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Impact of Aerosols (Saharan Dust and Mixed) on the East Mediterranean Oligotrophic Ecosystem; Results from Experimental Studies

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889453191 Year: Pages: 207 DOI: 10.3389/978-2-88945-319-1 Language: English
Publisher: Frontiers Media SA
Subject: Science (General) --- Oceanography
Added to DOAB on : 2018-02-27 16:16:45
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Abstract

In oligotrophic environments, dust and nutrient inputs via atmospheric routes are considered important sources of macro-nutrients and micro-trace metals fuelling primary and secondary production. Yet, the impact of these dust inputs on the microbial populations is not fully investigated in the Eastern Mediterranean Sea (EMS). The response of oligotrophic systems to dust inputs, whether as positive or negative feedbacks to autotrophic and heterotrophic production and thus to biogeochemical cycling, is important to examine further. Experimental studies have explored nutrient additions in various combinations to determine the limiting resource to productivity or N2 fixation. Recent experimental studies have applied dust enrichments to bottle or mesocosm incubations of seawater from different oceanic regions. This research topic presents two Eastern Mediterranean dust addition mesocosm experiments using, for the first time, real aerosol additions, pure Saharan dust and mixed aerosols (a natural mixture of desert dust and polluted European particles), as well as other EMS aerosol experimental studies. The Topic includes manuscripts introducing results on: a) the impact of Saharan dust vs mixed aerosols on the autotrophic and heterotrophic surface microbial populations in the EMS, b) the impact of single vs multi-pulses of Saharan dust introduction into the pelagic environment of the EMS and c) other experimental studies of aerosol impacts on the EMS ecosystem.

Progress in Mathematical Ecology

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ISBN: 9783038973126 9783038973133 Year: Pages: 214 DOI: 10.3390/books978-3-03897-313-3 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Ecology --- Physics (General) --- Mathematics
Added to DOAB on : 2018-12-07 09:41:32
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Mathematical ecology is an area of applied mathematics concerned with the application of mathematical concepts, tools and techniques, usually in the form of mathematical models, to problems arising in population dynamics, ecology and evolution. This Special Issue is designed to provide a snapshot of the state of the art in mathematical ecology. Topics of interest are (in no particular order) biological invasions, biological control, ecological pattern formation, ecologically relevant multiscale models, food webs, individual movement and dispersal, eco-epidemiology, evolutionary ecology, agroecosystems, regime shifts and early warning signals, synchronization and chaos. The list is inclusive rather than exclusive, and a few other relevant topics will also be considered.

Assessment and Governance of Sustainable Soil Management

Authors: --- --- ---
ISBN: 9783039214792 9783039214808 Year: Pages: 310 DOI: 10.3390/books978-3-03921-480-8 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology --- Agriculture (General)
Added to DOAB on : 2020-01-30 16:39:46
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The role of soils for achieving the Sustainable Development Goals is multifarious. Soils are the essential basis for food and biomass provision in support of food security (SDG 2) and energy security (SDG 7). Soil carbon sequestration is paramount for climate action (SDG 13). Soil-mediated water purification and retention, nutrient and matter cycling, and soils habitat functions are essential for maintaining ecosystem services and biodiversity (SDG 15). Healthy soils perform well in all these functions simultaneously. However, the globally increasing demand for food, fiber, and bio-based products poses massive challenges to soil health. Minimizing trade-offs between biomass production and soil health requires systemic approaches to assessment and governance of sustainable soil management in agriculture and food systems. It provides interdisciplinary insights into key questions: What are the impacts of agricultural management practices on sustainability targets in specific geophysical and socio-economic contexts? What are the opportunities and risks of future trends such as climate change, digitalization, and emerging technologies for soil management and soil health? How can institutions and governance instruments be improved to enable decision makers to take action on sustainable soil management? The book was initiated in the frame of the National German research program ‘BonaRes—Soil as a sustainable resource for the bioeconomy’, and it is meant to trigger interdisciplinary thinking.

Keywords

conservation agriculture --- crop–livestock interactions --- Syria --- soil health --- agricultural innovation --- arid oasis --- combination of modern and indigenous knowledge --- Driver-Pressure-State-Impact-Response sustainability framework --- bayesian network --- soil functions --- conservation agriculture --- conventional farming --- zero tillage --- environmental zones --- phosphorus --- legal comparison --- governance --- sustainable agriculture --- fertilization --- soil protection --- Germany --- Costa Rica --- Nicaragua --- crop rotation modelling --- spatially explicit --- dynamic programming --- gross income --- carob --- yield --- soils --- desertification --- coffee by-products --- nutrient composition --- N leaching --- production --- so-called organic fertilizer --- ecosystem services --- governance --- institutions --- land --- property rights --- soils --- sustainability --- landowner --- tenant --- rent price --- rent proportion --- yield potential --- sustainable soil management --- soil degradation --- soil functions --- soil framework directive --- soil policy --- soil threats --- contamination --- sealing --- soil compaction --- risk assessment --- soil functions --- soil management --- subsoil --- compaction --- agricultural yields --- soil functions --- societal acceptance --- farmer motivations --- subsoil loosening --- alfalfa --- sustainable soil management --- resource scarcity --- Germany --- ecosystem services --- soil food web --- earthworms --- monitoring --- water infiltration --- agricultural policy --- behavioural studies --- literature review --- soil functions --- soil pressures --- justifying soil protection --- sustainable soil management --- creation ethics --- Laudato si’ --- property rights --- German Constitutional Law --- soil --- ecosystem services --- land management --- soil remediation --- Europe --- soil functions --- agricultural practices --- sustainability assessment --- ecosystem services --- resource use efficiency --- soil policy --- soil governance

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