Forestry Chronicle最新文献_第4页

Evaluating and modeling variation in site-level maximum carrying capacity of mixed-species forest stands in the Acadian Region of northeastern North America 北美东北部阿卡迪亚地区混合物种林分场地水平最大承载力变化的评估和建模

IF 0.6 4区农林科学

Forestry Chronicle Pub Date : 2019-12-01 DOI: 10.5558/tfc2019-026

A. Weiskittel, C. Kuehne

引用次数: 10

Eighteen-year growth responses to thinning and fertilization of a height-repressed lodgepole pine stand in interior British Columbia 不列颠哥伦比亚省内陆一个高度抑制的黑松林分18年生长对间伐和施肥的响应

IF 0.6 4区农林科学

Forestry Chronicle Pub Date : 2019-12-01 DOI: 10.5558/tfc2019-029

C. Prescott, L. DeMontigny, G. Harper

引用次数: 8

Forest growth trends in Canada 加拿大森林生长趋势

IF 0.6 4区农林科学

Forestry Chronicle Pub Date : 2019-12-01 DOI: 10.5558/tfc2019-027

C. Loehle, Kevin A. Solarik

{"title":"Forest growth trends in Canada","authors":"C. Loehle, Kevin A. Solarik","doi":"10.5558/tfc2019-027","DOIUrl":"https://doi.org/10.5558/tfc2019-027","url":null,"abstract":"Reports have identified changes in abiotic factors that potentially affect forest growth. A synthesis of studies of thesechanges in Canada over the past century was undertaken to evaluate how these factors may be influencing forest growth.Reviewed papers used multiple sources of data including long-term inventory plots, tree-ring reconstructions, historicalgeographic data, and forest growth models. The synthesis showed that several positive growth trends were found inBritish Columbia and eastern Canada, while results from the western interior of Canada were mixed. Trembling aspen(Populus tremuloides Michx.) dieback has been noted due to severe and prolonged drought events, with growth reduc-tions and mortality also documented for conifers in the western interior. Studies have also found slow forest expansionin many areas and at the northern tree-line. Overall, authors attributed positive forest growth trends to rising CO₂ con-centrations, N deposition, increased precipitation, and increased temperature. Growth declines were generally attributedto a combination of increased temperatures and reduced precipitation. Studies also differed due to time periods consid-ered and how age effects were corrected. Methodological issues were identified that led to contradictory results betweensome studies. These issues need further study.","PeriodicalId":50433,"journal":{"name":"Forestry Chronicle","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47082456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Modelling wood density and modulus of elasticity in white spruce plantations in Eastern Québec 魁北克东部白云杉人工林的木材密度和弹性模量建模

IF 0.6 4区农林科学

Forestry Chronicle Pub Date : 2019-12-01 DOI: 10.5558/tfc2019-028

F. Tony, Ferraille Thibaut, G. Guillaume, Barrette Julie, S. Robert

{"title":"Modelling wood density and modulus of elasticity in white spruce plantations in Eastern Québec","authors":"F. Tony, Ferraille Thibaut, G. Guillaume, Barrette Julie, S. Robert","doi":"10.5558/tfc2019-028","DOIUrl":"https://doi.org/10.5558/tfc2019-028","url":null,"abstract":"Forest managers have to take into account multiple objectives such as stand yield, wood quality attributes, ecological constraints and social considerations when making their decisions. The objective of the present study is to build (i) a dynamicmodulus of elasticity (MOEdyₙ) model and (ii) a core wood density (WDcₒᵣₑ) model for white spruce plantations in theBas-Saint-Laurent Region (Quebec, Canada) to quantify their inter- and intra-stand variations in order for managers tobetter weigh their different options. Using data obtained from 54 sample plots in 31 white spruce plantations from Eastern Quebec, the MOEdyₙ of 143 trees and the WDcₒᵣₑ of 162 trees were analysed. Dendrometric and stand variables wereused to build a MOEdyₙ linear mixed-effect model and a WD multiple linear regression model. The MOEdyₙ model explained 66.8% of the total variation, 1.1% of which originated from inter-stand variations. MOEdyₙ was proportionalto diameter at breast height (DBH) and non-linearly decreased with tree growth rate. The WDcₒᵣₑ model explained 16.0%of the total variation. The intra-stand variations were represented by a negative relationship between WDcₒᵣₑ and growthrate. Inter-stand variations were accounted for by site index and altitude. The performance of the MOEdyₙ model was satisfactory and in accordance with the literature. However, the WDcₒᵣₑ model was below standard, mainly as a consequenceof unaccounted intra-individual variations. Nonetheless, raw simulations using these models suggest that white sprucewood from plantations may benefit from intensive forest management.","PeriodicalId":50433,"journal":{"name":"Forestry Chronicle","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5558/tfc2019-028","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45882463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Assessing tree-related microhabitat retention according to a harvest gradient using tree-defect surveys as proxies in Eastern Canadian mixedwood forests 根据收获梯度评估与树木相关的微栖息地保留率，使用树木缺陷调查作为加拿大东部混合森林的替代

IF 0.6 4区农林科学

Forestry Chronicle Pub Date : 2019-12-01 DOI: 10.5558/tfc2019-025

M. Maxence, Patricia Raymond

引用次数: 13

Quantifying the effect of non-spatial and spatial forest stand structure on rainfall partitioning in mountain forests, Southern China 华南山地林分非空间和空间结构对降雨分配的量化影响

IF 0.6 4区农林科学

Forestry Chronicle Pub Date : 2018-05-28 DOI: 10.5558/TFC2018-025

LiuChunxia, WangYujie, Machao, WangYunqi, ZhangHuilan

引用次数: 7

Interaction between Hymenoscyphus fraxineus and Phytophthora species on young Fraxinus excelsior seedlings 细花膜壳虫和疫霉菌在细花幼苗上的相互作用

IF 0.6 4区农林科学

Forestry Chronicle Pub Date : 2018-05-28 DOI: 10.5558/TFC2018-020

Milenkovi´cIvan, KečaNenad, Karadži´cDragan, A. NowakowskaJustyna, OszakoTomasz, SikoraKatarzyna, TkaczykMiłosz

{"title":"Interaction between Hymenoscyphus fraxineus and Phytophthora species on young Fraxinus excelsior seedlings","authors":"Milenkovi´cIvan, KečaNenad, Karadži´cDragan, A. NowakowskaJustyna, OszakoTomasz, SikoraKatarzyna, TkaczykMiłosz","doi":"10.5558/TFC2018-020","DOIUrl":"https://doi.org/10.5558/TFC2018-020","url":null,"abstract":"Common pathogenicity tests on 16-month-old ash plants were performed using isolates of Hymenoscyphus fraxineus and three different Phytophthora spp. isolated under declining ash trees in Wolica Nature reserve in Poland. There were no statistically significant differences among the different inoculation treatments and lesion lengths averaged 1.67 cm. After analyses of inoculated roots, five out of 10 root parameters showed statistically significant differences, and after a Duncan’s Multiple Range test, significant differences were found with control plants while there were no differences among the treatments. The largest root loss was with the treatment inoculated with both H. fraxineus and P. plurivora (HF + PP), and both fine and total root lengths were 2.30 and 2.27 times smaller, respectively, than the non-inoculated control. The earliest mortality of young ash plants was observed also with the HF + PP treatment. Results showed high aggressiveness of H. fraxineus to young ash plants, with indications t...","PeriodicalId":50433,"journal":{"name":"Forestry Chronicle","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2018-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5558/TFC2018-020","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46816124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Incidence of slime flux in deciduous trees of Southern Ontario 安大略省南部落叶树黏液流量的发生率

IF 0.6 4区农林科学

Forestry Chronicle Pub Date : 2018-05-28 DOI: 10.5558/TFC2018-023

RobertsHunter, HsiangTom

引用次数: 2

Effects of copper and silver nanoparticles on growth of selected species of pathogenic and wood-decay fungi in vitro 纳米铜和银对病原真菌和木材腐朽真菌体外生长的影响

IF 0.6 4区农林科学

Forestry Chronicle Pub Date : 2018-05-28 DOI: 10.5558/TFC2018-017

Aleksandrowicz-TrzcińskaMarta, SzaniawskiAdam, OlchowikJacek, DrozdowskiStanisław

引用次数: 18

Effects of Lactarius deliciosus and Rhizopogon roseolus ectomycorrhyzal fungi on seeds and seedlings of Scots and stone pines inoculated with Fusarium oxysporum and Fusarium verticillioides 美味乳菇和玫瑰根霉对接种尖孢镰刀菌和轮叶镰刀菌的苏格兰松和石松种子和幼苗的影响

IF 0.6 4区农林科学

Forestry Chronicle Pub Date : 2018-05-28 DOI: 10.5558/TFC2018-019

J. Suárez, David Villada, J. Rueda, F. M. Alves-Santos, J. Diez

{"title":"Effects of Lactarius deliciosus and Rhizopogon roseolus ectomycorrhyzal fungi on seeds and seedlings of Scots and stone pines inoculated with Fusarium oxysporum and Fusarium verticillioides","authors":"J. Suárez, David Villada, J. Rueda, F. M. Alves-Santos, J. Diez","doi":"10.5558/TFC2018-019","DOIUrl":"https://doi.org/10.5558/TFC2018-019","url":null,"abstract":"Two isolates of the edible ectomycorrhizal fungi (ECM), Lactarius deliciosus and Rhizopogon roseolus, were tested against Fusarium oxysporum and F. verticillioides, causal agents of damping-off on seeds and seedlings of Scots pine (Pinus sylvestris) and stone pine (Pinus pinea). The effects of ECM on Fusarium spp. in the rhizosphere of Scots and stone pines were evaluated by: (1) co-inoculating ECM and Fusarium when seeding (seed test) and (2) co-inoculating eight-week-old seedlings (seedling test). The seed tests showed significant reduction of Scots pine seed germination when treated with F. verticillioides, but this effect was absent when co-inoculated with R. roseolus. Higher germination rates were observed in stone pine when F. oxysporum was co-inoculated with L. deliciosus than the pathogen inoculation alone. In the seedling test, Scots and stone pines were not apparently affected by Fusarium spp. No obvious changes in plant growth-related variables were observed in either assay. Root colonization of Scots and stone pine seedlings by R. roseolus was 15.5% and 12% for the seed assay, as well as 21.6% and 11% for the seedling assay. Lactarius deliciosus mycorrhizal roots were found only in Scots pine seedlings (10%). Rhizopogon roseolus and L. deliciosus are two promising fungi for pine seedling protection against Fusarium damping-off at nurseries.","PeriodicalId":50433,"journal":{"name":"Forestry Chronicle","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2018-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5558/TFC2018-019","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44112469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 5