canopy structure
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Central Europe maintains a considerable diversity of dry-mesic oak forests as the main representatives of zonal forest vegetation types in Hungary, covering the major part of foothills of the middle-range mountain, Inner Western Carpathians. The 669 m high, Triassic limestone hill called ‘Vár-hegy’ belongs to the Bükk Mountains. The annual mean temperature is about 8◦C and the annual precipitation is about 650 mm. The core area of the reserve (94 ha) is covered mainly by close-to-nature. long untouched oak dominated forests stands: Pannonic woods with Quercus petraea and Carpinus betulus; Pannonian-Balkanic Turkey oak-sessile oak forests; Pannonian woods with Quercus pubescens. It has been set aside for preservation in 1991, though several previous conservation acts had already secured almost spontaneous natural development of the stands. Most of the area was cut around 1880, however, several over-mature trees were retained. The intensive use in the previous centuries and during the world wars left a sessile oak dominated, 120-130-year-old, mostly coppice forest. The abandonment and the precedent severe oak decline contributed to generate a more diverse forest composition and structure developing towards a mixed forest with pronounced ‘old-growth’ characteristics.
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The LWF research programme provides, on the one hand, long-term data series from the last 20 years, together with a scientific interpretation to national and international policy makers. On the other hand, the available data and latest LWF infrastructure provide an attractive scientific platform for collaboration with both national and international partners. The site is located close to the city of Davos in the canton of Graubuenden, within a natural, coniferous forest stand which mainly consists of 200-390 year-old spruce (Picea abies) trees. Among others, the site is equipped with two meteorological measurement stations; one is located within the forest stand, the second is co-located in the nearby open-field, allowing to measure the forest stand effect on micro-climate. The following parameters are being measured (starting-end year): Atmospheric deposition (throughfall and bulk deposition) (2009-today), Circular vegetation plots (2008-today), Crown Condition Assessment (2006-today), Diameter and Height measurements (2004-today), EC-5 soil water content measurement (2008-today), EC-5 soil water content measurement (2008-today), Foliar analyses (2007-today), Leaf area index (LAI) (2008-today), Litterfall (2009-today), Manual circumference band measurement (2006-today), Matric potential (manual suction cups) (2009-today), O3 Injuries (2009-today), Ozone visible injury assessment (2009-today), Permanent vegetation quadrats (2008-today), Phenological observations (2009-today), Sapflow measurements (1998-today), Soil matrix chemistry (2007-today), Soil solution chemistry (lysimeters) (2010-today), Tree core sampling (), automated point dendrometer measurements (1998-today), automatic circumference band measurement (2006-today), Deadwood sampling (2009-today).
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The LTER IAFA site has been running since 1999 and was the first long-term ecological research site in the Amazon. It is situated north of Manaus, central Amazon and includes three sub-sites, with undisturbed terra-firme forest (Reserva Ducke), selective logging (ZF-2 Forest Management Station), and forest fragmentation (Biological Dynamics of forest fragments – BDFFP sites) spread over around 30 x 30 km landscape. Both logging and fragmentation were carried out as controlled experiments to test their effects on biodiversity and ecosystem processes, and thus to outline recommendations for management. The 3 research areas together have 156 permanent monitoring plots, both terrestrial and aquatic, as well as grids of trails for large-scale process monitoring. The information produced has been stored on a public website (https://ppbio.inpa.gov.br/repositorio/dados) where anyone can search data and metadata about the research, as well as the list of publications and all the educational material ( books, identification guides, training course materials) for download.
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'Tyrolean Mountain Grassland and -Forest' currently consits of 'Stubai - combination of Neustift meadows and Kaserstattalm' (DEIMS.iD: https://deims.org/324f92a3-5940-4790-9738-5aa21992511c). Additional forested research locations may be added in the future.
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Hainich is a large deciduous forest area in Thuringia and is situated in central Germany not far from the town of Eisenach with the famous Wartburg Castle. With a total area of ca. 16.000 hectares (13.000 hectares of which is forest), Hainich is the largest continuos area of deciduous forest in Germany. On the 31.12.1997 the southern part of Hainich, with an area of 7.500 hectares, was declared Germany’s 13th National Park. Since then it has been seen as a place of relaxation close to nature that is open to sustainable tourism. The area has gone through an amazing development which is quite unique. Since 2011 Hainich is part of UNESCO World Heritage Site "Primeval Beech Forests of the Carpathians and the Ancient Beech Forests of Germany".
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The site is located next to Wettingen in the canton of Aargau, within a natural, mixed forest stand which mainly consists of 150 year-old beech (Fagus sylvatica) and 120-170 year-old spruce (Picea abies) trees. Among others, the site is equipped with two meteorological measurement stations; one is located within the forest stand, the second is co-located in the nearby open-field, allowing to measure the forest stand effect on micro-climate. The following parameters are being measured since 2013: Soil solution chemistry (lysimeters), TREENET, atmospheric deposition (throughfall and bulk deposition), circular vegetation plots, crown condition assessment, diameter and height measurements, foliar analyses, leaf area index (LAI), litterfall, manual circumference band measurements, Ozone visible injury assessment, permanent vegetation quadrats, phenological observations, sapflow measurements, soil matrix chemistry, tree core sampling, automated point dendrometer measurements, automatic circumference band measurements.
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The site Bily Kriz (Bílý Kříž) is located in Moravian-Silesian Beskids Mountains. Ecosystem type: Managed secondary pure Norway spruce stand. Prevailing species: Norway spruce (Picea abies [L.] Karst.) Height of the stand: 17 m (2016) Understory: Vaccinium myrtillus L. Year of plantation: 1981 by 4 years old seedlings
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For over 20 years as a team of Long Term Sites in Serra do Cipó PELD-CRSC has been working to answer crucial questions of evolutionary ecology and provide a basis for understanding the spatio-temporal ecosystem functioning and it is future challenges with changes in climate and land use.
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Berchtesgaden National Park was established in 1978 and is the only German national park located at the Alps. It comprises three major valleys and covers an elevantional range from 600 to 2700 m. Ecosystems include montane mixed forest and subalpine coniferous forest, alpine grasslands, pastures and rocky habitats. The Department for Research and Monitoring is linked to the Techincal University of Munich. It conducts monitoring on climate, hydrology, ecosystem dynamics and biodiversity. Main research topics include drivers of natural ecosystem dynamics, human impacts on ecosystems and climate change effects on ecosystems.
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Suserup Skov (19.2 ha) is an old growth temperate forest dominated by beech Fagus sylvatica, pedunculate oak Quercus robur, ash Fraxinus excelsior, wych elm Ulmus glabra, and black alder Alnus glutinosa, admixed with lime Tilia platyphyllos and sycamore maple Acer pseudoplatanus. KU/IGN-SNB, is a 19,2 ha old-growth beech-dominated mixed deciduous forests on western Zealand owned by Sorø Academy. The forest use dates back to 4200 BC. A conservation act was placed on the forest in 1925 for biological and recreational purposes but allowing a minimum odd felling until the act was updated in 1961 to a non-intervention forest. The forest is unique at European level in terms of nonintervention, and the long-term status as non-intervention forest has led to a unique steady state in biomass and accumulation of dead wood, thus serving as an important reference site for unmanaged temperate deciduous forest development. There are long-term data records of e.g. biomass, dead organic matter, soil, forest structure, flora and fungi starting from 1992. The platform is included in a series of paired managed and non-intervention forests for studies of forest structure, biodiversity and biogeochemistry in mature and old beech-dominated forests. Suserup Forest includes an ICP Forests level II plot (2001-). Upgrades: eLTER master sites: soil moisture content (TDR), remote sensing of growth and forest structure, LAI, NDVI (Lidar, camera), continuous plant phenology (web cam),and insect monitoring (optical sensors) as biodiversity measures, ambient air quality and air pollution.