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Flash droughts, as sub-seasonal phenomena, are characterized by their rapid onset and significant impact on terrestrial ecosystems. However, understanding how vegetation responds to flash droughts and the mechanisms governing vegetation recovery remains elusive. Here, we analysed the response of vegetation productivity to flash droughts and identified the most relevant drivers controlling vegetati
Insect and disease outbreaks in forests are biotic disturbances that can profoundly alter ecosystem dynamics. In many parts of the world, these disturbance regimes are intensifying as the climate changes and shifts the distribution of species and biomes. As a result, key forest ecosystem services, such as carbon sequestration, regulation of water flows, wood production, protection of soils, and th
The synthesis of model and observational information using data assimilation can improve our understanding of the terrestrial carbon cycle, a key component of the Earth's climate-carbon system. Here we provide a data assimilation framework for combining observations of solar-induced chlorophyll fluorescence (SIF) and a process-based model to improve estimates of terrestrial carbon uptake or gross
There has been widespread recognition in the Global South of the role of participatory governance approaches to urban development in responding to citizens’ immediate concerns. However, critiques note that participatory initiatives are often avenues for the political and economic elite to ensure their interests and profits, rather than improving the livelihoods in non- serviced urban peripheries.
The springtime transition to regional-scale onset of photosynthesis and net ecosystem carbon uptake in boreal and tundra ecosystems are linked to the soil freeze-thaw state. We present evidence from diagnostic and inversion models constrained by satellite fluorescence and airborne CO2 from 2012 to 2014 indicating the timing and magnitude of spring carbon uptake in Alaska correlates with landscape
In order to effectively tackle the on-going changes in global climate, stakeholders and policy makers across the globe need timely and accurate information they can trust on a wide range of topics. Here we briefly describe how observational data on greenhouse gas concentrations collected from the ICOS network of measurement stations in Europe is transformed via atmospheric modelling into informati
Postadress Campus Helsingborg Box 882, 251 08 Helsingborg Besöksadress Universitetsplatsen 2, 252 25 Helsingborg Telefon, 042-35 65 19, 042- 35 65 00 (växel) E-post carola.fors@ch.lu.se Webbadress www.ch.lu.se Utveck l ingsenheten 1 (6) Protokoll Campus husstyrelse Närvarande Charlotta Johnsson rektor, Campus Helsingborg Jerker Jacobsson admin. chef, utvecklingsenheten Veronica Åberg lokalansvarig
https://www.ch.lu.se/internt/sites/ch.lu.se.internt/files/2024-06/Husstyrelsen%202024-05-22%20protokoll.pdf - 2026-07-13
Under sustained global warming, Arctic climate is projected to become more responsive to changes in North Pacific meridional heat transport as a result of teleconnections between low and high latitudes, but the underlying mechanisms remain poorly understood. Here, we reconstruct subarctic humidity changes over the past 400 kyr to investigate the role of low-to-high latitude interactions in regulat
Elevated air temperature and atmospheric vapor pressure deficit (VPD) are key drivers of plant physiological and ecological processes. However, their relative impacts on vegetation productivity remain difficult to isolate due to the strong coupling between them. This coupling complicates efforts to disentangle independent effects, particularly under compound drought conditions at regional or globa
Shallow lakes worldwide face escalating pressures from eutrophication and climate change, yet comprehensive monitoring of Chlorophyll-a (Chl-a) spatiotemporal dynamics remains challenging due to the high costs and logistical constraints of traditional sampling approaches across large, heterogeneous water bodies. Lake Balaton, a large shallow lake system (80 km long, 7 km wide, 3.7 m mean depth) in
Understanding greenhouse gas fluxes in semi-arid ecosystems is critical for improving our understanding of biogeochemical cycles, particularly in underrepresented regions like the African Sahel. In these landscapes, greenhouse gas exchange arises from ground, trees, and water ponds, and is further shaped by environmental conditions and grazing. The carbon dioxide, methane, and nitrous oxide fluxes
The paper analyses the legal framework for the collection and distribution of remote sensing data, particularly in the field of sustainable development and environmental protection at the European level. The research firstly focuses on the historical evolution of space law at the international, European, and national levels, starting from the 1970s. In parallel, environmental law has rapidly devel
Climate change is expected to have the greatest impact on the world's economically poor. In the Sahel, a climatically sensitive region where rain-fed agriculture is the primary livelihood, expected decreases in water supply will increase food insecurity. Studies on climate change and the intensification of the water cycle in sub-Saharan Africa are few. This is due in part to poor calibration of mo
Thermal adaptation of gross primary production and ecosystem respiration has been well documented over broad thermal gradients. However, no study has examined their interaction as a function of temperature, i.e. the thermal responses of net ecosystem exchange of carbon (NEE). In this study, we constructed temperature response curves of NEE against temperature using 380 site-years of eddy covarianc
Traits that affect organismal fitness are often highly genetically variable. This genetic variation is vital for populations to adapt to their environments, but it is also surprising given that nature – after all – ‘selects’ the best genotypes at the expense of those that fall short. Explaining the extensive genetic variation of fitness-related traits is thus a longstanding puzzle in evolutionary
Årsrapport 2020 KOO Å R S R A P P O R T · K O M M U N I K A T I V A O F F E N T L I G A O R G A N I S A T I O N E R Kommunikativt medarbetarskap Rickard Andersson, Mats Heide och Charlotte Simonsson Institutionen för strategisk kommunikation Lunds universitet · april 2021 © Rickard Andersson, Mats Heide och Charlotte Simonsson 2021 Institutionen för strategisk kommunikation Lunds universitet ISBN
https://www.isk.lu.se/sites/isk.lu.se/files/2021-04/Kommunikativt%20medarbetarskap.pdf - 2026-07-13
Northwest China's arid climate and fragile ecosystems are becoming wetter and greener. However, the rapid expansion of photovoltaic (PV) infrastructure in this region alters land-atmosphere interactions, with potential consequences for local climate and water resources. Here, we use a combined climate and dynamic vegetation modeling approach to assess the effects of hypothetical PV deployment acro
Agroforestry systems – combining trees with crops and/or livestock – are increasingly promoted as sustainable and climate-resilient land-use strategies. Despite their widespread presence in the Sahel, experimental data on their potential as carbon sinks are scarce. This study presents a full-year, high-frequency dataset of CO2 fluxes in a Sahelian agro-silvo-pastoral parkland dominated by Faidherb
Transpiration drives up to 40 % of terrestrial precipitation, with forests playing a critical role. This study combines long-term sap flow measurements and surface-based cloud observations to examine how different clouds affect tree transpiration across boreal and temperate European forests. Under specific cloudy conditions, sap flow can exceed clear-sky levels, reflecting distinct radiation effec
