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Little vegetation change during two decades in a dry grassland complex in the Biosphere Reserve Schorfheide-Chorin (NE Germany). 德国东北部Schorfheide-Chorin生物圈保护区干草地复合体20年间植被变化不大。
IF 1.2 4区 生物学 Q2 Environmental Science Pub Date : 2016-01-01 DOI: 10.14471/2016.36.019
Elisbabeth Hüllbusch, L. Brandt, Paul Ende, Jürgen Dengler
In many regions of Central Europe, semi-natural grasslands have experienced severe vegetation changes, e.g. compositional change and overall species loss, because of land use changes, atmospheric nitrogen input and also climate change. Here we analysed the vegetation change in a dry grassland complex (Gabower Hänge) in the Biosphere Reserve Schorfheide-Chorin (NE Brandenburg, Germany), one of the driest regions of the country. We resampled four 10 m2 plots of each of four typical alliances (Festucion valesiacae, Koelerion glaucae, Armerion elongatae, Arrhenatherion elatioris) about 20 years after their original sampling with a recovery accuracy of approx. 10 m. The cover of vascular plants, bryophytes and lichens was recorded in both samplings. The overall compositional change was analysed with a detrended correpondence analysis (DCA). To interpret this change, we calculated unweighted mean Ellenberg indicator values for old and new plots. Furthermore we tested differences in constancy of individual species between old and new plots as well as differences in species richness, cover of herb and cryptogam layer, ecological indicator values and unweighted proportion of species groups (vascular plants, bryophytes, lichens), floristic status (native or not), life forms, CSR-strategy types and Red List species. The results of the ordination indicated no significant vegetation change, but revealed tendencies towards more nutrient-rich conditions. Ellenberg indicator values for nutrients and soil reaction were significantly correlated with the axes of the ordination. There were 28 species exclusively found in the new plots and 45 species of the old plots missing. While no species decreased significantly, there were seven species that increased significantly. Mean species richness was significantly increased in the new plots. There were no significant differences in mean Ellenberg indicator values. Proportions of vascular plants, neophytes, hemicryptophytes and CS-strategists decreased. We conclude that overall vegetation changes are small, indicating that the dry grassland complex at the Gabower Hänge is still in a good state and of high conservation value. This relative stability over time compared to the situation in many other dry grasslands throughout temperate Europe is likely attributable to low nitrogen deposition and the dryness of the local climate. However, the detected tendency towards more nutrient-rich conditions should be taken into account in future management. Manuscript received 14 April 2016, accepted 18 May 2016 Co-ordinating Editor: Balázs Deák 396
在中欧许多地区,由于土地利用变化、大气氮输入和气候变化,半自然草地经历了严重的植被变化,例如组成变化和总体物种损失。在这里,我们分析了德国最干旱地区之一的schorfhede - chorin生物圈保护区(勃兰登堡东北部)的干旱草地复群(Gabower Hänge)的植被变化。我们对4个典型群落(festion valesiacae, Koelerion glaucae, Armerion elongatae, Arrhenatherion elatioris)的4个10 m2的样地进行了重新采样,恢复精度约为20年。10 m。两次取样均记录了维管植物、苔藓植物和地衣的覆盖情况。用非趋势对应分析(DCA)分析了总体成分变化。为了解释这一变化,我们计算了新旧地块的未加权平均值Ellenberg指标值。此外,我们还分析了新旧样地间的物种多样性差异,以及物种丰富度、草本和隐苔层盖度、生态指标值、类群(维管植物、苔藓植物、地衣)未加权比例、区系状态(本地或非本地)、生命形式、csr策略类型和红色名录物种的差异。排序结果表明,植被变化不明显,但有向富营养化方向发展的趋势。养分和土壤反应的Ellenberg指标值与纵轴呈极显著相关。新样地特有物种28种,旧样地缺失45种。虽然没有物种显著减少,但有7种物种显著增加。新样地的平均物种丰富度显著增加。平均Ellenberg指标值无显著差异。维管植物、新生植物、半隐植物和cs -战略型植物的比例下降。总体植被变化较小,表明Gabower Hänge干草地复群仍处于良好状态,具有较高的保护价值。与整个温带欧洲许多其他干燥草原的情况相比,这种相对稳定的情况可能归因于低氮沉积和当地气候的干燥。但是,在今后的管理中应考虑到已发现的朝向更富营养条件的趋势。2016年4月14日收稿,2016年5月18日收稿
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引用次数: 12
Functional traits are more variable at the intra- than inter-population level: a study of four calcareous dry-grassland plant species 功能性状在种群内的变异大于种群间的变异——四种钙质干草地植物的研究
IF 1.2 4区 生物学 Q2 Environmental Science Pub Date : 2016-01-01 DOI: 10.14471/2016.36.018
Mélanie Harzé, G. Mahy, A. Monty
The majority of studies investigating plant functional traits have used species average trait values, and assumed that average values were sufficiently representative of each species considered. Although this approach has proven valuable in community ecology studies, plant functional traits can significantly vary at different scales, i.e. between but also within populations. The study of species functional trait variability can facilitate increasingly accurate studies in community ecology. Nevertheless, the current extent of within-site plant trait variability has been poorly addressed in the literature. Calcareous grasslands are ecosystems well-suited to study plant trait variation at small spatial scales. Many species are present on heterogeneous calcareous sites, with significant differences in hydric status due to variations in soil depth, soil moisture, aspect, and slope. This study assesses the extent of intra-population functional trait variability and tests the hypothesis that this variability can be explained by within-site environmental heterogeneity. Three functional traits (SLA-specific leaf area, LDMC-leaf dry matter content, and plant vegetative height) were assessed in three populations of four calcareous grassland species totalling 950 individuals. The heterogeneity in soil depth and potential direct incident radiation was also quantified and related to plant functional trait variability. The intra-population functional trait variability was compared to the inter-population variability of collected data and global inter-population variability data obtained from the worldwide TRY functional traits database. The results showed that SLA, LDMC, and plant height are characterized by considerable intra-population variation (SLA: 72–95%, LDMC: 78–100% and vegetative height: 70–94% of trait variability). The results also indicate higher plant height and larger SLA for individuals located in plots with deeper soils or lower potential direct incident radiation, on gentle slopes or north-facing slopes. Our findings additionally support the concept that higher plant height, higher SLA, and lower LDMC are related to higher availability of soil water. Individuals on shallow soils or in more exposed areas are better equipped to cope with environmental stress. Our results indicate plasticity or local adaptation in individuals to environmental heterogeneity. This study suggests that detailed analyses involving plant functional traits require measurements in situ from a large number of individuals, as the degree of individual response strongly depends on an individual’s location and its micro-environmental conditions. Neglecting intra-population trait variability may be critical, as intraspecific variation can be very high at the population scale, and is likely to be driven by local environmental heterogeneity. Manuscript received 26 November 2015, accepted 29 April 2016 Co-ordinating Editor: Thomas Becker 322
大多数植物功能性状的研究都使用物种平均性状值,并假设平均值足以代表所考虑的每个物种。虽然该方法在群落生态学研究中已被证明是有价值的,但植物的功能性状在不同尺度上(即群体间和群体内)存在显著差异。物种功能性状变异的研究有助于群落生态学研究的日益精确。然而,目前在文献中,植物性状变异的范围还没有得到很好的解决。钙质草地是一种适合研究小空间尺度植物性状变异的生态系统。许多物种存在于非均质钙质地点,由于土壤深度、土壤湿度、坡向和坡度的变化,它们的水分状态有显著差异。本研究评估了种群内功能性状变异的程度,并验证了这种变异可以用种群内环境异质性来解释的假设。对4个钙质草地物种3个种群共950个个体的3个功能性状(sla特异叶面积、ldmc叶片干物质含量和植物营养高度)进行了评价。土壤深度和潜在直接入射辐射的异质性也被量化,并与植物功能性状变异有关。将种群内功能性状变异与收集数据的种群间变异和全球TRY功能性状数据库的种群间变异数据进行比较。结果表明:SLA、LDMC和株高具有较大的群体内变异(SLA为72 ~ 95%,LDMC为78 ~ 100%,营养高度为70 ~ 94%)。结果还表明,位于土壤较深或潜在直接入射辐射较低、缓坡或朝北斜坡上的个体株高和SLA较高。我们的研究结果还支持了较高的植物高度、较高的SLA和较低的LDMC与较高的土壤水分有效性相关的概念。生活在浅层土壤或更暴露地区的个体更有能力应对环境压力。我们的研究结果表明,个体对环境异质性具有可塑性或局部适应性。该研究表明,由于个体的响应程度很大程度上取决于个体的位置和微环境条件,因此涉及植物功能性状的详细分析需要大量个体的原位测量。忽略种群内的性状变异可能是至关重要的,因为种内变异在种群尺度上可能非常高,并且可能是由局部环境异质性驱动的。2015年11月26日收稿,2016年4月29日收稿
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引用次数: 21
Dry grasslands of Central-Eastern and South-Eastern Europe shaped by environmental heterogeneity and human land use – Editorial to the 10th Dry Grassland Special Feature 环境异质性和人类土地利用对欧洲中东部和东南部干草地的影响——第十期干草地专题编集
IF 1.2 4区 生物学 Q2 Environmental Science Pub Date : 2015-09-01 DOI: 10.14471/2015.35.018
E. Ruprecht, M. Janišová, L. Sutcliffe, S. Boch, T. Becker
Der diesjahrige 10. Trockenrasen-Sonderteil von Tuexenia beginnt mit einem Bericht uber die aktuellen Aktivitaten der European Dry Grassland Group (EDGG). Zunachst geben wir einen Uberblick uber die Entwicklung der Mitgliederzahl. Dann berichten wir vom letzten European Dry Grassland Meeting in Tula (Russland, 2014) und vom letzten European Dry Grassland Field Workshop in Navarra (Spanien, 2014) und informieren uber kunftige Veranstaltungen der EDGG. Anschliesend erlautern wir die Publikationsaktivitaten der EDGG. Im zweiten Teil des Editorials geben wir eine Einfuhrung zu den funf Artikeln des diesjahrigen Trockenrasen-Sonderteils. Zwei Artikel beschaftigen sich mit der Syntaxonomie von Trockenrasen in Ost- bzw. Sudosteuropa: der eine prasentiert erstmalig eine Gesamtklassifikation der Trockenrasengesellschaften Serbiens und des Kosovo wahrend der andere Originalaufnahmen sub-montaner Graslandgesellschaften aus den bislang kaum untersuchten ukrainischen Ostkarpaten analysiert. Zwei weitere Artikel behandeln Trockenrasen-Feuchtwiesen-Komplexe im ungarischen Tiefland: Der eine behandelt den Einfluss der Landnutzung auf die Phytodiversitat von Steppen und Feuchtwiesen, der andere den Einfluss von Niederschlagsschwankungen in einem Zeitraum von drei Jahren auf die Ausbildung salzbeeinflusster Steppen-Feuchtwiesen-Komplexe. Der funfte Artikel analysiert landnutzungsbedingte Veranderungen des Graslands des Tsentralen-Balkan-Nationalparks in Bulgarien uber einen Zeitraum von 65 Jahren
10岁的凯撒大街上的尘土部门,开始进行关于欧洲放牧集团(EDGG)最近活动的汇报。我们只是想了解一下规模有多少下一个欧洲灰色地带会议正在俄罗斯(2014)和在西班牙纳瓦拉(2014)举行的最后一次欧洲灰色地带表演会。我们让艾德格公司的公布活动在编辑室的第二部分我们将介绍有两篇文章涉及东方或苏多斯全欧洲的干草语法:其中一篇首次夸扬了塞尔维亚和科索沃干草协会的全面分类,在对迄今为止鲜有研究的乌克兰东喀土邦草社会的另一组原始录音进行分析。另两篇文章对Trockenrasen-Feuchtwiesen-Komplexe位于匈牙利低地一圈:时间使用上的影响力Phytodiversitat草原和Feuchtwiesen,另一个影响,Niederschlagsschwankungen为期三年的培训salzbeeinflusster Steppen-Feuchtwiesen-Komplexe .第五篇文章分析保加利亚个巴尔干半岛国家公园65年以来的荒地与土地使用有关的变化
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引用次数: 7
Plant diversity patterns of a Hungarian steppe-wetland mosaic in relation to grazing regime and land use history 匈牙利草原-湿地马赛克植物多样性格局与放牧制度和土地利用历史的关系
IF 1.2 4区 生物学 Q2 Environmental Science Pub Date : 2015-01-01 DOI: 10.14471/2015.35.006
C. Tölgyesi, Z. Bátori, L. Erdős, R. Gallé, L. Körmöczi
Steppes used to cover large areas of Hungary, but most of this vegetation has since been destroyed. In Central Hungary, some patches have survived on ridges in wet meadows. These habitat complexes face profound land use changes and their optimal management regime is uncertain. We identified seven annually mown steppe and wet meadow types according to their grazing regime and history and aimed to answer the following questions: (1) Does grazing have beneficial effects on mown steppes and wet meadows? (2) Should the presently homogeneous management of neighbouring steppes and wet meadows be maintained? (3) Is annual mowing sufficient in assisting the recovery of steppes and wet meadows on former croplands? We selected three localities for each of the seven vegetation types and sampled them with 50 quadrats (50 × 50 cm) in each locality, making a total of 1,050 quadrats. Vascular plant diversity relations were evaluated using the total number of species per habitat type (species richness) and the average number of species per quadrat (microsite diversity). The effect of grazing and history on microsite diversity was tested with linear mixed-effect models. We used Redundancy Analysis to disentangle the role of grazing intensity and management history on species composition. Plant species were then sorted into functional groups, and the proportions of these groups were used to evaluate community structure. Our results indicate that mowing alone cannot maintain as high a diversity as the combination of the two land use types, thus grazing should be introduced to non-grazed areas. Steppes, however, were found more sensitive to the intensity of grazing than wet meadows. Under heavy grazing, no increased microsite diversity was detected in the steppes and the proportion of disturbance indicators tended to increase. In contrast, the same grazing intensity resulted in only positive effects in wet meadows. Thus, uniform land use on adjacent steppes and wet meadows is not recommended but intensive grazing should be stopped on steppes. Secondary steppes were less diverse than primary ones and their community structure was also poorer, whereas wet meadows had a better regeneration potential. Thus, mowing alone is an incomplete tool to restore the plant diversity of secondary steppes; they should also be grazed and/or should be supported by other active interventions.
草原曾经覆盖匈牙利的大部分地区,但大部分植被已经被破坏。在匈牙利中部,湿草地的山脊上幸存了一些斑块。这些生境综合体面临着深刻的土地利用变化,其最佳管理制度是不确定的。根据不同的放牧制度和放牧历史,我们确定了7种年割草草原和湿草甸类型,旨在回答以下问题:(1)放牧是否对割草草原和湿草甸有益?(2)邻近的草原和湿草甸是否应该保持目前的同质管理?(3)每年割草是否足以帮助恢复原农田上的草原和湿草甸?7种植被类型各选3个地点,每个地点50个样方(50 × 50 cm),共1050个样方。利用每个生境类型的总物种数(物种丰富度)和每个样方的平均物种数(微点多样性)来评价维管植物多样性关系。采用线性混合效应模型考察了放牧和历史对微站点多样性的影响。利用冗余分析分析了放牧强度和管理历史对物种组成的影响。然后将植物分类成功能类群,并利用各功能类群的比例评价群落结构。研究结果表明,单纯放牧不能维持与两种土地利用方式相结合的多样性,因此应在非放牧地区引入放牧。然而,草原对放牧强度的敏感性高于湿润草甸。在重度放牧条件下,草原微站点多样性没有增加,干扰指标的比例有增加的趋势。在相同的放牧强度下,湿草甸只有正效应。因此,不建议在邻近的草原和湿草甸上统一使用土地,但应停止在草原上集约放牧。次生草原的多样性低于初生草原,群落结构也较差,而湿草甸具有较好的更新潜力。因此,仅靠割草是恢复次生草原植物多样性的不完备工具;它们还应该放牧和/或得到其他积极干预措施的支持。
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引用次数: 29
Rainfall fluctuations and vegetation patterns in alkali grasslands - using self-organizing maps to visualise vegetation dynamics 碱草原的降雨波动和植被模式——使用自组织地图可视化植被动态
IF 1.2 4区 生物学 Q2 Environmental Science Pub Date : 2015-01-01 DOI: 10.14471/2015.35.011
B. Lukács, P. Török, A. Kelemen, G. Várbíró, Szilvia Radócz, Tamás Miglécz, B. Tóthmérész, O. Valkó
Knowledge about the drivers of vegetation dynamics in grasslands is fundamental to select appro-priate management for conservation purposes. In this study, we provide a detailed analysis of vegeta-tion dynamics in alkali grasslands, a priority habitat of the Natura 2000 network. We studied vegetation dynamics in five stands of four alkali grassland types in the Hortobagy National Park (eastern Hunga-ry), between 2009 and 2011. We analysed the effect of fluctuations in precipitation on both the overall vegetation composition and on the cover of each species using Self Organizing Map neural networks (SOM). We found that SOM is a promising tool to reveal plant community dynamics. As we analysed species cover and overall vegetation composition separately, we were able to identify the species re-sponsible for particular vegetation changes. Fluctuations in precipitation (a dry season, followed by a wet and an average season) caused quick shifts in plant species composition because of an increasing cover of halophyte forbs, probably because of salinisation. We observed a similar effect of stress from waterlogging in all studied grassland types. The species composition of Puccinellia grasslands was the most stable over the three years with varying precipitation. This was important as this grassland type contained many threatened halophyte species. Self-organising maps revealed small-scale vegetation changes and provided a detailed visualisation of short-term vegetation dynamics, thus we suggest that the application of this method is also promising to reveal community dynamics in more species-rich habitat types or landscapes.
了解草原植被动态的驱动因素是为保护目的选择适当管理的基础。在这项研究中,我们提供了一个详细的分析在碱草原植被动态,自然2000网络的优先生境。2009 - 2011年,对匈牙利东部Hortobagy国家公园4种碱草地类型5个林分的植被动态进行了研究。利用自组织地图神经网络(SOM)分析了降水波动对植被总体组成和各物种覆盖度的影响。我们发现SOM是一个很有前途的揭示植物群落动态的工具。当我们分别分析物种覆盖和整体植被组成时,我们能够确定导致特定植被变化的物种。降水的波动(一个干季,接着是一个湿季和一个平均季)引起了植物物种组成的快速变化,这可能是因为盐碱化导致盐生植物的覆盖面积增加。我们观察到,在所有研究的草地类型中,内涝胁迫的影响相似。在不同降水条件下,普契利亚草原的物种组成最稳定。这一点很重要,因为这种草地类型含有许多受威胁的盐生植物物种。自组织地图揭示了小尺度的植被变化,并提供了短期植被动态的详细可视化,因此我们认为这种方法的应用也有望揭示物种丰富的栖息地类型或景观中的群落动态。
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引用次数: 21
Continental dry grasslands from range margin to range centre - Editorial to the 9th Dry Grassland Special Feature 大陆干草地从范围边缘到范围中心——第九期干草地专题编写者
IF 1.2 4区 生物学 Q2 Environmental Science Pub Date : 2014-09-01 DOI: 10.14471/2014.34.021
S. Boch, E. Ruprecht, T. Reitalu, T. Becker
1) Slovak Academy of Sciences, Institute of Botany, Dumbierska 1, 97411 Banska Bystrica, Slovakia, monika.janisova@gmail.com; 2) University of Bern, Institute of Plant Sciences (IPS) and Botanical Garden, Altenbergrain 21, 3013 Bern, Switzerland, steffen.boch@ips.unibe.ch; 3) Babes-Bolyai University Cluj-Napoca, Faculty of Biology and Geology, Republicii Street 42, 400015 Cluj-Napoca, Romania, eszter.ruprecht@ubbcluj.ro; 4) Tallinn University of Technology, Institute of Geology, Ehitajate tee 5, 19086 Tallinn, Estonia, triin.reitalu@mail.ee; 5) University of Trier, Spatial and Environmental Sciences / Geobotany, Behringstrase 21, 54296 Trier, Germany, beckerth@uni-trier.de; *Corresponding author
1)斯洛伐克科学院植物研究所,Dumbierska, 197411斯洛伐克Banska Bystrica, monika.janisova@gmail.com;2)伯尔尼大学植物科学与植物园研究所,Altenbergrain 21,3013瑞士伯尔尼steffen.boch@ips.unibe.ch;3)克卢日纳波卡巴贝斯-博雅大学生物与地质学院,克卢日纳波卡共和国街42号,400015,罗马尼亚,eszter.ruprecht@ubbcluj.ro;4)爱沙尼亚塔林理工大学地质研究所,爱沙尼亚塔林,triin.reitalu@mail.ee;5)特里尔大学空间与环境科学/地球植物学,德国特里尔21,54296,beckerth@uni-trier.de;*通讯作者
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引用次数: 4
Solonetz meadow vegetation (Beckmannion eruciformis) in East-Hungary – an alliance driven by moisture and salinity 东匈牙利的Solonetz草甸植被(Beckmannion eruciformis) -由水分和盐度驱动的联盟
IF 1.2 4区 生物学 Q2 Environmental Science Pub Date : 2014-01-01 DOI: 10.14471/2014.34.004
B. Deák, O. Valkó, P. Török, B. Tóthmérész
Wet meadows are transitional habitats between wetlands and dry-mesophilous grasslands; thus, they are vital in sustaining biodiversity as sources, stepping stones and green corridors of species dispersal. It is especially valid for inland alkali vegetation, where high landscape-scale patchiness is typical and rapid shifts between vegetation types occur frequently. Solonetz meadows (Beckmannion eruciformis) are among the best-preserved open habitats in Europe harbouring a unique flora including several endemics. Besides their importance, studies on the vegetation of solonetz meadows are scarce even though this knowledge would be vital for their effective conservation and management. Using own records and literature data, we provide a synthesis of the alliance Beckmannion eruciformis to charac-terise its associations floristically and ecologically in five regions along the river Tisza, East Hungary. We studied three associations of the alliance: (i) Agrostio stoloniferae-Alopecuretum pratensis, (ii) Agrostio stoloniferae-Beckmannietum eruciformis and (iii) Agrostio stoloniferae-Glycerietum pedi-cellatae. We found that solonetz meadow associations were separated along a moisture gradient with Agrostio stoloniferae-Alopecuretum pratensis at the drier end and Agrostio stoloniferae-Glycerietum pedicellateae at the wet end. This gradient was also justified by the distribution of the phytosociological groups. The proportion of species of Festuco-Brometea division was the highest in Agrostio stolonifer-ae-Alopecuretum pratensis, while the proportion of Cypero-Phragmitetea species was the highest in Agrostio stoloniferae-Glycerietum pedicellateae. Species of Puccinellio-Salicornetea had the highest proportion in Agrostio stoloniferae-Beckmannietum eruciformis, indicating the high soil salinity of this association. Our results suggest that Agrostio stoloniferae-Alopecuretum pratensis association plays an important role in preserving the continental flora elements of the surrounding dry grasslands. The ecological indicator values for soil moisture and salinity suggest that in case of the studied solonetz meadow associations, humidity increases with decreasing elevation, while salinity is highest at medium elevations. Our results suggest that Agrostio stoloniferae-Beckmannietum eruciformis is a transition towards salt marsh associations, while Agrostio stoloniferae-Glycerietum pedicellatae is a transition towards freshwater marshes. Our results show that preserving solonetz meadows is an important task for nature conservation as they have a crucial role in maintaining landscape-scale species and habitat diversity and act as buffer zones around wetlands.
湿草甸是湿地与干中温草地之间的过渡生境;因此,它们作为物种扩散的来源、垫脚石和绿色走廊,对维持生物多样性至关重要。尤其适用于高景观尺度斑块性典型的内陆碱地植被,植被类型之间频繁发生快速转换。Solonetz草甸(Beckmannion eruciformis)是欧洲保存最完好的开放栖息地之一,拥有独特的植物群,包括几种特有植物。除了它们的重要性之外,对solonetz草甸植被的研究很少,尽管这些知识对其有效保护和管理至关重要。利用自己的记录和文献数据,我们提供了一个联盟的综合,以表征其在东匈牙利Tisza河沿岸的五个地区的区系和生态协会。我们研究了三个联盟:(i)匍匐茎农-草甘膦(alopecuretum pratensis), (ii)匍匐茎农-鹰钩藤(beckmannietum eruciformis)和(iii)匍匐茎农-甘油三酯(glycerietum pedi-cellatae)。结果表明,青草草甸群落沿水分梯度分布,干燥端为匍匐茎-枯秃根,湿端为匍匐茎-甘油三酯。植物社会学类群的分布也证明了这种梯度是合理的。在匍匐茎-青叶-草皮-甘油三酯中,羊茅-溴酸类所占比例最高,而在匍匐茎-甘油三酯中,莎草-芦苇类所占比例最高。在匍枝草-绿枝草群落中,小叶草-水杨草所占比例最高,表明该群落土壤盐分较高。研究结果表明,匍匐茎-草头枯枯菌的结合力在保护周围干旱草原的大陆植物区系要素方面起着重要作用。土壤水分和盐度生态指标值表明,土壤湿度随海拔高度的降低而增加,而盐度在中等海拔高度最高。我们的研究结果表明,匍匐茎-绿beckmannietum eruciformis是一个向盐沼过渡的群落,而匍匐茎-甘油三酯是一个向淡水沼泽过渡的群落。研究结果表明,草甸在维持景观尺度物种和生境多样性方面具有重要作用,在湿地周围具有缓冲带的作用,是自然保护的重要任务。
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引用次数: 41
Dry grasslands of NW Bulgarian mountains: first insights into diversity, ecology and syntaxonomy 保加利亚西北部山区的干燥草原:对多样性、生态学和分类学的首次见解
IF 1.2 4区 生物学 Q2 Environmental Science Pub Date : 2013-09-01 DOI: 10.7892/BORIS.38710
H. Pedashenko, I. Apostolova, S. Boch, A. Ganeva, M. Janišová, Desislava Sopotlieva, S. Todorova, A. Ünal, K. Vassilev, N. Velev, Jürgen Dengler
We present the data of the 3rdresearch expedition of the European Dry Grasslands Group (EDGG), which was conducted in 2011 in two contrasting areas in NW Bulgarian mountains. The aim was to collect plot data for comparing Bulgarian dry grasslands with those of other parts of Europe in terms of syntaxonomy and biodiversity. We sampled 15 nested-plot series (0.0001–100 m²) and 68 normal plots(10 m²) covering the full variety of dry grassland types occurring in the Vratsa area (Balkan Mts.) and the Koprivshtitsa area (Sredna Gora Mt.). In the plots all vascular plants, terricolous non-vascular plants and a set of soil and other environmental parameters were determined. By applying modified TWIN-SPAN, we distinguished 10 floristically well characterised vegetation types at the association level. After comparison with the regional and European literature, we propose to place them within three classes and five orders: Festuco-Brometea with the orders Stipo pulcherrimae-Festucetalia pallentis (xerophilous dry grasslands of base-rich rocks; alliance Saturejion montanae), Brachypodietalia pinnate (meso-xeric, basiphilous grasslands; alliances Cirsio-Brachypodion pinnate and Chyrsopogono grylli-Danthonion calycinae),Calluno-Ulicetea with the order Nardetalia stricae (lowland to montane Nardus swards; alliance Violion caninae), and Koelerio-Corynephoretea with the orders Sedo-Scleranthetalia (open communities of skeleton-rich, acidic soils; alliance unclear) and Trifolioarvensis-Festucetalia ovinae(closed, meso-xeric, acidophilous grasslands; alliance Armerio rumelicae-Potentillion). The Violion caninae with the association Festuco rubrae-Genistelletum sagittalisis reported from Bulgaria for the first time, while the two occurring Koelerio-Corynephoretea communities are described as new associations (Cetrario aculeatae-Plantaginetum radicatae, Plantagini radicatae-Agrostietum capillaris). According to DCA the main floristic gradient was largely determined by soil conditions, differentiating the Festuco-Brometea communities on soils with high pH and high humus content from the Koelerio-Corynephoretea communities on acidic, humus-poor soils, while the Calluno-Ulicetea stands are the connecting link. At 10 m² Festuco-Brometea and Calluno-Ulicetea stands were richer in species across all investigated taxa and in vascular plants than Koelerio-Corynephoretea stands; the latter were richest in lichen species, while bryophyte richness did not differ significantly among syntaxa. Among the Bulgarian classes, the species-area relationships tended to be steepest in the Festuco-Brometea (i.e. highest beta diversity), but both alpha and beta diversity clearly fell behind the Festuco-Brometea communities in the Transylvanian Plateau, Romania, located less than 500 km north of the study region. Overall, our study contributes to a more adequate placement of the Bulgarian dry grasslands in the European syntaxonomic system and provides valuable data for large-scale analyses o
我们介绍了欧洲干草原集团(EDGG)第三次研究考察的数据,该考察于2011年在保加利亚西北部山区的两个对比区进行。目的是收集小区数据,以便在分类学和生物多样性方面将保加利亚的干草原与欧洲其他地区的干草原进行比较。我们选取了15个巢状样地系列(0.0001-100 m²)和68个正常样地(10 m²),覆盖了Vratsa地区(巴尔干山脉)和Koprivshtitsa地区(Sredna Gora山脉)的各种干草地类型。在样地内测定了所有维管植物、陆生非维管植物以及一套土壤和其他环境参数。通过改进TWIN-SPAN,我们在关联水平上区分了10种植物区系特征较好的植被类型。通过与欧洲和地区文献的比较,我们将其划分为3纲5目:Festuco-Brometea与Stipo pulcherrimae-Festucetalia pallentis(富基岩石的干旱草原)目;高山木属,羽状短足植物属(中干性,嗜碱草地);与花萼花亚目花萼花亚目花萼花亚目花萼花亚目花萼花亚目花萼花亚目花萼花亚目花萼花亚目花萼花亚目的花萼花亚目花萼花亚目的花萼花亚目(低地至山地花萼花亚目)的联盟;和Koelerio-Corynephoretea与Sedo-Scleranthetalia目(富骨架的酸性土壤开放群落);联盟不明)和Trifolioarvensis-Festucetalia ovinae(封闭、中干旱、嗜酸草原;联盟Armerio rumelicae-Potentillion)。在保加利亚首次报道了具有羊蹄草-矢状genistelletum关联的Violion caninae,而出现的两个Koelerio-Corynephoretea群落为新关联(Cetrario aculeatae-Plantaginetum radicae, Plantagini radicae - agrostietum capillaris)。根据DCA,主要的区系梯度在很大程度上取决于土壤条件,区分了高pH和高腐殖质含量土壤上的Festuco-Brometea群落和酸性,腐殖质贫瘠土壤上的Koelerio-Corynephoretea群落,而Calluno-Ulicetea是连接环节。在10 m²面积上,Festuco-Brometea和Calluno-Ulicetea林分在所有被调查分类群和维管植物种类上都比Koelerio-Corynephoretea林分丰富;后者以地衣种类最为丰富,而苔藓植物的丰富度在不同的分型间差异不显著。在保加利亚的群落中,Festuco-Brometea群落的种区关系最陡峭(即β多样性最高),但α和β多样性均明显落后于位于研究区以北不到500 km的罗马尼亚特兰西瓦尼亚高原的Festuco-Brometea群落。总的来说,我们的研究有助于保加利亚干草原在欧洲分类系统中的更充分的位置,并为大规模的生物多样性模式分析提供了有价值的数据
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引用次数: 45
Flora und Vegetation von Stadtmauern 城墙上的植物和植被
IF 1.2 4区 生物学 Q2 Environmental Science Pub Date : 1992-01-01 DOI: 10.24355/DBBS.084-200511080100-284
D. Brandes
Die vorliegende Arbeit beschaftigt sich mit der Flora und Vegetation von Stadtmauern in verschiedenen Gegenden Mittel-, West- und Sudeuropas (Deutschland, Frankreich, Italien, Malta, Mallorca, Portugal). Besonderes Gewicht wird auf die Erfassung der Diversitat der Flora gelegt. Ihre Abhangigkeit von verschiedenen Einflusgrosen wie Baustoff, Erhaltungszustand der Mauer sowie Einflus der Umgebung wird untersucht. Bereiche mit quasihomogener Vegetation werden mit pflanzensoziologischen Aufnahmen dokumentiert. In Mitteleuropa nordlich der Alpen wird der spontane Bewuchs der Stadtmauern vor allem von Ruderalpflanzen, aber auch von Arten der Trockenrasen und der Walder aufgebaut, wahrend Asplenietea-Arten bis auf Asplenium ruta-muraria-Bestande und Cymbalaria muralis-Bestande nur eine geringe Rolle spielen. In wintermilden Gebieten Frankreichs sind Parietarietalia-Arten in den Mauerfugen viel starker als in Mitteleuropa vertreten, was auch fur den Alpensudrand gilt. Im (west)-mediterranen Raum ist Parietaria judaica die haufigste Art der Stadtmauern, gebietsweise dominieren Capparis spinosa, Antirrhinum siculum oder Antirrhinum majus ssp. linkianum. Alte Stadtmauern konnen einen erheblichen Artenreichtum aufweisen. Mauerkronen, Mauerfugen und Mauerfuse stellen fur eine Reihe gefahrdeter synanthroper Arten wichtige Refugien dar. Stadtmauern besitzen daher eine grose Bedeutung fur den Naturschutz, besonders im Flachland, da sie dort oft die einzigen alten Mauern sind. Erhaltungsprobleme und Interessenkonflikte mit dem Denkmalschutz werden eingehend diskutiert.
这项工作跟城墙内的植物和植物密切相关,分别分布在中部、西部和南部的几个城市(德国、法国、意大利、马耳他、马略卡岛和葡萄牙)。特别强调的是花卉品种的多样化记录。并将你同不同大小的赌注叫好…包括建造材料维护墙面的独特性能…忧郁症可以由社会学家记录在整个中欧北部,城墙上心性的东西主要生长在旱地植物以及干草地和森林作物上,当沥青叶类植物发展为沥青木顶蚁、过滤网蚁和Cymbalaria muralis时,作物作用都极为有限。在法国冬天较温和的地区,泥石流是较中部地区常见的,同样,高山地带也一样。在(西)地中海房间,帕利亚·朱利亚是最好的城墙,在领土上占统治地位linkianum .古老的城墙可能有着丰富的物种。砌砖工人使用的顶层通道因此,城墙对于环境保护特别有重大意义,特别是在低地,因为城墙通常是唯一的旧墙。对于遗产保护装置和利益冲突的问题会进行详细的讨论。
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引用次数: 33
Zur Soziologie einiger Neophyten des insubrischen Gebietes 从胰岛素地带的几个新生儿的社会学中
IF 1.2 4区 生物学 Q2 Environmental Science Pub Date : 1989-01-01 DOI: 10.24355/DBBS.084-200511080100-291
D. Brandes
Die insubrische Flora zeichnet sich durch einen grosen Anteil von Neophyten aus, wobei insbesondere das Vorkommen zahlreicher ostasiatischer Sippen bemerkenswert ist. Da uber die einzelnen Arten bislang nur wenig bekannt ist, wird das pflanzenphysiologische Verhalten von Ailanthus altissima, Artemisia verlotiorum, Buddleja davidii, Duchesnea indica, Erigeron karvinskianus und Impatiens balfourii untersucht.
胰岛素花草系有很大一部分,其中有许多东亚氏族。由于迄今为止人们对不同物种的了解甚少,本研究研究了allanthus altissima、阿提米西亚·安提奥姆、佛教·戴维森、杜奇尼娜·尹卡、丽格伦·卡万斯基(erivinskiunus)和巴拉第斯
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引用次数: 3
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Tuexenia
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