Publikationen rund um das Thema Permakultur-Landwirtschaft
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117 Publikationen gefunden
Artikel
März 2026
Energy Reports Volume 15, June 2026, 109187
Landscape Research Institute, Czech Republic
L. Janota, J. Weger, J. Knápek, K. Vávrová
Successful energy transition and climate action require accurately dimensioned local renewable energy systems. This study develops a deterministic techno-economic model and an incremental optimisation methodology to evaluate photovoltaic, agrivoltaic and battery storage technologies within energy communities. A 100-member community is simulated using hourly load profiles and both PVGIS-based and real agrivoltaic–agroforestry generation data. Under the NPV=MAX criterion, battery storage is not economically viable and photovoltaic installations reach 17–26% energy self-sufficiency. Under the NPV= 0 criterion, optimal agrivoltaic capacity increases by 60–100%, battery storage becomes deployable, and self-sufficiency rises to 27–45%. Avoided GHG emissions increase from 73.6 tCO₂/year under the NPV-maximisation objective to 122.7 tCO₂/year under the NPV = 0 (break-even) configuration in the simulated 100-member community, clearly demonstrating the environmental benefit of self-sufficiency-oriented sizing. The strong divergence between both optimisation objectives demonstrates that investment intent fundamentally shapes the technical, economic and environmental outcomes of community energy systems. These findings underscore the need for robust pre-project sizing tools to design effective, resilient and low-carbon local energy solutions.
Poster
März 2026
University of Bristol
Fotis Sgouridis, Rose Williamson, Michaela Reay, and Christopher Williamson
Degrading topsoil, declining habitat and biodiversity, climate change and social and political unrest alongside a growing population and demand for food are calling for a sustainable alternative to the current industrialised agricultural systems. Permaculture and agroecology are two potential alternative sustainable food systems that are currently lacking scientific evidence base. This study compared the two alternative management approaches against a conventionally practiced control in terms of their soil fertility, microbial abundance and diversity (via PLFA analysis) and greenhouse gas mitigation potential. The permaculture site comprised of a no-dig, organically amended market garden for vegetable production, while the agroecology site was minimally tilled and organically amended, whereas the control was tilled & fertilised with a legacy of herbicide and pesticide use. Monthly soil sampling and greenhouse gas emission monitoring via closed chambers over a 12-month period assessed the soils biogeochemistry, microbial abundance and greenhouse gas fluxes. Permaculture soils supported the most abundant microbial community, with an annual mean total microbial biomass of 89.92 ± 20.84 µg g-1 (23.23 ± 30.7 µg g-1 and 28.69 ± 30.7 µg g-1, more than the minimally tilled and conventionally managed soil, respectively). The same soils also exhibited more than double soil organic matter content (annual mean 16.87%) relative to the conventional management, alongside a significantly lower proportion of soil organic carbon (SOC) loss as CO2 (1.98%, compared to 7% under conventional management). Surprisingly, nitrous oxide (N2O) fluxes at the conventional site were limited, despite the build-up of the soil nitrate pool during summer, which was attributed to the exceptionally dry soil conditions that prevailed during the year of study, suppressing microbial N2O production. However, the denitrification product ratio (N2O/N2+N2O) was consistently lower under permaculture soils compared with agroecology and conventional soils, an indication of a strong potential for N2O emission mitigation. Seasonal warming during spring further stimulated microbial activity, accelerating nutrient acquisition and carbon turnover, with permaculture no-dig soils maintaining three times greater total soil carbon (0.67 ± 0.02 %, annual mean), suggesting a more stable carbon pool. Overall, this study demonstrates permaculture and agroecology practices, particularly no dig management combined with organic amendments, enhances soil fertility, microbial activity, and carbon retention, indicative of a more balanced food system. Multi-year assessments across contrasting climatic conditions are warranted to reduce the uncertainty of temporal variability in GHG flux dynamics and assess long-term carbon stability under these managements.
Buchkapitel
März 2026
Prathamesh Jadhav, Shryesh Thube, Sakshi Bansode, Janhavi Barbind, Ajay Gawali, Sachin Chaudhari
This study investigates an AI based model to predict crop yields based on soil health monitoring and increasing agricultural productivity through farming. Soil health (determined by factors such as nutrient levels, pH, and organic matter) plays a significant role in crop growth. However, traditional yield prediction methods are often inaccurate and do not account for the interactions between soil, environment, and crop characteristics. This study used machine learning models to analyze soil and environmental data to capture key variables that affect crop performance. The model integrates information from soil samples, weather patterns, and crop history to provide farmers with information to guide crop management decisions. The findings show that AI-based predictions outperform traditional models, given that the data can be tailored to agriculture. This research has important implications for permaculture, allowing farmers to increase yields and reduce input costs while promoting more environmentally friendly agriculture.
Artikel
März 2026
Christophe Gaudry, Estelle Petit, Eric Tannier, Marie-Thérèse Charreyre
Les dérèglements climatiques, l’effondrement de la biodiversité sauvage et cultivée, font peser des risques sur la sécurité alimentaire des populations, et ceci même dans les pays où cette question ne se posait plus. En région stéphanoise, Christophe Gaudry, paysan bio, a entrepris, à son échelle, de renverser cette tendance en diversifiant les variétés cultivées, fruits ou légumes. Il travaille selon des techniques de permaculture et de maraîchage sur sols vivants. Sa ferme ambitionne de devenir une Arche de Noé végétale, où légumes, arbustes à petits fruits et arbres fruitiers se côtoient et participent à une vaste synergie qui bénéficie à l’ensemble des cultures. Parmi les nombreuses espèces cultivées, les courges intéressent particulièrement Christophe Gaudry qui en a cultivé jusqu’à 54 variétés différentes ! Cette étonnante diversité a attiré l’attention de Marie-Thérèse Charreyre, chercheuse au CNRS, rejointe par Éric Tannier, chercheur à l’Inria, qui souhaitent contribuer à la redirection écologique par de la recherche participative. Ainsi est né un projet original associant chercheurs et acteurs de terrain autour de cucurbitacées variées, depuis leur culture jusqu’à leur mise en valeur au travers de créations culinaires réalisées par le pôle Innovation du Centre de Recherche de l’Institut Lyfe, dirigé par Estelle Petit. Ce livre retrace leur aventure commune, en explorant des volets complémentaires de ce projet de recherche : agronomique (de la graine à la récolte des courges), sensoriel (avec la découverte du mode de consommation crue de certaines courges), nutritionnel (avec des analyses sur les sucres, les fibres, les micro-nutriments) et, bien sûr, culinaire (avec des recettes « de tous les jours » et des recettes « gastronomiques »). A l’évidence, la courge est un légume d’avenir !
Artikel
März 2026
University of Sassari
Maria Giovanna Cassa
The article reflects on how permaculture offers a framework for signifying sustainability on a daily basis, focusing on practices and projects carried out by permaculturists in Sardinia. Three ethics of permaculture—earth care, people care, and fair share—emerge as pivotal in driving actions and choices. Projects are modelled on an ecological resilience-oriented model mimicking nature, which allows for structuring the world based on relationships that can address growing environmental concerns. Through ethnographic examples of wheat production and customs among visiting friends, the article illustrates how nature serves as a model for people, merging with local agro-pastoral traditions and claims to island identity. In Sardinia, permaculturists’ ethical orientation towards every living and non-living element of the system combines with local cultural customs, in a shift from agricoltura to agricultura. This alternative ontology based on relatedness blurs the boundaries between human and non-human and between past, present, and future. Caring for humans thus becomes caring for soils, microbes, vegetation, winds, and rain; caring for future generations means fairly sharing the world between humans and non-humans in the present.
Konferenz Artikel
Februar 2026
FiBL France
S. Le Guennic, M. Chomel and M. Trouillard
Agroforestry (AF) applied to fruit trees is promising for helping to cope with major global challenges, such as climate change and biodiversity loss. However, knowledge about such systems takes a very long time to acquire, and mature AF orchards in temperate regions are very scarce.
To circumvent this issue, a mesocosm experiment was created in which a pear tree is accompanied by four different perennial herbaceous plants at varying modalities of density and management. One of the tested hypotheses comes from ’syntropic‘ agriculture, which suggests that intensive use of companion plants at very high density with frequent pruning can be beneficial for plant development and soil health.
Our results overall show that in our (constrained) system, the growth of pear trees is not favored by the presence of companion plants, but that the competition for resources that they trigger can be entirely offset by frequent management (pruning + mulching with the chopped material). Furthermore, mineral nutrition and certain soil functions related to nutrient cycling seem to be enhanced by the presence of companion plants, even though nitrogen appears as a major potential bottleneck.
Artikel
Februar 2026
Inrae
Diana Carolina Ortiz-Vallejo, Vincent Cellier, Violaine Deytieux, Alain Berthier, Antoine Savoie, et al.
Pesticides are widely used in agriculture to protect crops from animal pests, diseases, and weeds, helping to maintain yields under diverse production conditions. However, their widespread and repeated use has led to environmental contamination, biodiversity loss, and growing concerns about human health. While Integrated Pest Management (IPM) and organic farming have sought to reduce pesticide dependency, both approaches still permit pesticide use, and their adoption remains limited due to technical and economic constraints. In this context, we explore the feasibility of a third way: pesticide-free agriculture based on agroecological crop protection (ACP) principles. Drawing from the Rés0Pest experimental network launched in France in 2012, we present ten years of results from nine sites covering a range of pedo-climatic conditions and socio-economic contexts. Rés0Pest implemented cropping systems that excluded all pesticide use, including seed treatments, while maintaining synthetic fertilizer inputs. The systems were co-designed through participatory methods, following a system experiment approach that evaluates the effects of a combination of cropping practices and their interactions on cropping system performance over the long term. Results showed that in pesticide-free systems, it is possible to achieve yields comparable to conventional and higher than organic systems and, in some cases, generate higher net farm income. Pest and pathogen crop damage did not significantly increase over time, although weed management remained a key challenge. These findings suggest that technically and economically viable pesticide-free arable systems are possible under certain conditions, and that new solutions are needed to support their adoption across a wider range of contexts. We discuss implications for research, farming, and policy, and emphasize the need for adaptive experimentation and systemic performance assessment to support agroecological transitions.
Artikel
Februar 2026
Earth 2026, 7(1), 31
Colorado State University, Czech University of Life Sciences Prague, South Eastern Kenya University
Bonface O. Manono, Boniface Mwami
Soil health is the sustained ability of soil to function as a vital ecosystem that supports plants, animals, and humans. Conventional agricultural practices, such as intensive tillage and monocropping, degrade soils by depleting organic matter, causing erosion, and reducing biodiversity. Agroforestry systems, by contrast, mimic natural ecosystems and offer a viable solution to restore and protect this crucial resource. The purpose of this review was to explore agroforestry’s effects on soil health in the context of sustainable agriculture. By restoring and building soil health, the review revealed that agroforestry provides a solution to combat soil degradation, enhance biodiversity, and increase agricultural sustainability. Benefits to soil are diverse and include improving its physical, chemical, and biological aspects, which boosts ecosystem services and resilience. Despite its clear advantages, agroforestry has not been widely adopted. Challenges to adoption include time lag for trees to mature, insecure land tenure and lack of expertise and institutional support. Overcoming these barriers through supportive policies, financial incentives and farmer participatory approaches offers clear pathways towards more resilient and profitable farming systems. This will require site-specific studies to optimize species selection and system designs compatible with local conditions. Long-term agroforestry success is determined by aligning site-specific conditions (soil, slope, climate) with appropriate species selection, expert management, and farmer knowledge. In conclusion, intentionally combining trees and crops provides a powerful solution for building resilient soil ecosystems and ensuring agricultural sustainability.
Artikel
Februar 2026
Hydrologie und Wasserbewirtschaftung
Institut für Wasser und Umwelt (IWU), Karlsruher Institut für Technologie (KIT), Institut für Wasser und Gewässerentwicklung (IWG)
Villinger, Franziska; Yahşi, Doğa; Schroers, Samuel Charles; Zehe, Erwin
Dieser Artikel untersucht das Zusammenspiel von Oberflächenrauheit und Oberflächenabfluss und analysiert das Potenzial von Hecken als Maßnahme zur dezentralen Hochwasserminderung mit Hilfe eines vereinfachten physikalisch-basierten Modells. Untersuchungsgebiet ist das 3,5 km² große Weiherbach-Einzugsgebiet, das sich in einer Lösslandschaft in Südwestdeutschland befindet. Zunächst wird die Rückkopplung der Oberflächenrauheit auf die Abflussbildung auf der Plotskala untersucht, a) an Daten von Freiland-Beregnungsversuchen und b) mit numerischen Experimenten. Abschließend erfolgt eine Analyse der Wirkung von Heckenstreifen auf Einzugsgebietsebene, exemplarisch an der im Untersuchungsgebiet im Juni 1994 beobachteten Sturzflut, in Anlehnung an das Keyline-Design.
Auf einer Fließstrecke von 12 m zeigen die numerischen Experimente eine Reduktion in der Oberflächenabflusswelle von bis zu 9 % auf sehr rauen Oberflächen. Die Simulationen auf Einzugsgebietsebene verdeutlichen, dass 7 Heckenstreifen das Volumen der Oberflächenabflusswelle um 62 % und den Scheitel um 55 % im Vergleich zur Referenzvariante reduzieren können. Die Studie zeigt zum einen, dass bei Rauheits- und/oder Infiltrationswechsel entlang des Hangs eine gekoppelte Betrachtung von Oberflächenrouting und Infiltration zwingend erforderlich ist, zum anderen weist sie nach, dass sich durch den Einsatz solcher Modelle das Potenzial von Hecken zur Hochwasserminderung quantifizieren lässt und sie somit bei der Planung leichter zu berücksichtigen sind.
Artikel
Februar 2026
Universität Hohenheim
Sebastian Gayler, Fasil Mequanint Rettie, Daniela Bendel, Rajalakshmi Dhandapani, S. Morandage,T. Streck
Im Forschungsvorhaben SIGNAL-Teilprojekt E wurde mit Hilfe des Agroforst-Modells XN5-AF untersucht, inwieweit Agroforstsysteme gegenüber Offenland-Ackerbau Vorteile in Bezug auf Ertrag und andere Ökosystemfunktionen (Kohlenstoffspeicherung, Evapotranspiration, Nitratauswaschung, Lachgasemissionen) haben können. XN5-AF ist in das Agrarökosystemmodell Expert-N (XN5) integriert und simuliert Beschattung, Windabschwächung, Wurzelkonkurrenz, und Streufall in Alley-Cropping Agroforstsystemen mit hoher zeitlicher Auflösung. Die Simulation der Interaktion von Baumstreifen mit den Ackerfrüchten wird hierbei über eine Kopplung von Wachstumsmodellen für Ackerfrüchte mit einem Baumwachstumsmodell sowie mit Modulen zum Bodenwasser-, Bodenwärme-, Kohlenstoff- und Stickstoffhaushalt realisiert. XN5-AF wurde anhand der Daten aus den mehrjährigen Versuchen an den SIGNAL-Standorten Dornburg, Forst und Wendhausen kalibriert und getestet, wobei für die Phänologie-Kalibrierung ergänzend Daten des Deutschen Wetterdienstes genutzt wurden, da die standortspezifischen Beobachtungen begrenzt waren. Mit Hilfe des kalibrierten Modells wurden Antwortkurven der Ökosystemfunktionen Evapotranspiration, Nitratauswaschung, Lachgasemissionen und Kohlenstoffspeicherung auf veränderte Randbedingungen in Bezug auf N-Düngergaben (20–150% der Düngergaben in den Versuchen) und Niederschlag (50–150% der gemessenen Werte) generiert. Die Simulationen legen nahe, dass Ertragsdifferenzen zwischen Offenlandanbau und Agroforst-Ackerfläche unter Trockenheit geringer werden. Überschüssiger Stickstoff wird bevorzugt in Nähe der Baumstreifen ausgewaschen oder als Lachgas emittiert. Für Winterweizen und Silomais wurden deutschlandweite (396 Landkreise) Simulationen durchgeführt, um regionale Unterschiede in den Ökosystemfunktionen zu ermitteln. Die Simulationen basierend auf der Bodenkarte BÜK200 und Era5-Land Wetterdaten. Während für Winterweizen deutschlandweit nur geringe Ertragseinbußen auf der Agroforst-Ackerfläche simuliert wurden (ca. –1 bis –4 %), zeigten sich für Silomais deutlich stärkere Ertragsverluste von bis zu –12% in östlichen Regionen. In Bezug auf die Kohlenstoffspeicherung im Boden zeigen die Simulationen für Agroforst in Kombination mit Winterweizen einen leicht positiven Effekt. Für Silomais waren die Effekte in den meisten Regionen gering oder leicht negativ. Nitratauswaschung und Lachgasemissionen folgten weitgehend den Ertragsmustern. Klimaprojektionen (basierend auf bias-korrigierten Klimasimulationen aus dem Kernensemble der EURO-CORDEX und ReKliEs-DE Projekte) zeigen dauerhaft nachteilige Agroforsteffekte auf Silomaiserträge. Für Weizen werden hingegen werden ab ca. 2050 deutlich abnehmende Ertragsverluste prognostiziert, da sich die Beschattung durch Bäume bei steigenden Temperaturen hier zunehmend günstig auswirkt.
Artikel
Februar 2026
Environmental Quality Management, Volume 35, Issue 3, id.e70302, 12 pp.
Arun Kumar K., Jayanthi J., Balkrishna S. Bhople
Agroforestry systems are well known to improve soil health, biodiversity, and mitigate climate change by sequestering soil organic carbon (SOC). Nevertheless, the carbon stabilization and permanency over time under multi-species agroforestry designs are yet to be fully explored. This article presents a bio-inspired spider-web agroforestry design, conceptualized on the basis of radial and spiral geometry of the spider web, to optimize the space, species interactions, and stabilization of carbon in soil. The framework combines various trees and crops in triangular and radially attached forms to further mixed litter inputs, constant rhizodeposition, and improved soil aggregation. To assess its carbon sequestration capability, we integrate empirical data on long-term agroforestry research with a RothC-based soil carbon dynamics modeling framework. The current strategy contrasts with other standard RothC applications, which are designed to be used with systems that are uniform in nature, since a simplified active-slow passive pool structure and parameterization specific to the design is used to model the biologically complex processes that typify spider-web agroforestry. Carbon loadings, decay process, and inter-pool transfer processes were modeled over 20 years with the same climatic and initial SOC conditions in a traditional agroforestry baseline and spider-web setup. The uncertainty in carbon inputs and turnover parameters was taken into consideration in the Monte Carlo simulations carried out in Python. According to model projections, spider-web design will outperform conventional agroforestry in terms of SOC stocks, which are due to better stabilization of slow and passive carbon pools as compared to temporary accumulation of carbon on the surface. The increased potential of spider-web configuration as the best sequestration device can be further supported by statistical analyses and comparative projections. The proposed design is not a fully calibrated biophysical model; it gives a reproducible framework of the relationship between agroforestry spatial design and long-term soil carbon dynamics.
Masterarbeit
Februar 2026
Memorial University of Newfoundland
Onyenwe, Chinenye Lynda
This thesis explores approaches to make food systems more sustainable in North America and Newfoundland and Labrador (NL) using regenerative and permaculture methods, by addressing the growing challenges of soil degradation, climate variability, and dependence on imported food. It includes two main parts: a scoping review of 84 articles (from 1994 to 2024) on permaculture’s contribution to food security in North America and a qualitative study based on twenty semi-structured interviews with farmers, NGOs, and government officials in NL. The scoping review identifies six main themes: soil health and land management, water management, biodiversity, animal integration, energy and built systems, and community and economy, revealing widespread ecological and social benefits but persistent policy and market barriers. The qualitative study identifies how farmers in NL adopt regenerative practices like composting, livestock integration, cover cropping, and biochar application, but is constrained by the Crownland policy, environmental degradation, policy misalignment and limited institutional support. These studies show that practices focused on circular use and regeneration can improve ecological resilience, enable communities, and support local food systems. This connects ideas from the circular economy, agroecology, and political ecology. The thesis suggests practical ways to create policies that fit local needs and promote fairer, more sustainable food systems in NL and beyond.