Dendrobiology最新文献

{"title":"Effect of land preparation methods on restoration success of degraded oak forest ecosystems","authors":"Mela Filothei, Ganatsas Petros","doi":"10.12657/denbio.089.006","DOIUrl":"https://doi.org/10.12657/denbio.089.006","url":null,"abstract":"Estimation of the success of ecosystem restoration through different methods is essential of planning restoration projects, especially nowadays when the world community has declared the target for an effective restoration of 25% of degraded ecosystems in the next years. In the present study, we intro­duce the results of the application of two land preparation methods – soil ripping and land terracing - on ecosystem restoration success twenty years after restoration actions. The study concerns two reforested areas with the species Quercus pubescens, a deciduous oak species. In both reforested areas an estimation of the ecological conditions was carried out as well as stand growth and volume data, based on the following field measurements: soil fertility data, vegetation analysis, tree morphological characteristics, and tree vol­umetric characteristics. The analysis of the results showed that the land preparation method “soil ripping”, greatly improved all the studied ecosystem parameters as well as oak stand characteristics, comparing to the “terracing” method. More specifically, it improved the physical and chemical properties of the soils, the coverage and the composition of flora species, and enhanced the existence of more woody species. It privi­leged the growth of Quercus pubescens trees contributing to a higher stand volume.","PeriodicalId":55182,"journal":{"name":"Dendrobiology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47522297","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}

{"title":"Screening for drought resistance among ornamental maples (Acer sp.). A field experiment in juvenile plants","authors":"A. Oravec, P. Ferus, Dominika Košútová, J. Konôpková","doi":"10.12657/denbio.089.004","DOIUrl":"https://doi.org/10.12657/denbio.089.004","url":null,"abstract":"Urban greenery is often affected by adverse environment (including inadequate water availabil-ity) of human agglomerations. Besides high aesthetic value, maples (Acer sp.) with elevated resistance to air/soil pollution, have become common components of ornamental plantations in Europe. Because of high theoretical (representativeness for species evaluation) and practical (planting age) relevancy, morphological and metabolic reactions of juvenile plants of eight maple species to one month long summer drought were studied in the experimental field to estimate the species drought resistance. In spite of marked growth differences, none from tested species showed a significant decrease in leaf relative water content indicating stress. However, in some of them activation of protective mechanisms was observed, what points to the past stress sensing. A. negundo with A. tataricum bet on transpiration area reduction (leaf shedding) and A. buergerianum, A. palmatum and A. saccharinum on osmotic adjustment (increased free proline concentration). Increase in stomatal index and/or reduction in specific leaf area, observed almost exclusively in species with continuous growth, had limited effect on the plant hydration status. Relative trunk growth was par-ticularly affected in the fast growing species. Taking into account the decisive protective mechanisms onset and trunk growth stability, species can be ordered in respect of drought resistance as follows: A. campestre, A. monspessulanum, A. platanoides, A. tataricum, A. negundo, A. saccharinum, A. palmatum and A. buergerianum.","PeriodicalId":55182,"journal":{"name":"Dendrobiology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44094032","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}

{"title":"Genetic resources of the oldest trees of Pinus sylvestris L. from the last natural forest in Europe","authors":"A. Wojnicka-Półtorak, K. Celiński, E. Chudzińska","doi":"10.12657/denbio.089.003","DOIUrl":"https://doi.org/10.12657/denbio.089.003","url":null,"abstract":"The last fragments of primeval forests in the European lowlands have survived in the Białowieża Forest (BF). A characteristic feature of its forest stands is a complex and multi-age structure. From a genetic perspective, old trees represent a genetic pool that is a product of the selection forces acting over centuries. Therefore, it is extremely important to make a genetic inventory of such old trees and preserve their genetic resources for future generations. The aims of this study were: 1) genotyping the oldest trees of Pinus sylvestris in the Sitki Reserve of the Białowieża Forest in Poland; and 2) characterisation of the genetic structure of this old Scots pine tree stand. In total, 98 old trees aged above 100 years were analysed using eight nuclear microsatellite markers. The first study on the genotyping of the oldest Scots pine trees in the BF, indicated that each of the trees has a unique genotype, so it can be unambiguously identified by a genetic profile. Overall, 85% of trees showed an individual heterozygosity of 0.5 or higher. We demonstrated, that eight polymorphic microsatellite loci of the nuclear genome are sufficient to create an individual genetic profile of each tree. Our results will provide necessary background information for the conservation of native genetic resources of Pinus sylvestris.","PeriodicalId":55182,"journal":{"name":"Dendrobiology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43201693","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}

{"title":"Species diversity patterns differ by life stages in a pine-oak mixed forest","authors":"Yuan-fa Li, S. Ye, Weiguo Bai, Gongqiao Zhang","doi":"10.12657/denbio.088.010","DOIUrl":"https://doi.org/10.12657/denbio.088.010","url":null,"abstract":"Natural forests comprise trees of different species and sizes, constituting a “biotic framework”. Although examinations of diversity patterns at various spatial scales are frequently conducted, life stages are rarely accounted for. Pine-oak mixedwood forest is widely distributed around the world and constitutes main forest type in the Nanpan River Basin in southwest China. We established a fixed plot with an area of 100 m × 100 m in an undisturbed forest stand and classified trees according to five life stages based on their diameter at breast height (DBH) and height. Then, we calculated eight traditional diversity indices for each life stage. We found that species richness (R), abundance (N), and three diversity indices first increased and then decreased with increasing life stage. As sampling area increased, R, the Shannon-Wiener index (H') and Simpson’s diversity index (D) first increased quickly, followed by a reduced rate of increase, whereas N showed a linear increase and three evenness indices showed gradual decreases. Global Moran’s I values for each diversity index were small, indicating weak spatial autocorrelation. Both R and N of shrubs and saplings decreased sharply with life stage, with only large trees comprising the later life stages. Our results indicate that species diversity patterns in pine-oak forests, particularly in early successional stages, differ among life stages. The changes contribute to the understanding and conservation of forest biodiversity.","PeriodicalId":55182,"journal":{"name":"Dendrobiology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45909071","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}

{"title":"Effect of seedling production method on the growth of Pinus sylvestris L. on reclaimed post-industrial sites in Poland","authors":"J. Socha, Stanisław Orzeł, W. Ochał, M. Pietrzykowski","doi":"10.12657/denbio.088.009","DOIUrl":"https://doi.org/10.12657/denbio.088.009","url":null,"abstract":"Selection of tree species and proper technology of afforestation of post-industrial sites play a crucial role in new ecosystem stability and success of the restoration. There is still current discussion about the effectiveness of different methods in the production of seedlings for extreme site conditions. This study aimed to analyze the effect of the seedling production method on the growth of 6-year-old Scots pine (Pinus sylvestris L.) trees planted on reclaimed post-industrial sites in southern Poland. We compared four methods of seedling production: bare root system, containerized without and with inoculation of ectomycorrhizal fungi Laccaria bicolor (Maire) P.D. Orton, and Hebeloma crustuliniforme (Bull.) Quél. The experiment was carried out independently on two reclaimed sites: a post-sand-mining site in Bukowno, and a heavy metal polluted site in Miasteczko Śląskie. The effect of the seedling production method on tree growth expressed by height, root collar diameter, above- and belowground biomass of different tree components was analyzed on 240 sampled trees using analysis of variance and general linear model. In addition, the effect of the seedling production method on the root-to-shoot ratio was investigated. Scots pine tree growth was significantly affected by the seedling production method on heavy metal polluted site. The lowest tree growth parameters were observed in trees planted with bare roots, whereas the largest values were in the case of trees planted from containerized seedlings inoculated with H. crustuliniforme. In contrast, on the post-sand-mining site, the treatment effect turned out to be insignificant. The effect on biomass allocation was observed in the case of both sites. Trees prepared with the bare root method differed in greater biomass allocation to the belowground from other treatment groups. The use of containerized seedlings or additionally inoculated with ectomycorrhizal fungi in heavy metal contaminated sites improves the growth of trees and, although it is more costly and labor-intensive compared to the production of seedlings with a bare root system, should be preferred. In the post-sand-mining area, no effect of the seedling production method on tree growth was observed, and the use of bare root seedlings will be equally effective and additionally less time and cost-consuming.","PeriodicalId":55182,"journal":{"name":"Dendrobiology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46793299","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}

{"title":"Coping with Central European climate – xylem adjustment in seven non-native conifer tree species","authors":"M. Klisz, J. Jevšenak, Y. Prokopuk, W. Gil, Vasyl Mohytych, R. Puchałka","doi":"10.12657/denbio.088.008","DOIUrl":"https://doi.org/10.12657/denbio.088.008","url":null,"abstract":"The introduction of tree species raises the question of whether they find suitable conditions in their secondary range and whether they can successfully adapt to the new conditions in the context of an unstable climate. Stem secondary growth of trees and the changes in xylem cell structure make it possible to trace the adaptation process to the new climate on an inter- and intra-seasonal scale. The objective of this study was to determine whether the seven non-native conifer species in Central Europe differ in climate sensitivity and to what extent late frost and spring-summer drought can influence xylem changes. In our study, we investigated the growth pattern and xylem cell structure modifications of seven introduced conifer species Pseudotsuga menziesii, Pinus strobus, Tsuga canadensis, Abies grandis, Pinus banksiana, Pinus rigida, Pinus nigra, growing under uniform conditions in Poland. To determine species-specific temporal variations in climate sensitivity, we used stationary and non-stationary correlations of ring width with daily climate variables: mean, minimum, and maximum temperatures, precipitation sum, and SPEI, supported by a pointer-year analysis. Changes in xylem structure (frost rings and intra-annual density fluctuations) were analyzed using light and fluorescence microscopy. Warming of the winter-spring period benefits both southern European and North American introduced conifers, as reflected in the extended responsiveness period. However, as the growing season warms and the risk of late frosts increases, the potential for acclimatization of non-native species decreases, especially with respect to their juvenile growth phase. Negative precipitation and evapotranspiration balance at spring-summer period can lead to reduced growth and anomalies in earlywood xylem structure, commonly referred to as intra annual density fluctuations. P. strobus, the species that loses both frost-induced cambium damage and drought-induced xylem anomalies in summer is the fastest growing non-native species, along with P. menziesii. Although the results presented here show the potential and the limitations in the acclimatization of coniferous species, the obvious limitations related to local environmental conditions and the different ages of the trees make us cautious in generalizing the conclusions. Therefore, we call for the creation of a pan-European dendro-network of sites of non-native coniferous species.","PeriodicalId":55182,"journal":{"name":"Dendrobiology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47043212","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}

{"title":"Drivers of site productivity for oak in Poland","authors":"Hoang Duong Xo Viet, Luiza Tymińska-Czabańska, J. Socha","doi":"10.12657/denbio.088.006","DOIUrl":"https://doi.org/10.12657/denbio.088.006","url":null,"abstract":"The site index (SI) is the most commonly used and representative measure of the phytocentric approach; it evaluates the site productivity based on the stand height and age. In the case of mixed stands with complex structures, phytocentric methods are very limited, while in non-forest areas, they are not ap­plicable. In situations where the applicability of phytocentric methods is limited, the site productivity is de­termined by geocentric methods. Geocentric methods allow direct modelling of site productivity, expressed by SI predicted from various environmental variables. The aim of this study was to develop a geocentric model for oak. Site productivity expressed by SI was described by the environmental variables and stand characteristics. To develop the SI model, we used the data from 2490 NFI plots with dominant oak species (Quercus sessilis and Quercus robur). A generalized additive model was used in modelling site productivity. We documented a significant relationship between SI and the environmental variables, age of stands and stand density. Furthermore, the site productivity for oak is shaped by climate factors, soil type, geology, and altitude. The model developed based on the geocentric method, explained 55.1% of the variation of SI","PeriodicalId":55182,"journal":{"name":"Dendrobiology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46802544","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}

{"title":"Influence of drought stress and N addition on the gas exchange, biochemical and growth traits in Quercus ithaburensis","authors":"E. Bayar","doi":"10.12657/denbio.088.007","DOIUrl":"https://doi.org/10.12657/denbio.088.007","url":null,"abstract":"Forest tree species are likely to be affected by drought due to global climate change. Drought and nitrogen (N) affect plant growth. Therefore, we should understand the mechanisms underlying the N availability and species response to drought for plant development. This paper had two objectives. First, it determined the effects of N addition on water potential, gas exchange parameters, soluble sugar and photosynthetic pigment content, leaf N concentration, and growth parameters under drought stress and well-watered conditions. Second, it searched the drought response of Quercus ithaburensis Decne. subsp. macrolepis (Kotschy) Hedge&Yaltırık seedlings under N conditions with drought stress. In a greenhouse, one-year-old seedlings were exposed to two drought stress and nitrogen addition and three drought cycles. Drought stress significantly reduced stem water potential, relative water content, net photosynthetic rate, stomatal conductance, transpiration rate, leaf area, root collar diameter, seedling height, shoot and root dry weight. On the other hand, it increased water use efficiency and soluble sugar content. N addition is effective on soluble sugar content and photosynthetic pigment content, and promoted leaf N concentra­tions. Nitrogen addition under well-watered conditions stimulated the growth of Q. ithaburensis seedlings. Drought stress changed the physiological response of Q. ithaburensis seedlings (decreased water potential, net photosynthetic rate, stomatal conductance, and transpiration rate) in the short term, although nitrogen addition under drought stress has not changed the decreasing trend overall.","PeriodicalId":55182,"journal":{"name":"Dendrobiology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44936989","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}

{"title":"Molecular phylogeny of Populus (Salicaceae, Salicales) with focus on inter- and intrasectional relationships","authors":"S. Du, Xiaoyan Hu, Yujie Yang, Zhaoshan Wang","doi":"10.12657/denbio.088.004","DOIUrl":"https://doi.org/10.12657/denbio.088.004","url":null,"abstract":"The relationships among sections and species within each section in the genus Populus have attracted much attention from taxonomists and biologists. In this paper, we provide an overview of the current state of Populus phylogenetics and discuss the origin of some hybrid species. There has been some controversy surrounding the origin of the genus Populus in North America and subsequent dispersal and differentiation in other parts of the world. We present the most plausible scenario based on phylogenetic analysis and fossil records. Sections Abaso, Turanga and Populus are all monophyletic, whereas sections Aigeiros, Tacamahaca and Leucoidesshow some degree of polyphyly. Sections Abaso and Turanga are relatively primitive lineages in Populus. With the accumulation of sequencing data and new analytical tools, it will be possible to investigate more complicated issues concerning genus Populus within a phylogenetic framework.","PeriodicalId":55182,"journal":{"name":"Dendrobiology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49172259","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}

{"title":"Effects of tree diversity and stand structure on above-ground carbon storage in evergreen broad-leaved and deciduous forests in Southeast Vietnam","authors":"N. T. Tuan, Diego I. Rodríguez-Hernández, Vu Cong Tuan, N. Quy, Maxwell C. Obiakara, Joshua Hufton","doi":"10.12657/denbio.088.003","DOIUrl":"https://doi.org/10.12657/denbio.088.003","url":null,"abstract":"Understanding the relationship between tree species diversity and above-ground carbon (AGC) storage in tropical forests is essential for a sustainable flow of ecosystem goods and services. Although tropical forests of Vietnam are of particular interest due to their high biodiversity and carbon density, few studies have evaluated the relative importance of species composition, tree species diversity and forest structure on AGC storage by forest vegetation type. In this study, we tested for the influence of taxonomic diversity, forest structure and species composition on AGC storage in evergreen broad-leaved and deciduous forests of Southeast Vietnam. Data was collected within 137 rectangular plots (25 m × 20 m), randomly selected across a deciduous forest (DF) and four evergreen broad-leaved forest (EB) categories, with different stand­ing volumes levels: very poor (EBG), poor (EBP), medium (EBM) and rich (EBR). In total, we identified 3687 individuals from 110 tree species belonging to 46 families in 6.85 hectares of sampled area. AGC stor­age significantly differed among forest categories, ranging from 14.81 Mg ha−1 in EBG to 146.74 Mg ha−1 in EBR. There was higher AGC in the medium diameter class (20-40 cm), except for EBR where there was higher AGC within individuals of 40-60 cm in diameter. Taxonomic diversity was weakly correlated with AGC while stand structure (stem density and maximum diameter) were strongly correlated. Our results suggest that maintaining the abundance distributions of remnant tree species, particularly that of large trees, is one important method to enhance AGC storage in the tropical ecosytems of southern Vietnam.","PeriodicalId":55182,"journal":{"name":"Dendrobiology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43310337","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}