Introduction: In Malaysia, excessive nutrients from livestock waste management systems are currently released to the environment. Particularly, large amounts of manure from intensive pig production areas are being excreted daily and are not being fully utilised. Alternatively, the excess manure can be applied as an organic fertiliser source in neighbouring cropping systems on the small landholdings of the pig farms to improve soil fertility so that its nutrients will be available for crop uptake instead of being discharged into water streams. Thus, there is a need for better tools to analyse the present situation, to evaluate and monitor alternative livestock production systems and manure management scenarios, and to support farmers in the proper management of manure and fertiliser application. Such tools are essential to quantify, and assess nutrient fluxes, manure quality and content, manure storage and application rate to the land as well as its environmental effects. Several computer models of animal waste management systems to assist producers and authorities are now available. However, it is felt that more development is needed to adopt such models to the humid tropics and conditions of Malaysia and other developing countries in the region. Objectives: The aim is to develop a novel model to evaluate nutrient emission scenarios and the impact of livestock waste at the landscape or regional level in humid tropics. The study will link and improve existing models to evaluate emission of N to the atmosphere, and leaching of nutrients to groundwater and surface water. The simulation outputs of the models will be integrated with a GIS spatial analysis to model the distribution of nutrient emission, leaching and appropriate manure application on neighbouring crop lands and as an information and decision support tool for the relevant users.
The project aims at achieving a better understanding of the processes that drive or limit the response of grassland systems in a world of increasing atmospheric pCO2. We will test the hypothesis that the previously shown increase in below-ground allocation of C under elevated pCO2 provides the necessary energy excess and will stimulate free-living N2 fixers in a low N grassland environment. The project thus aims at assessing the occurrence and importance of free-living N2 fixers under elevated pCO2 and identify the associated microbial communities involved in order to better understand ecosystems response and sustainability of grassland systems. This project had the last opportunity to obtain soil samples from a grassland ecosystem adapted to long-term (10 year) elevated atmospheric pCO2 as the Swiss FACE experiment. The project aims to identify the relevant components of free-living diazotrophs of the microbial community using 15N stable isotope - DNA probing.
Das Geoportal Hamburg ist das zentrale Kartenportal der Stadt Hamburg. Es enthält alle verfügbaren Geodaten der Hamburger Verwaltung in der stets aktuellen Version. Die Daten werden hierbei durch die einzelnen Fachbehörden gepflegt und über die Urban Data Platform, der zentralen Datendrehscheibe der Stadt veröffentlicht. Es stehen so mehr als 500 Datensätze verschiedener Kategorien zur Verfügung sowie zahlreiche Werkzeuge zum Suchen, Zeichnen, Messen oder Drucken. Die technische Basis des Geoportals ist die Opensource-Software „Masterportal“ die vom Landesbetreib Geoinformation und Vermessung entwickelt und von zahlreichen anderen Städten und Kommunen genutzt und in Zusammenarbeit gepflegt und weiterentwickelt wird.
Dieser WebMapService (WMS) stellt die meisten der im Hamburger Liegenschaftskataster vorkommenden, heute zum Teil historischen, Bezugssysteme und deren zugehörige Abbildungen für Kartenwerke dar. Zzt. sind folgende Gitternetze verfügbar (Bezugssystem mit Abbildung): * DHDN mit GK Maßeinheit Meter Bezugsmaßstab 1: 1000 * ETRS89 mit UTM Maßeinheit Meter Bezugsmaßstab 1: 1000 * Lokales System Hamburg mit Ebenenabbildung In den Maßeinheiten Meter und Fuß und den Bezugsmaßstäben 1: 200, 250, 500, 1000, 4000 Zur genaueren Beschreibung der Daten und Datenverantwortung nutzen Sie bitte den Verweis zur Datensatzbeschreibung.
Today noise still belongs to the most concerned environmental pollutants. This is an essential societal problem, and-transportation is seen as the primary source. Accepting mobility as a basic human need and as an essential precondition for maintaining economic prosperity and wealth in an enlarging Europe, it is clear that the adverse effects of noise must be reduced while facing a continued increase in freight and passenger transport. CALM II aims at the synchronisation and encouragement of European transport noise research through an holistic system approach involving all related research areas. It is designed to facilitate the networking of organisations, the co-ordination of activities and the exchange and dissemination of knowledge. CALM II w ill -optimise research efforts -identify synergies between noise research objectives -identify remaining research needs -check the actual state-of-the-art of noise abatement technologies and support their industrial implementation. By involving the most relevant stakeholders from European and national activities from road, rail, aeronautic and maritime transport as well as complementary research issues such as health and socio-economic aspect, the European Noise Working Groups and the respective European Research Advisory Councils, CALM II will support the European Commission in setting up the agenda for future transport noise research and development. The outcome will be published in the form of 'Community Noise Research Strategy Plans' and the CALM II Consortium will use all modes of modern communication, electronically as well as brochures, papers, presentations and discussions at events to disseminate the results and enhance the Coordination of European noise research. Altogether CALM II will essentially contribute to the vision for 2020 'to avoid harmful effects of noise from all sources and preserve quiet areas.
The Network of Excellence, ECATS, will be a durable and long lasting means of cooperation and communication within Europe, made up of a number of leading Research Establishments and Universities who have expertise in the field of aeronautics and the environment. ECATS's vision is to contribute to the environmental goals of the Vision 2020 for Aeronautics and the Strategic Research Agenda. The overall goals of ECATS are to create a European Virtual Institute for research of environmental compatible air transport; to develop and maintain durable means for cooperation and communication within Europe and to strengthen Europe's excellence and its role of the influence in the international community. The Joint Research Programme will take into account engine technology, alternative fuels, aviations impact on air quality, operational aspects of aviation, and the development of scenarios. Lasting integration will be achieved by joint management and working structures, joint-decision making processes and will be supported through specific integration activities as a common web-based information and communication system, common education, training and exchange programmes, coordinated use of facilities and equipment, dissemination and joint management of innovation. The excellence and commitment of the ECATS partners, many of whom are already linked through their participation in AERONET, will guarantee an effective and durable integration. Support by community funding will be applied for a period of 5 years. FZK is concentrating on activities in the area of airport air quality.
Project summary: The Äspö Hard Rock Laboratory (HRL) in south Sweden is a 3.6 km long and up to 500 m deep tunnel devoted to the exploration of the deep biosphere within continental granitic rocks. Here, a number of deep groundwater seepage sites and associated ponds are accessible, which both exhibit an enormous diversity of aerobic and anaerobic, mainly chemolithotrophic microorganisms. This window into microbiology of the deep biosphere may serve as a model system for the interaction of microbiological processes and mineral precipitation within the continental vein systems. Central part of the project is a multidisciplinary analysis of biodiversity, structure and physiological effects of this chemolithotrophic system to establish specific signatures for tracing deep biosphere communities in continental settings. Several proxies will be used as a basis for modelling of biomass fluxes in the upper continental crust. Vein minerals, as potential archives for fossil deep biospheres, will be investigated to test the application of the results for interpretation of the fossil record.
Zielsetzung und Anlass des Vorhabens: Unter dem Düsenstrahlverfahren (DSV) wird eine Bodenvermörtelung verstanden, die je nach Aufgabenstellung als Verfestigungs- oder Abdichtungsmaßnahme dient. Mithilfe eines Schneidstrahls mit Austrittsgeschwindigkeiten > 100 m/s aus Wasser oder Zementsuspension, der auch mit Luft ummantelt werden kann, wird der im Bereich des Bohrlochs anstehende Boden aufgeschnitten bzw. erodiert. Der erodierte Boden wird umgelagert und mit Zementsuspension vermischt, teilweise sogar gänzlich durch Zementsuspension ersetzt. Aktuell werden in Deutschland jährlich Düsenstrahlarbeiten mit einem Gesamtvolumen ca. 250 bis 350 Tausend m3 ausgeführt. Resultierend aus dem Rücklauf werden dabei etwa 220 bis 300 Tausend to Zement eingesetzt und es fallen nach überschlägigen Schätzungen etwa 80 bis 120 % (im Mittel 100 %) des Gesamtvolumens in flüssiger Form (Deponieklasse Abfall) an. Unter der Annahme, dass sich Boden und Zementsuspension also etwa im Verhältnis 1:1 vermischen und der Rücklauf im Mittel so viel Boden und Zementsuspension enthält wie der verfestigte DSV-Körper, werden 50 % der eingesetzten Zementsuspension praktisch ungenutzt entsorgt. Nach Abscheiden gröberer Kornanteile mittels Siebung und Einsatz eines funktionierenden Online-Messsystems zur Bewertung der Wiederverwendbarkeit von Zementsuspensionen beim Düsenstrahlverfahren könnten etwa 50 bis 70 % des Rücklaufs wiederverwendet werden. Dies entspricht also 25 bis 35 % der insgesamt eingesetzten Zementmenge, pro Jahr ca. 55 bis 105 Tausend to Zement in Deutschland - und damit einer Einsparung von ca. 60 Tausend to an spezifischer CO2-Emission. Darüber hinaus würde ein Deponievolumen von bis zu ca. 125 bis 245 Tausend m3 für andere flüssige Abfälle nutzbar sein bzw. nicht benutzt werden.