Canadian Journal of Forest Research最新文献_第4页

Combined application of organic manure and reduced-rate chemical fertilizer improved growth, nutrient use efficiency, biomass accumulation, and carbon sequestration of Zanthoxylum armatum seedlings 有机肥和减量化肥联合施用提高了花椒幼苗的生长、养分利用效率、生物量积累和固碳能力

IF 2.2 3区农林科学

Canadian Journal of Forest Research Pub Date : 2023-09-07 DOI: 10.1139/cjfr-2023-0115

Tahseen Saba, Fariha Saleem, Wanlin Liu, Jing-yan Wang, W. Hui, Hafsa Nazir, W. Gong

{"title":"Combined application of organic manure and reduced-rate chemical fertilizer improved growth, nutrient use efficiency, biomass accumulation, and carbon sequestration of Zanthoxylum armatum seedlings","authors":"Tahseen Saba, Fariha Saleem, Wanlin Liu, Jing-yan Wang, W. Hui, Hafsa Nazir, W. Gong","doi":"10.1139/cjfr-2023-0115","DOIUrl":"https://doi.org/10.1139/cjfr-2023-0115","url":null,"abstract":"The possibility of incorporating organic manure (OM) to reduced rates of chemical fertilizers (CF) to augment biomass production and carbon sequestration (Cseq), and the role of nitrogen (N), phosphorus (P) and potassium (K) uptake in vegetation Cseq was investigated through pot experiment with one-year-old Zanthoxylum armatum seedlings. Seven treatments were designed including NPK, PK, NP, NK, OM, MNPK (50%NPK+50%OM), and control (CK, no fertilization). MNPK application improved nutrient uptake of 2.76-fold N, 3.34-fold P, and 2.01-fold K, resulting in the highest biomass production and biomass Cseq (1.65-fold) as compared to CK. Correlation and redundancy analysis revealed that Cseq is significantly associated to biomass production (r = 0.994) and regulated by N and P uptake. The highest NUE was recorded for N (38.8%), followed by K (21.1%), and P (16.4%) under MNPK application. Therefore, MNPK could be an optimum measure regarding fertilizer saving, biomass production and attaining C neutrality.","PeriodicalId":9483,"journal":{"name":"Canadian Journal of Forest Research","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46297682","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

Hepatic Acyl CoA Oxidase1 Inhibition Modifies Brain Lipids and Electrical Properties of Dentate Gyrus. 肝酰基CoA氧化酶1抑制可改变脑脂质和齿状回的电特性

3区农林科学

Canadian Journal of Forest Research Pub Date : 2023-09-01 DOI: 10.32598/bcn.2021.3500.1

Shahrbanoo Rafiei, Fariba Khodagholi, Hamid Gholami Pourbadie, Leila Dargahi, Fereshteh Motamedi

{"title":"Hepatic Acyl CoA Oxidase1 Inhibition Modifies Brain Lipids and Electrical Properties of Dentate Gyrus.","authors":"Shahrbanoo Rafiei, Fariba Khodagholi, Hamid Gholami Pourbadie, Leila Dargahi, Fereshteh Motamedi","doi":"10.32598/bcn.2021.3500.1","DOIUrl":"10.32598/bcn.2021.3500.1","url":null,"abstract":"Introduction: Peroxisomes are essential organelles in lipid metabolism. They contain enzymes for β-oxidation of very long-chain fatty acids (VLCFA) that cannot be broken down in mitochondria. Reduced expression in hepatic acyl-CoA oxidase 1 (ACOX1), a peroxisome β-oxidation enzyme, followed by modification of the brain fatty acid profile has been observed in aged rodents. These studies have suggested a potential role for peroxisome β-oxidation in brain aging. This study was designed to examine the effect of hepatic ACOX1 inhibition on brain fatty acid composition and neuronal cell activities of young rats (200-250 g).Methods: A specific ACOX1 inhibitor, 10, 12- tricosadiynoic acid (TDYA), 100 μg/kg (in olive oil) was administered by daily gavage for 25 days in male Wistar rats. The brain fatty acid composition and electrophysiological properties of dentate gyrus granule cells were determined using gas chromatography and whole-cell patch-clamp, respectively.Results: A significant increase in C20, C22, C18:1, C20:1, and a decrease of C18, C24, C20:3n6, and C22:6n3 were found in 10, 12- tricosadiynoic acid (TDYA) treated rats compared to the control group. The results showed that ACOX1 inhibition changes fatty acid composition similar to old rats. ACOX1 inhibition caused hyperpolarization of resting membrane potential, and also reduction of input resistance, action potential duration, and spike firing. Moreover, ACOX1 inhibition increased rheobase current and afterhyperpolarization amplitude in granule cells.Conclusion: The results indicated that systemic inhibition of ACOX1 causes hypo-excitability of neuronal cells. These results provide new evidence on the involvement of peroxisome function and hepatic ACOX1 activity in brain fatty acid profile and the electrophysiological properties of dentate gyrus cells.","PeriodicalId":9483,"journal":{"name":"Canadian Journal of Forest Research","volume":"30 1","pages":"663-674"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11016873/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86169171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessing future climate trends and implications for managed forests across Canadian ecozones 评估未来气候趋势及其对加拿大生态区管理森林的影响

IF 2.2 3区农林科学

Canadian Journal of Forest Research Pub Date : 2023-09-01 DOI: 10.1139/cjfr-2023-0058

Amy R Wotherspoon, Alexis Achim, N. Coops

{"title":"Assessing future climate trends and implications for managed forests across Canadian ecozones","authors":"Amy R Wotherspoon, Alexis Achim, N. Coops","doi":"10.1139/cjfr-2023-0058","DOIUrl":"https://doi.org/10.1139/cjfr-2023-0058","url":null,"abstract":"Climate change interacts with ecological processes leading to changes in tree and forest growth rate, biome shifts and species composition, all of which are influenced by disturbances. This study explores future overarching climate trends of eight of Canada’s ecozones containing managed forests. For the 2071 to 2100 period, climate projections indicate a warming trend of up to an additional 5.5°C and an overall increase in annual precipitation by the end of the century. Future trends suggest marked contrast between coastal and interior forests and polarization between western and eastern forests. Warmer temperatures, accumulating degree-days above 5°C and frost-free days suggest longer and drier growing seasons and greater risk of drought particularly in moisture-limited areas such as montane cordillera, taiga shield and boreal shield ecozones. Warmer temperatures and rising precipitation combined with less precipitation falling as snow suggest shorter and wetter future winters. This indicates greater risk of rain-on-snow and freeze-thaw events, flooding and landslides, particularly in coastal ecozones. We discuss how these projections are likely to result in shifts in dominant species and abundance which, when coupled with the cumulative effects of future disturbances, is likely to alter future forest dynamics and impact harvestable wood volumes for Canada’s forestry industry.","PeriodicalId":9483,"journal":{"name":"Canadian Journal of Forest Research","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43510588","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

A bibliometric review of stakeholders' participation in sustainable forest management 利益相关者参与可持续森林管理的文献计量分析

IF 2.2 3区农林科学

Canadian Journal of Forest Research Pub Date : 2023-08-28 DOI: 10.1139/cjfr-2022-0329

Irene Ciccarino, M. E. Fernandes

{"title":"A bibliometric review of stakeholders' participation in sustainable forest management","authors":"Irene Ciccarino, M. E. Fernandes","doi":"10.1139/cjfr-2022-0329","DOIUrl":"https://doi.org/10.1139/cjfr-2022-0329","url":null,"abstract":"Although stakeholders' participation in forest management helps overcome problems and conflicts that prevent sustainable solutions, different approaches and nomenclature for similar contents in the literature hinder theoretical progress on the topic. This study organises existing information through a bibliometric analysis of scientific papers from the last 30 years (1991-2021) on sustainable forest management, focusing on the stakeholders' participation. Results demonstrate that stakeholders' participation in sustainable forest management gained relevance from 2017 onwards. Case studies are predominant (66%), and six major trends were identified. The first emphasises a systemic approach to participation. The second updates the community management discussion. The third studies historical problems related to the use of resources, rights, and services. The fourth focuses on regional assessments and studies. The fifth concerns assessment, decision-making, and planning, including issues related to certifications and policies. The sixth discusses innovation related to adaptation, climate change, equity, and resilience. The studies included in this last classification are problem-solving oriented and seek new forest management. Although important, the role of innovation in stakeholders' participation in sustainable forest management is overlooked, which constitutes an avenue for future research.","PeriodicalId":9483,"journal":{"name":"Canadian Journal of Forest Research","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49119222","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

Determining ages of conifer trees with resistance microdrilling 用阻力微钻孔法测定针叶树的树龄

IF 2.2 3区农林科学

Canadian Journal of Forest Research Pub Date : 2023-08-28 DOI: 10.1139/cjfr-2023-0077

Pengfei Xu, Houjiang Zhang, Zhe Xin, Fenglu Liu, Song Haiou, Jiangyu Yuan

引用次数: 0

Susceptibility of winter cut red pine (P. resinosa) stumps to Heterobasidion root disease (HRD) infection 冬切赤松（P.resinosa）树桩对异担子菌根病（HRD）感染的易感性

IF 2.2 3区农林科学

Canadian Journal of Forest Research Pub Date : 2023-08-24 DOI: 10.1139/cjfr-2023-0141

Jed Meunier, Kyoko Scanlon, Adam Wallace, L. Williams

引用次数: 0

Wood density and leaf traits independently relate to growth rate of naturally regenerated tree species in Araucaria angustifolia plantations in the Atlantic Forest, Argentina 在阿根廷大西洋森林中，栓皮栎(Araucaria angustifolia)人工林的木材密度和叶片性状与自然再生树种的生长速率有独立的关系

IF 2.2 3区农林科学

Canadian Journal of Forest Research Pub Date : 2023-08-24 DOI: 10.1139/cjfr-2022-0333

Micaela Medina, Magalí Pérez Flores, L. J. Ritter, J. F. Goya, Paula I. Campanello, M. Arturi

{"title":"Wood density and leaf traits independently relate to growth rate of naturally regenerated tree species in Araucaria angustifolia plantations in the Atlantic Forest, Argentina","authors":"Micaela Medina, Magalí Pérez Flores, L. J. Ritter, J. F. Goya, Paula I. Campanello, M. Arturi","doi":"10.1139/cjfr-2022-0333","DOIUrl":"https://doi.org/10.1139/cjfr-2022-0333","url":null,"abstract":"Tree plantations can facilitate the establishment of native trees, thus providing opportunities for the ecological restoration or rehabilitation of degraded forest lands. Stand variables can influence the establishment of native tree species, but few studies have been carried out to determine how sapling growth response to stand variables varies among functionally different species. We evaluated the effect of stand age, stand basal area, tree density, and time since last logging on stem diameter growth rates, as well as the dependence of such effect on whole plant, stem, and leaf functional traits. We measured the stem diameter increment on 280 individuals of 22 species in permanent plots for a period of 2 years in araucaria ( Araucaria angustifolia (Bertol.) Kuntze) plantations in the Atlantic Forest, NE Argentina. Increasing all-species basal area and plantation age negatively affected the growth rates, and such effect tended to be higher in species with low wood density. Two functional axes independently explained growth rate differences between species in growth rate. Growth rates increase with decreasing wood density, increasing leaf phosphorus and potassium content, and decreasing specific leaf area. Among species that are similar in the traits associated with the first functional axis, plant growth increases with increasing leaf nitrogen content.","PeriodicalId":9483,"journal":{"name":"Canadian Journal of Forest Research","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2023-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47538962","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

Low-impact line construction retains and speeds recovery of trees on seismic lines in forested peatlands 低影响线路建设保留并加快了泥炭地森林地震线上树木的恢复

IF 2.2 3区农林科学

Canadian Journal of Forest Research Pub Date : 2023-08-22 DOI: 10.1139/cjfr-2022-0250

Angelo T. Filicetti, Jesse Tigner, S. Nielsen, Katherine Wolfenden, Murdoch Taylor, P. Bentham

{"title":"Low-impact line construction retains and speeds recovery of trees on seismic lines in forested peatlands","authors":"Angelo T. Filicetti, Jesse Tigner, S. Nielsen, Katherine Wolfenden, Murdoch Taylor, P. Bentham","doi":"10.1139/cjfr-2022-0250","DOIUrl":"https://doi.org/10.1139/cjfr-2022-0250","url":null,"abstract":"Seismic lines are linear features created by the oil and gas industry for energy exploration. Though individually narrow, collectively seismic lines are a pervasive management challenge, resulting in changes to biogeochemical cycles, plant and animal abundance and behaviour, predator-prey relationships, and forest successional trajectories. These impacts arise from historical construction methods that used bulldozers to remove vegetation and substrate leaving lines as persistent openings in a state of arrested succession. In the mid-1990s, “low-impact seismic” (LIS) line construction began, using mulchers to remove vegetation aboveground to minimize impacts and hasten reforestation. Here, we evaluated the effectiveness of LIS in retention, recruitment, and growth of seedlings in forested peatlands in northeast British Columbia. Retained and recruited trees on LIS lines were found at 69% and 64% of sites, had mean densities of 3,400 and 6,000 stems/ha, and mean heights of 42 and 11 cm, respectively. These LIS lines appeared to recover along expected trajectories toward tree cover, thereby mitigating challenges typical of older seismic exploration. Our results suggest it is feasible to further fast-forward line recovery by ensuring mulcher drums are kept as high as possible to increase the number and height of trees through the mulching process.","PeriodicalId":9483,"journal":{"name":"Canadian Journal of Forest Research","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47966516","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

Carbon and biomass models for five Sierra Nevada mixed conifer species 内华达山脉五种混合针叶树的碳和生物量模型

IF 2.2 3区农林科学

Canadian Journal of Forest Research Pub Date : 2023-08-22 DOI: 10.1139/cjfr-2023-0133

Dryw A. Jones, K. O’Hara

引用次数: 0

Seed coatings containing capsaicin reduce seed removal on temperate woody species 含有辣椒素的种皮可减少温带木本物种的种子脱粒

IF 2.2 3区农林科学

Canadian Journal of Forest Research Pub Date : 2023-08-17 DOI: 10.1139/cjfr-2023-0109

Francesca Lanni, B. Connolly, John L. Orrock, P. Guiden

引用次数: 0