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[ID: 384] 10128 Maj, 10129 Hundsjö

PI: Linnea Larsson

Tree species trial on agricultural land. Two sites, 10128 Maj and 10129 Hundsjö. Established 2015, including tree-species-specific plots, full-mix plot and a 4-mix plot. Two birch species, Scots pine, Norway spruce, Larch, Lodgepole pine (contorta), poplar and alder.

Tree speciesagrucultural landsilviculture

[ID: 382] Drettinge

PI: Therése Strömvall Nyberg

Det här nationella skärmförsöket blev utlagt på 90-talet. 22 ytor lades ut där drettingemetoden användes för att försöka etablera barrblandskog av tall och gran. Försöket utvärderades 2005 men sedan dess har inga återbesöks gjorts. Hur har det gått för skogen? Har det blivit någon barrblandskog?

barrblandskogskärmförsöknationellt

[ID: 381] SITES General

PI: Johan Westin

SITES (Swedish Infrastructure for Ecosystem Science) is a national infrastructure that facilitates long-term, world-class field based ecosystem research by offering a unique infrastructure and expertise to the Swedish and international research community. SITES aims to promote high-quality research through long-term field measurements and field experiments, and by making data available. The core of SITES is nine field research stations that represent a variety of Swedish climate zones and ecosystems, including agricultural land, forests, wetlands, lakes and streams. SITES three thematic programs: Aquanet, Water and Spectral, offer open data from long-term monitoring and experimental installations. Principals of SITES are University of Gothenburg, Swedish Polar Research Secretariat, Swedish University of Agricultural Sciences (SLU) and Stockholm University. SITES is funded by the Swedish Research Council, together with the principals of the research stations. The coordinator of SITES is the Swedish University of Agricultural Sciences, where also the secretariat is located. The collaboration is regulated by a consortium agreement between the principals. SITES is governed by an independent steering group and the daily work is led by a scientifically well merited director.

AquanetWaterSpectralLong-term field trials

[ID: 380] Deep groundwater carbon sources and age

PI: Marcus Klaus

Groundwater is one of the largest continental carbon (C) pools, but it is unclear where this C comes from and how long it resides in the subsurface before being released to the atmosphere through inland waters. The aim of this project is to unravel the magnitude, sources and age of C in groundwater aquifers within the Krycklan Catchment study. Twelve groundwater wells of different depth are sampled for carbon age, bulk groundwater age and concentrations of various carbon species, including dissolved organic and inorganic carbon and methane. The project will enable the quantification of legacy effects of groundwater in the C cycle and potential delays in the response of C emissions from groundwater-fed inland waters to changes in land C uptake. The project results will have implications for the development of more accurate landscape C models.

groundwatercarbondating

[ID: 379] Impact of climate change on peatland mesocosms under various scenarios

PI: Shokoufeh Salimi

The project aims to investigate the effect of climate change on peatland mesocosms under different scenarios a) left alone b) ditch cleaning c) restoration. In this study, the response of peatlands mesocosms will be monitored in terms of hydrology, nutrients dynamics, as well as greenhouse gas emission.

Peatland mesocosmsClimate changeRestoration

[ID: 378] Hyggesålder björk

PI: Urban Nilsson

Testing the effects of several clearcut treatments on the growth of birch. One site per experimental park.

clearcutbirchbetula

[ID: 377] Renskötselanpassat skogsbruk

PI: Dan Bergström

Renskötselanpassat skogsbruk i norrbotten

rensködselskogsbruknorrbotten

[ID: 376] VR Shedding light on the dark reduction mobilizing mercury in peat

PI: Kevin Bishop

This project will test if redox processes in the uppermost decimeters of peat can link atmospheric concentration changes to this dramatic shift in the direction of mercury movement between the atmosphere and the peat surface.

mercuryreductionland-atmosphere exchange

[ID: 375] Summer Interns France

PI: Kevin Bishop

Students from ENGEES and other French Universities do 3 month internships based at the Vindeln Experimental Forests. Kevin Bishop has been utilizing these students since 2011 to assist in field projects related to hydrology, carbon and mercury

HydrologyCarbonMercuryENGEESSLU NJ Ämne Miljöanalys

[ID: 374] Growth response of Norway spruce and Scots pine in Sweden

PI: Friday Nwabueze Ogana

In this project, we will carry out a country-scale representative analysis of the radial growth response of Norway spruce and Scots pine to weather conditions. We hope to delineate the spatial patterns and relative strength in the way these species respond to weather conditions in Sweden.

Dendrochronologyprecipitationtemperature

[ID: 373] Collection of air and solid samples to produce a radiocarbon budget and determine the mean transit time of carbon

PI: Carlos A. Sierra

In this project, we will collect air samples inside the forest canopy at different heights to determine the 14C signature of the respired CO2 from the ecosystem in the footprint of the ICOS tower. To determine the source of the 14CO2, we will collect additional samples from vegetation and soils for 14C determination. The overall goal of the project is to obtain an estimate of the mean transit time of carbon; i.e. the time it takes carbon atoms to pass throught the ecosystem, from photosynthesis until respiration.

Radiocarbontransit timeecosystem respirationcarbon sequestration

[ID: 372] Test av mekaniska plantskydd. Uppdrag Södra

PI: Stefan Eriksson

Test av mekaniska plantskydd och behandlingsmetoder. Uppdrag från Södra.

Plantskyddbehandlingplanttyp