Journal of forest science最新文献

Understanding the role of ecotypic factors in the early growth of Pinus sylvestris L. 了解生态型因素在欧洲赤松早期生长中的作用

IF 1.1

Journal of forest science Pub Date : 2023-12-21 DOI: 10.17221/102/2023-jfs

Jakub Hejtmánek, Jan Stejskal, Daniel Provazník, Jaroslav Čepl

引用次数: 0

Thinning effects on growth and occurrence of rotting in aspen stands 疏伐对杨树林生长和腐烂发生的影响

IF 1.1

Journal of forest science Pub Date : 2023-12-21 DOI: 10.17221/103/2023-jfs

Alina Nasibullina, Marieke van der Maaten-Theunissen, E. van der Maaten, Holger Fischer, Sven Wagner

引用次数: 0

Development of Douglas fir merchantable stem volume model in the conditions of the Czech Republic 在捷克共和国的条件下开发花旗松可销售茎量模型

IF 1.1

Journal of forest science Pub Date : 2023-12-13 DOI: 10.17221/92/2023-jfs

Radoslav Hlavica, Zdeněk Adamec

引用次数: 0

Stand structure of a juvenile Paulownia Shan Tong plantation grown in the temperate dry climate zone in Hungary - A case study 匈牙利温带干旱气候区幼年泡桐山桐子种植园的林分结构 - 案例研究

IF 1.1

Journal of forest science Pub Date : 2023-12-07 DOI: 10.17221/90/2023-jfs

F. Szabó, K. Rédei, T. Ábri, E. Kovács, Lajos Juhász

引用次数: 0

Modelling the tree height-diameter relationship of Macedonian pine (Pinus peuce Gris.) forests in North Macedonia 北马其顿马其顿松（Pinus peuce Gris.）林树高-直径关系建模

IF 1.1

Journal of forest science Pub Date : 2023-11-27 DOI: 10.17221/68/2023-jfs

Vladimir Tanovski, B. Matović, Mihajlo Risteski, Pande Trajkov

引用次数: 0

Potential of Morus nigra in Central Europe focused on micropropagation: A short review 黑桑树在中欧的微繁殖潜力：简评

IF 1.1

Journal of forest science Pub Date : 2023-11-21 DOI: 10.17221/73/2023-jfs

Pavel Švagr, Josef Gallo, J. Vítámvás, V. Podrázský, M. Balas

引用次数: 0

Simulating differences between forwarding short and normal-length timber 模拟转发短木料和正常长度木料之间的差异

IF 1.1

Journal of forest science Pub Date : 2023-11-21 DOI: 10.17221/41/2023-jfs

Simon Berg

引用次数: 0

Potential of mixed Picea abies (L.) Karst. and Pinus sylvestris L. forests in lowland areas of Central Bohemia 混合云杉的潜力(L.)岩溶。中部波西米亚低地地区的西尔维斯特松森林

Journal of forest science Pub Date : 2023-11-13 DOI: 10.17221/76/2023-jfs

Pavel Brabec, Jakub Brichta, Zdeněk Vacek, Stanislav Vacek, Václav Šimůnek, Vojtěch Hájek

{"title":"Potential of mixed Picea abies (L.) Karst. and Pinus sylvestris L. forests in lowland areas of Central Bohemia","authors":"Pavel Brabec, Jakub Brichta, Zdeněk Vacek, Stanislav Vacek, Václav Šimůnek, Vojtěch Hájek","doi":"10.17221/76/2023-jfs","DOIUrl":"https://doi.org/10.17221/76/2023-jfs","url":null,"abstract":"Mixed forests play aÂ key role inÂ terms ofÂ stability, production potential, and adaptation toÂ climate change. InÂ addition, the studied Norway spruce [Picea abies (L.) Karst.] and Scots pine (Pinus sylvestrisÂ L.) belong toÂ the most economically important tree species inÂ Europe. The objectives were toÂ determine the effect ofÂ the species composition ofÂ these two tree genera onÂ the production, structure, diversity, and growth ofÂ mixed stands atÂ lower elevations inÂ the Czech Republic. Based onÂ dendroecological samples, research was also carried out onÂ the influence ofÂ climatic factors and climate change onÂ the radial growth ofÂ these trees ofÂ interest. Mixed forests showed higher timber production byÂ 29.8% compared toÂ spruce and pine monocultures. The production ofÂ mature stands ranged from 328 toÂ 479 m3·ha–1. Spruce achieved higher radial growth, but its growth variability was higher than that ofÂ pine. Compared toÂ precipitation, temperatures had aÂ greater influence onÂ the radial growth ofÂ both tree species, especially inÂ the growing season. InÂ terms ofÂ diversity, mixed stands achieved significantly higher structural differentiation and overall diversity compared toÂ monospecific variants. Mixed stands can achieve higher production potential, diversity, and especially resistance toÂ climatic extremes inÂ the lowland regions ofÂ the Czech Republic. The differences between mixed stands and monocultures, i.e.Â the effect ofÂ tree species mixing, depend onÂ the appropriate proportions ofÂ tree species and their spatial pattern.","PeriodicalId":16011,"journal":{"name":"Journal of forest science","volume":"4 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136348010","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: 0

Estimation of Fagus orientalis Lipsky height using nonlinear models in Hyrcanian forests, Iran 利用非线性模型估算伊朗海卡尼亚森林中毛茛的高度

Journal of forest science Pub Date : 2023-10-30 DOI: 10.17221/93/2022-jfs

Mohammad Rasoul Nazari Sendi, Iraj Hassanzad Navroodi, Aman Mohammad Kalteh

{"title":"Estimation of Fagus orientalis Lipsky height using nonlinear models in Hyrcanian forests, Iran","authors":"Mohammad Rasoul Nazari Sendi, Iraj Hassanzad Navroodi, Aman Mohammad Kalteh","doi":"10.17221/93/2022-jfs","DOIUrl":"https://doi.org/10.17221/93/2022-jfs","url":null,"abstract":"Tree height isÂ one ofÂ the most important variables inÂ describing forest stand structure. However, due toÂ difficulty inÂ height measurement, especially inÂ dense and mountainous forests, the common approach isÂ toÂ invoke the height-diameter (H-D) models. The oriental beech (Fagus orientalis Lipsky) isÂ one ofÂ the most important species ofÂ Hyrcanian forests, over the mid toÂ high-altitudes (400–1 800 mÂ a.s.l.), inÂ northern Iran. InÂ this study, the H-DÂ relationship ofÂ beech trees was investigated separately for mid-altitude and high-altitude inÂ Shafaroud forests ofÂ Guilan using 14Â nonlinear H-DÂ models and anÂ artificial neural network model (ANN). ToÂ collect data, aÂ systematic random sampling method within aÂ 100 Ă 100 m regular randomized grid was applied. InÂ total, 3 243 individual trees inÂ 255 circular plots with 0.1 ha were measured. For comparing the results, performance criteria including root mean square error (RMSE), R2adj, Akaike's information criterion (AIC), and mean absolute error (MAE) were used. InÂ high and mid altitudes, Meyer (1940) and Bates and Watts (1980) models had the best performance, while Watts (1983) model and Burkhart-Strub (1974) model had the worst performance inÂ high-altitude and inÂ mid-altitude, respectively. OnÂ the other hand, the ANN model had the best accuracy and performance inÂ both sites. Since the performance ofÂ the ANN model isÂ superior and consistent compared toÂ the common nonlinear models, here itÂ isÂ preferred for both regions.","PeriodicalId":16011,"journal":{"name":"Journal of forest science","volume":"144 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136018143","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: 0

Three scenarios for tree species composition and stand age in new and permanent forest areas: A case study of Latvia 新森林和永久森林地区树种组成和林龄的三种情景:拉脱维亚的案例研究

Journal of forest science Pub Date : 2023-10-30 DOI: 10.17221/25/2023-jfs

Zigmārs Rendenieks, Līga Liepa

{"title":"Three scenarios for tree species composition and stand age in new and permanent forest areas: A case study of Latvia","authors":"Zigmārs Rendenieks, Līga Liepa","doi":"10.17221/25/2023-jfs","DOIUrl":"https://doi.org/10.17221/25/2023-jfs","url":null,"abstract":"Land abandonment and the emergence ofÂ new forest areas create novel dynamics for forest ecosystems and landscapes. Modelling isÂ often used toÂ forecast tree species composition, age group distribution and spatial patterns inÂ the future. The aim ofÂ this study was toÂ develop three scenarios for changes inÂ tree species composition, stand age distribution and spatial patterns ofÂ new forest areas and permanent forests using Latvia asÂ aÂ case study. WeÂ selected 19Â study areas ofÂ the size 10 kmÂ ĂÂ 10 km toÂ sample the variety ofÂ forest cover patterns, tree species, and stand age. Using GIS tools, weÂ developed three scenarios: baseline, commercial and conservation. Results showed that the conservation scenario resulted inÂ the most even-aged group distribution. Scenarios predicted the increase ofÂ Picea abies area (reaching 29.3% inÂ permanent forests and even 45.7% inÂ new forests) and the reduction ofÂ Pinus sylvestris inÂ most cases. Changes inÂ the median patch area were the best indicator for evaluation ofÂ different scenarios with the largest patches ofÂ new forest areas for the conservation scenario (1.92Â ±Â 1.23 ha). The existing structural and compositional integrityÂ ofÂ sampled forest landscapes was best retained under the baseline and conservation scenarios, while the commercial scenario indicated more fragmented forest landscapes inÂ the future.","PeriodicalId":16011,"journal":{"name":"Journal of forest science","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136018691","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: 0