Baltic Forestry最新文献_第2页

The Rustic Bunting Emberiza rustica abundance in the Kostomuksha Nature Reserve and Kalevala National Park (NW Russia) during the years 2015–2021 2015年至2021年，Kostomuksha自然保护区和Kalevala国家公园（俄罗斯西北部）的Rustic Bunting Emberiza rustica丰度

IF 0.8 4区农林科学

Baltic Forestry Pub Date : 2023-07-06 DOI: 10.46490/bf632

S. Simonov, M. Matantseva, Yuri Krasovsky, Irina Gaydysh

{"title":"The Rustic Bunting Emberiza rustica abundance in the Kostomuksha Nature Reserve and Kalevala National Park (NW Russia) during the years 2015–2021","authors":"S. Simonov, M. Matantseva, Yuri Krasovsky, Irina Gaydysh","doi":"10.46490/bf632","DOIUrl":"https://doi.org/10.46490/bf632","url":null,"abstract":"In the late 20th–early 21st centuries, the Rustic Bunting Emberiza rustica population declined worldwide, including Karelia, NW Russia, the northern periphery of its breeding range. At the onset of the 21st century the Rustic Bunting disappeared from the southern parts of Karelia and turned from common to rare species in its northern parts. However, surveys carried out in 2015–2021 in the Kostomuksha Nature Reserve and Kalevala National Park – large neighbouring protected areas in NW Karelia – revealed a quite steady, although relatively low, breeding densities of the species (2.9–5.6 ind./km2). Such stable parameters of the abundance make this species common in the area in question. Furthermore, the species occurrence along survey routes seems to be slightly rising over the said time period, giving us hopes for a recovery of Rustic Bunting numbers, at least in protected areas containing extensive pristine boreal forests with habitats favourable for the species.\u0000Keywords: Rustic Bunting, Emberiza rustica, abundance, population dynamics, northern taiga, pristine forests, red-listed species, nature protection ","PeriodicalId":55404,"journal":{"name":"Baltic Forestry","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46187199","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: 0

α-Diversity of plant communities, forest birds and wood-decaying fungi in urban parks of a metropolis α-城市公园植物群落、森林鸟类和腐木真菌的多样性

IF 0.8 4区农林科学

Baltic Forestry Pub Date : 2023-06-28 DOI: 10.46490/bf690

O. Blinkova, T. Shupova, Liudmyla Raichul

引用次数: 0

Historical charcoal-burning mounds in the Engure area, Latvia, and their significance for the history of forest exploitation 拉脱维亚Engure地区历史上的烧炭土堆及其对森林开发史的意义

IF 0.8 4区农林科学

Baltic Forestry Pub Date : 2023-06-14 DOI: 10.46490/bf616

M. Zunde, Elīna Guščika, Muntis Auns, V. Bērziņš

{"title":"Historical charcoal-burning mounds in the Engure area, Latvia, and their significance for the history of forest exploitation","authors":"M. Zunde, Elīna Guščika, Muntis Auns, V. Bērziņš","doi":"10.46490/bf616","DOIUrl":"https://doi.org/10.46490/bf616","url":null,"abstract":"The application of airborne laser scanning (LiDAR) has led to the discovery of numerous man-made mounds encircled by pits in the forests near Engure, north-western Latvia. Field survey revealed these to be historical features remaining from charcoal-burning in mound kilns. Archaeological excavation was undertaken at one of the features, along with analysis of recovered wood charcoal, dendrochronological and radiocarbon (14C) dating and archival research into documents relating to historical charcoal production in the area. All of the analysed charcoal samples are from Scots pine (Pinus sylvestris L.), the dominant tree species in this area.\u0000It is concluded that the large-scale charcoal production served the needs of the ironworks operating at Engure in the 17th–18th century. The study of the charcoal-burning mounds has permitted estimation of the source area and volume of the wood supplied for charcoal production, and the period during which it was undertaken. Wood harvesting on such a scale had a significant impact on the surrounding forests and also had some effect on subsequent forest growth in the area. These findings demonstrate that features of this kind deserve to be regarded as archaeological remains of considerable research potential.\u0000Keywords: Duchy of Courland and Semigallia, forest history, Scots pine, charcoal-burning mounds, charcoal kilns, wood charcoal","PeriodicalId":55404,"journal":{"name":"Baltic Forestry","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48552190","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: 0

The influence of forest tree species composition on the forest height predicted from airborne laser scanning data – A case study in Latvia 森林树种组成对机载激光扫描数据预测的森林高度的影响——以拉脱维亚为例

IF 0.8 4区农林科学

Baltic Forestry Pub Date : 2023-05-15 DOI: 10.46490/bf663

J. Ivanovs, A. Lazdiņš, Mait Lang

{"title":"The influence of forest tree species composition on the forest height predicted from airborne laser scanning data – A case study in Latvia","authors":"J. Ivanovs, A. Lazdiņš, Mait Lang","doi":"10.46490/bf663","DOIUrl":"https://doi.org/10.46490/bf663","url":null,"abstract":"Airborne laser scanning (ALS) is used to predict different forest inventory parameters; however, the ALS point cloud properties depend on various parameters such as the type of ALS scanner employed, flight altitude and scanning angle, forest stand structure, forest tree species composition, vegetation season, etc. This study used national coverage high-resolution ALS data with minimum point density of 4 points per square meter in combination with field data from the National Forest Inventory (NFI) to build forest stand height models for forest stands dominated by 6 most common tree species in Latvian mixed forest stands, viz. Pinus sylvestris L., Betula pendula Roth, Picea abies (L.) Karst., Populus tremula L., Alnus incana (L.) Moench and Alnus glutinosa (L.) Gaertn. for the various ALS scanners employed and at different growing seasons. The selected NFI plots are divided into modelling and validation datasets in a ratio of 3 : 1. The results show that for a universal forest stand height model, the RMSE value is 1.91 m and the MAE is 1.41 m. For the forest stand height models, which are stratified by scanner, individual tree species and seasons, the RMSE value is within the limits of 1.4 m for forest stands dominated by Scots pine in leaf-on canopy condition to 3.8 m for birch in leaf-off canopy condition.\u0000Key words: forest inventory, airborne laser scanning, phenology, large scale forest mapping ","PeriodicalId":55404,"journal":{"name":"Baltic Forestry","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49414892","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

Determination of optimal plant growth regulators for breaking seed dormancy and micropropagation of Sorbus aucuparia L. 花楸种子破休眠和微繁殖最佳植物生长调节剂的确定。

IF 0.8 4区农林科学

Baltic Forestry Pub Date : 2023-04-03 DOI: 10.46490/bf679

D. Dinçer

{"title":"Determination of optimal plant growth regulators for breaking seed dormancy and micropropagation of Sorbus aucuparia L.","authors":"D. Dinçer","doi":"10.46490/bf679","DOIUrl":"https://doi.org/10.46490/bf679","url":null,"abstract":"Sorbus aucuparia L. is an important forest tree used in the reforestation of high-altitude mountainous areas, which carries significant pharmaceutical, industrial, ornamental, food, and ecological properties. However, the seed propagation and micropropagation of mature trees of S. aucuparia L., presents various difficulties which are integral aspects for the re-propagation and breeding of novel cultivars. In this study, we isolated the mature embryo-containing seeds of selected varieties of S. aucuparia L. from their seed coat and used them directly as explants in vitro to investigate and determine the optimal dose of cytokinin in breaking seed dormancy and micropropagation. 3 mg/L of benzyl adenine (BA) in addition to different concentrations and combinations of kinetin (0.5, 1, and 2 mg/L), indole-3-butyric acid (IBA) (0, 1, 0.5, and 1 mg/L), and 1-naphthalene acetic acid (NAA) (0, 1, 0.5, and 1 mg/L) were applied within a Murashige and Skoog (1962) (MS) medium at germination inhibition, shoot elongation, and shoot proliferation. In the MS mediums containing BA and kinetin, germination was achieved at the end of 1 week, and shoot proliferation was achieved at the end of 3 weeks. The most successful germination (96%), tallest shoot length (mean 5.1 cm), most shoot proliferation (mean 7.2 pieces), and number of nodes (mean 9.7 pieces) were identified in the MS containing 3 mg/L BA and 1 mg/L kinetin. Direct root formation with shoot elongation occurred in 25% of explants which germinated in the MS medium. For shoots propagated without roots in this medium, 62% of these achieved rooting at the highest dose of 1 mg/L indole-3-acetic acid (IAA) using a two-stage rooting method. Rooted shoots were successfully transferred to an ex vitro medium. These results provide a basis for breaking seed dormancy of selected Sorbus L. genotypes quicker, leading to more effective clonal production.\u0000Keywords: Sorbus aucuparia L., rowanberry, tissue culture, seed dormancy, micropropagation, in vitro ","PeriodicalId":55404,"journal":{"name":"Baltic Forestry","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46204634","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: 0

Potential of entomopathogens in biological control of the box-tree moth, Cydalima perspectalis (Lepidoptera: Crambidae) 昆虫病原生物防治木蛾的潜力(鳞翅目:蛾科)

IF 0.8 4区农林科学

Baltic Forestry Pub Date : 2023-03-31 DOI: 10.46490/bf603

M. Yaman

{"title":"Potential of entomopathogens in biological control of the box-tree moth, Cydalima perspectalis (Lepidoptera: Crambidae)","authors":"M. Yaman","doi":"10.46490/bf603","DOIUrl":"https://doi.org/10.46490/bf603","url":null,"abstract":"The box-tree moth pyralid, Cydalima perspectalis (Walker, 1859) (Lepidoptera: Crambidae) is the most important insect pest of box trees. Although C. perspectalis is an invasive species, studies on the isolation, characterization and insecticidal activity of entomopathogens that cause disease in the natural populations of box tree moth are scarce. There are few studies on the entomopathogenic organisms that cause diseases in the natural populations of C. perspectalis. C. perspectalis populations can be controlled with entomopathogens such as Bacillus thuringiensis, baculoviruses, fungi and nematodes. Bacillus thuringiensis and baculoviruses are the most promisining pathogens against C. perspectalis. Investigations to find the most effective entomopathogen against C. perspectalis should be continued. This also supports the need to find its specific entomopathogens causing diseases in its natural populations. The present paper compares data on potential entomopathogens found in the literature by discussing the current situation of the damage, distribution of C. perspectalis and the effects of the entomopathogens isolated from or tested against this pest insect.\u0000Keywords: biological control, entomopathogens, box tree, Cydalima perspectalis ","PeriodicalId":55404,"journal":{"name":"Baltic Forestry","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42456995","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

The effects of different rooting temperatures and phytohormones on the propagation of boxwood cuttings 不同生根温度和植物激素对黄杨扦插繁殖的影响

IF 0.8 4区农林科学

Baltic Forestry Pub Date : 2023-03-23 DOI: 10.46490/bf593

D. Güney, A. Bayraktar, F. Atar, S. Chavoshi, I. Turna

{"title":"The effects of different rooting temperatures and phytohormones on the propagation of boxwood cuttings","authors":"D. Güney, A. Bayraktar, F. Atar, S. Chavoshi, I. Turna","doi":"10.46490/bf593","DOIUrl":"https://doi.org/10.46490/bf593","url":null,"abstract":"Due to its wide range of utilization possibilities, boxwood has undergone severe damage, like all over the world, caused by the excessive forest use in Türkiye from the past to the present. Therefore, it is important to propagate it to ensure the continuity of the species. In this study, the effects of different rooting table temperatures and phytohormones on rooting were investigated in the propagation of Buxus sempervirens L. subsp. sempervirens by softwood cutting. First callus and root formation dates, rooting percentage, callus percentage, root length and the number of roots were determined on the cuttings. As a result, the highest rooting percentages were obtained as 100% in IBA 3,000, IBA 5,000, IAA 3,000, NAA 3,000 and NAA 5,000 ppm treatments in Greenhouse-1 medium and IBA 3,000 and IAA 3,000 ppm treatments in Greenhouse-2 medium. In terms of root length and the number of roots, the highest values were determined as 2.01 cm and 7.83, respectively, in IBA 3,000 ppm treatment in Greenhouse-2 medium. With the high success obtained, it has been concluded that the propagation of the species can be made by using softwood cutting and the genetic infrastructure of the species can be preserved and transferred to future generations.\u0000Keywords: Buxus sempervirens, ornamental plant, cutting propagation, auxin ","PeriodicalId":55404,"journal":{"name":"Baltic Forestry","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41918440","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: 0

Effects of radial growth rate on juvenile wood properties of Pinus sylvestris planted in Mongolia 径向生长速率对蒙古西洋松幼木特性的影响

IF 0.8 4区农林科学

Baltic Forestry Pub Date : 2023-03-23 DOI: 10.46490/bf649

B. Ganbaatar, F. Ishiguri, I. Nezu, J. Ohshima, S. Yokota, Bayasaa Tumenjargal, Gerelbaatar Sukhbaatar

{"title":"Effects of radial growth rate on juvenile wood properties of Pinus sylvestris planted in Mongolia","authors":"B. Ganbaatar, F. Ishiguri, I. Nezu, J. Ohshima, S. Yokota, Bayasaa Tumenjargal, Gerelbaatar Sukhbaatar","doi":"10.46490/bf649","DOIUrl":"https://doi.org/10.46490/bf649","url":null,"abstract":"The establishment of forest plantations in boreal zones in Mongolia is important for wood production as well as carbon dioxide fixation. The present study aims to elucidate the juvenile wood properties (basic density, modulus of elasticity [MOE], modulus of rupture [MOR], and compressive strength parallel to grain) of plantation-grown Pinus sylvestris to promote the establishment of plantations. In addition, the effect of the radial growth rate on wood properties was also evaluated using a linear mixed-effects model. In the juvenile wood phase, wood properties were increased from the pith to bark side based on the results of model selections. Up to the 20th annual ring from the pith, the estimated mean values of basic density, MOE, MOR, and compressive strength were 0.40 g/cm3, 5.35 GPa, 65.1 MPa, and 28.4 MPa, respectively. Variance component ratios of growth categories were low in wood properties, with the exception of basic density, suggesting that the radial growth rate did not affect wood properties in the juvenile wood phase in this species growing in Mongolia. Based on the results obtained in the present study, we have concluded that although basic density in the faster growth category yielded relatively lower values, appropriate radial growth promotion during the initial stage of growth in P. sylvestris trees planted in Mongolia exerted no negative impact on juvenile wood properties.\u0000Keywords: annual ring width, basic density, compressive strength, modulus of elasticity, modulus of rupture ","PeriodicalId":55404,"journal":{"name":"Baltic Forestry","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48350744","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: 0

Analyses of leaf morphological changes and expressed genes related to water shortage of Fagus orientalis populations in a drought gradient 干旱梯度条件下侧柏种群叶片形态变化及与缺水相关基因表达分析

IF 0.8 4区农林科学

Baltic Forestry Pub Date : 2023-01-24 DOI: 10.46490/bf205

Zohreh Saeedi, D. Azadfar, Masoud Tohidafar, K. Sagheb‐Talebi

{"title":"Analyses of leaf morphological changes and expressed genes related to water shortage of Fagus orientalis populations in a drought gradient","authors":"Zohreh Saeedi, D. Azadfar, Masoud Tohidafar, K. Sagheb‐Talebi","doi":"10.46490/bf205","DOIUrl":"https://doi.org/10.46490/bf205","url":null,"abstract":"Climate change models predict an increase in mean annual temperature, a decrease in precipitation and consequently a scarcity of water resources during the growing season for Iran, including the northern forests of the country. One of the consequences is increased water shortage stress during the summer season. Fagus orientalis Lipsky is one of the most important commercial broad leaf species in the Hyrcanian forests and its potential of phenotypic and genetic adaptation to the climate change is essentially vital. The present research was carried out along two precipitation gradients from very humid to semi-humid conditions on four beech populations. The results of the flexibility of the leaf morphological traits showed that the populations of dryer regions had smaller and more elongated leaves than other populations. Evaluation of the expression of seven candidate genes in response to water shortage showed that the expression of aldehyde dehydrogenase, ascorbate peroxidase, Dehydrin (DHN), early responsive to dehydration, late embryogenesis abundant and Cys/His-Type Zinc-Finger in the eastern population was higher than that in the western population, while a difference in elevation gradient was only observed in the expression of some genes. Therefore, the natural selection pressure in the past evolutionary periods in the westeast gradient seems to be higher than the elevation gradient and has led to greater resistance to drought. Principal component analysis revealed that aldehyde dehydrogenase genes (ALDH), early responsive to dehydration (ERD), late embryogenesis abundant (LEA) and DHN are the most effective genes responding to water shortage stress for Oriental beech in the Hyrcanian forests.\u0000Keywords: drought gradient, Fagus orientalis, gene expression, leaf morphology ","PeriodicalId":55404,"journal":{"name":"Baltic Forestry","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48402731","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: 0

Advancing height growth models for the improved forest reproductive material of the main tree species in Latvia 推进拉脱维亚主要树种改良森林繁殖材料的高度生长模型

IF 0.8 4区农林科学

Baltic Forestry Pub Date : 2023-01-19 DOI: 10.46490/bf682

P. Zeltiņš, G. Šņepsts, J. Donis, Raitis Rieksts-Riekstiņš, A. Kangur, Ā. Jansons

{"title":"Advancing height growth models for the improved forest reproductive material of the main tree species in Latvia","authors":"P. Zeltiņš, G. Šņepsts, J. Donis, Raitis Rieksts-Riekstiņš, A. Kangur, Ā. Jansons","doi":"10.46490/bf682","DOIUrl":"https://doi.org/10.46490/bf682","url":null,"abstract":"The breeding of economically important forest tree species in the Baltic Sea region has contributed notably to the availability of quality wood for bioeconomy. Accordingly, the altered stand dynamics of improved trees should be identified and incorporated in growth models to accurately reflect these gains. Such advanced models can be used for assessment of different alternatives, e.g. strategies for increased carbon sequestration.\u0000We tested and modified dynamic forms of the King-Prodan height growth function based on the remeasured National Forest Inventory plots in Latvia to predict the growth of improved Scots pine, Norway spruce and silver birch forest reproductive material (FRM) categories ‘qualified’ and ‘tested’ using height measurements from progenies of 371, 390, and 690 open-pollinated families, respectively. Both categories had steeper growth trajectories at young age compared to an unmodified function. Growth of category ‘tested’ for pine and birch exceeded that of category ‘qualified’ across the modelled age range, while trajectories mainly overlapped for spruce on lower site indices. The functions with FRM category-specific multipliers more accurately reflect the actual growth of improved stands, advancing planning of timely management activities like thinning. The single model with category-specific set of multipliers may be easy applicable in practice or incorporated in growth simulators without increased complexity for end-users. However, the predictions are limited to the sites with medium and high site indices, where improved planting stock is typically used.\u0000Keywords: GADA approach, dynamic modelling, tree breeding, FRM categories","PeriodicalId":55404,"journal":{"name":"Baltic Forestry","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44537872","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: 0