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Estimating biomass and phenology in African Rangelands using Earth Observation Background: INES (Lars Eklundh and Jonas Ardö) recently got a contract for a project (RAMONA, staring in December 2021) with the European Space Agency (ESA). This project aims to develop and apply methodology to assess grazing resources in African Rangelands using (mainly) data from the Sentinels (Sentinel 1,2, and 3 in

https://www.nateko.lu.se/sites/nateko.lu.se/files/2021-11/EXJOBB_Ramona.pdf - 2026-09-29

We present quantitative reconstructions of regional vegetation cover in north-western Europe, western Europe north of the Alps, and eastern Europe for five time windows in the Holocene [around 6k, 3k, 0.5k, 0.2k, and 0.05k calendar years before present (bp)] at a 1 degrees x1 degrees spatial scale with the objective of producing vegetation descriptions suitable for climate modelling. The REVEALS m

Popular Abstract in Swedish När man hör ordet ”klimatförändringar” tänker många direkt på en förhöjd temperatur – så kallad global uppvärmning. Även om en förhöjd temperatur är en viktig del av framtida klimatförändringar så är det inte den enda förändringen vi kan förvänta oss. Sjöar på norra halvklotet och således även i Sverige har under de senaste årtiondena fått en ökad vattenfärg. Orsaken baThe effects of increasing temperatures, in light of climate change, have been a well-studied topic during the past decades. However, aquatic ecosystems are also faced with additional challenges such as increasing water colour, known as “brownification”. Although we know that temperature and water colour will increase simultaneously this has been given little attention in ecological research. In th

Popular Abstract in Swedish Depression är ett allvarligt och potentiellt förödande hälsoproblem som drabbar flera miljontals människor i världen. Trots framsteg inom depressionsforskningen återstår flera frågor kring varför vissa individer upplever depression, och andra inte, och varför vissa blir hjälpta av behandling, och andra inte. Den forskning som rapporteras här tar som utgångspunkt hypotesDepression is a serious and potentially devastating health problem, impacting millions of individuals worldwide. Although advances have been made in depression research, there remain a number of outstanding questions as to why certain individuals experience depression and why some respond to treatment and others do not. The present research takes a starting-point in the hypothesis that the existen

This study presents GIS-based estimates of permafrost extent in the northern circumpolar region during the Last Glacial Maximum (LGM), based on a review of previously published maps and compilations of field evidence in the form of ice-wedge pseudomorphs and relict sand wedges. We focus on field evidence localities in areas thought to have been located along the past southern border of permafrost.

This essay examines especially Russia`s role in the civil war in Syria that started on 15 March year 2011. External actors` political views, their cooperation with Russia and their interests in Syria have also been processed in this paper. My methodology consists of qualitative text analysis. An open approach was used when I have practiced my textual analysis. This means that the investigation is

Mesozoikum anses ha utgjort en ”växthusperiod” i Jordens historia med avsevärt höga koldiox-idhalter i atmosfären samt förhöjda temperaturer, men det återstår många frågor att besvara angående klimatut-vecklingen för hela detta intervall. Tidig jura karaktäriseras till exempel av ett varmt klimat, och föregås och efter-följs av två kortare perioder med väldigt höga CO2 halter, som sammanfaller medThe Mesozoic was a so-called “hothouse” time period in Earth’s history, with high concentrations of atmospheric CO2 and elevated temperatures, but the exact climate evolution is not fully known for the entire inter-val. The Early Jurassic for instance is believed to have been a warm period, flanked by two episodes of extremely high CO2, coinciding with environmental degradation and mass extinction

China is facing multiple challenges of environmental degradation, resource scarcity, and rapid urbanization. The challenges along with people's needs to improve living condition force China to value the importance of developing green buildings. In 2006 the first national green building assessment tool -­‐ Evaluation Standard for Green Building (GBS) was released and widely implemented soon aft

Predicted responses of transpiration to elevated atmospheric CO2 concentration (eCO2) are highly variable amongst process-based models. To better understand and constrain this variability amongst models, we conducted an intercomparison of 11 ecosystem models applied to data from two forest free-air CO2 enrichment (FACE) experiments at Duke University and Oak Ridge National Laboratory. We analysed

This study explores the relationship between land-use and floristic diversity between 600 BC and AD 2008 in the uplands of southern Sweden. We use fossil pollen assemblages and the Regional Estimates of Vegetation Abundance from Large Sites (REVEALS) model to quantitatively reconstruct land cover at a regional scale. Floristic richness and evenness are estimated using palynological richness and RE

Root exudates can significantly modify microbial activity and soil organic matter (SOM) mineralization. However, how root exudates and their C/N stoichiometric ratios control paddy soil C mineralization is poorly understood. This study used a mixture of glucose, oxalic acid, and alanine as root exudate mimics for three C/N stoichiometric ratios (CN6, CN10, and CN80) to explore the underlying mecha

Historically, aerosols of anthropogenic origin have offset some of the warming from increased atmospheric greenhouse gas concentrations. The strength of this negative aerosol forcing, however, is highly uncertain-especially the part originating from cloud-aerosol interactions. An important part of this uncertainty originates from our lack of knowledge about pre-industrial aerosols and how many of

Water demand growth coupled with its high spatial-temporal mismatch of water resources will lead to an increasing water scarcity worldwide. In order to investigate a robust long-term water stress for ecosystems and regions across China, the improved maximum entropy production (MEP) method was utilized to obtain a reliable evapotranspiration (ET) product during 1982–2015. Afterwards four water stre

Warmer or cooler spring in northern high latitudes will, for the most part, directly impact gross primary productivity (GPP) of ecosystems, but also carry consequences for the upcoming seasonal GPP. Spatiotemporal patterns of these legacy effects are still largely unknown but important for improving our understanding of how plant phenology is associated with vegetation dynamics. In this study, imp

Increasing Heat in China, Mitigation and Adaptation strategies Increasing Heat in China, Mitigation and Adaptation Prof. Cunrui (Ray) HUANG School of Public Health, Sun-Yat-sen University, China • Over the last three decades, rapid economic growth in China has pulled hundreds of millions of people out of poverty  Environmental effects of economic growth are of increasing concern to Chinese people

https://www.pi.lu.se/sites/pi.lu.se/files/increasing_heat_in_china_mitigation_and_adaptation_huang_cunrui.pdf - 2026-09-29

Fire is a global phenomenon and a key Earth system process. Extreme fire events have increased in recent years, and fire frequency and intensity are projected to rise across most regions and biomes, posing substantial challenges for ecosystems, the carbon cycle, and society. The Fire Model Intercomparison Project (FireMIP), launched in 2014, has advanced global fire modeling in Dynamic Global Vege

Innovation is widely recognized as a critical driver of socio-economic development, drawing sustained attention from both scholars and policymakers. Yet despite extensive research, a systematic and comparative understanding of how innovation studies have evolved across time and space remains limited. This study employs a bottom-up strategy using topic modeling to trace the thematic evolution of in

The past years have witnessed a surge of academic interest into how new industrial paths are developed in regions. Transformation processes of existing regional industries have received less attention. This article focuses on radical innovation-based renewal processes of established paths and investigates how regional innovation systems are tackling challenges related to path transformation. Drawi

Politices kandidat programmet (180 poäng) Department of Human Geography Dnr U 2014/701 A. Master of Science (120 credits) Programme in Human Geography (Masterprogram i samhällsgeografi) Credits: 120 credits Cycle: Second cycle Programme code: SASAM: HUGE This syllabus was approved by the Dean 1 October, 2012, as delegated by the Board of the Faculty of Social Sciences on 27 September, 2012. The sy

https://www.keg.lu.se/sites/keg.lu.se/files/huge_utbildningsplan_2014-10-23_eng_beslut.pdf - 2026-09-29