteren govde modeli de grafik olarak alinabilmektedir.","PeriodicalId":17682,"journal":{"name":"Journal of the Faculty of Forestry Istanbul University","volume":"28 1","pages":"659-673"},"PeriodicalIF":0.0,"publicationDate":"2016-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89772635","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":"Fuzzy rule-based landslide susceptibility mapping in Yığılca Forest District (Northwest of Turkey)","authors":"A. Aydın, R. Eker","doi":"10.17099/JFFIU.48480","DOIUrl":"https://doi.org/10.17099/JFFIU.48480","url":null,"abstract":"Yigilca Orman Isletmesinin heyelan duyarlilik haritasi CBS-tabanli FuzzyCell yazilimi kullanilarak bulanik kural tabanli olarak olusturulmustur. 315 adet heyelan iceren envanter haritasi alanda daha once yazarlar tarafindan uretilen envanterin arazi calismalari ile guncellenmis seklidir. Alanda daha once yazarlar tarafindan uretilen heyelan duyarlilik haritasina bagli olarak karsilastirma yapabilmek amaciyla, yine 8 adet parametre harita secilmis ve daha sonra heyelan duyarlilik haritalama icin bulaniklastirilmistir: arazi kullanimi, litoloji, yukselti, egim, baki, yola uzaklik, dereye uzaklik ve plan egrisellik. Bulanik cikarim sistemi olarak Mamdani modeli secilmistir. Bulanik kurallarin tanimlanmasindan sonra modelin durulastirmasi icin Alan Merkezi metodu uygulanmistir. Daha sonra elde edilen bulanik duyarlilik haritasi 0-1 araliginda normallestirilmis ve cok dusuk, dusuk, orta, yuksek ve cok yuksek olmak uzere bes farkli duyarlilik sinifina ayrilmistir. Secilen 8 parametre haritasina bagli olarak gelistirilen modele gore, Yigilca Orman Isletmesinde heyelan duyarliligi 0.703 EAA (Egri Altindaki Alan) degeri ile 32 ila 67 (ki 1-100 araligindadir) duyarliliklari arasinda belirlenmistir. Siniflandirilan heyelan duyarlilik haritasina gore Yigilca Orman Isletmesinin %32.84’u yuksek ve cok yuksek duyarlilik siniflarinda iken, alanin %29.59’u dusuk ve cok dusuk duyarlilik siniflarinda, geriye kalan ise orta duyarlilik sinifinda yer almaktadir. Alanda daha once lojistik regresyon (LR) metodu ile uretilen heyelan duyarlilik haritasi ile karsilastirildiginda duyarlilik siniflarinin dagiliminda onemli farklilik gozlenmektedir. Bu bulanik kural tabanli modelin tamamiyla parametrelerin nasil siniflandirildigi ve bulaniklastirildiginin yani sira kural tabanin ne kadar dogru olusturulduguna baglidir. Ancak yine de bulanik kural tabani ile modelleme CBS entegre calismalarda oldukca esnek muhakeme imkani ve boylece belirlilik ve kesinlik olmamasi durumunun da dikkate alinmasina imkan saglamaktadir.","PeriodicalId":17682,"journal":{"name":"Journal of the Faculty of Forestry Istanbul University","volume":"1 1","pages":"559-571"},"PeriodicalIF":0.0,"publicationDate":"2016-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89311416","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":"Pollen morphology of Cornus mas L. and Cornus sanguinea L.","authors":"N. Kılıç, Gamze Tuttu","doi":"10.17099/JFFIU.75357","DOIUrl":"https://doi.org/10.17099/JFFIU.75357","url":null,"abstract":"Pollen morphology of Cornus mas L. and Cornus sanguinea L. Abstract: The pollen morphology of 2 species of the genus Cornus L. distributed in Turkey was studied with light and scanning electron microscope. The pollen of genus Cornus is 3-colporate. Pollen of the Cornus mas is spheroidal and Cornus sanguinea is subprolate. Size varies of Cornus mas pollen with the polar axis ranging from 21.54 to 27.36 μm and equatorial axis from 21.31 to 26.72 μm. Size varies of Cornus sanguinea pollen with polar axis ranging from 54.41 to 71.69 μm and equatorial axis from 46.03 to 63.42 μm. The equatorial outline of Cornus mas pollen is triangular and Cornus sanguinea pollen is circular. The results showed that pollen of these two species can easily be identified as species level. Keywords: pollen morphology, Cornus mas , Cornus sanguinea . Cornus mas L. ve Cornus sanguinea L. turlerinin polen morfolojisi Ozet: Turkiye’de yayilis gosteren Cornus L. cinsinin 2 turunun ( Cornus sanguinea L. ve Cornus mas L.) polen morfolojisi isik ve taramali elektron mikroskobuyla calisilmistir. Cornus cinsinin polenleri trikolporat aperture sahiptir. Cornus mas ’in polen sekli sferoid iken Cornus sanguinea ’nin ise subprolat’dir. Cornus mas polenlerinin polar eksen uzunlugu 21.54-27.36 μm ve ekvatoral eksen uzunlugu 21.31-26.72 μm arasinda degismektedir. Cornus sanguinea polenlerinde ise polar eksen uzunlugu 54.41-71.69 μm ve ekvatoral eksen uzunlugu 46.03-63.42 μm arasinda degismektedir. Cornus mas ’in ekvatoral dis gorunusu ucgenimsi iken Cornus sanguinea ’nin ise dairemsidir. Elde edilen sonuclar bu iki turun polenlerinin kolaylikla ayirt edilebilecegini gostermistir. Anahtar Kelimeler: Polen morfolojisi, Cornus mas, Cornus sanguinea Received (Gelis):  13.04.2016 -  Revised (Duzeltme):  03.08.2016 - Accepted (Kabul):  12.08.2016 Cite (Atif):  Karlioglu Kilic, N., Tuttu, G., 2017. Pollen morphology of Cornus mas L. and Cornus sanguinea L.  Journal of the Faculty of Forestry Istanbul University  67(1): 65-71. DOI: 10.17099/jffiu.75357","PeriodicalId":17682,"journal":{"name":"Journal of the Faculty of Forestry Istanbul University","volume":"126 1","pages":"65-71"},"PeriodicalIF":0.0,"publicationDate":"2016-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75286488","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":"Distribution and habitat preference of roe deer (Capreolus capreolus L.) in Düzce Province of Turkey","authors":"A. Keten","doi":"10.17099/JFFIU.89577","DOIUrl":"https://doi.org/10.17099/JFFIU.89577","url":null,"abstract":"Distribution and habitat preference of roe deer ( Capreolus capreolus  L.) in Duzce Province of Turkey Abstract:  The roe deer is an important game animal in Turkey. The aim of the current study was to determine the likely distribution area and habitat preferences of roe deer (Capreolus capreolus (L., 1758)) in Duzce Province. The species was observed by wildlife camera traps and direct or indirect observation methods in different habitats in a total of 75 sampling sites during the period between 2013 and 2015. Roe deer avoid human contact. The species are found mostly (79%) in fir and beech forests, preferably those with a closed canopy cover but without dense understory. The numbers of individual of male are higher than the female. They are most often (74%) observed during feeding, with activity peaking at dawn and dusk. The roe deer has a wide distribution range in Turkey and has great potential as a game animal. However, its prevalence is not sufficient in all regions. Keywords: Wildlife camera trap, stand, humans Karaca ( Capreolus capreolus L. )’nin Duzce’de yayilisi ve habitat tercihi Ozet: Karaca onemli av hayvanlarimizdan birisidir. Bu calisma ile Duzce ilinde Karaca (Capreolus capreolus L.)’nin muhtemel yayilis alanlarini ve habitat tercihlerini belirlenmesi amaclanmistir. Bunun icin tur 2013 ve 2015 yillarinda farkli habitatlarda fotokapan ve dogrudan ve dolayli gozlenmistir. Tur insan etkisinden mumkun oldugunca kacinmaktadir. Cogunlukla goknar ve kayin ormanlarini ve tercihen kapali alanlari kullanmaktadir. Ancak cok sik alt tabakayi tercih etmemektedir. Erkek birey disilere gore daha fazla tespit edilmistir. Alanda daha cok beslenme aktivitesi gosteren tur sabah ve aksam saatlerinde aktiftir. Ulkemiz av hayvanlari arasinda potansiyeli yuksek olan turun Duzce ilinde genis yayilisi bulunmakta ancak gorunme sikligi her alanda yeterli seviyede bulunmamaktadir. Anahtar kelimeler: Fotokapan, mescere, insan Received (Gelis):  02.03.2016 -  Revised (Duzeltme):  05.04.2016 - Accepted (Kabul):  18.04.2016 Cite (Atif):  Keten, A., 2017. Distribution and habitat preference of roe deer (Capreolus capreolus L.) in Duzce province of Turkey.  Journal of the Faculty of Forestry Istanbul University  67(1): 22-28. DOI: 10.17099/jffiu.89577","PeriodicalId":17682,"journal":{"name":"Journal of the Faculty of Forestry Istanbul University","volume":"24 1","pages":"22-28"},"PeriodicalIF":0.0,"publicationDate":"2016-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85087205","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":"Quantum analysis for biological communities using presence data","authors":"K. Özkan","doi":"10.17099/JFFIU.85122","DOIUrl":"https://doi.org/10.17099/JFFIU.85122","url":null,"abstract":"Quantum analysis for biological communities using presence data Abstract:  The concepts, quantities and the explanations, found in books dealing with quantum ecology (Orloci 2013-2015) have a profound potential to serve the assessments of biological community data from an ecological point of view. However, the data matrices subjected to quantum analysis are quantitative and vegetation related. Therefore, the answer to the following question has remained unresolved: Is it possible to calculate energy-based entropy nH, and the related H and instability %, based on presence data from biological communities at large? The present study was motivated to find a reasonable way for adaptation of presence community data to quantum analysis. For this, the T and n terms, by which nH is parameterized, are changed to Tt and n´t terms by making the Tt  values a function of taxonomic distance Tt and setting n´t equal to (n2 − n)/ 2. Reasonable results were obtained on both the stand (complex) and the metacommunity levels. Since the results are based on the transformations of artificial data, confirmation of the approach is required in further studies using both presence and quantitative data sets from real  communities.  Keywords:  Emergent effect, complex, resonator, energy units, ecosystems, living communities.  Sadece var verisi kullanilarak yasayan toplumlar icin kuantum analizi  Ozet:  Orloci’nin kuantum ekoloji ile ilgili yazdigi kitaplarda kuantum analizini uygulandigi tum vejetasyon veri matrisleri sayilabilen verilerden olustugundan, canli toplumlarin sadece var verilerinden nH, H ve esneklik % degerlerinin nasil elde edilecegi sorusu cevapsiz kalmaktadir. Bu calisma sadece var verilerinden olusan canli toplumlarina kuantum analizlerini uygulayabilecek mantiksal bir yol onererek cevapsiz kalan bu soruya cevap bulmak amaciyla gerceklestirilmistir. Calismada oncelikle enerjinin esnek tanimindan faydalanilarak kuantum analizinin ana girdileri olan T ve n, sirasiyla Tt and n´t terimlerine donusturulmustur. Bu baglamda Tt degerleri -uc kompleksten ve bir meta toplumdan olusan yapay veri setine- taksonomik mesafe formulunun (∆∗) ust bilesen esitliligi uygulanarak hesaplanmis, n´t degerleri ise (n2 − n)/2 formulu kullanilarak elde edilmistir. Elde edilen Tt ve n´t degerlerinden kompleks ve meta toplum seviyesinde uygulanan kuantum analizleri beklentiye uygun sonuclar vermistir. Bununla birlikte bu calisma ile ilk defa onerilen bu  yaklasimin gecerliligi onun kucuk veya buyuk olcekteki gercek canli toplum verilerine uygulanmasini gerektirmektedir.  Anahtar Kelimeler:  Beliren etki, kompleks, resonator, enerji uniteler, ekosistemler, canli toplumlar. Received (Gelis):  08.10.2015 -  Revised (Duzeltme):  29.01.2016 - Accepted (Kabul):  29.01.2016 Cite (Atif):  Ozkan, K., 2017. Quantum analysis for biological communities using presence data.  Journal of the Faculty of Forestry Istanbul University  67(1): 80-84. DOI: 10.17099/jffiu.85122","PeriodicalId":17682,"journal":{"name":"Journal of the Faculty of Forestry Istanbul University","volume":"16 1","pages":"80-84"},"PeriodicalIF":0.0,"publicationDate":"2016-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88496418","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":"Effect of rotational grazing on some soil properties in Düzce of Turkey","authors":"M. Özcan","doi":"10.17099/JFFIU.79331","DOIUrl":"https://doi.org/10.17099/JFFIU.79331","url":null,"abstract":"Effect of rotational grazing on some soil properties in Duzce of Turkey Abstract:  Pastures, one of the four important vegetation types in the world, have great potential not only in terms of forage production for animals, but also in terms of biological diversity. Yet, the pressure of continuous and overgrazing on pastures in Turkey affects both vegetation and soil negatively. Overgrazing leads to soil compaction, thus, soil permeability is influenced in a negative way. It is possible to remove these negative influences via amendment methods or reorganizing grazing. In this study, it was researched how short duration rotational grazing influenced some soil properties in a pasture where uncontrolled heavy grazing for many years in Duzce. As a result of the study, soil properties affected by rotational grazing at most were permeability and bulk density. While the value of bulk density increased from 1.19 gr cm-3 to 1.30 gr cm-3 in the continuous grazing pastures, it decreased from 1.38 gr cm-3 to 1.26 gr cm-3 in the rotational grazing pastures. It was demonstrated in the study that organizing grazing systems in the pastures can improve soil permeability and bulk density to a great extent. Keywords:  Rotational grazing, bulk density, permeability, pasture Duzce yoresinde munavebeli otlatmanin bazi toprak ozellikleri uzerine etkisi Ozet:  Dunyadaki dort onemli vejetasyon tipinden bir olan meralar hayvanlara kaba yem temin etmenin yani sira biyolojik cesitlilik acisinda da onemli bir potansiyele sahiptir. Ancak ulkemizde mera alanlari uzerindeki duzensiz ve asiri otlatma baskisi gerek bitki ortusu gerekse toprak uzerinde olumsuz etkiler olusturmaktadir. Asiri otlatmayla birlikte toprak sikismasi olmakta ve topraklarin su gecirme ozelligi olumsuz etkilenmektedir. Bu olumsuz etkiler mera alanlarinda uygulanacak islah yontemleri veya otlatmanin duzenlemesi ile duzeltilebilmektedir. Bu calismada da Duzce ilinde uzun yillar kontrolsuz bir sekilde agir otlatma yapilan bir mera alaninda kisa sureli munavebeli otlatmanin bazi toprak ozellikleri uzerine etkisi arastirilmistir. Arastirma sonucunda munavebeli otlatmadan en fazla ve hizli etkilenen toprak ozellikleri gecirgenlik ve hacim agirligi olmustur. Nitekim hacim agirligi degeri 3 yilin sonunda surekli otlatilan alanda 1,19 gr cm-3 den 1,30 gr cm-3 degerine cikarken; munavebeli otlatma yapilan alanlarda 1,38 gr cm-3 den 1,26 gr cm-3 duzeyine dusmustur. Arastirma mera alaninda otlatmanin duzenlenmesi ile topraklarin gecirgenlik ve hacim agirligi ozelliklerinde onemli iyilesmelerin olabilecegini ortaya koymustur. Anahtar Kelimeler:  Munavebeli otlatma, hacim agirligi, gecirgenlik, mera Received (Gelis):  01.03.2016 -  Revised (Duzeltme):  01.04.2016 - Accepted (Kabul):  18.04.2016 Cite (Atif):  Ozcan, M., 2017. Effect of rotational grazing on some soil properties in Duzce of Turkey.  Journal of the Faculty of Forestry Istanbul University  67(1): 29-36. DOI: 10.17099/jffiu.79331","PeriodicalId":17682,"journal":{"name":"Journal of the Faculty of Forestry Istanbul University","volume":"92 1","pages":"29-36"},"PeriodicalIF":0.0,"publicationDate":"2016-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90507072","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":"Changes and trends of seasonal total rainfall in the province of Istanbul, Turkey","authors":"I. Yurtseven, Y. Serengil","doi":"10.17099/JFFIU.30673","DOIUrl":"https://doi.org/10.17099/JFFIU.30673","url":null,"abstract":"Changes and trends of seasonal total rainfall in the province of Istanbul, Turkey Abstract: Several studies revealed that climate change can affect local and regional precipitation patterns. Long term trends and cycles in precipitation is important for the health of ecosystems in the region. The possible impacts in near future can affect the forest and water resources of Istanbul.  In this study, daily, monthly, seasonal and annual precipitation analyses for the different meteorology stations were examined for the Istanbul province. Northern and southern different climatic conditions of Istanbul have been effective selection of the station. The Mann-Kendall test results showed that there is positive statistically significant trend in some meteorology stations. According to Mann-Kendall results the increased fall precipitation trend were found in Florya, Kirecburnu ve Kumkoy meteorology stations and decreased summer precipitation trend were found in Goztepe meteorology stations Keywords: Mann-Kendall trend analysis, precipitation time series, the regional precipitation reactions analysis, climate change Istanbul ilinde mevsimsel toplam yagislarin degisimleri ve egilimleri Ozet : Iklim degisikliginin bolgesel ve yoresel olcekte yagis rejimi uzerinde etkileri olabilecegi bircok arastirma ile ortaya konulmustur. Yagis serilerindeki uzun donemli yonelimler ve donguler yoredeki ekosistemlerin sagligi ve gelecegi acisindan buyuk onem arzetmektedir. Istanbul ilinde onumuzdeki donemde gerceklesebilecek etkiler ise hem su kaynaklari hem de ormanlar uzerinde onemli sonuclar ortaya cikarabilir. Bu calismada Istanbul iline ait farkli meteoroloji istasyonlarinin uzun donemli mevsimlik verileri arastirilmistir. Calismadaki amacimiz ileriye donuk tahminlerdeki belirsizlikleri belli oranda ortadan kaldirabilecek gecmise donuk veriler yardimiyla istatistiksel analizleri gerceklestirmektir. Istasyon seciminde Istanbul’un kirsal ve kentsel bolgelerindeki farkli iklim kosullari etkili olmustur.  Mann-Kendall testi sonuclarina gore Florya, Kirecburnu ve Kumkoy Meteoroloji Istasyonlari’nda secilen sonbahar mevsimi yagislarinda, Goztepe Meteoroloji Istasyonu’nda ise yaz mevsimi yagislarinda istatistiksel anlamda artan bir trend bulunmustur. Anahtar kelimeler: Mann-Kendall trend analizi, yagis zaman serileri, iklim degisikligi Received (Gelis):  10.02.2016 -  Revised (Duzeltme):  05.05.2016 - Accepted (Kabul):  24.05.2016 Cite (Atif):  Yurtseven, I., Serengil, Y., 2017. Changes and trends of seasonal total rainfall in the province of Istanbul, Turkey.  Journal of the Faculty of Forestry Istanbul University  67(1): 1-12. DOI: 10.17099/jffiu.30673","PeriodicalId":17682,"journal":{"name":"Journal of the Faculty of Forestry Istanbul University","volume":"26 1","pages":"1-12"},"PeriodicalIF":0.0,"publicationDate":"2016-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89126057","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":"Evaluation of satisfaction levels from workwears of forest fire workers","authors":"S. Okan, H. Acar","doi":"10.17099/JFFIU.73661","DOIUrl":"https://doi.org/10.17099/JFFIU.73661","url":null,"abstract":"Evaluation of satisfaction levels from workwears of forest fire workers Abstract: Nowadays, the use of appropriate work clothes in each work lines is mandatory with 4857 labor law. Forestry activities are performed in the open air, difficult working conditions and under the influence of various risk factors. Forest fire workers who work in the forest fire extinguishing and cooling have worked at the greatest risk operations. The majority of these workers work in the status of seasonal workers. In fire season, the fire workers usually wear work clothes for the day and stay in barracks in the forest. Work clothes of fire workers are brightly colored to be visible in the forest, fire-resistant and suitable forest conditions. It is important that to provide easy movement, to be effective against air conditions and to conform to the body features of workers of forest fire clothing in terms of health and safety. In this study, it has been assessed that satisfaction levels of forest fires worker from work clothes. It was applied a questionnaire to 44 forest fire workers. Data were analyzed statistically and solutions were developed. Keywords: Forest fire workers, workwear, work satisfaction level, occupational health and safety, ergonomic Orman yangin iscilerinin is kiyafetlerinden memnuniyet duzeylerinin degerlendirilmesi Ozet: Gunumuzde toplumun is sagligi ve guvenligine verdigi onemin artmasi ve 4857 sayili is kanunu geregince is yerlerinde is kiyafetlerinin kullanimi on plana cikarmistir. Ormancilik faaliyetleri; acik havada, zor calisma kosullarinda ve cok degisik risk faktorlerinin etkisi altinda gerceklestirilmektedir. Orman iscilerinden en fazla risk altinda olanlar, orman yanginlarinin sondurulmesi ve sogutulmasi faaliyetlerinde calisan yangin iscileridir. Bu iscilerin buyuk bolumu sozlesmeli isci statusundeki kisilerdir. Isciler yangin sezonunda her an yangina acil mudahaleye gitmek durumunda kalmalari nedeniyle genellikle orman icerisindeki barakalarda konaklarlar ve gun boyu is kiyafetlerini giyerler. Iscilerin kiyafetleri parlak renkte ve atese karsi dayanikli malzemeden yapilirlar. Bu kiyafetlerin orman icerisinde rahat hareket etmeyi saglamasi, hava hallerine karsi etkinligi ve iscilerin vucut yapilarina uygunlugu is guvenligi acisindan cok onemlidir. Bu calismada, orman yangin iscilerinin is kiyafetlerinden memnuniyet durumlari degerlendirilmistir. Bu amacla hepsi erkek olan 44 orman yangin iscisine memnuniyet duzeyi belirleme anketleri uygulanmistir. Elde edilen veriler degerlendirilerek iscilerin memnuniyetsizlik duyduklari durumlar ortaya konulmus ve cozum onerileri gelistirilmistir. Anahtar Kelimeler: Orman yangin iscileri, is kiyafeti, memnuniyet duzeyi, is sagligi ve guvenligi, ergonomi Received (Gelis):  13.04.2016 -  Revised (Duzeltme):  02.05.2016 - Accepted (Kabul):  20.05.2016 Cite (Atif):  Okan Unver, S., Acar, H.H., 2017. Evaluation of satisfaction levels from workwears of forest fire workers.  Journal of the Faculty of Fore","PeriodicalId":17682,"journal":{"name":"Journal of the Faculty of Forestry Istanbul University","volume":"32 1","pages":"93-102"},"PeriodicalIF":0.0,"publicationDate":"2016-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89251473","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}