Download or read book SOIL MICROBIOLOGY A MODEL OF DECOMPOSITION NUTR CYCLING written by O. L. Smith and published by Springer. This book was released on 1982-05-11 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: A perspective of modeling. A review of models in soil microbiology. Mathematical development. A decomposition and nutrient cycling model. Mathematical basis of the spatial approximation. The decomposers. The general microbe population. The nitrifiers. Symbols. Parameters. The carbon cycle. Disintegration of dead plant and animal matter. Free polysaccharide in soil. Bound polysaccharide. Simple sugar in soil solution. The phosphorus cycle. Free organic phosphorus in soil. Bound phosphorus. Mineral phosphorus. Soil solution phosphorus. The potassium cycle. Potassium leached from live cells. Potassium leached or dissolved from dead cells. Nonexchangeable potassium. Exchangeable potassium. Soluble mineral potassium. Atmospheric input and groundwater loss. Soil solution potassium. The nitrogen-aromatic cycle. Free organic nitrogen in soil. Bound organic nitrogen. Condensable aromatics. Soil solution NH+4. Soil solution NO-2 and NO-3. Cell chemistry. Plants. Microbes. Temperature and moisture dependence of processes. Organic and inorganic reactions. The role of plants in decomposition and nutrient cycling. Model development. Comparison of model with experiment. Comparison of model with theories of plant growth. Simplified version of the plant model. The steady state. Phosphorus. Potassium. Nitrogen. The dynamic state. Overall pattern of decomposition and microbe growth. The influence of substrate carbon and nitrogen content on mineralization and immobilization. Microbe growth limited by nitrogen. Wastage of substrate. The rate-limiting step of nitrogen mineralization. The priming effect of soil amendments on rate of mineralization. Accumulation of organic matter in soils. Effect on microbes of oscillating low soil temperatures. Effect on microbes of soil moist-dry cycles. Microbe and plant competition for nutrients. Strategy of optimum crop fertilization. A look ahead. Mathematical and numerical techniques. The runge-kutta method. Solution of coupled nonlinear algebraic equations.
Download or read book PHYSIOLOGICAL MODELS MICROBIOLOGY written by Michael J. Bazin and published by CRC-Press. This book was released on 1988-02-29 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecology of Desert Systems written by Walter G. Whitford and published by Academic Press. This book was released on 2019-08-20 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nearly one-third of the land area on our planet is classified as arid or desert. Therefore, an understanding of the dynamics of such arid ecosystems is essential to managing those systems in a way that sustains human populations. This second edition of Ecology of Desert Systems provides a clear, extensive guide to the complex interactions involved in these areas. This book details the relationships between abiotic and biotic environments of desert ecosystems, demonstrating to readers how these interactions drive ecological processes. These include plant growth and animal reproductive success, the spatial and temporal distribution of vegetation and animals, and the influence of invasive species and anthropogenic climate change specific to arid systems. Drawing on the extensive experience of its expert authors, Ecology of Desert Systems is an essential guide to arid ecosystems for students looking for an overview of the field, researchers keen to learn how their work fits in to the overall picture, and those involved with environmental management of desert areas. - Highlights the complexity of global desert systems in a clear, concise way - Reviews the most current issues facing researchers in the field, including the spread of invasive species due to globalized trade, the impact of industrial mining, and climate change - Updated and extended to include information on invasive species management, industrial mining impacts, and the current and future role of climate change in desert systems
Download or read book Carbon and Nitrogen Cycling in Soil written by Rahul Datta and published by Springer Nature. This book was released on 2019-08-24 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several textbooks and edited volumes are currently available on general soil fertility but‚ to date‚ none have been dedicated to the study of “Sustainable Carbon and Nitrogen Cycling in Soil.” Yet this aspect is extremely important, considering the fact that the soil, as the ‘epidermis of the Earth’ (geodermis)‚ is a major component of the terrestrial biosphere. This book addresses virtually every aspect of C and N cycling, including: general concepts on the diversity of microorganisms and management practices for soil, the function of soil’s structure-function-ecosystem, the evolving role of C and N, cutting-edge methods used in soil microbial ecological studies, rhizosphere microflora, the role of organic matter (OM) in agricultural productivity, C and N transformation in soil, biological nitrogen fixation (BNF) and its genetics, plant-growth-promoting rhizobacteria (PGPRs), PGPRs and their role in sustainable agriculture, organic agriculture, etc. The book’s main objectives are: (1) to explain in detail the role of C and N cycling in sustaining agricultural productivity and its importance to sustainable soil management; (2) to show readers how to restore soil health with C and N; and (3) to help them understand the matching of C and N cycling rules from a climatic perspective. Given its scope, the book offers a valuable resource for educators, researchers, and policymakers, as well as undergraduate and graduate students of soil science, soil microbiology, agronomy, ecology, and the environmental sciences. Gathering cutting-edge contributions from internationally respected researchers, it offers authoritative content on a broad range of topics, which is supplemented by a wealth of data, tables, figures, and photographs. Moreover, it provides a roadmap for sustainable approaches to food and nutritional security, and to soil sustainability in agricultural systems, based on C and N cycling in soil systems.
Download or read book Soil Biology Primer written by and published by . This book was released on 1999 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Principles and Applications of Soil Microbiology written by Terry Gentry and published by Elsevier. This book was released on 2021-06-06 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by leading experts in their respective fields, Principles and Applications of Soil Microbiology 3e, provides a comprehensive, balanced introduction to soil microbiology, and captures the rapid advances in the field such as recent discoveries regarding habitats and organisms, microbially mediated transformations, and applied environmental topics. Carefully edited for ease of reading, it aids users by providing an excellent multi-authored reference, the type of book that is continually used in the field. Background information is provided in the first part of the book for ease of comprehension. The following chapters then describe such fundamental topics as soil environment and microbial processes, microbial groups and their interactions, and thoroughly addresses critical nutrient cycles and important environmental and agricultural applications. An excellent textbook and desk reference, Principles and Applications of Soil Microbiology, 3e, provides readers with broad, foundational coverage of the vast array of microorganisms that live in soil and the major biogeochemical processes they control. Soil scientists, environmental scientists, and others, including soil health and conservation specialists, will find this material invaluable for understanding the amazingly diverse world of soil microbiology, managing agricultural and environmental systems, and formulating environmental policy. - Includes discussion of major microbial methods, embedded within topical chapters - Includes information boxes and case studies throughout the text to illustrate major concepts and connect fundamental knowledge with potential applications - Study questions at the end of each chapter allow readers to evaluate their understanding of the materials
Download or read book Nutrient Cycling and Plant Nutrition in Forest Ecosystems written by Scott X. Chang and published by MDPI. This book was released on 2018-04-27 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Urban and Periurban Forest Diversity and Ecosystem Services" that was published in Forests
Download or read book Methods in Applied Soil Microbiology and Biochemistry written by Kassem Alef and published by Academic Press. This book was released on 1995-07-11 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quality control and quality assurance in applied soil microbiology and biochemistry. Soil sampling, handling, storage and analysis. Enrichment, isolation and counting of soil microrganisms. Anaerobic microbial activities in soil. Enzyme activities. Microbial biomass. Community structure. Field methods. Bioremediation of soil.
Download or read book Soil Microbial Community Succession During Cadaver Decomposition written by Kelly Lynn Cobaugh and published by . This book was released on 2013 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbes play critical roles in nutrient cycling in terrestrial ecosystems. In particular, microbial decomposition of organic matter is a key step in carbon and nutrient cycling, linking above-ground and below-ground pools. It is well known that the microbial community changes in structure and function following the introduction of organic matter into a terrestrial system. The decomposition of plant litter has been extensively investigated but the decomposition of animal-derived organic matter has often been overlooked. The unique characteristics of animal input are hypothesized to dictate a distinct decomposition process. This study examined the microbial community responsible for decomposition of animal-derived organic matter. Our objective was to determine the taxonomic and functional succession of microbial populations in a Cadaver Decomposition Island (CDI) during decomposition. To address our objectives, soils from beneath four cadavers at the UT Anthropological Facility were sampled throughout the decomposition process. Reproducible patterns in the concentration of extractable total nitrogen, ammonia and organic carbon in the soil were observed. The distinct trends in microbial respiration and net N mineralization rates indicated that a major functional shift in the community occurred following the Active Decay stage. Human-associated Bacteroides were detected at high concentrations throughout decomposition, up to 198 days after cadavers were first placed. This study revealed the succession in microbial community function and structure during decomposition of animal-derived organic matter, and has implications in the fields of public health and forensic science.
Download or read book Carbon Cycles and Climate written by Jerry S. Olson and published by . This book was released on 1980 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: This partially annotated bibliography contains the first 1000 references from a computerized file of literature on the global ecological implications of carbon cycles and climatic changes. Many early citations originated from the Biogeochemical Ecological Information Center established at Oak Ridge National Laboratory in 1968 and from profiles of computerized files such as Government Research Abstracts (GRA) and Biological Abstracts (BA). Later citations have been extracted from the open literature through 1978 and early 1979, from government reports and impact statements, and from profiles of GRA, BA, and the Energy Data Base of the Department of Energy Technical Information Center, Oak Ridge, Tennessee. The subject categories covered by this bibliography may be divided into two main topics: carbon cycling and climate system analysis. Volume I contains an introduction and overview. Volume 2 contains an alphabetical (by author) listing of citations. Volume 3 provides indexes for author, organization (corporate authority), keywords (or free index terms), taxonomic category, subject category, Chemical Abstracts codes, Biological Abstracts codes (crosscode), and COSATI/Weekly Government Abstracts codes concentrated with permuted title words.
Download or read book Nutrient Cycling in Terrestrial Ecosystems written by Petra Marschner and published by Springer Science & Business Media. This book was released on 2007-05-01 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive overview of nutrient cycling processes and their importance for plant growth and ecosystem sustainability. The book combines fundamental scientific studies and devised practical approaches. It contains contributions of leading international authorities from various disciplines resulting in multidisciplinary approaches, and all chapters have been carefully reviewed. This volume will support scientists and practitioners alike.
Download or read book Handbook of Soil Sciences Two Volume Set written by Pan Ming Huang and published by CRC Press. This book was released on 2018-10-03 with total page 2249 pages. Available in PDF, EPUB and Kindle. Book excerpt: An evolving, living organic/inorganic covering, soil is in dynamic equilibrium with the atmosphere above, the biosphere within, and the geology below. It acts as an anchor for roots, a purveyor of water and nutrients, a residence for a vast community of microorganisms and animals, a sanitizer of the environment, and a source of raw materials for co
Download or read book Changes in Forest Ecosystem Nutrition written by Friederike Lang and published by Frontiers Media SA. This book was released on 2021-10-18 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chapter 28 Biogeochemical Cycling and Ecosystem Productivity written by Michael Pidwirny and published by Our Planet Earth Publishing. This book was released on 2023-08-15 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chapter 28: Biogeochemical Cycling and Ecosystem Productivity of the eBook Understanding Physical Geography. This eBook was written for students taking introductory Physical Geography taught at a college or university. For the chapters currently available on Google Play presentation slides (Powerpoint and Keynote format) and multiple choice test banks are available for Professors using my eBook in the classroom. Please contact me via email at [email protected] if you would like to have access to these resources. The various chapters of the Google Play version of Understanding Physical Geography are FREE for individual use in a non-classroom environment. This has been done to support life long learning. However, the content of Understanding Physical Geography is NOT FREE for use in college and university courses in countries that have a per capita GDP over $25,000 (US dollars) per year where more than three chapters are being used in the teaching of a course. More specifically, for university and college instructors using this work in such wealthier countries, in a credit-based course where a tuition fee is accessed, students should be instructed to purchase the paid version of this content on Google Play which is organized as one of six Parts (organized chapters). One exception to this request is a situation where a student is experiencing financial hardship. In this case, the student should use the individual chapters which are available from Google Play for free. The cost of these Parts works out to only $0.99 per chapter in USA dollars, a very small fee for my work. When the entire textbook (30 chapters) is finished its cost will be only $29.70 in USA dollars. This is far less expensive than similar textbooks from major academic publishing companies whose eBook are around $50.00 to $90.00. Further, revenue generated from the sale of this academic textbook will provide “the carrot” to entice me to continue working hard creating new and updated content. Thanks in advance to instructors and students who abide by these conditions. IMPORTANT - This Google Play version is best viewed with a computer using Google Chrome, Firefox or Apple Safari browsers.
Download or read book Proceedings of the Biennial Southern Silvicultural Research Conference written by and published by . This book was released on 2001 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microbiome and Plant Nutrition written by Kambaska Kumar Behera and published by CRC Press. This book was released on 2024-10-31 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book titled “Microbiome and Plant Nutrition꞉ A Roadmap Towards Sustainable Agriculture” is expected to direct many emerging research pathways needed at local and global levels for sustainable agricultural package and practices. This volume incorporates thirteen seminal chapters on issue based research and their practical applications covering latest information and progress in different areas of microbial supplemented crop nutrition for sustainable agriculture. The book highlights the frontier issues and applications of plant‐microbe interaction in crop nutritional strategy with topics like System biology of plant microbe interaction, Plant growth‐promoting rhizobacteria꞉ a context for sustainable agriculture, Plant growth‐promoting endophytes꞉ a context for sustainable agriculture, The role of the mycorrhiza in nutrient uptake, Plant nitrogen, phosphorus and sulphur nutrition꞉ a microbial perspective, Carbon and nitrogen turnover in soils and plant rhizo‐deposition, Root exudates꞉ a link to plant‐microbe nutritional interactions and insight into the metabolic and nutrition network pathway of plant‐microbe interaction, Commercialization perspective of bio‐stimulants for sustainable agriculture, Interconnection of plants with microbiomes in changing climate꞉ a functional extension of the host and heavy metal dynamics in rice soil꞉ an alleviation through microbial intervention approach. This book will be very useful for the scholars, biotechnologists, agricultural scientists, plant nutritionists, researchers, teachers and students in the emerging field of soil‐microbiome and plant nutrition dynamics in the resilient climatic agriculture era.
Download or read book Nutrient Cycling in Forest Ecosystems written by Robert G. Qualls and published by MDPI. This book was released on 2020-12-03 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: The long-term productivity of forest ecosystems depends on the cycling of nutrients. The effect of carbon dioxide fertilization on forest productivity may ultimately be limited by the rate of nutrient cycling. Contemporary and future disturbances such as climatic warming, N-deposition, deforestation, short rotation sylviculture, fire (both wild and controlled), and the invasion of exotic species all place strains on the integrity of ecosystem nutrient cycling. Global differences in climate, soils, and species make it difficult to extrapolate even a single important study worldwide. Despite advances in the understanding of nutrient cycling and carbon production in forests, many questions remain. The chapters in this volume reflect many contemporary research priorities. The thirteen studies in this volume are arranged in the following subject groups: • N and P resorption from foliage worldwide, along chronosequences and along elevation gradients; • Litter production and decomposition; • N and P stoichiometry as affected by N deposition, geographic gradients, species changes, and ecosystem restoration; • Effects of N and P addition on understory biomass, litter, and soil; • Effects of burning on soil nutrients; • Effects of N addition on soil fauna.
