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Establishment of Teak plantations for high-value timber production in Ghana

Background and Objectives: The project area is located in the Ashanti Region of Ghana / West Africa in the transition zone of the moist semideciduous forest and tropical savannah zone. Main land use in this region is subsistence agriculture with large fallow areas. As an alternative land-use, forest plantations are under development by the Ghanaian wood processing company DuPaul Wood Treatment Ltd. Labourers from the surrounding villages are employed as permanent or casual plantation workers. Within three forest plantation projects of approximately 6,000 ha, DuPaul offers an area of 164 ha (referred to as Papasi Plantation) - which is mainly planted with Teak (Tectona grandis) - for research purposes. In return, the company expects consultations to improve the management for sustainable timber and pole production with exotic and native tree species. Results: In a first research approach, the Papasi Plantation was assessed in terms of vegetation classification, timber resources (in qualitative and quantitative terms) and soil and site conditions. A permanent sampling plot system was established to enable long-term monitoring of stand dynamics including observation of stand response to silvicultural treatments. Site conditions are ideally suited for Teak and some stands show exceptionally good growth performances. However, poor weed management and a lack of fire control and silvicultural management led to high mortality and poor growth performance of some stands, resulting in relative low overall growth averages. In a second step, a social baseline study was carried out in the surrounding villages and identified landowner conflicts between some villagers and DuPaul, which could be one reason for the fire damages. However, the study also revealed a general interest for collaboration in agroforestry on DuPaul land on both sides. Thirdly, a silvicultural management concept was elaborated and an improved integration of the rural population into DuPaul's forest plantation projects is already initiated. If landowner conflicts can be solved, the development of forest plantations can contribute significantly to the economic income of rural households while environmental benefits provide long-term opportunities for sustainable development of the region. Funding: GTZ supported PPP-Measure, Foundation

Eckpunkte des Umweltressorts in einer sich wandelnden internationalen Sicherheitspolitik

Die aktuelle politische Lage erfordert eine Überprüfung und eventuelle (Neu-) Justierung der Politik. Im Juni 2023 hat die deutsche Bundesregierung zudem erstmals eine nationale Sicherheitsstrategie vorgestellt. Der darin integrierte breite Sicherheitsbegriff umfasst den Schutz der natürlichen Lebensgrundlagen als einen elementaren Pfeiler. Die Aktivitäten, Maßnahmen und Ziele des Umweltressorts sind, auch mit und neben anderen Akteuren, im Ressortkreis wie auch auf europäischer/internationaler Ebene somit relevant für die Sicherheit und die Umsetzung der Strategie. Hieraus ergibt sich Forschungsbedarf, um z.B. eine umweltgerechtere, nachhaltige Sicherheitspolitik bzw. eine krisenpräventivere Umwelt- und Entwicklungspolitik zu gestalten und konkrete Möglichkeiten zur Umsetzung der Ziele der nationalen Sicherheitsstrategie und des immanenten breiten Sicherheitsbegriffes durch die Umweltpolitik in Deutschland aufzuzeigen. Die Analyse von drei noch auszuwählenden Themenfeldern wird abklären, in welchen konkreten Bereichen welche nationalen politischen Maßnahmen in Hinblick vor allem auf die Zuständigkeiten des BMUV auf internationaler Ebene am effektivsten verhindern können, dass 1) Konflikte zu Umweltzerstörung beitragen, 2) Umweltzerstörung zu Konflikten beiträgt und 3) Umweltschutzmaßnahmen zu Konflikten beitragen. Die Erkenntnisse und Herausforderungen sollen mit den Akteuren reflektiert und deren Austausch ermöglicht werden, um eine kohärente Politikgestaltung im Hinblick auf die Ziele zu fördern. Dabei sollen auch gute und schlechte Praxisbeispiele erfasst werden und in die Prozesse einfließen.

Use of scavengers in the pretreatment of lignocellulosic biomass for improved chemicals production

Combined production of fuels and chemicals from wood This project examines an innovative approach for pre-treating wood in order to produce fuels and chemicals. In this approach, the researchers combine hot water treatment with so-called radical scavengers. Background Biofuels from wood have economic and ecological advantages as compared to fuels from corn starch and sugar cane (costs, availability, no conflict with food production). However, it is much more difficult to transform wood into biofuels. This is because the components of wood-cellulose, hemicelluloses and lignin-are strongly interwoven to protect the plant against external forces, in particular. In the production of biofuels, this impedes the enzymatic degradation of cellulose and lignocellulose into their respective sugars, which can subsequently be fermented to produce, for example, bio-ethanol. Therefore, it is necessary to pre-treat the wood in order to break up its structure and improve the enzymatic access. Aim One possible treatment of biomass would be to dissolve it in hot water, but this is hampered by cross-linking reactions of emerging lignin fragments. So-called 'radical scavengers' can stop these undesired reactions and make the wood much more soluble. This procedure is aimed at achieving, on the one hand, a cellulose fraction with improved enzymatic access and, on the other hand, a high-quality lignin fraction. The latter serves as a starting material for the production of aromatic chemicals. Significance The examined approach is aimed at producing fuels and aromatic chemicals which are today still gained from petrochemical resources. This opens up new avenues for gradually replacing fossil oil with biomass.

Humus management of arable soils in a water protection area

Recent legislation (Cross Compliance, Soil Protection Act of Germany) has forced farmers to keep the level of soil organic carbon (SOC) in their arable soils within certain limits. In the region Cologne/Bonn, an unfavourable constellation of factors (low cattle density, intensive soil tillage etc.) resulted in low contents and stocks of soil organic carbon (SOC). Thus, the farmers are challenged to increase the humus content of their soils. However, the rapid achievement of this objective may conflict (i) specifically with the interests of the local waterworks, and (ii) generally with the environmental targets of the European Community Nitrate Directive: Within Nitrate Vulnerable Zones, application rates of organic manures are restricted to avoid diffuse water pollution from nitrate. Against this background, our project aims at optimizing a system of soil use and management, that (i) assures an adequate humus support and sustainable soil fertility, and that (ii) minimizes the pollution of groundwater. The experiments include (i) quantifying the spatial heterogeneity of various soil parameters (Corg, Ntotal, Nmin, texture, nutrients) within arable fields in order to assess the possibility of a site-specific management; (ii) repeated sampling at selected sites in order to quantify C and N dynamics (incl. nitrate leaching) under different management options; (iii) spiking of soils with 15N in order to detect the fate of fertilizer N; (iv) modelling C and N dynamics for selected fields on the basis of long-term management data.

FP6-SUSTDEV, Co-ordination Action to define new research lines on Life- Cycle Analysis for sustainability (CALCAS)

LCA approaches are part of the broader field of sustainability assessment often connected to different disciplines. To increase the efficacy of sustainability decision making, LCA is to take into account broader externalities, broader interrelations and different application/user needs with often conflicting requirements (dynamic models; integration of environmental, economic, and social aspects; accessibility and user friendliness, etc). Roughly, development should be oriented to: - 'deepening', to improve reliability and usability by more adequately incorporating empirical mechanisms - 'broadening', to improve the significance, by expanding the scope of sustainability impacts and better linking to neighbouring models - 'leaping forward' by a revision/enrichment of foundations, through the crossing with other disciplines for sustainability evaluation. CALCAS develops analysis and development along two lines: 1 science framework; 2 user needs (Industry, Research organisations, Government, Consumers, NGOs); the results, are crossed to draw up mid- long-term research lines and road maps, including measures for implementation. Advanced results will often not be in line with the current ISO14040 series definitions and requirements on LCA, creating a need for reformulation. Partnership combines LCA 'producers' and 'users' and involves, with different responsibilities, a significant and highly qualified part of European scientists. Thus, the project promotes the networking both 'cross', among the scientific sectors, and 'vertical' between them and users. Expert working groups, cross-fertilisation workshops, and an open consultation of all scientific sectors and users, based on a Blue Paper combining intermediate proposals are inputs to the final results, both as described models and tools and as research tasks to be accomplished. They also promote dissemination and joint actions for training, knowledge exchanges and common projects. Prime Contractor: Ente per le Nuove Tecnologie, l'Energia elL'Ambiente; Roma; Italy.

Begleitforschung Landschaftsraum Kronsberg

Ziel der Arbeit ist es, die Akzeptanz des im Zuge der EXPO neugeschaffenen Landschaftsraumes Kronsberg zu untersuchen. Von wem wird die Landschaft genutzt? Welche Rolle spielt das 'Naturerleben' im Kontext des Verhaltens in der Landschaft? Treten Konflikte auf zwischen Naherholung, Landwirtschaft und Naturschutz? Vorgehensweise: Untersuchungsdesign: Trend, Zeitreihe.

Integratives nachhaltiges Wildtier-management im Biosphärenpark Wienerwald

Wildtiere (Arten, Populationen, Individuen, Lebensräume, genetische Vielfalt) werden neben der Jagd von vielen anderen Landnutzungsaktivitäten beeinflusst, die sich im Wildlebensraum vielfach überlagern und oftmals miteinander konkurrieren. Insbesondere in Mehrfachnutzungs-Kulturlandschaften, wie dem Biosphärenpark Wienerwald, können die resultierenden Wechselwirkungen zwischen den Lebensraumansprüchen von Wildtieren, jagdlichen Nutzungsinteressen und anderen Landnutzungsansprüchen oftmals zu Konflikten führen, die der nachhaltigen Erhaltung heimischer Wildtierarten und ihrer Lebensräume, der Nachhaltigkeit der beteiligten Landnutzungen und einer nachhaltigen regionalen Entwicklung insgesamt abträglich sein können. Sektorale Nachhaltigkeitsansätze alleine sind unzureichend und können sogar unbeabsichtigte negative Auswirkungen auf andere Landnutzungen und auf das betreffende Ökosystem haben. Der nachhaltige Umgang mit Wildtieren kann letztlich nur gelingen, wenn alle im Wildlebensraum agierenden Nutzergruppen sich der Auswirkungen ihrer Tätigkeiten auf die Ressource 'Wildtier' sowie auf die jeweils anderen Nutzergruppen bewusst sind. Am Beispiel von 'Wildtieren und Jagd' wurden daher im Biosphärenpark Wienerwald modellhaft Konzepte, Inhalte und Instrumente für eine integrative, d. h. sektorübergreifend abgestimmte Nachhaltigkeitsbeurteilung mehrerer Landnutzergruppen entwickelt. Mittels angewandter und partizipativer Forschungsmethoden (Experteninterviews, breite Nutzerbefragungen, projektbegleitende Partizipation) wurden zentrale Schnittstellen (Antagonismen, Synergiepotenziale) zwischen Wildtieren, Jagd und weiteren regionalen Landnutzungen identifiziert, analysiert und bewertet. Als zentrales Ergebnis liegen sektorübergreifend abgestimmte Sets von Prinzipien, Kriterien und Indikatoren für ein integratives nachhaltiges Wildtiermanagement im Biosphärenpark Wienerwald vor. Die Bewertungssets dienen der Selbstbewertung wesentlicher regionaler Nutzergruppen (Forstwirtschaft, Landwirtschaft, Jagd, Freizeit- und Erholungsmanagement) und ermöglichen es diesen, jeweils eigene Einflussmöglichkeiten auf die nachhaltige Erhaltung von Wildtierarten, deren Lebensräumen und eine nachhaltige Jagd selbst zu überprüfen. Nachhaltigkeitsanforderungen anderer Nutzergruppen wurden dabei jeweils berücksichtigt. Somit wurde am Beispiel der stark vernetzten Thematik 'Umgang mit Wildtieren' erstmals der Schritt von der rein sektorbezogenen hin zu einer sektorübergreifend abgestimmten Erfassung der Nachhaltigkeit vollzogen. Weiters wurden Empfehlungen für ein integratives nachhaltiges Wildtiermanagement sowie für ein diesbezügliches Monitoring ausgearbeitet. Die Projektergebnisse sollen dazu beitragen, Wildtiere und deren Management möglichst konfliktfrei in eine nachhaltige Landnutzung im Biosphärenpark Wienerwald zu integrieren. Die Vollversion des Endberichtes samt Anhängen ist als Download-Publikation auf der Homepage der Österreichischen Akademie der Wissenschaften

Nomades entre marginalisation, entrepreneuriat et conflits. Strategies des eteveurs mobiles du sud du Maroc face aux bouleversements du contexte pastoral et aux imperatifs d'un pastoralisme durable (FRA)

Reducing the conflict between cormorants and fisheries on a pan-European scale (REDCAFE)

The purpose of the REDCAFE project is to synthesise current Cormorant/fisheries information and to identify and evaluate methods of reducing the current Europe-wide conflict between conservationists and fisheries interests. It will bring together stakeholders (commercial/recreational fisheries and bird conservation organisations, fisheries scientists and avian ecologists from over twenty countries) to discuss and report these issues in a rigorous, co-ordinated and equitable manner. Available information on Cormorant conflicts with fisheries and on those aspects of Cormorant ecology leading to such conflicts, will be synthesised. Potential management tools will be identified and evaluated (including efficacy and cost-effectiveness) and a Multiple Criteria Decision Model will be developed and applied to a specific conflict case study. Full information will be disseminated at the local, national and European level.

The ecology of the wild boar Sus scrofa near conservation areas

In strict nature reserves and core zones of protected areas hunting and forestry operations are often restricted or banned. However, regarding the management of Wild boar, such hunt-free zones are discussed controversially and can lead to conflict. Hunters whose areas border no-hunting zones (and who have to reimburse farmers for crop damages caused by Wild boar) are concerned that the boars may evade effective population management by staying within the limits of the no-hunting zone, and farmers fear increased crop damage in the surroundings of such areas. Some conservationists are also concerned because Wild boars increasingly root protected habitats and can cause damage to rare plant assemblies. The three-year project Wild boar problem in the vicinity of protected areas by the Game Research Institute (Wildforschungsstelle) at the Centre for Agriculture Baden-Württemberg (LAZBW) aims at investigating if and how no-hunting zones might affect Wild boar activity, movement patterns, home range size, and habitat use, as well as crop damage caused by boars, by comparing these aspects between hunting-free zones and unprotected areas. Although there have already been a number of telemetry studies on Wild boar, including space use in the context of hunting activity, to date there is no study that has specifically investigated spatial and ecological aspects in and around protected areas. My dissertation Ecology of Wild boar Sus scrofa in the vicinity of protected areas is being carried out within the scope of the Game Research Institutes project and apart from the aims outlined above, further aspects of Wild boar ecology will be investigated, especially the role of Wild boar as bio-engineer and habitat creator for other species vs. unwanted damages at protected sites. Twenty-seven Vectronic GPS-GSM satellite collars with integrated activity sensors are available to tag Wild boars in three study areas: the non-protected Altdorfer Forest near Aulendorf with regular hunting activity and forestry, the nature reserve Wurzacher Ried with its ca. 700 ha core zone that is a strict reserve with no human activity, and the Biosphere Reserve Swabian Jura, especially in the surroundings of the former military training area near Münsingen and the 170 ha no-usage-area Föhrenberg.

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