Environmental Controls On The Production And Export Of Dissolved Organic Carbon In An Upland Peat Catchment
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Environmental Controls On The Production And Export Of Dissolved Organic Carbon In An Upland Peat Catchment
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Author : Joanna Mary Clark
language : en
Publisher:
Release Date : 2005
Environmental Controls On The Production And Export Of Dissolved Organic Carbon In An Upland Peat Catchment written by Joanna Mary Clark and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
The Impact Of Climate Change On European Lakes
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Author : Glen George
language : en
Publisher: Springer Science & Business Media
Release Date : 2009-11-27
The Impact Of Climate Change On European Lakes written by Glen George and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-11-27 with Science categories.
In this book, scientists from eleven countries summarize the results of an EU project (CLIME) that explored the effects of observed and projected changes in the climate on the dynamics of lakes in Northern, Western and Central Europe. Historical measurements from eighteen sites were used to compare the seasonal dynamics of the lakes and to assess their sensitivity to local, regional and global-scale changes in the weather. Simulations using a common set of water quality models, perturbed by six climate-change scenarios, were then used to assess the uncertainties associated with the projected changes in the climate. The book includes chapters on the phenology and modelling of lake ice, the supply and recycling of nitrogen and phosphorus, the flux of dissolved organic carbon and the growth and the seasonal succession of phytoplankton. There are also chapters on the coherent responses of lakes to changes in the circulation of the atmosphere, the development of a web-based Decision Support System and the implications of climate change for the Water Framework Directive.
Dynamics And Biogeochemistry Of River Corridors And Wetlands
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Author : A. Louise Heathwaite
language : en
Publisher:
Release Date : 2005
Dynamics And Biogeochemistry Of River Corridors And Wetlands written by A. Louise Heathwaite and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Biogeochemistry categories.
The Controls On Concentrations And Fluxes Of Gaseous Dissolved And Particulate Carbon In Upland Peat Dominated Catchments
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Author : Julian J. C. Dawson
language : en
Publisher:
Release Date : 2000
The Controls On Concentrations And Fluxes Of Gaseous Dissolved And Particulate Carbon In Upland Peat Dominated Catchments written by Julian J. C. Dawson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.
Drivers Of Environmental Change In Uplands
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Author : Aletta Bonn
language : en
Publisher: Routledge
Release Date : 2009-01-13
Drivers Of Environmental Change In Uplands written by Aletta Bonn and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-01-13 with Business & Economics categories.
Addressing policy related issues, providing up-to-date scientific background information and laying out pressing land management questions, this interdisciplinary volume identifies and discusses key directions of environmental change in uplands, as well as providing an outlook into future management and conservation options responding to these changes.
Exploring How Land Use May Influence The Export Composition And Reprocessing Of Dissolved Organic Carbon In Peat Rich Catchment Drainage
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Author : Ying Zheng
language : en
Publisher:
Release Date : 2017
Exploring How Land Use May Influence The Export Composition And Reprocessing Of Dissolved Organic Carbon In Peat Rich Catchment Drainage written by Ying Zheng and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with Carbon categories.
Peatland Biogeochemistry And Watershed Hydrology At The Marcell Experimental Forest
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Author : Randall Kolka
language : en
Publisher: CRC Press
Release Date : 2011-02-22
Peatland Biogeochemistry And Watershed Hydrology At The Marcell Experimental Forest written by Randall Kolka and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-02-22 with Nature categories.
The Marcell Experimental Forest (MEF) in Minnesota serves as a living laboratory and provides scientists with a fundamental understanding of peatland hydrology, acid rain impacts, nutrient and carbon cycling, trace gas emissions, and controls on mercury transport in boreal watersheds. Its important role in scientific research continues to grow as t
Chemical Export To River Systems From The Critical Zone
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Author : Carl I. Steefel
language : en
Publisher: Frontiers Media SA
Release Date : 2021-11-30
Chemical Export To River Systems From The Critical Zone written by Carl I. Steefel and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-11-30 with Science categories.
The Wetlands Handbook 2 Volume Set
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Author : Edward Maltby
language : en
Publisher: John Wiley & Sons
Release Date : 2009-07-23
The Wetlands Handbook 2 Volume Set written by Edward Maltby and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-07-23 with Technology & Engineering categories.
Forty-two chapters by international experts from a wide range ofdisciplines make The Wetlands Handbook the essential toolfor those seeking comprehensive understanding of the subject. Adeparture from more traditional treatises, this text examinesfreshwater wetland ecosystem science from the fundamentals toissues of management and policy. Introductory chapters address the scope and significance ofwetlands globally for communities, culture and biodiversity.Subsequent sections deal with processes underpinning wetlandfunctioning, how wetlands work, their uses and values for humansand nature, their sensitivity to external impacts, and how they maybe restored. The text is illustrated by numerous examples,emphasising functional and holistic approaches to wetlandmanagement, including case studies on the wise use andrehabilitation of wetlands in farmed, urban, industrial and otherdamaged environments, highlighting the long-term benefits ofmultiple use. The Wetlands Handbook will provide aninvaluable reference for researchers, managers, policy-makers andstudents of wetland sciences.
Substrate And Enzymatic Controls On Temperate Peatland Carbon Cycling
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Author : Andrew Pinsonneault
language : en
Publisher:
Release Date : 2016
Substrate And Enzymatic Controls On Temperate Peatland Carbon Cycling written by Andrew Pinsonneault and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
"Peatlands only cover ~3% of the globe's terrestrial and fresh water surface and yet they store up to 30% of the global soil carbon (C). As such, the C storage and ecological importance of peatlands are proportionally much greater than their area might suggest. Microorganisms drive organic matter decomposition, and thus C and nutrient mobilization, though the controls on microbial activity remain poorly understood. The overall objective of this thesis was to elucidate the microbial role in organic matter decomposition in temperate peatlands. I explored substrate and microbial-ecological controls, with particular emphasis on extracellular enzyme activity, under both natural climate variability and increased nutrient deposition.Dissolved organic carbon (DOC) serves numerous ecological and chemical functions including acting as a microbial substrate. Through laboratory experiments, the concentration, biodegradability, and intrinsic properties of DOC leached from peat, fresh material, and litter from nine species of ombrotrophic bog vegetation were characterized. Initial DOC concentration and the fraction of biodegradable DOC differed significantly among species and were significantly higher in fresh material than either litter or peat extracts. Vegetation species and degree of decomposition of the parent organic matter are significant controls on microbial substrate quality.Through laboratory and field measurements, temperature and pH were determined to be the common environmental controls on the enzyme-latch mechanism across four biogeochemically different peatland types though site-specific factors such as nutrient availability led to deviations from these patterns. Overall, enzyme activity decreased significantly with depth and showed significant variation over the course of the growing season with a minimum in the spring and a maximum in the summer and fall highlighting the vulnerability of the peatland soil organic C stock to anthropogenic climate warming.Laboratory analysis of samples from a long-term fertilization experiment found significant changes in peat and dissolved matter nutrient stoichiometry and extracellular enzyme activity relative to control following 9 - 14 years of nitrogen (N), phosphorus (P), and potassium (K) fertilization. Results suggest concurrent and counteracting responses to long-term nutrient fertilization with complex interactions among surface vegetation, microbes, and nutrient availability. In particular, the N-inhibition of phenol oxidase activity may partially counteract the effect of enhanced microbial substrate quality on C and nutrient mobilization.Research in this thesis contributes new understanding of the controls on microbial decomposition of organic matter, and ultimately greenhouse gas production and DOC export, in northern peatlands. This work, however, also shows that microbial-ecological relationships are complex and site-specific factors pose problems for incorporating them in ecological models." --