Tessera

C. Jänicke

@cjaenicke.bsky.social

Research associate at Leibniz Institute of Agricultural Development in Transition Economies (IAMO) and PhD candidate at Humboldt Universität zu Berlin. I am studying land systems with a focus on agricultural land use and land ownership patterns.

31 Posts181 Follower 262 Folgt

C. Jänicke @cjaenicke.bsky.social · 2mo ago

I'm currently at the IAMO Forum 2026. It's always a very relaxed atmosphere and well organized conference. I just can recommend it! 1/3

C. Jänicke @cjaenicke.bsky.social · 3mo ago

Wow, richtig spannender Artikel zum Thema Rentendebatte und eine Argumentation die mir neu war, ich aber sehr schlüssig finde.

Für sachliche Politik@sachlichepolitik.eurosky.social · 8mo ago

Da es in der Rentendebatte ein kaum auszumerzendes (höhö) Narrativ gibt (wie bei der Schuldenbremse die "schwäbische Hausfrau"), dass ein schlichter Blick auf die Demografie doch klarmache, dass "wir Reformen brauchen", möchte ich euch allerwärmstens diesen Text ans Herz legen, der leicht 1/6

Earth Observation Lab @humboldteolab.bsky.social · 3mo ago

New publication out now! @philrufin.bsky.social, Pauline Hammer et al. mapped 17M fields in Mozambique using deep learning and satellite imagery. With 78% of fields being <0.5 ha, this provides critical data for sustainable land use policies! Read more here: iopscience.iop.org/article/10.1...

$Announcement graphic for a scientific publication in Environmental Research Letters titled "National-scale field delineation in Mozambique refines our understanding of cropland distribution, field size, and deforestation actors" by Rufin, Hammer et al. The central feature is a map of Mozambique color-coded by Mean Field Size, ranging from 0.01 hectares (tan) to 2.50 hectares (teal). Additionally, various maps and statistical graphs regarding mean field size show close-up field boundaries across the country and correlate field size with variables such as cropland fraction, travel time, and population density. The background is dark navy blue, right bottom corner shows the Earth Observation Lab pictogram, a satellite orbiting a globe.$

C. Jänicke @cjaenicke.bsky.social · 6mo ago

We’re excited to announce a major update to the Harmonized IACS Inventory (v1.3)! Thread below for what’s new! 👇 #IACS #GIS #OpenAccess

C. Jänicke @cjaenicke.bsky.social · 6mo ago

Are you IACS data user? Please consider participating in this survey and collect some karma points.

MAE Uni Göttingen@maeunigoe.bsky.social · 6mo ago

Obtaining + working with IACS (InVeKoS) data can be painful? It would be great if you could share your experiences in an anonymous online survey to support a knowledge base and to inform data providers: umfrage.hu-berlin.de/iacsdata Please feel free to share this post or forward the link!

C. Jänicke @cjaenicke.bsky.social · 10mo ago

Just published 🌱: We dug into 16 million+ field records across Central Europe to find out what drives farmers’ crop rotation choices. Turns out past cropping, agronomic advice, and legume prices matter a lot and legumes are likely to play a much bigger role in the future👉 doi.org/10.1016/j.ag...

Redirecting

doi.org

MAE Uni Göttingen @maeunigoe.bsky.social · 12mo ago

#EAAE2025 🚨: What is the role of land use/ownership concentration for land prices? Evidence for Brandenburg by @cjaenicke.bsky.social + @stefanseifert.bsky.social Join us on Wednesday, August 27, at 5:45 pm 👉 Poster screen 3

IAMO Land System Group @iamo-lsg.bsky.social · last yr.

🦋 The Land System Group is now on Bluesky! We're excited to share some interesting insights from our research group at IAMO. Keep up to date by following us.

Earth Observation Lab @humboldteolab.bsky.social · last yr.

Using Remote Sensing and Agro-Ecosystem Modelling 🛰️🌽📈, Esther Shupel Ibrahim analyzes impacts of climate change and diseases on smallholder agriculture in Nigeria and develops strategies to support and empower smallholder farmers. Find out more about her PhD research in this StoryMap: arcg.is/1bG48K

Header Image of Maize field with a picture of Esther Shupel Ibrahim and text: Research for Smallholder Farmers' Food Security in Nigeria

Daniel Müller @danielmu11er.bsky.social · last yr.

A comprehensive field- and farm-level land-use dataset from the Integrated Administration and Control System (IACS) is now available: doi.org/10.1038/s415... #OpenData #EUAgri #LandUse #SustainableFarming

Field and farm-level data on agricultural land use for the European Union - Scientific Data

Scientific Data - Field and farm-level data on agricultural land use for the European Union

doi.org

Akrotelm 🌾@akrotelm.bsky.social · last yr.

Neue Studie zu #Glyphosat. 💥 👉 "Jeder Haushalt 🏠 trägt dazu bei, dass dieses Gift die Natur belastet." Damit ist die These, dass die hohe Belastung in Gewässern nicht nur aus der #Landwirtschaft 🚜 stammt, sondern zu großen Anteilen aus 🏘 Haushaltsabwässern, bestätigt. Bericht im DLF 📻 👇

Wie Waschmittel zur Entstehung von Glyphosat beitragen

Glyphosat kann nicht nur durch die Landwirtschaft in Gewässer gelangen, sondern auch durch Kläranlagen. Ursache ist ein Bestandteil in den Waschmitteln.

deutschlandfunk.de

Akrotelm 🌾@akrotelm.bsky.social · 2y ago

Woher stammt das #Glyphosat in unseren Flüssen? 🤔 👉 Spannende DLF-Reportage 📻 über eine tatsächlich spannende Forschungsfrage. Denn: die #Landwirtschaft 🚜 ist offenbar nicht die (Haupt-)Verursacherin.

Humboldt-Universität zu Berlin @humboldtuni.bsky.social · last yr.

🫧 #WirSindBUA: Die @berlinualliance.bsky.social hat wasserbezogene Risiken des Klimawandels zu einem ihrer Forschungsschwerpunkte gemacht, u. a. mit der Einstein Research Unit „CliWaC“. #HU-Prof. Dr. Tobias Krüger spricht über die bisherigen Forschungserkenntnisse 👉 www.hu-berlin.de/de/pr/wir-si...

Bartosz Bartkowski @bartoszbartk.com · last yr.

Really cool and informative paper by Fabian Klebl and others on farmers' preferences for where to locate hedges or wildlife strips. Highly recommended (only wrinkle for me: no German case study😕). #biodiversity #agriculture www.sciencedirect.com/science/arti...

Screenshot of paper "Connecting habitats in European agricultural landscapes: Farmers' spatial preferences for linear wildlife corridors" by Klebl, Rhodes, Häfner and Piorr

Abstract: Habitat fragmentation in agricultural landscapes threatens biodiversity. Enhancing landscape connectivity across
cultivated areas requires a thorough understanding of farmers’ spatial considerations and their willingness to
create semi-natural habitats. We therefore conducted a spatial choice experiment with farmers from ten European
countries to assess their preferences for placing linear wildlife habitats (hedgerows and wildflower strips) at
the field scale under different scenarios, as well as the role of farm and personal factors. A total of 471 responses
were analysed using multinomial logistic regression and generalised linear mixed models. The results indicate
that landscape conditions, including field shape, slope, soil quality, and pre-existing landscape features, exert a
significant influence on farmers’ decisions, as do the size of machinery, cultural regions, attitudes towards
biodiversity, and type of intervention. On the other hand, no statistical significance was found for other variables.
In general, farmers’ choices were driven by a desire to minimise disturbance to field work, optimise
productivity, increase biodiversity, and address specific environmental challenges. The insights into farmers’
decision-making from this study can inform ecological network planning to reduce transaction costs by preselecting
likely adopters, and to mitigate resistance and lower financial compensation by identifying best-fit
options aligned with farmers’ practices. Integrating these findings into geospatial models could improve predictions
of the impact of spatially targeted biodiversity conservation strategies on landscape composition and
future biodiversity trends in agricultural areas.

Philippe Rufin @philrufin.bsky.social · last yr.

Return of the good times: the Earth Observation Lab of @humboldtuni.bsky.social has joined Bluesky: Follow @humboldteolab.bsky.social for all things terrestrial remote sensing and geospatial at large!

C. Jänicke @cjaenicke.bsky.social · 2y ago

Our project released one of our milestones; a harmonized database of field-level land use data for almost all countries of the EU with a temporal coverage of up to 20 years. You can find it here: zenodo.org/records/1423...

This link will take you to a page that’s not on LinkedIn

lnkd.in

Matt Betts @mattbetts42.bsky.social · 2y ago

My daughter sent me this and I think it’s kind of funny/true

C. Jänicke @cjaenicke.bsky.social · 2y ago

🚜 Wem gehört das Land? 🌾 (1/2) In unserem neuesten Policy Brief werfen Alfons Balmann, Daniel Müller und ich einen genaueren Blick auf das landwirtschaftliche Bodeneigentum in Brandenburg. Unsere Analyse zeigt: Der Boden gehört vielen – eine breite Streuung des Eigentums ist zu beobachten.

C. Jänicke @cjaenicke.bsky.social · 2y ago

Who owns the agricultural land, and how concentrated is land ownership? Knowledge about this is minimal, although being at the center of heated debates. This motivated us to examine land ownership structures for Brandenburg in detail. Read up on our results here: doi.org/10.1007/s104...

Revealing agricultural land ownership concentration with cadastral and company network data - Agriculture and Human Values

In many high-income countries, agricultural land is highly concentrated in a few hands, but detailed knowledge of ownership structures is limited. We examined land ownership structures and agricultura...

doi.org

ploeg @ploeg.bsky.social · 2y ago

Africa's population centers are relatively regional and dense, and will likely continue to be so. Whatever infrastructure issues they will have in the future will almost certainly be the same ones they have had for decades, only more so. (Map shows projected population centers in 2050.)

Estimated population density by 2050, with five centers called out: Coastal West Africa, 287 million, Great Lakes Region, 132 million, Nile Delta, 85 million, Ethiopian Highlands, 70 million, Mediterranean Coast, 63 million

C. Jänicke @cjaenicke.bsky.social · 2y ago

Are you interested in whether field size increases with farm size? Take a look at this preprint: doi.org/10.31220/agr... We inverted the question to see if farm sizes can be estimated using field sizes, which are more commonly known. We find a positive relationship, but high uncertainties

C. Jänicke @cjaenicke.bsky.social · 2y ago

New study out on the relationship crop rotation diversity and landscape diversity and biophysical characteristics. Our study indicates a spatial trade-off between crop rotations and landscape diversity. Led by authors from Josepha Schiller et al. from @zalf.bsky.social doi.org/10.1007/s109...

Higher crop rotational diversity in more simplified agricultural landscapes in Northeastern Germany - Landscape Ecology

Context Both crop rotational diversity and landscape diversity are important for ensuring resilient agricultural production and supporting biodiversity and ecosystem services in agricultural landscape...

doi.org