Author : Jörg Luster
Publisher : Frontiers Media SA
Page : 172 pages
File Size : 50,20 MB
Release : 2023-03-13
Category : Science
ISBN : 2832512615
Author : Martin Fey
Publisher : Cambridge University Press
Page : 289 pages
File Size : 28,15 MB
Release : 2010-02-16
Category : Technology & Engineering
ISBN : 1139495291
Soils of South Africa is the first book in seventy years that provides a comprehensive account of South African soils. The book arranges more than seventy soil forms into fourteen groups and then provides, for each group: • maps showing their distribution and abundance throughout South Africa • descriptions of morphological, chemical and physical properties • a detailed account of classification and its correlation with international systems • a discussion of soil genesis which includes a review of relevant research papers • appraisal of soil quality from a land use perspective as well as for its ecological significance • illustrative examples of soil profiles with analytical data and accompanying interpretations. There is also a fascinating account of the special relationship that exists between South African animals and soil environments. Soils of South Africa should interest students and researchers in the earth, environmental and biological sciences, as well as environmental practitioners, farmers, foresters and civil engineers.
Author : World Bank
Publisher : World Bank Publications
Page : 222 pages
File Size : 16,97 MB
Release : 2008-01-08
Category : Business & Economics
ISBN : 0821373668
'Global Economic Prospects 2008: Technology Diffusion in the Developing World' examines the state of technology in developing countries and the pace with which it has advanced since the early 1990s. It reveals both encouraging and cautionary trends. On the one hand, the pace of technological progress in developing countries has been much faster than in high-income countries-reflecting increased exposure to foreign technology as a result of linkages with high-skilled diasporas and the opening of these countries to international trade and foreign direct investment.On the other hand, the technology gap remains large, and the domestic factors that determine how quickly technologies spread within developing countries often stymie progress, especially among low-income countries. This year's 'Global Economic Prospects' comes on the heels of an extended period of strong growth and a 15 year period of strong performance in much of the developing world, which has contributed to substantial declines in global poverty. While high oil prices and heightened market volatility may signal a coming pause in this process, over the longer term continued technological progress should continue to push back poverty. 'Rapid technological progress in developing countries has been central to the reduction of poverty in recent decades. While the integration of global markets has played and will continue to play a key role in this, future success will increasingly depend on strengthening technical competencies and the business environment for innovative firms in developing countries.' - Graeme Wheeler, Managing Director, The World Bank
Author : Mohammad Zaman
Publisher : Springer
Page : 183 pages
File Size : 16,30 MB
Release : 2018-11-28
Category : Nature
ISBN : 331996190X
This open access book is an outcome of the collaboration between the Soil and Water Management & Crop Nutrition Section, Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, Department of Nuclear Sciences and Applications, International Atomic Energy Agency (IAEA), Vienna, Austria, and Dr. Shabbir A Shahid, Senior Salinity Management Expert, Freelancer based in United Arab Emirates.The objective of this book is to develop protocols for salinity and sodicity assessment and develop mitigation and adaptation measures to use saline and sodic soils sustainably. The focus is on important issues related to salinity and sodicity and to describe these in an easy and user friendly way. The information has been compiled from the latest published literature and from the authors’ publications specific to the subject matter. The book consists of six chapters. Chapter 1 introduces the terms salinity and sodicity and describes various salinity classification systems commonly used around the world. Chapter 2 reviews global distribution of salinization and socioeconomic aspects related to salinity and crop production. Chapters 3 covers comprehensively salinity and sodicity adaptation and mitigation options including physical, chemical, hydrological and biological methods. Chapter 4 discusses the efforts that have been made to demonstrate the development of soil salinity zones under different irrigation systems. Chapter 5 discusses the quality of irrigation water, boron toxicity and relative tolerance to boron, the effects of chlorides on crops. Chapter 6 introduces the role of nuclear techniques in saline agriculture.
Author : Rattan Lal
Publisher : CRC Press
Page : 351 pages
File Size : 18,33 MB
Release : 2016-09-19
Category : Nature
ISBN : 1482257858
Phosphorus is an essential plant nutrient, but global population growth has dramatically reduced the availability of phosphorus fertilizer resources. Despite this scarcity, there remain numerous problems associated with the excessive and inappropriate use of phosphorus leading to non-point source pollution and eutrophication of natural waters. Identifying appropriate systems for managing soil phosphorus and reducing the risks of eutrophication are needed to minimize the environmental risks. This book focuses on the availability and recycling of phosphorus; regulatory and policy issues of sustainable phosphorus use; and water quality management in agroecosystems pertaining to phosphorus. Sections are dedicated to global phosphorus reserves; cycling and pathways of phosphorus; phosphorus in agriculture; human dimensions and policy intervention; and research and development priorities. Phosphorus is a finite but crucial resource and is an essential element to all life. Sub-optimal availability and nutrient imbalance in the root zone can adversely impact plant growth, and the quality of food and feed grown on these soils. However, the proven reserves of phosphorus can hardly be adequate for a few centuries only. Yet, its misuse and mismanagement has caused severe problems of eutrophication of water and pollution of the environment. Thus, judicious management of soil phosphorus is essential. This volume is specifically devoted to availability and recycling of phosphorus, regulatory/policy issues of sustainable use of phosphorus, and management in agroecosystems in the context of maximizing the use efficiency and minimizing the environmental risks of water quality.
Author : J. S. Glendinning
Publisher :
Page : 170 pages
File Size : 41,94 MB
Release : 2000
Category : Science
ISBN :
This manual aims to provide the user with a working knowledge of agronomic terms, soil-plant relationships, the principles of fertilizer use and lime use and a fuller knowledge of soil fertility. Environmental issues are addressed and an overview of techniques in precision agriculture brings the reader up-to-date with the use of the latest technology in the industry.
Author : Steven M. Colman
Publisher : Academic Press
Page : 626 pages
File Size : 24,28 MB
Release : 1986-02-28
Category : Science
ISBN :
Researchers in geomorphology, geochemistry, quaternary geology, soil science, and mineralogy will welcome this volume, the first to focus exclusively on rates of silicate chemical weathering. Consisting largely of previously unpublished data from six countries, the volume examines the latest experimental, modelling, and field results. New information is presented on topics of current research interest, including inferences about chemical mechanisms at the level of mineral surfaces, and data relating weathering rates to landscape evolution over millions of years. The volume integrates the variety of approaches used by diverse subdisciplines in the assessment of weathering rates, and provides up-to-date references.
Author : Pandi Zdruli
Publisher : Springer Science & Business Media
Page : 656 pages
File Size : 26,36 MB
Release : 2010-07-20
Category : Nature
ISBN : 9048186579
Land Degradation and Desertification: Assessment, Mitigation, and Remediation reports research results in sustainable land management and land degradation status and mitigation in 36 countries around the world. It includes background papers with continental and international perspectives dealing with land degradation and desertification studies. The book assembles various topics of interest for a large audience. They include carbon sequestration and stocks, modern techniques to trace the trends of land degradation, traditional and modern approaches of resource-base conservation, soil fertility management, reforestation, rangeland rehabilitation, land use planning, GIS techniques in desertification risk cartography, participatory ecosystem management, policy analyses and possible plans for action. Various climatic domains in Africa, Asia, Europe and The Americas are covered. The book will be of interest to a variety of environmental scientists, agronomists, national and international policy makers and a number of organizations dealing with sustainable management of natural resources.
Author : Food and Agriculture Organization of the United Nations
Publisher : Food & Agriculture Org.
Page : 360 pages
File Size : 30,55 MB
Release : 2021-09-08
Category : Technology & Engineering
ISBN : 9251349002
During the last decades, soil organic carbon (SOC) attracted the attention of a much wider array of specialists beyond agriculture and soil science, as it was proven to be one of the most crucial components of the earth’s climate system, which has a great potential to be managed by humans. Soils as a carbon pool are one of the key factors in several Sustainable Development Goals, in particular Goal 15, “Protect, restore and promote sustainable use of terrestrial ecosystems, sustainably manage forests, combat desertification and halt and reverse land degradation and halt biodiversity loss” with the SOC stock being explicitly cited in Indicator 15.3.1. This technical manual is the first attempt to gather, in a standardized format, the existing data on the impacts of the main soil management practices on SOC content in a wide array of environments, including the advantages, drawbacks and constraints. This manual presents different sustainable soil management (SSM) practices at different scales and in different contexts, supported by case studies that have been shown with quantitative data to have a positive effect on SOC stocks and successful experiences of SOC sequestration in practical field applications. Volume 5 includes 24 practices that have a direct impact on SOC sequestration and maintenance in forestry, wetlands and urban soils.
Author : Ravindra Soni
Publisher :
Page : 0 pages
File Size : 47,13 MB
Release : 2021
Category :
ISBN : 9789811629235
Plants and the soil they grow in, are confronted with severe biotic and abiotic stresses viz. nutrient starvation, salt stress, drought, flooding, xenobiotic contamination, in order to sustain in an ecosystem. They also shape the microbial composition in their vicinity by modulating their secretions. This book discusses the pressing demand for novel and potential microorganisms to support an environment-friendly and cost-effective way of stress management in the plants. The book summarizes the processes and mechanisms involved in microbe-assisted plant and soil stress management. It discusses the challenges and opportunities in the application of microbial interactions in plant health. It describes in detail the nutrient dynamics of different soil systems. It includes important topics like agriculturally important genes and enzymes, rhizosphere modeling & engineering, genetically engineered bio-inoculants etc. It also talks about the application of next-generation technologies, omics and nano-based technologies. In the recent years, more than 50% of agricultural production relies on chemical fertilizers, leading to serious health issues and environmental concerns. This book provides natural solutions to these environmental concerns. This book is useful for researchers and students in the field of microbiology, agriculture, soil biology and plant sciences.
