In keeping with the spirit of an Advanced Series in the Agricultural Sciences, we have attempted to address herein most of the current research areas being used to characterize, describe and manage salt-affected soils. Because of a certain amount of personal bias inherent in our individual viewpoints and backgrounds, some areas have been accorded more emphasis than others. It has been our goal, however, to provide either detail about, or at least a recent reference to, each major area of current soil salinity research. This information, coupled with what we hope to be a rather logical progression from descriptive material on equilibrium or near-equilibrium soil chemistry, through transport processes, to eventual management practices including some elementary economic decisions, should enable the reader to bridge the gap from introductory soil chemistry or soil physics texts to the basic literature of this area. The text will be perceived by the astute reader as somewhat uneven in its treatment of respective sections. We feel that this is to a certain extent appropriate, for it thus portrays the unevenness of progress to date in the corresponding areas of research. The management of saline and sodic soils remains largely an empirical semi-science or even art, whereas transport phenomena are normally dealt with in a much more theoretical (and also a much more highly mathematical) vein. Equilibrium soil chemistry has historically occupied an intermediate position with respect to its mix of empiricism and theoretical rigor.
Chemical criteria for salinity, sodicity, and alkalinity; classes of salt-affected soils; relation between profile morphology and the salt-affected soil classes; map units; influence of salt-affected soils on agricultural land use; soil profile and chemical data for the salt affected soil classes.
This edited volume focuses on the characterization, reclamation, bioremediation, and phytoremediation of salt affected soils and waterlogged sodic soils. Innovative technologies in managing marginal salt affected lands merit immediate attention in the light of climate change and its impact on crop productivity and environment. The decision-making process related to reclamation and management of vast areas of salt affected soils encompasses consideration of economic viability, environmental sustainability, and social acceptability of different approaches. The chapters in this book highlight the significant environmental and social impacts of different ameliorative techniques used to manage salt affected soils. Readers will discover new knowledge on the distribution, reactions, changes in bio-chemical properties and microbial ecology of salt affected soils through case studies exploring Indian soils. The contributions presented by experts shed new light on techniques such as the restoration of degraded lands by growing halophyte plant species, diversification of crops and introduction of microbes for remediation of salt infested soils, and the use of fluorescent pseudomonads for enhancing crop yields.
The complex issues involved in the management of saline and sodic turfgrass soils are enough to perplex even the most experienced site manager — there is no "silver bullet" amendment, treatment, or grass for salinity management. Best Management Practices for Saline and Sodic Turfgrass Soils: Assessment and Reclamation presents comprehensive scientific principles and detailed, practical management and assessment recommendations for turfgrass and landscape sites. The authors use the Best Management Practices (BMPs) concept, considered the gold-standard management approach for any individual environmental issue, since it is a whole ecosystem (holistic), science-based salinity management approach that allows all possible management options to be considered and implemented on a site-specific basis. They identify BMP strategies, including irrigation system design; irrigation scheduling and salinity leaching; chemical, physical, and biological amendments; cultivation; topdressing; soil modification; sand-capping; surface and subsurface drainage options; nutritional practices; additional cultural practices; and ongoing monitoring. The book presents emerging challenges, technology, and concepts that address integration of salinity management into comprehensive site environmental or sustainable management systems, use of halophytic turfgrasses for non-traditional purposes, integration of geospatial and geostatistical concepts and technology, and integration of new sensor technology into daily management paradigms. Outlining a holistic BMP approach, the book incorporates scientific principles and practical management recommendations and details specific salinity challenges and the logic behind each BMP strategy for salinity management, with an emphasis on actual field problems. The book is formatted for flexible use, with stand-alone chapters that include outlines for quick review of a topic for those requiring only a basic understanding as well as in-depth discussions of the science and practical aspects for those seeking a more rigorous treatment. It supplies a single source for all the information required to identify and manage diverse types of salinity stresses.
"Sodic soils cover almost a third of the total land in Australia and are represented to some extent on all continents except Antarctica. They can occur naturally, as in Australia, or may develop as a result of the removal of salts from saline soils." "Sodicity impacts adversely on many soil properties and interferes with the proper functioning of the soil and of the plants grown in it. Problems arise as a result of the deterioration in soil structure, decreased retention and availability of water, decreased nutrient availability and impaired biological activity. Sodic soils are easily eroded and this causes severe land degradation and pollution of water resources." "The management of sodic soils is often difficult and challenging. Because they are so widespread in Australia, their impact on productivity is immense." "Australian Sodic Soils: Distribution, Properties and Management brings together for the first time the results of scientific studies carried out in Australia and presented at the first national conference on Australian sodic soils."--BOOK JACKET.Title Summary field provided by Blackwell North America, Inc. All Rights Reserved
Origin,classification and distribution of salt-affected soils;saline soils and their management;sodic soils and their management;salinity problems of the dryland regions;water quality and crop production;socio-economic considerations in reclamation and management of salt-affectedsoils;
Written from an agronomic - rather than an engineering - perspective, this comprehensive, up-to-date introduction to soil and water conservation explores a full range of topics and environmental issues, including some ignored or overlooked in other books on the subject.*NEW - Gives more emphasis to water conservation and other environmental issues. *NEW - Contains a revised and updated discussion of soil-loss equations. - Includes the new computerized versions along with the paper versions. *NEW - Provides expanded coverage of water quality and conservation. - Introduces concepts with a section on the water cycle and world climate. *NEW - Divides coverage on Soil and Water Pollution into two full chapters - Soil Pollution, and Water Quality and Pollution. *NEW - Updates and expands literature citations and chapter-end reference lists. *Discusses the impact of erosion on civilization and how erosion occurs, both naturally and through human causes. *Covers the use of the soil-loss equations for water erosion and wind erosion in detail - an important base for management decisions regarding the most appropriate choices of conservation practices to solve erosion problems. - Uses forms
Explores the principles/properties of soils - their physical, chemical, and biological characteristics - and highlights the processes by which soils interact with the environment. It also considers construction engineering and landscape architecture applications of soil science principles.
For freshman/junior-level courses in Introductory Soil Science and Environmental Soil Science. Based on the most current scientific developments in all areas, this time-honored, broad introduction to soil sciences covers the complete spectrum of traditional and state-of-the-art soil topics e.g., taxonomy, soil formation, properties of soils, common soil problems and their solutions, evaluation of soils, pollution from use of soils, precision agriculture, GIS and GPS.
Excerpt from Extension Bulletin: November, 1897 A competent critic can render much practical service by noting errors that should be corrected. In addition to calling attention to the meaning and pronunciation of words, he should explain historical or other allusions not clear to all members, aid their memories by references to points brought out in previous study and put definitely before all the pivotal thought of each meeting. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
This current, comprehensive book provides up-to-date basic and applied information on new products, grasses, and techniques used to develop best management practices for golf courses. It covers available grasses, their selection and use, soils and soil amendments, pest management and IPM practices, and environmental concerns and strategies. The author and 27 acclaimed contributors share their expertise in areas ranging from turfgrass to environmental science.AN eight-part organization covers best turfgrasses for golf courses, best soil management practices, best golf course construction and establishment practices, best turfgrass fertilization practices, best golf course irrigation practices, best turfgrass management practices, best pest management and control practices, best pesticide and nutrient management and handling practices.For golf course superintendents, their staff, owners, and club officials.