Biogeochemistry of Forested Catchments in a Changing Environment

Biogeochemistry of Forested Catchments in a Changing Environment
Author: Egbert Matzner
Publisher: Springer Science & Business Media
Total Pages: 532
Release: 2004-07-12
Genre: Nature
ISBN: 9783540209737

The stability of forest ecosystems is affected by changes of environment conditions, like by increasing temperatures, increasing atmospheric CO2 and decreasing deposition rates of nutrients and acidity. This volume integrates the results of long term interdisciplinary ecosystem research at two forested watersheds in Germany with special emphasis on the biogeochemistry of carbon, dissolved organic matter and mineral elements in response to changing environmental conditions and management. Despite the reduction in acidic deposition, forest ecosystems are still threatened by soil acidification, nutrient depletion and eutrophication and criteria of sustainability are not yet achieved. The results highlight the complex interactions between vegetation, animals and soils in terrestrial ecosystems that are triggered by changes in environmental conditions.

Volatile Organic Compounds

Volatile Organic Compounds
Author: Khaled Chetehouna
Publisher: Nova Science Publishers
Total Pages: 0
Release: 2014
Genre: Pollution
ISBN: 9781631178627

Volatile Organic Compounds (VOCs) have anthropogenic and biogenic origins. At the Earth's scale, the natural sources represent a great part of the total VOCs present in the atmosphere but in industrialised regions, anthropogenic ones become the majority due to the various human activities related mainly to chemical industries (liquid fuels, solvents, thinners, detergents, degreasers, cleaners and lubricants). Almost all VOCs have effects on human health and many of them are even carcinogenic. It is also known that the VOCs can affect the central nervous system and may have mutagenic effects. Apart from human health, they also play an important role towards the environment, especially in the atmospheric pollution processes. Indeed, VOCs emissions lead to the promotion of photochemical reactions in the atmosphere (ozone formation, depletion of the stratospheric ozone layer and formation of photochemical smog). The present book gathers and presents some current research from across the world conducted by scientific experts in their fields. In seven valuable contributions, it deals with the emission and the environmental impact as well as the control of the Volatile Organic Compounds.

Volatile Organic Compounds in the Atmosphere

Volatile Organic Compounds in the Atmosphere
Author: Ralf Koppmann
Publisher: John Wiley & Sons
Total Pages: 512
Release: 2008-04-15
Genre: Science
ISBN: 0470994150

Every day, large quantities of volatile organic compounds (VOCs) are emitted into the atmosphere from both anthropogenic and natural sources. The formation of gaseous and particulate secondary products caused by oxidation of VOCs is one of the largest unknowns in the quantitative prediction of the earth’s climate on a regional and global scale, and on the understanding of local air quality. To be able to model and control their impact, it is essential to understand the sources of VOCs, their distribution in the atmosphere and the chemical transformations which remove these compounds from the atmosphere. In recent years techniques for the analysis of organic compounds in the atmosphere have been developed to increase the spectrum of detectable compounds and their detection limits. New methods have been introduced to increase the time resolution of those measurements and to resolve more complex mixtures of organic compounds. Volatile Organic Compounds in the Atmosphere describes the current state of knowledge of the chemistry of VOCs as well as the methods and techniques to analyse gaseous and particulate organic compounds in the atmosphere. The aim is to provide an authoritative review to address the needs of both graduate students and active researchers in the field of atmospheric chemistry research.

Trace Gas Emissions by Plants

Trace Gas Emissions by Plants
Author: Thomas D. Sharkey
Publisher:
Total Pages: 384
Release: 1991
Genre: Science
ISBN:

Many trace gases are exchanged between the atmosphere and the biosphere. Although much research has been published on the photosynthetic exchanges of carbon dioxide, oxygen, and water vapor, this book focuses on the importance of biogenic trace gases on atmosphere chemistry and ecosystem stability. Included are methane and its effect on the radiative properties of the atmosphere, hydrocarbons (isoprene and monoterpenes), and their role in the production of ozone and carbon monoxide. Also covered are sulfur and nitrogen gases, both of which can lead to ecosystem acidification. The biochemistry and physiology of production of these and other gases are investigated. Plant physiologists, ecologists, and atmospheric chemists and modelers will benefit from this book.

Biology, Controls and Models of Tree Volatile Organic Compound Emissions

Biology, Controls and Models of Tree Volatile Organic Compound Emissions
Author: Ülo Niinemets
Publisher: Springer Science & Business Media
Total Pages: 556
Release: 2013-07-08
Genre: Nature
ISBN: 9400766068

Plant-driven volatile organic compound (BVOC) emissions play a major role in atmospheric chemistry, including ozone and photochemical smog formation in the troposphere, and they extend the atmospheric lifetime of the key greenhouse gas, methane. Furthermore, condensation of photo-oxidation products of BVOCs leads to formation of secondary organic aerosols with profound implications for the earth's solar radiation budget and climate. Trees represent the plant life form that most contributes to BVOC emissions, which gives global forests a unique role in regulating atmospheric chemistry. Written by leading experts in the field, the focus is on recent advancements in understanding the controls on plant-driven BVOC emissions, including efforts to quantitatively predict emissions using computer models, particularly on elicitation of emissions under biotic and abiotic stresses, molecular mechanisms of volatile synthesis and emission and the role of emissions in plant stress tolerance.

Biogenic Volatile Organic Compounds and Climate Change

Biogenic Volatile Organic Compounds and Climate Change
Author: Federico Brilli
Publisher: Elsevier
Total Pages: 245
Release: 2024-06-11
Genre: Science
ISBN: 012821077X

Biogenic Volatile Organic Compounds and Climate Change highlights the relationship between climate change and biogenic VOC and the impact they have on each other. Topics include the synthesis and emission of VOC in plants, how they respond to environmental stresses, how sustainable agricultural practices plants can be used to directly impact climate change beyond carbon sequestration, a review of biogenic VOCs as air pollutants, and the impact of biogenic VOC on clouds. This groundbreaking work is essential for anyone in climate change, global warming and cooling, atmospheric chemistry, clouds, fate and transport of chemicals in the atmosphere, air pollution, sustainability or agriculture. - Explains how volatile organic compound (VOC) production and emission in plants can ameliorate the consequences of climate change induced abiotic and biotic stresses - Comprehensively addresses the complex interactions between global warming, atmospheric composition and plant ecology beyond carbon sequestration - Reviews the use of biogenic VOC in sustainability

Essential Oil Research

Essential Oil Research
Author: Sonia Malik
Publisher: Springer
Total Pages: 450
Release: 2019-06-07
Genre: Science
ISBN: 3030165469

This book highlights the advances in essential oil research, from the plant physiology perspective to large-scale production, including bioanalytical methods and industrial applications. The book is divided into 4 sections. The first one is focused on essential oil composition and why plants produce these compounds that have been used by humans since ancient times. Part 2 presents an update on the use of essential oils in various areas, including food and pharma industries as well as agriculture. In part 3 readers will find new trends in bioanalytical methods. Lastly, part 4 presents a number of approaches to increase essential oil production, such as in vitro and hairy root culture, metabolic engineering and biotechnology. Altogether, this volume offers a comprehensive look at what researchers have been doing over the last years to better understand these compounds and how to explore them for the benefit of the society.

Climate Change and Terrestrial Ecosystem Modeling

Climate Change and Terrestrial Ecosystem Modeling
Author: Gordon Bonan
Publisher: Cambridge University Press
Total Pages: 459
Release: 2019-02-21
Genre: Mathematics
ISBN: 1107043786

Provides an essential introduction to modeling terrestrial ecosystems in Earth system models for graduate students and researchers.

Sensing in Nature

Sensing in Nature
Author: Carlos López-Larrea
Publisher: Springer Science & Business Media
Total Pages: 334
Release: 2012-03-07
Genre: Medical
ISBN: 146141704X

Biological systems are an emerging discipline that may provide integrative tools by assembling the hierarchy of interactions among genes, proteins and molecular networks involved in sensory systems. The aim of this volume is to provide a picture, as complete as possible, of the current state of knowledge of sensory systems in nature. The presentation in this book lies at the intersection of evolutionary biology, cell and molecular biology, physiology and genetics. Sensing in Nature is written by a distinguished panel of specialists and is intended to be read by biologists, students, scientific investigators and the medical community.