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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.
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.
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
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.
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.
The quality of agricultural soils are always under threat from chemical contaminants, which ultimately affect the productivity and safety of crops. Besides agrochemicals, a new generation of substances invades the soil through irrigation with reclaimed wastewater and pollutants of organic origin such as sewage sludge or cattle manure. Emerging pollutants such as pharmaceuticals, nanomaterials and microplastics are now present in agricultural soils, but the understanding of their impact on soil quality is still limited. With focus on in situ bioremediation, this book provides an exhaustive analysis of the current biological methodologies for recovering polluted agricultural soils as well as monitoring the effectiveness of bioremediation.
Soil science has undergone a renaissance with increasing awareness of the importance of soil organisms and below-ground biotic interactions as drivers of community and ecosystem properties.
"Biochar is the carbon-rich product when biomass (such as wood, manure, or crop residues) is heated in a closed container with little or no available air. It can be used to improve agriculture and the environment in several ways, and its stability in soil and superior nutrient-retention properties make it an ideal soil amendment to increase crop yields. In addition to this, biochar sequestration, in combination with sustainable biomass production, can be carbon-negative and therefore used to actively remove carbon dioxide from the atmosphere, with major implications for mitigation of climate change. Biochar production can also be combined with bioenergy production through the use of the gases that are given off in the pyrolysis process.This book is the first to synthesize the expanding research literature on this topic. The book's interdisciplinary approach, which covers engineering, environmental sciences, agricultural sciences, economics and policy, is a vital tool at this stage of biochar technology development. This comprehensive overview of current knowledge will be of interest to advanced students, researchers and professionals in a wide range of disciplines"--Provided by publisher.
The major aim of "microbes in sustainable agriculture" is to provide unique collection of data and a holistic view of the subject while presenting more current ideas in the field where significant advances have been made. Collectively, this book provides recent coverage of the role of microbes in sustainability of agronomic practices and thus is likely to be of tremendous value to the students, scientists, teachers of microbiology, biotechnology, environmental biology, agronomy, plant physiology and plant protection, who are interested in this area. Each chapter in this book has been contributed by a qualified team of teachers/scientists. In this context, the current state of knowledge in a specialised field is reviewed without compromising the basic conceptual frame work presented in this book. A concerted effort has been made by editors/authors to bring in quality presentation. This book thus addresses a lot of common queries and of course some odd ones that bring an interesting approach to problems solving in agricultural practices with optimum application of diverse microbes. This book presents readers with stimulation to forge thought in a non-conventional way to understand complex issues as it addresses many problems previously ignored. This book serves as an important source because of its unique compilation of data and text on the application and importance of microbes in crop productivity to achieve global food security.