Acta Silvae et Ligni最新文献_第5页

Značilnosti zaraščanja na opuščenih kmetijskih zemljiščih v Halozah Haloze废弃农田的过度生长特征

IF 0.6

Acta Silvae et Ligni Pub Date : 2019-01-01 DOI: 10.20315/asetl.119.3

M. Cojzer, Jurij Diaci, R. Brus

{"title":"Značilnosti zaraščanja na opuščenih kmetijskih zemljiščih v Halozah","authors":"M. Cojzer, Jurij Diaci, R. Brus","doi":"10.20315/asetl.119.3","DOIUrl":"https://doi.org/10.20315/asetl.119.3","url":null,"abstract":"The aim of the research was to study the characteristics and pathways of the successional development of shrubs and tree species on abandoned agricultural land in the Haloze region. Forests and abandoned lands have been increasing in this region for several decades. Thus, we studied the trends of this increase. We compared the species composition on abandoned land with that of forest in the young development phase. We also examined succession strategies on abandoned land. The forest area in the Haloze region increased by 7.8 % between 1985 and 2015. On abandoned agricultural land, succession begins with shrub species and continues with an increasing number of tree species along with an augmentation in tree density. The successional process proceeds through the Cornus sanguinea - Cornus sanguinea - Carpinus betulus stages. In the young development phases of the forest, tree species predominate from the beginning of succession, the density of individuals decreases during succession, and the number of species does not change significantly. The secondary succession pathway on abandoned land progresses through various stages from shrubs to climax vegetation. The final vegetation stage in both cases is beech forest.","PeriodicalId":7188,"journal":{"name":"Acta Silvae et Ligni","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68290733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Vsebnost ekstraktivov v skorji in lesu robinije (Robinia pseudoacacia L.) 黑莓（Robinia pseudoacia L.）树皮和木材中提取物的含量

IF 0.6

Acta Silvae et Ligni Pub Date : 2019-01-01 DOI: 10.20315/asetl.119.2

Viljem Vek, B. Vivod, Ida Poljanšek, P. Oven

引用次数: 4

Anatomske, kemijske in sorpcijske lastnosti beljave in jedrovine rdečega bora 红松树皮和果核的解剖、化学和吸附特性

IF 0.6

Acta Silvae et Ligni Pub Date : 2019-01-01 DOI: 10.20315/asetl.119.4

Maks Merela, Vanja Turičnik, Viljem Vek, P. Oven

{"title":"Anatomske, kemijske in sorpcijske lastnosti beljave in jedrovine rdečega bora","authors":"Maks Merela, Vanja Turičnik, Viljem Vek, P. Oven","doi":"10.20315/asetl.119.4","DOIUrl":"https://doi.org/10.20315/asetl.119.4","url":null,"abstract":"In the case of Scots pine (Pinus sylvestris L.), anatomical differences between the sapwood and heartwood were researched, the content of extractives in the sapwood and heartwood defined, hygroscopicity of sapwood and heartwood studied, so as the relationship between the content of extractives and sorption properties. Research was carried out on 6 test trees. Anatomical investigations were performed using the classic light-field microscopy. Investigation of samples for determination of dimensional stability and sorption properties was held by conditioning in the glass-air condition chambers. Samples for chemical analysis were extracted with cyclohexane and a mixture of acetone and water, and the proportion of total phenols was determined by UV-Vis spectrophotometry. The differences between the sapwood and heartwood were in the resin canals, in the lumens of axial tracheids along the rays as well as differences in parenchymal cells and bordered pits. The content of extractives in the heartwood was higher than in the sapwood. Investigations of the sapwood and heartwood did not show statistically significant differences in the density in the absolutely dry state, at the point of saturation of cell walls, in the volume shrinkage, and not in the coefficient of swelling in the radial direction. We found differences between the sapwood and heartwood transverse anisotropy, differential swell in the tangential direction, in the coefficient of swelling in the radial direction and the sorption quotient. These differences can be attributed to mutual effect of the anatomical and chemical characteristics of both types of wood and when interpreting indicators of dimensional stability, the effect of the geometry of incremental layers should be taken into account.","PeriodicalId":7188,"journal":{"name":"Acta Silvae et Ligni","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68291082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Seasonal radial growth of black pine (Pinus nigra Arnold) from Bosnia and Herzegovina, monitored by the pinning method and manual band dendrometers 波斯尼亚和黑塞哥维那黑松(Pinus nigra Arnold)的季节性径向生长，采用钉钉法和手工带式树木密度计进行监测

IF 0.6

Acta Silvae et Ligni Pub Date : 2019-01-01 DOI: 10.20315/asetl.119.1

S. Poljanšek, J. Jevšenak, J. Gričar, T. Levanič

{"title":"Seasonal radial growth of black pine (Pinus nigra Arnold) from Bosnia and Herzegovina, monitored by the pinning method and manual band dendrometers","authors":"S. Poljanšek, J. Jevšenak, J. Gričar, T. Levanič","doi":"10.20315/asetl.119.1","DOIUrl":"https://doi.org/10.20315/asetl.119.1","url":null,"abstract":"Despite numerous dendroclimatological investigations into different tree species from Bosnia and Herzegovina, information is lacking on intra-annual wood formation patterns, which would help us to interpret the climate signal in tree rings better. Using the pinning method and manual band dendrometers, we investigated the seasonal dynamics of radial growth of black pine (Pinus nigra Arnold) trees in two successive growing seasons: 2011 and 2012. The up to 60-year-old trees grew in a stand at the base of a hill in the western, mountainous part of the Balkan Peninsula. The seasonal dynamics of wood formation and final number of cells differed between the studied years. Wood formation started in both years in early to mid-March. Differences were noticed in the wood production culmination; in 2011 it occurred at the end of May and beginning of June in 2012 and 2011, respectively. Xylem growth finished in 2012 in the middle of August and in 2011 in the middle of September. Based on the first derivative of the Gompertz function calculated rate of xylem growth was lowest in 2011. The dendrometers recorded a slow increment rate in spring, higher in summer and a decreasing rate again in the late summer in both growing seasons. In comparison with pinning, dendrometers showed a delay in the start of radial growth of up to 20 days in 2012. Additionally, dendrometers showed an increase in stem girth after the end of both growing seasons, when wood formation was already completed. Deviations between the two methods could be ascribed to the influence of water storage dynamics in the main stem and numerous structural processes in bark tissue, which are captured in dendrometer data. The influence of weather conditions on xylem phenology is also indicated by differences between the two studied years, although it is difficult to identify the influence of particular short-term weather events.","PeriodicalId":7188,"journal":{"name":"Acta Silvae et Ligni","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68291129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Vpliv suše na drobne korenine dreves in ektomikorizo v gozdnih ekosistemih 干旱对森林生态系统中小树根和外分枝杆菌病的影响

IF 0.6

Acta Silvae et Ligni Pub Date : 2019-01-01 DOI: 10.20315/asetl.120.1

Tanja Mrak, Hojka Kraigher

引用次数: 0

Razvoj gozdnih sestojev na nekdanjih novinah v Koprivni 在Koprivna以前的新闻上发展林分

IF 0.6

Acta Silvae et Ligni Pub Date : 2019-01-01 DOI: 10.20315/ASETL.120.3

Janez Golob, Milan Golob, David Hladnik

引用次数: 1

Škodljivi organizmi in škodljivi dejavniki na sadikah gozdnega drevja v obdobju 1997-2018 1997-2018年期间林木幼苗的有害生物和有害因素

IF 0.6

Acta Silvae et Ligni Pub Date : 2019-01-01 DOI: 10.20315/asetl.120.4

Peter Smolnikar, Barbara Piškur, Nikica Ogris

引用次数: 0