Eurasian Journal of Forest Science最新文献_第8页

Growth and yield models for uneven-aged forest stands managed under a selection system in northern Iran 在伊朗北部的一个选择系统下管理的不均匀年龄林分的生长和产量模型

Eurasian Journal of Forest Science Pub Date : 2019-10-29 DOI: 10.31195/ejejfs.569197

S. Kalbi, A. Fallah, S. Shataee, P. Bettinger, R. Yousefpour

{"title":"Growth and yield models for uneven-aged forest stands managed under a selection system in northern Iran","authors":"S. Kalbi, A. Fallah, S. Shataee, P. Bettinger, R. Yousefpour","doi":"10.31195/ejejfs.569197","DOIUrl":"https://doi.org/10.31195/ejejfs.569197","url":null,"abstract":"Predicting future forest growth and yield is a key element of sustainable forest management. Hyrcanian forests are the most valuable forests in the north of Iran, and industrial harvesting occurs only in this area of the country. W hile uneven-aged Hyrcanian forests are one of the most important vegetated areas, and the only commercial forests in Iran, there is a lack of growth and yield models for management and planning purposes. The aim of this study is to develop distance-independent individual tree growth and yield models for uneven-aged forests in northern Iran managed under selection systems.A distance-independent diameter growth model, a static height model, an ingrowth model, and a survival model for uneven-aged stands of Fagus orientalis Lipsky were developed using measurements from Sangdeh, within the Mazandaran providence in Iran. The models are based on 130 permanent sample plots established in 2009 and remeasured in 2014. For modeling diameter and height growth, we employed mixed effect regression. For modeling survival, we used binary logistic regression analysis. Ingrowth was modeled using multilinear regression. Results showed the best growth and yield model had relative RMSE and bias values, respectively, that were 31.9% and 6.3% for the diameter growth model, 11.3% and 0.17% for the height model, and 22% and 0.14% for the ingrowth model. Wald tests and other model evolution parameters showed that the parameter estimates for tree mortality were statistically significant. Overall results indicated that growth and yield model performance was consistent with expectations, and that the general fit to the validation data was acceptable","PeriodicalId":197799,"journal":{"name":"Eurasian Journal of Forest Science","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125135543","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}

引用次数: 3

A Faunistic Study on the Geometrid Moths (Lepidoptera) of Maden (Elazığ) District 马登(Elazığ)地区尺蛾(鳞翅目)区系研究

Eurasian Journal of Forest Science Pub Date : 2019-10-29 DOI: 10.31195/ejejfs.568822

E. Seven, A. Cakir

引用次数: 1

Epiphytic bryophyte vegetation of Beldibi and Babadağ forests (Zonguldak, Turkey) Beldibi和babadaku森林的附生苔藓植被(土耳其宗古尔达克)

Eurasian Journal of Forest Science Pub Date : 2019-10-29 DOI: 10.31195/ejejfs.528448

M. Alataş, T. Ezer, N. Batan

引用次数: 1

Changes in physical and hydraulic properties of a clay soil due to the irrigation of tomatoes with recycled wastewater 用再生废水灌溉番茄对粘土的物理和水力特性的影响

Eurasian Journal of Forest Science Pub Date : 2019-10-29 DOI: 10.31195/ejejfs.585595

A. Demir, Üstün Şahin

引用次数: 2

A new locality record of a rare fungus Cercopemyces rickenii (Agaricales: Tricholomataceae) in Ukraine 乌克兰一种罕见真菌黎氏菌的新记录(真菌门:口蘑科)

Eurasian Journal of Forest Science Pub Date : 2019-10-29 DOI: 10.31195/ejejfs.577929

М. Sukhomlyn, V. Heluta, Yulia Kulsha, Ilgaz Akata, V. Sapsay

引用次数: 0

Seven years of arboreal pollen monitoring in the İğneada waterlogged forests (NW Turkey) 土耳其西北部İğneada涝渍森林7年树花粉监测

Eurasian Journal of Forest Science Pub Date : 2019-10-29 DOI: 10.31195/ejejfs.635736

N. Kılıç

{"title":"Seven years of arboreal pollen monitoring in the İğneada waterlogged forests (NW Turkey)","authors":"N. Kılıç","doi":"10.31195/ejejfs.635736","DOIUrl":"https://doi.org/10.31195/ejejfs.635736","url":null,"abstract":"This study was carried out in the Igneada Waterlogged Forests (Kirklareli) located downhill of Istranca mountains at 20 km distance to Bulgaria border line and had a shore to Black Sea. These forests have different vegetation types such as waterlogged forest, peat, bog and sand dunes plant communities, sand zone and wetlands. The main arboreal species of these forests are Acer campestre, Acer trautvetteri, Alnus glutinosa, Carpinus betulus, Carpinus orientalis, Fraxinus angustifolia, Fraxinus ornus, Juglans regia, Quercus cerris, Quercus frainetto, Quercus petraea, Quercus robur, Ulmus leavis and Ulmus minor . Pollen monitoring results were obtained from six different sampling sites in the waterlogged forests around Mert and Saka Lake. The purpose of this study is to determine the modern pollen distribution of these forests and to create a basic calibration scheme for the fossil pollen studies. For this purpose, seven years of modern pollen distribution was monitored between September 2009 and 2016 using Tauber pollen traps which were placed at 6 different points in this study area. These traps were changed once a year in the field and transferred to the Palynology Laboratory of Istanbul University-Cerrahpasa. The protocol of European Pollen Monitoring Programme (EPMP) was followed in the laboratory methodology. The majority of the pollen influx obtained from the Tauber pollen traps in the Igneada Waterlogged forests belongs to Fraxinus and Carpinus from 2009 to 2016. As a result of this study, the annual arboreal pollen influxes of Fraxinus, Carpinus, Quercus, Acer, Corylus, Ulmus, Hedera helix and Alnus was higher respectively in the years of 2009-2016. Seven-year pollen influx data of these pollen traps reflects the current vegetation.","PeriodicalId":197799,"journal":{"name":"Eurasian Journal of Forest Science","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128358826","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}

引用次数: 1

A Critical Approach to Landscape Planning and Design Criteria for Urban Cemeteries: The Çanakkale Example 城市墓地景观规划和设计标准的关键方法:Çanakkale例子

Eurasian Journal of Forest Science Pub Date : 2019-10-29 DOI: 10.31195/ejejfs.605239

Y. Alkan

引用次数: 1

Morphological Characteristics of Some Salvia L. Taxa in Sakarya Province ( Turkey) 土耳其萨卡里亚省部分鼠尾草分类群的形态特征

Eurasian Journal of Forest Science Pub Date : 2019-08-20 DOI: 10.31195/EJEJFS.559428

F. Kaplan, Ernaz Altundağ Çakır

引用次数: 1

Using of high-resolution satellite images in object-based image analysis 高分辨率卫星图像在目标图像分析中的应用

Eurasian Journal of Forest Science Pub Date : 2019-08-20 DOI: 10.31195/EJEJFS.603510

H. Yurtseven, H. Yener

引用次数: 6

Comparison of ASTER, Contour Lines and LiDAR Based DEMs in Terms of Topographic Differences in Forested Area 基于ASTER、等高线和LiDAR的dem在林区地形差异方面的比较

Eurasian Journal of Forest Science Pub Date : 2019-08-20 DOI: 10.31195/EJEJFS.597460

H. Yurtseven

{"title":"Comparison of ASTER, Contour Lines and LiDAR Based DEMs in Terms of Topographic Differences in Forested Area","authors":"H. Yurtseven","doi":"10.31195/EJEJFS.597460","DOIUrl":"https://doi.org/10.31195/EJEJFS.597460","url":null,"abstract":"DEMs (Digital Elevation Model) generated with different remote sensing techniques and technologies are used to determine the changes of vegetation in forests depending on topographical factors. The accuracy of DEMs has a major impact on the planning and management of forests. In this study, the accuracy of two different DEM data sources, which are frequently used in the modeling of topographic changes in large field studies in forestry, was compared with the LiDAR-based DEM dataset on a forest site. In this context, three different DEM source were used. One of them was the 10 m interval contour lines of 1:25,000 scale aerial photogrammetry based standard topographical maps which are produced by National General Directorate of Mapping. Topomap contour lines are transformed to grid based DEMs by using TIN and ANUDEM based approaches at 2.5, 5, 10 and 30 m resolutions. The other data was ASTER GDEM (1 arc-second ASTER GDEM Version 2, approximately 30 m resolution). The final and reference data is the LiDAR based, 0.25 m resolution DEM. In total, 33 DEM datasets are compared with the LiDAR-based DEM dataset. For these data sets, five difference metrics were calculated: pixel based difference models, the areal and volumetric difference of surface models, the areal difference of slope classes and the areal difference of aspect classes. According to the results of the analysis, the resolution, according to the topographic characteristics of the area and selected interpolation approaches has an effect on DEM modeling and DEM –derived metrics. In addition, the forest structure has a major impact on the accuracy of ASTER GDEM data.","PeriodicalId":197799,"journal":{"name":"Eurasian Journal of Forest Science","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124098718","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}

引用次数: 2