E-Dissertationen: E-Dissertationen: Recent submissions
Now showing items 561-580 of 1166
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Resilience, collapse and reorganization of a rangeland socio-ecological system in South Africa
(2016-05-24)Communal rangelands in semi-arid areas are complex socio-ecological systems (SES). Their complexity arises from non-linear feedbacks between the social- and the ecosystem. To understand the social system requires tackling ... -
Economics of Land Degradation, Sustainable Land Management and Poverty in Eastern Africa: The Extent, Drivers, Costs and Impacts
(2016-05-24)Land degradation – defined by the Economics of Land Degradation (ELD) initiative as a “reduction in the economic value of ecosystem services and goods derived from land” – is a serious impediment to improving rural livelihoods ... -
Influence of body condition and dietary energy supply on lipolysis, ketogenesis and immune system of periparturient dairy cows with special regard to dipeptidyl peptidase-4
(2016-07-21)The increased energy requirements and the decreased dry matter intake during late gestation and early lactation, in particular relative to the requirement, cause a catabolic state in the dairy cow, characterized by a ... -
Public Services, Social Protection, and Poverty: Evidence from Indonesia
(2016-04-25)Although global poverty reduction strategies have achieved some positive results, 1.2 billion people still live in extreme poverty. Two principal strategies are commonly used to tackle poverty: the provision of public ... -
Assessing the Role of Trade and Reserve Cooperation in the Food Price Dynamics: Indonesia in the Regional and Global Economic Architecture
(2016-04-25)The dissertation discusses the potential roles of trade and food reserve cooperation among countries in pursuing more stable food prices, with a special focus on Indonesia. The study starts by analyzing food price movements ... -
Fluorescence-based systems for detection of abiotic stresses on horticultural crops
(2016-05-10)The main objective of this thesis was to assess the impact of economically important abiotic stresses on the plant physiology using non-destructive fluorescence indices, and to evaluate the potential use of the sensor ... -
Potential of organic manures in rainfed lowland rice-based production systems on sandy soils of Cambodia
(2016-04-25)Rainfed lowland rice is the dominant food crop in the low-input agricultural systems of Cambodia. The main production area is characterized by sandy soils with low contents in nitrogen, phosphorus and organic matter, as ... -
Streamwater transit time distributions at the catchment scale: constraining uncertainties through identification of spatio-temporal controls
(2016-04-08)Precipitation water traveling through a catchment takes faster and slower flow paths to reach the outlet. The knowledge about the distribution of relevant flow paths in a catchment and their respective transit times of ... -
Pastoral Practices, Economics, and Institutions of Sustainable Rangeland Management in Kenya
(2016-04-08)Rangelands contribute greater value than is generally acknowledged. The ecosystems provide a significant portion of the world’s biodiversity and culturally diverse habitats and are also of great ecological and economic ... -
Untersuchungen zur Steuerung und Kontrolle der Vermikompostierung von organischen Abfällen
(2016-03-29)Die Abwasserbehandlung muss die Aufgaben der Abwasseraufbereitung und der hygienisierenden Behandlung der Feststoffe erfüllen. Besonders in Wassermangelgebieten und dünn besiedelten Regionen bietet sich darüber hinaus die ... -
Generation, enrichment and characterization of bioactive oligosaccharides and peptides from milk
(2016-03-22)Milk is considered to be a rich and one of the most important sources of bioactive compounds containing various milk-borne biologically active constituents or precursor substances for bioactive components. The present work ... -
Interpretation of Aerial Images with Learned Graphical Models
(2016-02-16)In this thesis we present a new approach for image interpretation of aerial images using learned graphical models.<br /> The approach uses a region based hierarchical feature adjacency graph. This contains homogeneous ... -
Genetic and Physiological Analyses of the Tolerance Mechanisms to Ferrous Iron Toxicity in Rice (Oryza sativa L.)
(2016-04-20)Rice is a widely consumed staple food for more than half of the world population. Iron (Fe) toxicity is a major nutrient disorder affecting rice production. The understanding of the genetic and physiological basis of Fe ... -
Fahrspur- und Routenplanung für teilautonome, GNSS-gestützte Landmaschinen
(2016-02-19)Die Entwicklungen in der Landwirtschaft sind durch Automatisierung und Informationstechnologie geprägt. Parallelfahrsysteme sind zu einem wichtigen Werkzeug geworden, um die Maschine mit einer Spurgenauigkeit von wenigen ... -
Endocrine activity of adipose tissues as influenced by energy intake in the periparturient cow
(2016-02-09)With the onset of lactation, dairy cows have to mobilize body reserves, mainly in form of fat, to cover the energy output via milk. Homeorhetic adaptations, achieved via the orchestrated actions of hormones, are necessary ... -
Identification of candidate genes for porcine meat quality and investigation of effects of sulforaphane on porcine satellite cells
(2016-01-21)Meat quality has received more and more customer's attention. Muscle growth rate is closely related with the efficiency of pig production. Meat quality and muscle growth are two important issues in pig production. The ... -
Use of Biogenic Volatile Organic Compounds to assess the Health Status of Tomato Plants (Solanum Lycopersicum) cv. “Moneymaker”
(2016-02-16)The goal of the present study is to test if tomato biogenic volatile organic compounds (BVOC) can be used as an early stress indicator. In this study, influences of drought and biotic stresses on BVOC emissions were ... -
Sensing the response of sugar beet and spring barley to abiotic and biotic stresses with proximal fluorescence techniques
(2016-01-22)The aim of these studies was to evaluate the potential of non-destructive fluorescence techniques for the detection and differentiation of abiotic and biotic stress situations. For this purpose, sugar beet cultivars were ... -
Global Value Chains and the Role of Innovation for Sustainable Palm Oil: An International Bioeconomy Analysis for Malaysia
(2016-01-22)Palm oil constitutes approximately one-third of the 130 million tonnes of major vegetable oils and fats consumed annually worldwide. The use of bio-based materials in palm oil production and the potential to achieve a ... -
Identification of Relevant Patterns in Spectral Signatures
(2016-01-04)For Plant Phenotyping, non-invasive measurements of early stress processes in plants and the quantification of soil parameters with hyperspectral sensors are of particular importance, but relevant information is often ...
