This book provides an extensive overview of the diversity of soils in Georgia. It highlights the soil-forming environment (climate, geology, geomorphology), the characterization of the physical, chemical and morphological (macro-, micro-) properties of soils, the history of soil research in Georgia, and the geographic distribution of different soil types. In addition to describing the soil cover, the book also zones and classifies the soils. Past and current land use issues, ecological properties and implications of soils, and many other aspects are elaborated on; special attention is paid to anthropogenic soil degradation due to the contamination and erosion of soils in Georgia. This comprehensive and richly illustrated book, which includes a wealth of pictures and soil maps, offers an essential field guide for soil scientists, geographers and researchers in related areas.
This book describes a wide range of soils, from the humid subtropical coast of the Black Sea to the frozen peaks of the High Caucasus with more than 5.000 meters above sea level and from extremely humid areas in the West to dry, semi-desert regions in the East, with an enormous variety of rock parent materials, a very accentuated hydrology and a topography, ranging from large plains, hilly regions to steep and strongly dissected slopes and gorges in the High and Lower Caucasus. There is no other country in the world the size of Georgia with such a variety of soil forming conditions and soils. Therefore, V V Dokuchaev, one of the founders of the genetic soil classification, called Georgia an "Open-Air Museum of Soils". The book is subdivided into 6 chapters. In Chapter 1, the physiography of Georgia and the factors of soil formation such as topography, geology, climate and vegetation are described, followed by Chapter 2, with the detailed description of 21 soil groups, their morphological, physical and chemical characteristics, their many different subtypes and variations, and their ecology, based on 72 tables, 25 figures and 20 photos. Moreover, the location of each soil and its surface in % of the total surface of Georgia are explained, including the history of their discovery and investigation together with the relevant literature. In Chapter 3, the overall ecological conditions, especially problems of soil erosion by water and wind and the soil contamination by heavy metals and radionuclides are described, followed by Chapter 4 with an explanation of the soil use, based on physical and chemical soil characteristics. Two further chapters with references and soil photos conclude the book, which is written by Professor Tengiz F Urushadze from the Agricultural University of Georgia in Tbilisi and Professor Winfried E H Blum from the University of Natural Resources and Life Sciences (BOKU) in Vienna, Austria.
This book provides a comprehensive overview of the geomorphology of Georgia. It describes a country characterized by geological, geomorphological and geographical diversities, located in the Caucasus region at the crossroads of Europe and Asia. This book is based on the results of several years of geomorphological studies and research in Georgia, published for the first time in English, and covers a gap in research in the field of world regional geomorphology. The landscapes of Georgia consist of high glacial mountains, medium and high mountains with deeply fragmented features, narrow and deep gorges and canyons, seaside lowlands, volcanic cones, uplands and mountain ranges, intermountain plains, hollows and highlands. The peculiarity of the landscape greatly affects the natural conditions. In several chapters, this book describes the diversity of climate, hydrographic network, vegetation cover, soils, fauna, exogenic processes, natural and anthropogenic landscapes. This volume provides the readers with the opportunity to explore the variety of landscapes and landforms in this diverse and fascinating country through informative texts illustrated with many color maps and photographs. Geomorphology of Georgia appeals to scientists, scholars, teachers and any readers interested in geology, physical geography, geomorphology, tourism and environmental protection. It is a rich resource for field trips and a comprehensive guide for travelers interested in the geomorphology of Georgia.
The first soil survey in the Philippines was done by Mr. Clarence Dorsey, an American soil scientist in the province of Batangas in 1903. The Soils of the Philippines, however, is the first comprehensive summary of more than a century of soil-survey work in this country. It integrates the soil concepts of the reconnaissance soil-survey results, which commenced as early as 1934 and continued until the mid 1960s, with the semi-detailed soil surveys that continue to this day. The result is the first-ever genetic key for classifying Philippine soils at soil series level; thus, making it possible for any newcomers to the soil survey field to confidently produce their own soil map, at a more detailed map scale, to suit the project requirements. This book brings together discussions on soils and soil mapping units and up-to-date international techniques and technologies. It makes soils relevant to current political realities and national issues. As soil survey moves from a reductionist agricultural-development planning tool to a more holistic and integrated approach, to enable us to understand our dynamic and complex environment, The Soils of the Philippines will be the only source of authoritative and updated data on soil resources for macro-level resource management planning for decades to come. With a vanishing breed of experienced soil surveyors, not only in the Philippines but also worldwide, it may remain the only book on Philippine soils for the next hundred years or more. Since soils follow a geological and not a human time frame, the contents of this volume will stay relevant for soil surveyors even in a fast changing world. As the country leaps from an agricultural economy towards modernization and a more diversified economic base, some of the soil series in the Philippines, for example the Guadalupe series underlying the skyscrapers of Makati City, are becoming extinct as a result of urban development. Therefore, this book serves as the repository for the soils that we possess, the soils that have been lost through decades of urbanization while, at the same time, it creates a soil classification system for the soils we are yet to discover.
The Natural Communities of Georgia presents a comprehensive overview of the state’s natural landscapes, providing an ecological context to enhance understanding of this region’s natural history. Georgia boasts an impressive range of natural communities, assemblages of interacting species that have either been minimally impacted by modern human activities or have successfully recovered from them. This guide makes the case that identifying these distinctive communities and the factors that determine their distribution are central to understanding Georgia’s ecological diversity and the steps necessary for its conservation. Within Georgia’s five major ecoregions the editors identify and describe a total of sixty-six natural communities, such as the expansive salt marshes of the barrier islands in the Maritime ecoregion, the fire-driven longleaf pine woodlands of the Coastal Plain, the beautiful granite outcrops of the Piedmont, the rare prairies of the Ridge and Valley, and the diverse coves of the Blue Ridge. With contributions from scientists who have managed, researched, and written about Georgia landscapes for decades, the guide features more than four hundred color photographs that reveal the stunning natural beauty and diversity of the state. The book also explores conservation issues, including rare or declining species, current and future threats to specific areas, and research needs, and provides land management strategies for preserving, restoring, and maintaining biotic communities. The Natural Communities of Georgia is an essential reference for ecologists and other scientists, as well as a rich resource for Georgians interested in the region’s natural heritage.
Soils and Landscape Restoration provides a multidisciplinary synthesis on the sustainable management and restoration of soils in various landscapes. The book presents applicable knowledge of above- and below-ground interactions and biome specific realizations along with in-depth investigations of particular soil degradation pathways. It focuses on severely degraded soils (e.g., eroded, salinized, mined) as well as the restoration of wetlands, grasslands and forests. The book addresses the need to bring together current perspectives on land degradation and restoration in soil science and restoration ecology to better incorporate soil-based information when restoration plans are formulated. - Incudes a chapter on climate change and novel ecosystems, thus collating the perspective of soil scientists and ecologists on this consequential and controversial topic - Connects science to international policy and practice - Includes summaries at the end of each chapter to elucidate principles and key points
During the last four decades, tremendous advances have been made towards the understanding of transport characteristics of contaminants in soils, solutes, and tracers in geological media. Transport & Fate of Chemicals in Soils: Principles & Applications offers a comprehensive treatment of the subject complete with supporting examples of mathematical models that describe contaminants reactivity and transport in soils and aquifers. This approach makes it a practical guide for designing experiments and collecting data that focus on characterizing retention as well as release kinetic reactions in soils and contaminant transport experiments in the laboratory, greenhouse), and in the field. The book provides the basic framework of the principals governing the sorption and transport of chemicalsin soils. It focuses on physical processes such as fractured media, multiregion, multiple porosities, and heterogeneity and effect of scale as well as chemical processes such as nonlinear kinetics, release and desorption hysteresis, multisite and multireaction reactions, and competitive-type reactions. The coverage also includes details of sorption behavior of chemicals with soil matrix surfaces as well the integration of sorption characteristics with mechanisms that govern solute transport in soils. The discussions of applications of the principles of sorption and transport are not restricted to contaminants, but also include nitrogen, phosphorus, and trace elements including essential micronutrients, heavy metals, military explosives, pesticides, and radionuclides. Written in a very clear and easy-to-follow language by a pioneer in soil science, this book details the basic framework of the physical and chemical processes governing the transport of contaminants, trace elements, and heavy metals in soils. Highly practical, it includes laboratory methods, examples, and empirical formulations. The approach taken by the author gives you not only the fundamentals of understanding of reactive chemicals retention and their transport in soils and aquifers, but practical guidance you can put to immediate use in designing experiments and collecting data.
The book describes richness and diversity of Georgia’s vegetation. Contrasting ecosystems coexist on the relatively small territory of the country and include semi-deserts in East Georgia, Colchic forests with almost sub-tropical climate in West Georgia and subnival plant communities in high mountains. West Georgia lacks xerophilous vegetation zone and mesophilous forest vegetation spreads from the sea level to subalpine zone. The Colchic refugium (West Georgia) ensured survival of the Tertiary’s mesophilous forest flora. Vertical profile of the vegetation is more complex in East Georgia with semi-desert, steppe and arid open forest zone. In South Georgia the montane zone represented by montane steppe is devoid of forests
