Download or read book Sustainable use and conservation of soil microorganisms and invertebrates contributing to bioremediation and nutrient cycling written by Csorba, C. and published by Food & Agriculture Org.. This book was released on 2024-03-29 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Following up on previous reports prepared for the Commission on Genetic Resources for Food and Agriculture, and acknowledging FAO’s long tradition of technical work on the management of microorganisms and invertebrates in food and agriculture, the present paper responds to the need for a detailed assessment of the state of art in the conservation and sustainable use of soil microorganisms and invertebrates. It focuses on microorganisms and invertebrates contributing to nutrient cycling and the removal of contaminants from soils. The study is based on an extensive literature review and summarizes current views on the taxonomy, conservation, use and exchange of soil microorganisms and invertebrates, highlighting knowledge gaps, needs and challenges. In order to encompass the views of a wide range of stakeholders on knowledge gaps and critical issues related to the conservation and sustainable use of these organisms, the Austrian Institute of Technology (AIT) circulated an invitation to complete an open online survey to several hundred researchers, institutions and organizations worldwide. Twenty-seven responses were received and evaluated. AIT also organized an online expert workshop entitled Status and Trends of Conservation of Soil Microorganisms and Invertebrates, with Emphasis on Bioremediation and Nutrient Cycling Organisms. Twenty-six international experts participated in three parallel sessions: (i) nutrient cycling in soil; (ii) bioremediation in food and agriculture systems; and (iii) conservation of microorganisms and invertebrates, practices, policies and needs. The issues raised in the survey responses and at the workshop were taken into account in the drafting of the study.
Download or read book Flexible Voluntary Contribution written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2023-12-14 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Flexible Voluntary Contribution (FVC) 2022 annual progress report captures the key achievements of the FVC, both in terms of its role as a pooled fund for non-earmarked and softly earmarked contributions from resource partners and the implementation of development initiatives through FVC subprogrammes. The report provides a comprehensive understanding of the FVC's role within the Organization, the contribution of FVC-funded work to the achievements of FAO's four betters and their respective Programme Priority Areas (PPAs), and the future direction of the FVC based on experiences in 2022. The report comprises six sections: (1) Introduction, (2) Achievements of the FVC as a fund, (3) Achievements of FVC programmes (the four betters), (4) Key FVC principles, (5) Challenges and lessons learned, and (6) Conclusions and future actions.
Download or read book Soil Bioremediation written by Javid A. Parray and published by John Wiley & Sons. This book was released on 2021-03-22 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: SOIL BIOREMEDIATION A practical guide to the environmentally sustainable bioremediation of soil Soil Bioremediation: An Approach Towards Sustainable Technology provides the first comprehensive discussion of sustainable and effective techniques for soil bioremediation involving microbes. Presenting established and updated research on emerging trends in bioremediation, this book provides contributions from both experimental and numerical researchers who provide reports on significant field trials. Soil Bioremediation instructs the reader on several different environmentally friendly bioremediation techniques, including: Bio-sorption Bio-augmentation Bio-stimulation Emphasizing molecular approaches and biosynthetic pathways of microbes, this one-of-a-kind reference focuses heavily on the role of microbes in the degradation and removal of xenobiotic substances from the environment and presents a unique management and conservation perspective in the field of environmental microbiology. Soil Bioremediation is perfect for undergraduate students in the fields of environmental science, microbiology, limnology, freshwater ecology and microbial biotechnology. It is also invaluable for researchers and scientists working in the areas of environmental science, environmental microbiology, and waste management.
Download or read book Sustainable Living with Environmental Risks written by Nobuhiro Kaneko and published by Springer. This book was released on 2014-03-11 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: We are not free from environmental risks that accompany the development of human societies. Modern economic development has accelerated environmental pollution, caused loss of natural habitats, and modified landscapes. These environmental changes have impacted natural systems: water and heat circulation, nutrient cycling, and biodiversity. These changes in natural systems degrade ecosystem services and subsequently increase environmental risks for humans. Environmental risks, therefore, are not only human health risks by pollution, climatic anomalies and natural disasters, but also degradation of ecosystem services on which most people are relying for their lives. We cannot entirely eliminate the risks, because it is not possible to attain zero impact on the environment, but we need to find a mechanism that minimizes environmental risks for human sustainably. This is the idea of the interdisciplinary framework of “environmental risk management” theory, which advocates harmony between economic development and environmental conservation. Based on this theory, the Sustainable Living with Environmental Risk (SLER) programme, adopted by the Japanese Ministry of Education (MEXT) as one of its strategic programmes, has been training graduate students at the Yokohama National University, Japan, from 2009 to 2013 to become future environmental leaders who will take the initiative in reducing the level of environmental risks and in protecting natural resources in the developing nations of Asia and Africa. This book provides students and teachers of this new academic field with a comprehensive coverage of case studies of environmental risks and their practical management technologies not only in Japan but also in developing nations in Asia and Africa.
Download or read book Microbes and Enzymes in Soil Health and Bioremediation written by Ashok Kumar and published by Springer. This book was released on 2021-01-21 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbial enzymes play a vital role in maintaining soil health and removing pollutants from contaminated land. Soil microflora is closely associated with maintaining soil fertility, and the use of chemical pesticides, fertilizers and other volatile sprays in agriculture threatens the health ofthe microbial population in the soil. Every single particle of healthy soil contains millions of bacteria, which interact with the nutrients available, sustaining the nutrient cycle and making this microflora an essential component of life on earth. How do microbes help in the nutrient cycle? Either by intracellular digestion of macromolecules and converting these into smaller units in their metabolic pathways, or by secreting enzymes into the extracellular environment to facilitate the conversion of complex macromolecules into micro-molecules that can be easily absorbed by other living species. To meet demands for energy and food for the growing global population, it is important to protect agricultural land from contamination and maintain its productivity. Heavy metal ions from contaminated land canenter crops, fish or aquatic organismsvia contaminated water, and theseare then taken up by the human body, where they can accumulate and alter the normal microflora. The microbiological component of the soil is ahighly complex system and is still not fully understood. How do microbes survive in the changing physicochemical environment of soil?. This book helps readers understand the mechanism, various routes of microbialsoil remediation, the interactionsof different genera, and how microbial enzymes support the sustainable restoration of healthy soil.
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 Microbes and Enzymes in Soil Health and Bioremediation written by and published by . This book was released on 2019 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbial enzymes play a vital role in maintaining soil health and removing pollutants from contaminated land. Soil microflora is closely associated with maintaining soil fertility, and the use of chemical pesticides, fertilizers and other volatile sprays in agriculture threatens the health ofthe microbial population in the soil. Every single particle of healthy soil contains millions of bacteria, which interact with the nutrients available, sustaining the nutrient cycle and making this microflora an essential component of life on earth. How do microbes help in the nutrient cycle? Either by intracellular digestion of macromolecules and converting these into smaller units in their metabolic pathways, or by secreting enzymes into the extracellular environment to facilitate the conversion of complex macromolecules into micro-molecules that can be easily absorbed by other living species. To meet demands for energy and food for the growing global population, it is important to protect agricultural land from contamination and maintain its productivity. Heavy metal ions from contaminated land canenter crops, fish or aquatic organismsvia contaminated water, and theseare then taken up by the human body, where they can accumulate and alter the normal microflora. The microbiological component of the soil is ahighly complex system and is still not fully understood. How do microbes survive in the changing physicochemical environment of soil?. This book helps readers understand the mechanism, various routes of microbialsoil remediation, the interactionsof different genera, and how microbial enzymes support the sustainable restoration of healthy soil.
Download or read book Soil Organisms written by Moonisa Aslam Dervash and published by Springer Nature. This book was released on with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Prospects for Soil Regeneration and Its Impact on Environmental Protection written by Sesan Abiodun Aransiola and published by Springer Nature. This book was released on with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Bacteria written by Shrivardhan Dheeman and published by Springer. This book was released on 2024-08-18 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive exploration delves into the pivotal role of bacteria in soil health, elucidating their mechanisms in organic matter decomposition, metal facilitation, bioremediation of stubborn materials, and nutrient cycling essential for soil fertilization, plant health and conditioning. In an agricultural ecosystem, soil nutrients are the backbone, sourced either externally through fertilizers or internally by the action of soil bacteria. Understanding the intricate concert of soil bacteria within the ecological framework offers three significant advantages: revitalizing soil health and quality (soil reclamation), enhancing soil nutrient availability (biofertilization), and amplifying crop yields in an environmentally sustainable manner (sustainable agriculture). This book caters to a diverse audience including educators, researchers, technocrats, policymakers, agricultural foundations, non-governmental organizations, and particularly research students. It also serves as supplementary material for undergraduate and graduate students across various disciplines such as agriculture, microbiology, biotechnology, forestry, ecology, soil science, and environmental sciences. Additionally, it provides invaluable insights for both national and international agricultural scientists and soil ecologists, enriching their understanding of soil ecosystems and agricultural sustainability.
Download or read book Bioremediation and Phytoremediation Technologies in Sustainable Soil Management written by Junaid Ahmad Malik and published by Apple Academic Press. This book was released on 2022 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 4-volume set focuses on the use of microbial bioremediation and phytoremediation to clean up pollutants in soil, such as pesticides, petroleum hydrocarbons, metals, and chlorinated solvents, which reduce the soil's fertility and renders it unfit for plant growth. Volume 2: Microbial Approaches and Recent Trends focuses on new and emerging techniques and approaches to address soil pollution. These include the use of rhizobacteria, archaea, cyanobacteria, and microalgae as biofertilizers and for soil bioremediation efforts. New technologies for assessment of soil bioremediation are explored also. The chapters provide in-depth coverage of the mechanisms, advantages, and disadvantages of the technologies used and highlight the use of different microbial enzymes that are used in the process of bioremediation and phytoremediation to clean up different pollutants without causing damage to the natural environment. Other volumes in the 4-volume set: * Volume 1: Fundamental Aspects and Contaminated Sites * Volume 3: Inventive Techniques, Research Methods, and Case Studies * Volume 4: Degradation of Pesticides and Polychlorinated Biphenyls Together, these four volumes provide in-depth coverage of the mechanisms, advantages, and disadvantages of the bioremediation and phytoremediation technologies for safe and sustainable soil management. The diverse topics help to arm biologists, agricultural engineers, environmental and soil scientists and chemists with the information and tools they need to address soil toxins that are a dangerous risk to plants, wildlife, humans and, of course, the soil itself.
Download or read book Mechanisms to Management written by Tayler Chicoine Ulbrich and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is an urgent need to address challenges with environmental degradation and climate change in our agricultural landscapes, and the solution may lie with soil microbes. The soil microbes living in close association with plant roots, in the rhizosphere, play a central role in nutrient cycling, carbon sequestration, and plant growth and, therefore have significant promise for agriculture. Compared to annual crops, perennial cropping systems, such as those used for cellulosic bioenergy, do more for addressing carbon sequestration and soil health. However, to harness the benefits of microbes in these systems, we need to first understand the primary factors impacting their assembly. Many studies show microbial assembly is largely mediated by the plant host, but these studies often focus on isolated plants, and do not consider how neighboring plant interactions may also alter microbiome assembly. Furthermore, for soil biology to be an agricultural solution it is also essential that their benefits are clear and align with farmers' management goals. Studies show that farmers value soil biology and soil health more broadly, but how this guides their management decisions is unknown. To this end, in my dissertation, I use microbial ecology (Chapters 1-3) and social science (Chapter 4), to investigate how plant-microbial interactions and farmer perspectives can be harnessed for sustainable agriculture.In my first three chapters I examine how switchgrass (Panicum virgatum L.), a candidate bioenergy crop, mediates the assembly of its root and rhizosphere microbiome, considering two factors: genotype and neighborhood context. In Chapter 1 I asked if, like plant species, plant genotypes also associate with distinct microbiomes. Using an established field experiment with twelve mature switchgrass cultivars, I found that genotypes have subtle, though significant effects on their rhizosphere microbiomes, and that root traits contribute to this variation. Next, in Chapters 2 and 3, I asked if and how a host plant's microbiome changes with different neighbor plants. To do this, I used two different greenhouse experiments where a focal switchgrass plant was neighbored by different species. In Chapter 2, I show that neighbor identity explains 21% of the variation in the focal plant's rhizosphere community. Changes in the focal plant's root exudates, as well as spillover of microbes from a larger, more competitive neighbor, contributed to the microbiome shifts. In Chapter 3, I disentangle the relative role of microbial spillover versus the host plant in mediating the previously observed neighborhood effects by using specialized plant growth systems called rhizoboxes with root barriers. Here, neighbor identity altered the root microbiomes, but not rhizosphere communities, which also did not differ among the plant species. These results suggest that the host plant does play a role in mediating neighborhood effects in the roots, but shifts in the rhizosphere depend upon each neighbor species harboring a distinct microbiome in the first place. My first three chapters show that there is not one switchgrass microbiome, and that microbial assembly is influenced by plant genotype and neighborhood context. Both factors should be considered as we seek to understand plant-microbial studies in natural settings.Finally, in Chapter Four, I ask how farmers perceive, evaluate, and understand soil health. Using surveys and interviews I found that Michigan farmers have a complex understanding of soil health, and that soil biology is a top consideration, but that it is challenging for farmers to link this knowledge to management decisions. The interviews also revealed several salient research and outreach opportunities that could help farmers more intentionally fit soil health into their management decisions, such as identifying faster-responding indicators of soil biological health or discussing soil health in terms that resonate with farmers' mental models. Altogether, my dissertation shows how mechanistic studies and farmer perspectives each provide novel insights for the potential role of soil biology in sustainable agriculture.
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 Soil Science Fundamentals to Recent Advances written by Amitava Rakshit and published by Springer Nature. This book was released on 2021-07-30 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt: This compilation has been designed to provide a comprehensive source of theoretical and practical update for scientists working in the broad field of soil science. The book explores all possible mechanisms and means to improve nutrient use efficiencies involving developing and testing of nanofertilizers, developing consortia based microbial formulations for mobilization of soil nutrients, and engineering of nutrient efficient crops using molecular biology and biotechnological tools. This is an all-inclusive collection of information about soil science. This book is of interest to teachers, researchers, soil scientists, capacity builders and policymakers. Also the book serves as additional reading material for undergraduate and graduate students of soil science, quantitative ecology, earth sciences, GIS and geodetic sciences, as well as geologists, geomorphologists, hydrologists and landscape ecology. National and international agriculture and soil scientists, policy makers will also find this to be a useful read.
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 Soil Biological Communities and Ecosystem Resilience written by Martin Lukac and published by Springer. This book was released on 2017-10-06 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume explores current knowledge and methods used to study soil organisms and to attribute their activity to wider ecosystem functions. Biodiversity not only responds to environmental change, but has also been shown to be one of the key drivers of ecosystem function and service delivery. Soil biodiversity in tree-dominated ecosystems is also governed by these principles, the structure of soil biological communities is clearly determined by environmental, as well as spatial, temporal and hierarchical factors. Global environmental change, together with land-use change and ecosystem management by humans, impacts the aboveground structure and composition of tree ecosystems. Due to existing knowledge of the close links between the above- and belowground parts of terrestrial ecosystems, we know that soil biodiversity is also impacted. However, very little is known about the nature of these impacts; effects on the overall level of biodiversity, the magnitude and diversity of functions soil biodiversity generates, but also on the present and future stability of tree ecosystems and soils. Even though much remains to be learned about the relationships between soil biodiversity and tree ecosystem functionality, it is clear that better effort needs to be made to describe and understand key processes which take place in soils and are driven by soil biota.
Download or read book Sustainable Crop Production written by Mirza Hasanuzzaman and published by BoD – Books on Demand. This book was released on 2020-06-17 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book includes twenty-one comprehensive chapters addressing various soil and crop management issues, including modern techniques in enhancing crop production in the era of climate change. There are a few case studies and experimental evidence about these production systems in specific locations. Particular focus is provided on the state-of-the-art of biotechnology, nanotechnology, and precision agriculture, as well as many other recent approaches in ensuring sustainable crop production. This book is useful for undergraduate and graduate students, teachers, and researchers, particularly in the fields of crop science, soil science, and agronomy.
