Scandinavian Journal of Forest Research最新文献_第9页

The utility of forest attribute maps for automated Avalanche Terrain Exposure Scale (ATES) modelling 森林属性图在自动雪崩地形暴露比例尺(ATES)建模中的应用

IF 1.8 3区农林科学

Scandinavian Journal of Forest Research Pub Date : 2022-05-19 DOI: 10.1080/02827581.2022.2096921

J. Schumacher, Håvard Toft, J. Mclean, M. Hauglin, R. Astrup, J. Breidenbach

{"title":"The utility of forest attribute maps for automated Avalanche Terrain Exposure Scale (ATES) modelling","authors":"J. Schumacher, Håvard Toft, J. Mclean, M. Hauglin, R. Astrup, J. Breidenbach","doi":"10.1080/02827581.2022.2096921","DOIUrl":"https://doi.org/10.1080/02827581.2022.2096921","url":null,"abstract":"ABSTRACT The number of people affected by snow avalanches during recreational activities has increased over the recent years. An instrument to reduce these numbers are improved terrain classification systems. One such system is the Avalanche Terrain Exposure Scale (ATES). Forests can provide some protection from avalanches, and information on forest attributes can be incorporated into avalanche hazard models such as the automated ATES model (AutoATES). The objectives of this study were to (i) map forest stem density and canopy-cover based on National Forest Inventory and remote sensing data and, (ii) use these forest attributes as input to the AutoATES model. We predicted stem density and directly calculated canopy-cover in a 20 Mha study area in Norway. The forest attributes were mapped for 16 m × 16 m pixels, which were used as input for the AutoATES model. The uncertainties of the stem number and canopy-cover maps were 30% and 31%, respectively. The overall classification accuracy of 52 ski-touring routes in Western Norway with a total length of 282 km increased from 55% in the model without forest information to 67% when utilizing canopy cover. The F1 score for the three predicted ATES classes improved by 31%, 9%, and 6%.","PeriodicalId":21352,"journal":{"name":"Scandinavian Journal of Forest Research","volume":"37 1","pages":"264 - 275"},"PeriodicalIF":1.8,"publicationDate":"2022-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41699855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Forest owners’ perspectives on forest protection in Norway 挪威森林所有者对森林保护的看法

IF 1.8 3区农林科学

Scandinavian Journal of Forest Research Pub Date : 2022-05-18 DOI: 10.1080/02827581.2022.2075448

V. gundersen, O. Vistad, Terje Skjeggedal

{"title":"Forest owners’ perspectives on forest protection in Norway","authors":"V. gundersen, O. Vistad, Terje Skjeggedal","doi":"10.1080/02827581.2022.2075448","DOIUrl":"https://doi.org/10.1080/02827581.2022.2075448","url":null,"abstract":"ABSTRACT Forest protection in nature reserves in Norway relies on the voluntary participation of forest owners. While the national forest protection program has been a success since its start in early 1990s, by 2020 the national forest protection authorities were only halfway to reaching their goal of protecting 10% all forest area. We examined attitudes towards forest protection in general and towards different protection modes using surveys of forest owners between 2003 and 2010. Our analysis is based on a comprehensive comparison between a random sample of forest owners (n = 647), forest owners who participated in voluntary conservation (n = 126) and forest owners involved in the government-led coniferous forest protection program (n = 142). Only about 10% of forest owners involved in voluntary protection processes are either quite or very unhappy with the process, while 75% of forest owners involved in government-led protection were either quite or very unhappy with the process. Moreover, forest owners who had experience with the voluntary protection program were largely satisfied with the results. We discuss forest owners’ attitudes to forest protection in general, and possible reasons for the differences in attitudes between compulsory protection and voluntary protection. We conclude that voluntary protection has great potential to fulfill the last 5% area goal for forest protection in Norway, with some improvements in the process.","PeriodicalId":21352,"journal":{"name":"Scandinavian Journal of Forest Research","volume":"37 1","pages":"276 - 286"},"PeriodicalIF":1.8,"publicationDate":"2022-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42848793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Regulating the Safety of Health-Related Artificial Intelligence. 监管与健康相关的人工智能的安全性。

3区农林科学

Scandinavian Journal of Forest Research Pub Date : 2022-05-01 DOI: 10.12927/hcpol.2022.26824

Michael Da Silva, Colleen M Flood, Anna Goldenberg, Devin Singh

引用次数: 0

Will intensity of forest regeneration measures improve volume production and economy? 森林更新措施的强度是否会提高产量和经济效益?

IF 1.8 3区农林科学

Scandinavian Journal of Forest Research Pub Date : 2022-04-03 DOI: 10.1080/02827581.2022.2085784

A. Jonsson, B. Elfving, K. Hjelm, T. Lämås, U. Nilsson

{"title":"Will intensity of forest regeneration measures improve volume production and economy?","authors":"A. Jonsson, B. Elfving, K. Hjelm, T. Lämås, U. Nilsson","doi":"10.1080/02827581.2022.2085784","DOIUrl":"https://doi.org/10.1080/02827581.2022.2085784","url":null,"abstract":"ABSTRACT The prevailing regeneration methods in Scandinavian countries are artificial regeneration methods including measures such as site preparation and planting. These measures are considered to be a part of a more intensive forest management and require an initial investment. The use of artificial regeneration measures can, however, increase the growth of a forest stand. In this study, the purpose was to investigate if such an investment is profitable by comparing three different intensity levels (low, medium and high) applied during the regeneration phase, with aspect on both economics (LEV, land expectation value) and growth (MAI, mean annual increment) after a full rotation. The forest stands used in this study were regenerated between 1984 and 1988 and the future growth of the stands was simulated using Heureka StandWise. It was clear that naturally regenerated (low intensity) stands resulted in better economics than stands actively regenerated (medium and high intensity). However, actively regenerated stands resulted in both higher volume production and growth, and the uncertainty of regeneration success was reduced using artificial regeneration measures. These factors are important when considering both the ongoing mitigation of carbon dioxide in the atmosphere and future access to raw material.","PeriodicalId":21352,"journal":{"name":"Scandinavian Journal of Forest Research","volume":"37 1","pages":"200 - 212"},"PeriodicalIF":1.8,"publicationDate":"2022-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46603879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Balancing wood production and biodiversity in intensively managed boreal forest 在集约管理的北方森林中平衡木材生产和生物多样性

IF 1.8 3区农林科学

Scandinavian Journal of Forest Research Pub Date : 2022-04-03 DOI: 10.1080/02827581.2022.2066170

J. Eggers, J. Lundström, Tord Snäll, K. Öhman

{"title":"Balancing wood production and biodiversity in intensively managed boreal forest","authors":"J. Eggers, J. Lundström, Tord Snäll, K. Öhman","doi":"10.1080/02827581.2022.2066170","DOIUrl":"https://doi.org/10.1080/02827581.2022.2066170","url":null,"abstract":"ABSTRACT Fennoscandian boreal forests are managed intensively for wood production, which has had a negative impact on biodiversity. The harvesting pressure on the forests is likely to increase in the future because wood is seen as an important resource in a bio-based economy. Thus, there is an urgent need to better describe the trade-offs between wood production and biodiversity, and to understand how these trade-offs can be alleviated by adapting forest management. Encompassing a broad range of biodiversity aspects, we studied how forest management can increase biodiversity indicators while maintaining or increasing current harvest levels. We found that there is considerable leeway for forestry to pursue multiple objectives simultaneously in Fennoscandian forest landscapes. We show that it is possible to both increase harvests and structural elements of importance for biodiversity compared to present levels in a forest landscape that is representative of conditions in boreal forests in northern Sweden. Achieving this requires a variation in management strategies at the landscape level, and an adaptation of management practices to explicitly consider and implement multiple objectives in the planning process.","PeriodicalId":21352,"journal":{"name":"Scandinavian Journal of Forest Research","volume":"37 1","pages":"213 - 225"},"PeriodicalIF":1.8,"publicationDate":"2022-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46689195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Habitat and microhabitat suitability for Italian Platycerus species (Coleoptera: Lucanidae): elevation, slope aspect and deadwood features 意大利凤尾蝇(鞘翅目:凤尾蝇科)生境和微生境适宜性:海拔、坡向和枯木特征

IF 1.8 3区农林科学

Scandinavian Journal of Forest Research Pub Date : 2022-04-03 DOI: 10.1080/02827581.2022.2085786

Davide Scaccini

{"title":"Habitat and microhabitat suitability for Italian Platycerus species (Coleoptera: Lucanidae): elevation, slope aspect and deadwood features","authors":"Davide Scaccini","doi":"10.1080/02827581.2022.2085786","DOIUrl":"https://doi.org/10.1080/02827581.2022.2085786","url":null,"abstract":"ABSTRACT Deadwood is one of the main indicators of forest biodiversity. Stag beetle (Coleoptera: Lucanidae) larvae are saproxylic organisms specialized in living in deadwood colonized by microorganisms; these beetles are bioindicators of forest integrity and are currently under threat by habitat loss, climate change and intensive forest management. A multi-year collection of data on the habitat and microhabitat deadwood-related requirements of Platycerus caraboides (Linnaeus, 1758) and Platycerus caprea (De Geer, 1774) in northern Italian forests has shed new light on the bio-ecology of these two reclusive species. They are predominantly found at medium to high elevations on north-facing slopes. Their presence – but not their abundance – is related the plant taxon, diameter and decay stage of the deadwood, predominantly belonging to the family Fagaceae but – a new finding – also to the family Salicaceae (Salix caprea L.). Both species prefer narrow, faded, soft, very powdery, humid logs. Based on these findings, forestry management strategies should not overlook the importance of fine deadwood in managing saproxylic biodiversity in European forests.","PeriodicalId":21352,"journal":{"name":"Scandinavian Journal of Forest Research","volume":"37 1","pages":"172 - 181"},"PeriodicalIF":1.8,"publicationDate":"2022-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41927733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Legacy effects of past thinnings modulate drought stress reactions at present 过去疏林的遗留效应调节着当前的干旱胁迫反应

IF 1.8 3区农林科学

Scandinavian Journal of Forest Research Pub Date : 2022-04-03 DOI: 10.1080/02827581.2022.2096920

T. Hilmers, Gerhard Schmied, H. Pretzsch

{"title":"Legacy effects of past thinnings modulate drought stress reactions at present","authors":"T. Hilmers, Gerhard Schmied, H. Pretzsch","doi":"10.1080/02827581.2022.2096920","DOIUrl":"https://doi.org/10.1080/02827581.2022.2096920","url":null,"abstract":"ABSTRACT Thinning experiments were primarily established for analysing how treatment variants determine the amount and quality of wood production. Given climate change, they may also explain how silvicultural treatment determined drought resistance. Especially for tree species cultivated in regions beyond their natural range, silvicultural treatment may help mitigate drought stress. Here, we used the 47-years-old combined spacing-thinning trial Fürstenfeldbruck 612 and metrics for quantifying the trees’ recent and past growth to test if the information of tree treatment and development in the past significantly improved the prediction of their growth at present and if spacing and density regulation, kind of thinning, and temporal sequence of thinning significantly co-determined tree and stand growth during drought. Based on linear models, we revealed the following ecological legacy effects: (i) information of tree treatment and development in the past significantly improved the prediction of their growth at present, and (ii) higher densities, past thinnings from below, and low variations in thinning strength were beneficial for the tree and stand growth during drought. Thus, the prevailing repeated strong thinnings from above for promoting a selected collective of future crop trees may be questioned because of climate change.","PeriodicalId":21352,"journal":{"name":"Scandinavian Journal of Forest Research","volume":"37 1","pages":"182 - 199"},"PeriodicalIF":1.8,"publicationDate":"2022-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41863021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

A review of biology, epidemiology and management of Cronartium pini with emphasis on Northern Europe 以北欧为重点，综述了克罗纳芒的生物学、流行病学和管理

IF 1.8 3区农林科学

Scandinavian Journal of Forest Research Pub Date : 2022-04-03 DOI: 10.1080/02827581.2022.2085322

B. Samils, J. Stenlid

引用次数: 2

Thermal sum drives abundance and distribution range shift of Panolis flammea in Finland 热和驱动芬兰火烈鸟的丰度和分布范围转移

IF 1.8 3区农林科学

Scandinavian Journal of Forest Research Pub Date : 2022-02-17 DOI: 10.1080/02827581.2022.2060303

John Alexander Pulgarín Díaz, M. Melin, Olli-Pekka Tikkanen

{"title":"Thermal sum drives abundance and distribution range shift of Panolis flammea in Finland","authors":"John Alexander Pulgarín Díaz, M. Melin, Olli-Pekka Tikkanen","doi":"10.1080/02827581.2022.2060303","DOIUrl":"https://doi.org/10.1080/02827581.2022.2060303","url":null,"abstract":"ABSTRACT Climate change has assisted the northward range expansion of various forest insect pests, increasing the risk of forest damage in Northern Europe. The pine beauty moth, Panolis flammea, is common in European pine stands with cyclical outbreaks that have damaged thousands of hectares. In the 1970s, its Finnish northern distribution limit was reported to be 64°N. We re-evaluated the northernmost distribution limit of P. flammea in Finland and studied the effect of temperature sum on its abundance. We used pheromone-based traps throughout Finland in 2019–2020. The number of individuals caught in each trap was coupled with previous year thermal sums from the same location, and the relationship between them was analysed using a generalised linear mixed model. P. flammea had spread into northern Finland to 68°51’N, at ∼10.2 km/year, 50 years ahead of earlier predictions. We found a non-linear correlation between thermal sums and P. flammea abundance, increasing from cold to warm areas. Given the climate change scenarios for Fennoscandia, its range and population could continue to increase, allowing it to become another widespread coniferous-forest insect pest. Understanding the effects of temperature on its populations will allow us to model their probable future distribution and population dynamics.","PeriodicalId":21352,"journal":{"name":"Scandinavian Journal of Forest Research","volume":"37 1","pages":"93 - 98"},"PeriodicalIF":1.8,"publicationDate":"2022-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46782454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Precision thinning – a comparison of optimal stand-level and pixel-level thinning 精确稀疏–最佳林分水平和像素水平稀疏的比较

IF 1.8 3区农林科学

Scandinavian Journal of Forest Research Pub Date : 2022-02-17 DOI: 10.1080/02827581.2022.2044902

Magnus C Persson, R. Trubins, L. Eriksson, J. Bergh, J. Sonesson, E. Holmström

{"title":"Precision thinning – a comparison of optimal stand-level and pixel-level thinning","authors":"Magnus C Persson, R. Trubins, L. Eriksson, J. Bergh, J. Sonesson, E. Holmström","doi":"10.1080/02827581.2022.2044902","DOIUrl":"https://doi.org/10.1080/02827581.2022.2044902","url":null,"abstract":"ABSTRACT Precision forestry allows decision-making on tree level or pixel level, as compared to stand-level data. However, little is known about the importance of precision in thinning decisions and its long-term effects on within-stand variation, stand economy and growth. In this study, silviculture was optimized for Net Present Value (NPV) in 20 conifer-dominated forest stands in hemi-boreal southern Sweden. The precision-thinning approach, Precision Thinning (PT), is compared with a stand-level approach, Stand Level Thinning (SLT) that is optimized for the same criteria but based on stand-level data. The results suggest no substantial long-term benefit or drawback in implementing thinning decisions based on pixel-level data as compared to stand-level data when optimizing stand economy. The result variables NPV and Mean annual increment of living stem volume (MAInet) were not higher for PT than for SLT. The within-stand variation in basal area (m2/ha−1) was lower at the end of the rotation compared to the start of the simulation for both SLT and PT. At the end of the rotation, SLT had higher variation in basal area compared to PT. However, pixel-level information enables adapting the silviculture to the within-stand variation which may favour other forest management goals than strictly financial goals.","PeriodicalId":21352,"journal":{"name":"Scandinavian Journal of Forest Research","volume":"37 1","pages":"99 - 108"},"PeriodicalIF":1.8,"publicationDate":"2022-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46975651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1