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Modelling The Effects Of Atmospheric Co2 On Vegetation Atmosphere Interactions
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Book Synopsis Modelling the effects of atmospheric CO2 on vegetation-atmosphere interactions by : A D (Andrew) Friend
Download or read book Modelling the effects of atmospheric CO2 on vegetation-atmosphere interactions written by A D (Andrew) Friend and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of doubling atmospheric CO2 concentration (C-a) on climate and vegetation is investigated using a combined climate-vegetation model. The vegetation model predicts the response of leaf area index, canopy transpiration (E(T)) and whole-plant carbon balance to changes in climate, soil moisture, and atmospheric CO2 forcing. This model has been embedded in the UK Meteorological Office Single Column Model (SCM), which provides the climate feedback to the vegetation. The vegetation model uses an optimisation approach to predict stomatal resistance, a biochemical model to predict photosynthesis and a simple carbon balance model to predict leaf area. Respiration is calculated as a function of leaf area and vegetation height. Clouds are assumed to be radiatively passive in the SCM to avoid unrealistic feedbacks. Simulations were performed with the fully interactive vegetation-climate model for an Amazon location with the present-day value of C-a (1 x CO2), and twice this value (2 x CO2). In addition, two other types of simulation were performed at both CO2 concentrations: one in which the vegetation component was forced only with 1 x CO2, and one using a fixed surface resistance. The latter case is equivalent to simulations using most current general circulation models. In all the simulations, increased atmospheric CO2 caused an increase in surface temperature owing to increased radiative forcing. With a fixed resistance, mean E(T) was increased by 5.6% and sensible heat flux was reduced by 3.8%. The fully interactive model had significant effects on the response of both climate and productivity to C-a. Increased C-a caused stomatal closure, which resulted in a reduction in mean E(T) Of 25%. The effect of C-a on E(T) was amplified by the positive feedback resulting from the effect of increased air humidity deficit on stomatal resistance.
Book Synopsis Direct Effects of Increasing Carbon Dioxide on Vegetation by : Boyd R. Strain
Download or read book Direct Effects of Increasing Carbon Dioxide on Vegetation written by Boyd R. Strain and published by . This book was released on 1986 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Introduction to Boundary Layer Meteorology by : Roland B. Stull
Download or read book An Introduction to Boundary Layer Meteorology written by Roland B. Stull and published by Springer Science & Business Media. This book was released on 1988-07-31 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: Part of the excitement in boundary-layer meteorology is the challenge associated with turbulent flow - one of the unsolved problems in classical physics. An additional attraction of the filed is the rich diversity of topics and research methods that are collected under the umbrella-term of boundary-layer meteorology. The flavor of the challenges and the excitement associated with the study of the atmospheric boundary layer are captured in this textbook. Fundamental concepts and mathematics are presented prior to their use, physical interpretations of the terms in equations are given, sample data are shown, examples are solved, and exercises are included. The work should also be considered as a major reference and as a review of the literature, since it includes tables of parameterizatlons, procedures, filed experiments, useful constants, and graphs of various phenomena under a variety of conditions. It is assumed that the work will be used at the beginning graduate level for students with an undergraduate background in meteorology, but the author envisions, and has catered for, a heterogeneity in the background and experience of his readers.
Download or read book CO2 and biosphere written by Jelte Rozema and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: An international workshop on `CO2 and Biosphere' was held in Wageningen, the Netherlands on 15-19 November 1991 as part of the activities of the CO2 Commission of the Netherlands Organization for Scientific Research: this volume includes 32 papers presented at the workshop. The CO2 Commission stimulates and coordinates a broad range of research projects related to the greenhouse effect. This is reflected in the scope of papers presented, ranging from detailed analyses of ecological and physiological effects of atmospheric CO2 enrichment to biosphere-atmosphere aspects, such as regional evaporation, energy balance and ecosystem responses. Relevant directions for future research are indicated by presentations on carbon fluxes in the soil, secondary plant metabolism and plant-insect interactions.
Book Synopsis Bi-directional Interactions Simulated by a Synchronously Coupled Atmosphere-vegetation Model by : Samuel Levis
Download or read book Bi-directional Interactions Simulated by a Synchronously Coupled Atmosphere-vegetation Model written by Samuel Levis and published by . This book was released on 1999 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Carbon Dioxide and Environmental Stress by : Luo Yiqi
Download or read book Carbon Dioxide and Environmental Stress written by Luo Yiqi and published by Elsevier. This book was released on 1999-04-13 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the interactive effects of environmental stresses with plant and ecosystem functions, especially with respect to changes in the abundance of carbon dioxide. The interaction of stresses with elevated carbon dioxide are presented from the cellular through whole plant ecosystem level. The book carefully considers not only the responses of the above-ground portion of the plant, but also emphasizes the critical role of below-ground (rhizosphere) components (e.g., roots, microbes, soil) in determining the nature and magnitude of these interactions.* Will rising CO2 alter the importance of environmental stress in natural and agricultural ecosystems?* Will environmental stress on plants reduce their capacity to remove CO2 from the atmosphere?* Are some stresses more important than others as we concern ourselves with global change?* Can we develop predictive models useful for scientists and policy-makers?* Where should future research efforts be focused?
Book Synopsis Effects of Air Temperature on Atmospheric CO2 by :
Download or read book Effects of Air Temperature on Atmospheric CO2 written by and published by . This book was released on 1990 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Vegetation/atmosphere interaction and responses to atmospheric CO2 by : A D (Andrew) Friend
Download or read book Vegetation/atmosphere interaction and responses to atmospheric CO2 written by A D (Andrew) Friend and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Managing Water Resources in the West Under Conditions of Climate Uncertainty by : National Research Council
Download or read book Managing Water Resources in the West Under Conditions of Climate Uncertainty written by National Research Council and published by National Academies Press. This book was released on 1991-02-01 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: The question of whether the earth's climate is changing in some significant human-induced way remains a matter of much debate. But the fact that climate is variable over time is well known. These two elements of climatic uncertainty affect water resources planning and management in the American West. Managing Water Resources in the West Under Conditions of Climate Uncertainty examines the scientific basis for predictions of climate change, the implications of climate uncertainty for water resources management, and the management options available for responding to climate variability and potential climate change.
Download or read book Co2 And Plants written by Edgar R. Lemon and published by CRC Press. This book was released on 2019-04-11 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents information on the direct effects of increased atmospheric CO2 on plants. It considers what we already know about plant responses to various CO2 concentrations. .
Book Synopsis Climate Change Impacts on Soil-Plant-Atmosphere Continuum by : Himanshu Pathak
Download or read book Climate Change Impacts on Soil-Plant-Atmosphere Continuum written by Himanshu Pathak and published by Springer Nature. This book was released on with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Interactions of CO2 with Temperature and Other Climate Variables by :
Download or read book Interactions of CO2 with Temperature and Other Climate Variables written by and published by . This book was released on 1995 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall objectives of this project were: (1) to examine experimentally, for major crop species, the interacting effects of CO2 concentration, temperature, and water availability on plant growth and development, (2) to model these interactions, and (3) to continue developing physiologically-based mechanistic models for predicting crop response to increased CO2 concentration and future global climate change. To meet these objectives, controlled-environment studies were conducted on cotton, lemon, rice, and soybean and a long-term open-top chamber study was continued on orange. Much progress was made on development of plant growth models for cotton, wheat, rice, and soybean. In addition, there were two special modeling efforts which have the potential for contributing to all of the crop models. These efforts are concerned with modeling root growth and physical and chemical processes in soil and with modeling the effect of stomatal aperture on photosynthesis and transpiration rates as a function of CO2 concentration, temperature, and vapor pressure deficit. The root growth and soil process modeling is important because it enables us to estimate the water available to the plant. The modeling of effects of stomatal aperture on photosynthesis and transpiration rates enables them to estimate dry weight gain and water use by the plant. These are both important components of the interaction of CO2 concentration with temperature and water availability. The work on stomatal aperture, photosynthesis, and transpiration has the added benefit of allowing us to improve predictions of energy partitioning by the terrestrial biosphere. The lack of realistic energy partitioning is a serious deficiency of the present general circulation models which are used to predict how climate will change. An additional important aspect of the rice experiments is a study of methane emissions of paddy-grown (i.e., flooded) rice grown under two levels of CO2 and three temperature regimes.
Book Synopsis Vegetation-Climate Interaction by : Jonathan Adams
Download or read book Vegetation-Climate Interaction written by Jonathan Adams and published by Springer Science & Business Media. This book was released on 2009-11-27 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: An accessible account of the ways in which the world's plant life affects the climate. It covers everything from tiny local microclimates created by plants to their effect on a global scale. If you’ve ever wondered how vegetation can create clouds, haze and rain, or how plants have an impact on the composition of greenhouse gases, then this book is required reading.
Book Synopsis Vegetation and the Terrestrial Carbon Cycle by : David Beerling
Download or read book Vegetation and the Terrestrial Carbon Cycle written by David Beerling and published by Cambridge University Press. This book was released on 2001-10-18 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: An analysis of the Earth's vegetations and carbon cycle in the past and predictions for the future.
Book Synopsis Linkages Between Global Vegetation and Climate by : Sietse Oene Los
Download or read book Linkages Between Global Vegetation and Climate written by Sietse Oene Los and published by . This book was released on 1998 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation deals with temporal and spatial variations in the biosphere observed by satellite and the linkages of these variations with variations in the global climate. The study is part of a larger Earth Observing System (EOS) Interdisciplinary Science (IDS) Biosphere-Atmosphere Interactions project that deals with the implications of these interactions of biosphere-atmosphere interactions for the global carbon cycle. For this dissertation, both model results and observations were used.
Book Synopsis CO2, Temperature, and Trees by : Dieter Overdieck
Download or read book CO2, Temperature, and Trees written by Dieter Overdieck and published by Springer. This book was released on 2016-10-22 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive book discusses the ecophysiological features of trees affected by the two most prominent factors of climate change: atmospheric CO2 concentration and temperature. It starts with the introduction of experimental methods at the leaf, branch, the whole-tree, and tree group scales, and in the following chapters elaborates on specific topics including photosynthesis of leaves, respiration of plant organs, water use efficiency, the production of and/or distribution patterns of carbohydrates, secondary metabolites, and nutrients, anatomy of cells and tissues, height and stem-diameter growth, biomass accumulation, leaf phenology and longevity, and model ecosystems (soil-litter-plant enclosures). The current knowledge is neatly summarized, and the author presents valuable data derived from his 30 years of experimental research, some of which is published here for the first time. Using numerous examples the book answers the fundamental questions such as: What are the interactions of elevated CO2 concentration and temperature on tree growth and matter partitioning? How do different tree groups react? Are there any effects on organisms living together with trees? What kinds of models can be used to interpret the results from experiments on trees? This volume is highly recommended for researchers, postdocs, and graduate students in the relevant fields. It is also a valuable resource for undergraduate students, decision-makers in the fields of forest management and environmental protection, and any other scientists who are interested in the effect of global change on ecosystems.
Book Synopsis Carbon Dioxide and Terrestrial Ecosystems by : George W. Koch
Download or read book Carbon Dioxide and Terrestrial Ecosystems written by George W. Koch and published by Elsevier. This book was released on 1995-12-21 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: The importance of carbon dioxide extends from cellular to global levels of organization and potential ecological deterioration may be the result of increased CO2 in our atmosphere. Recently, the research emphasis shifted from studies of photosynthesis pathways and plant growth to ground-breaking studies of carbon dioxide balances in ecosystems, regions, and even the entire globe. Carbon Dioxide and Terrestrial Ecosystems addresses these new areas of research. Economically important woody ecosystems are emphasized because they have substantial influence on global carbon dioxide balances. Herbaceous ecosystems (e.g., grasslands, prairies, wetlands) and crop ecosystems are also covered. The interactions among organisms, communities, and ecosystems are modeled, and the book closes with an important synthesis of this growing nexus of research. Carbon Dioxide and Terrestrial Ecosystems is a compilation of detailed scientific studies that reveal how ecosystems generally, and particular plants specifically, respond to changed levels of carbon dioxide. - Contributions from an international team of experts - Empirical examination of the actual effects of carbon dioxide - Variety of terrestrial habitats investigated - Specific plants and whole ecosystems offered as studies
