Scandinavian Journal of Forest Research最新文献_第8页

Stand-level growth models for long-term projections of the main species groups in Norway 挪威主要物种群长期预测的林分水平增长模型

IF 1.8 3区农林科学

Scandinavian Journal of Forest Research Pub Date : 2022-02-17 DOI: 10.1080/02827581.2022.2056632

Kobra Maleki, R. Astrup, C. Kuehne, J. Mclean, C. Antón-Fernández

{"title":"Stand-level growth models for long-term projections of the main species groups in Norway","authors":"Kobra Maleki, R. Astrup, C. Kuehne, J. Mclean, C. Antón-Fernández","doi":"10.1080/02827581.2022.2056632","DOIUrl":"https://doi.org/10.1080/02827581.2022.2056632","url":null,"abstract":"ABSTRACT Stand-level growth and yield models are important tools that support forest managers and policymakers. We used recent data from the Norwegian National Forest Inventory to develop stand-level models, with components for dominant height, survival (number of survived trees), ingrowth (number of recruited trees), basal area, and total volume, that can predict long-term stand dynamics (i.e. 150 years) for the main species in Norway, namely Norway spruce (Picea abies (L.) Karst.), Scots pine (Pinus sylvestris L.), and birch (Betula pubescens Ehrh. and Betula pendula Roth). The data used represent the structurally heterogeneous forests found throughout Norway with a wide range of ages, tree size mixtures, and management intensities. This represents an important alternative to the use of dedicated and closely monitored long-term experiments established in single species even-aged forests for the purpose of building these stand-level models. Model examination by means of various fit statistics indicated that the models were unbiased, performed well within the data range and extrapolated to biologically plausible patterns. The proposed models have great potential to form the foundation for more sophisticated models, in which the influence of other factors such as natural disturbances, stand structure including species mixtures, and management practices can be included.","PeriodicalId":21352,"journal":{"name":"Scandinavian Journal of Forest Research","volume":"37 1","pages":"130 - 143"},"PeriodicalIF":1.8,"publicationDate":"2022-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49332438","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

Life cycle analysis to estimate CO2 e emissions from forest harvesting systems in intensively managed Pinus radiata plantations 生命周期分析用于估算集约管理辐射松人工林森林采伐系统的二氧化碳排放量

IF 1.8 3区农林科学

Scandinavian Journal of Forest Research Pub Date : 2022-02-17 DOI: 10.1080/02827581.2022.2044901

R. Alzamora, Waldo Oviedo, R. Rubilar

{"title":"Life cycle analysis to estimate CO2 e emissions from forest harvesting systems in intensively managed Pinus radiata plantations","authors":"R. Alzamora, Waldo Oviedo, R. Rubilar","doi":"10.1080/02827581.2022.2044901","DOIUrl":"https://doi.org/10.1080/02827581.2022.2044901","url":null,"abstract":"ABSTRACT A Life Cycle Analyses (LCA) assessment was evaluated comparing three harvesting systems on intensively managed Pinus radiata (radiata pine) plantations growing in the Biobío Region, Chile. Evaluated systems considered semi-mechanized, mechanized, and tower logging in steep slope forest operations. Our LCA study focused on CO2 e emissions from six harvesting activities: felling, logging, processing, sorting, loading, and transportation, all under the ISO 14040 and ISO 14044 standards. The average and maximum monthly production scenarios were the highest for the semi-mechanized system with 24 and 25.2 kg CO2 e m−3, followed by the tower logging with 23.2 and 24.5 kg CO2 e m−3 and, lastly, the mechanized system with 11 and 12.1 kg CO2 e m−3. Similar to other studies, harvesting phases that contributed the most were logging, loading and transport. Concerning LCA stages, forest equipment operation generated the highest CO2 e level across the three harvesting systems where fuel consumption was the activity that contributed with 76% of CO2 e for the mechanized system, and 50% in the case of the tower logging and semi-mechanized systems. The mechanized system had the highest fuel use efficiency and the lowest CO2 e emissions.","PeriodicalId":21352,"journal":{"name":"Scandinavian Journal of Forest Research","volume":"37 1","pages":"144 - 152"},"PeriodicalIF":1.8,"publicationDate":"2022-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49493007","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

Successful spruce regenerations – impact of site preparation and the use of variables from digital elevation models in decision-making? 成功的云杉再生——场地准备的影响和决策中数字高程模型变量的使用?

IF 1.8 3区农林科学

Scandinavian Journal of Forest Research Pub Date : 2022-01-02 DOI: 10.1080/02827581.2022.2028895

P. Nordin, E. Olofsson, K. Hjelm

{"title":"Successful spruce regenerations – impact of site preparation and the use of variables from digital elevation models in decision-making?","authors":"P. Nordin, E. Olofsson, K. Hjelm","doi":"10.1080/02827581.2022.2028895","DOIUrl":"https://doi.org/10.1080/02827581.2022.2028895","url":null,"abstract":"ABSTRACT Various site preparation methods are used in Swedish forestry. However, some methods can lead to unnecessary disturbance, which could be avoided by using variables from digital elevation models in management decisions. The current study aimed to investigate how different site preparation methods, and their intensities, affect Norway spruce (Picea abies (L.) Karst.) regeneration. Additional aims were to clarify how these methods affect soil disturbance and vegetation development, along with how variables from digital elevation models could be used in silvicultural decision-making. Experimental sites were established in southern Sweden to assess five different site preparation treatments with different planting densities: (1) conventional disc trenching 2500 seedlings/ha (DT2500); (2) low intensity disc trenching 1250 seedlings/ha (LDT1250); (3) low intensity disc trenching 2500 seedlings/ha (LDT2500); (4) low-intensity patch-wise 1250 seedlings/ha (PW1250); and (5) patch-wise 2500 seedlings/ha (PW2500). Site preparation intensity had no effect on seedling growth and, survival or vegetation development; the tested treatments differed in terms of soil disturbance. Planting spot properties and weather conditions influenced the seedling performance. DTW and slope could not substantially explain either seedling growth or survival. The results indicate that the choice of site preparation method should consider flexibility when planting while adapting the level of disturbance accordingly.","PeriodicalId":21352,"journal":{"name":"Scandinavian Journal of Forest Research","volume":"37 1","pages":"33 - 44"},"PeriodicalIF":1.8,"publicationDate":"2022-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46735938","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

Epigenetic memory effects in Norway spruce: are they present after the age of two years? 挪威云杉的表观遗传记忆效应：它们在两岁后出现吗？

IF 1.8 3区农林科学

Scandinavian Journal of Forest Research Pub Date : 2022-01-02 DOI: 10.1080/02827581.2022.2045349

T. Skrøppa

{"title":"Epigenetic memory effects in Norway spruce: are they present after the age of two years?","authors":"T. Skrøppa","doi":"10.1080/02827581.2022.2045349","DOIUrl":"https://doi.org/10.1080/02827581.2022.2045349","url":null,"abstract":"ABSTRACT Short-term trials on cultivated soil were planted with families of Norway spruce that had shown epigenetic memory effects in early tests up to age two years. Measurements and assessments were made of phenology traits, tree heights and stem defects until age 16 years in these trials. The memory effects of the temperature conditions during embryo development and seed maturation were confirmed for the timing of bud flush and for start and cessation of shoot elongation at age six years. The mean differences in timing of these events caused by temperature treatments were on average less than two days. They were considerably larger for families with strong effects on terminal bud set at the end of the first growing season. The memory effects did not result in a prolonged shoot growth period, nor did they affect height growth. Interaction effects expressed in adaptive traits between factorial treatments of temperature and daylength during seed production were large in the short-term trial and were still present at age nine years. The results presented demonstrate that strong memory effects observed in early tests may also be expressed in phenology traits for at least the next five growing seasons.","PeriodicalId":21352,"journal":{"name":"Scandinavian Journal of Forest Research","volume":"37 1","pages":"6 - 13"},"PeriodicalIF":1.8,"publicationDate":"2022-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45524455","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

Phenotypic plasticity in Populus trichocarpa clones across environments in the Nordic–Baltic region 北欧-波罗的海地区毛果杨无性系在不同环境中的表型可塑性

IF 1.8 3区农林科学

Scandinavian Journal of Forest Research Pub Date : 2022-01-02 DOI: 10.1080/02827581.2022.2039279

A. Rönnberg-Wästljung, Anneli Adler, Almir Karacic, K. Liepiņš, Thomas J. Richards, P. Ingvarsson, M. Weih

{"title":"Phenotypic plasticity in Populus trichocarpa clones across environments in the Nordic–Baltic region","authors":"A. Rönnberg-Wästljung, Anneli Adler, Almir Karacic, K. Liepiņš, Thomas J. Richards, P. Ingvarsson, M. Weih","doi":"10.1080/02827581.2022.2039279","DOIUrl":"https://doi.org/10.1080/02827581.2022.2039279","url":null,"abstract":"ABSTRACT\u0000 Transition towards a bio-based society requires large amounts of woody biomass to be converted into biofuels and biomaterials. Populus species are good candidates for growth in short rotations, but there is a lack of climate-adapted plant material suitable for growth at the high latitudes of the Nordic–Baltic region. Here we studied the growth and phenology traits in 63 Populus trichocarpa clones earlier preliminary selected for growth at northern latitudes, in three different field sites; i.e. in central Sweden, eastern and western Latvia. The material showed moderate broad sense heritabilities, with high values for phenology traits, indicating opportunities for selection. Genotype × environment (g × e) interaction was identified for all traits, but the phenotypic correlation between pairs of sites provided more detailed information indicating the strength of the g × e interaction. The between-clone variation in plasticity was high, and we identified some clones showing a high and stable performance across the three sites. These clones are of particular interest for the commercial deployment and future breeding of Populus material for the Nordic–Baltic region.","PeriodicalId":21352,"journal":{"name":"Scandinavian Journal of Forest Research","volume":"37 1","pages":"1 - 5"},"PeriodicalIF":1.8,"publicationDate":"2022-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43963249","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

Drought could promote the heartwood formation in Dalbergia odorifera by enhancing the transformation of starch to soluble sugars 干旱可通过促进淀粉向可溶性糖的转化促进降香药材心材的形成

IF 1.8 3区农林科学

Scandinavian Journal of Forest Research Pub Date : 2021-12-03 DOI: 10.1080/02827581.2021.2009022

Zhiyi Cui, Zengjiang Yang, Daping Xu, Xiaofei Li

{"title":"Drought could promote the heartwood formation in Dalbergia odorifera by enhancing the transformation of starch to soluble sugars","authors":"Zhiyi Cui, Zengjiang Yang, Daping Xu, Xiaofei Li","doi":"10.1080/02827581.2021.2009022","DOIUrl":"https://doi.org/10.1080/02827581.2021.2009022","url":null,"abstract":"ABSTRACT The heartwood of Dalbergia odorifera T. Chen (D. odorifera) is highly valuable. It was speculated that drought could promote heartwood formation in D. odorifera. To test this hypothesis, we artificially simulated conditions of low and high soil moisture content and investigated whether D. odorifera trees living in habitats with contrasting soil water conditions display distinct heartwood formation. Besides, we performed a preliminary study to explore the possible mechanism of drought affecting heartwood formation in D. odorifera in terms of non-structural carbohydrates (NSC). Higher heartwood formation percentage and heartwood size were observed in drought-treated trees. The heartwood density of drought-treated trees was significantly greater than that of control and the oil content of heavy drought-treated heartwood was significantly higher than that of the other treatments. None of water treatments had a significant effect on the essential oil components of heartwood. Furthermore, the effects of water treatments on the total amount of NSC were very limited; however drought treatments enhanced the transformation of starch to soluble sugars compared to control. This study confirmed the hypothesis that drought could promote the heartwood formation in D. odorifera, not by changing the total amount of NSC but by changing the component proportion of NSC.","PeriodicalId":21352,"journal":{"name":"Scandinavian Journal of Forest Research","volume":"37 1","pages":"23 - 32"},"PeriodicalIF":1.8,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47435185","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

Regeneration failure of Scots pine changes the species composition of young forests 苏格兰松再生失败改变幼林物种组成

IF 1.8 3区农林科学

Scandinavian Journal of Forest Research Pub Date : 2021-11-27 DOI: 10.1080/02827581.2021.2005133

M. Ara, I. Barbeito, C. Kalén, U. Nilsson

{"title":"Regeneration failure of Scots pine changes the species composition of young forests","authors":"M. Ara, I. Barbeito, C. Kalén, U. Nilsson","doi":"10.1080/02827581.2021.2005133","DOIUrl":"https://doi.org/10.1080/02827581.2021.2005133","url":null,"abstract":"ABSTRACT How seedling mortality and browsing affects species composition of regenerating forests has been mostly studied on a small scale. Yet, large-scale analyses based on extensive data are essential for robust prediction of species composition in young forests. In this study, we used a dataset from a national inventory of young forests (1–4 metres in height) to investigate the species composition of young forests across Sweden. We found that most of the regenerated forest area (almost 90%) was planted with Norway spruce (southern Sweden) and Scots pine (northern Sweden). Regeneration of Norway spruce was generally relatively successful but as a consequence of seedling mortality and browsing, almost 40% of the area regenerated with Scots pine will probably not develop into pine-dominated stands. Thus, low survival of Scots pine seedlings and trees can profoundly change the trajectory of species composition of the young forest from what was originally intended, and a large proportion of the young stands may develop into mixtures of conifers and broadleaves. While such mixtures may benefit certain biodiversity and ecosystem services, a loss of Scots pine dominated stands may also have adverse impacts on the economic returns as well as pine-dependent biodiversity and recreational values.","PeriodicalId":21352,"journal":{"name":"Scandinavian Journal of Forest Research","volume":"37 1","pages":"14 - 22"},"PeriodicalIF":1.8,"publicationDate":"2021-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44307631","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: 11

Utility of the Forest Data Bank for forest management – polish case study and legal analysis 森林数据库对森林管理的效用-波兰案例研究和法律分析

IF 1.8 3区农林科学

Scandinavian Journal of Forest Research Pub Date : 2021-11-20 DOI: 10.1080/02827581.2021.2005134

A. Klimach, Michał Pietkiewicz

{"title":"Utility of the Forest Data Bank for forest management – polish case study and legal analysis","authors":"A. Klimach, Michał Pietkiewicz","doi":"10.1080/02827581.2021.2005134","DOIUrl":"https://doi.org/10.1080/02827581.2021.2005134","url":null,"abstract":"ABSTRACT This article aimed to determine whether the use of the “Forest Data Bank” information system can allow for fast, and easy access to data necessary for forest management and how it can be used for forest management purposes. In this study, we present what constitutes the term “forest management” as well as what activities are included in forest management. We propose that forest management should be seen as an inseparable part of the concept of sustainable forest management, i.e. the pursuit of maintaining and strengthening economic, social and environmental values of all types of forests. Forest management is also linked to the Sustainable Development Goals, which also aim to ensure the protection and restoration of terrestrial and inland ecosystems, including forests. Using Quantitative research with comparative method, descriptive research approach and also the abductive research approach, the elements of forest management in which the Forest Data Bank can be used taking Poland as an example was analysed. The integration of cadastral data would facilitate the use of this database. And finally – what is most important – Forest Data Bank, due to its database structure can be used with other land administration databases.","PeriodicalId":21352,"journal":{"name":"Scandinavian Journal of Forest Research","volume":"37 1","pages":"83 - 91"},"PeriodicalIF":1.8,"publicationDate":"2021-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59367053","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

Changes in soil carbon and nitrogen stocks and microbial community after forest conversion in a subtropical region 亚热带森林转换后土壤碳氮储量及微生物群落的变化

IF 1.8 3区农林科学

Scandinavian Journal of Forest Research Pub Date : 2021-11-12 DOI: 10.1080/02827581.2021.1998598

Jiebao Liu, Xiaofei Liu, Maokui Lyu, Jinsong Wang, Yiqing Li, Jianfen Guo

{"title":"Changes in soil carbon and nitrogen stocks and microbial community after forest conversion in a subtropical region","authors":"Jiebao Liu, Xiaofei Liu, Maokui Lyu, Jinsong Wang, Yiqing Li, Jianfen Guo","doi":"10.1080/02827581.2021.1998598","DOIUrl":"https://doi.org/10.1080/02827581.2021.1998598","url":null,"abstract":"ABSTRACT The quantitative understanding of different land use is still limited. We selected typical natural secondary forest (NSF) and Chinese-fir plantation (CPF) in southern China to quantify changes of soil carbon (C) and nitrogen (N) as well as microbial community composition after forest conversion in the soil profile up to 60 cm. The results showed that soil CN stocks and all functional microbial groups in CPF were significantly lower in the topsoil but did not change in the subsoil (10–60 cm) compared to those in NSF after 24 years conversion. Soil C/N ratio did not differ between the two forests for all soil depths. Correlation analysis showed that the abundance of microbial groups in the topsoil was significantly related to soil organic carbon, total nitrogen and forest floor N stock. Redundancy analysis showed that available N, especially NO3 −–N, was the most dominant factor influencing the microbial community composition. These findings suggest that the plantation could inhibit the accumulation of soil C and N, but the changes are primarily evident in surface soil after conversion. The study improves our understanding of soil C, N and microbial community changes under different land uses and provides insights into sustainable management of Chinese forests.","PeriodicalId":21352,"journal":{"name":"Scandinavian Journal of Forest Research","volume":"36 1","pages":"575 - 584"},"PeriodicalIF":1.8,"publicationDate":"2021-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44403950","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: 4

Identifying old Norway spruce and Scots pine trees by morphological traits and site characteristics 用形态特征和场地特征鉴定挪威云杉和苏格兰松树

IF 1.8 3区农林科学

Scandinavian Journal of Forest Research Pub Date : 2021-11-05 DOI: 10.1080/02827581.2021.1996628

Eivind Handegard, I. Gjerde, O. Bollandsås, Ken Olaf Storaunet

{"title":"Identifying old Norway spruce and Scots pine trees by morphological traits and site characteristics","authors":"Eivind Handegard, I. Gjerde, O. Bollandsås, Ken Olaf Storaunet","doi":"10.1080/02827581.2021.1996628","DOIUrl":"https://doi.org/10.1080/02827581.2021.1996628","url":null,"abstract":"ABSTRACT Old trees are important for biodiversity, and the process of their identification is a critical process in their conservation. However, determining the tree age by core extraction, ring counts, and eventually, cross-dating by means of dendrochronology is labor-intensive and expensive. Here we examine the alternative method of estimating determining tree age by visual characteristics for old Norway spruce and Scots pine trees. We used forest stands previously identified as “Old tree habitats” by visual criteria in Norwegian boreal forests. The efficiency of this method was tested using pairwise comparison of the age of core samples from trees within these sites, and within neighboring sites. Age regression models were constructed from morphological traits and site variables to investigate how accurately old trees can be detected. Cored trees in the Old-tree habitats were on average 41.9 years older than compared to a similar selection of trees from nearby mature forests. Several characteristics such as bark structure, stem taper and visible growth eccentricities can be used to identify old Norway spruce and Scots pine trees. Old trees were often found on less productive sites. Due to the wide range of environments included in the study, we suggest that these findings can be generalized to other parts of the boreal zone.","PeriodicalId":21352,"journal":{"name":"Scandinavian Journal of Forest Research","volume":"36 1","pages":"550 - 562"},"PeriodicalIF":1.8,"publicationDate":"2021-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42296065","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