Tag: Soils

Free Download Sandy Soils (Progress in Soil Science)
English | 2024 | ISBN: 3031502841 | 520 Pages | PDF EPUB (True) | 63 MB
Sandy soils cover approximately 900 million ha worldwide, and there are extensive areas of sandy soils under cultivation. Most sandy soils have high water permeability, low water-holding capacity, low ability to retain and exchange nutrients, weakly developed soil structure and they may be prone to erosion by wind. As irrigation is required for obtaining good crop yields, there is a risk of substantial leaching of nutrients and pesticides, and ground water depletion. Due to global pressure on land resources, marginal soils such as sandy soils are taken into production or cultivated more intensely. Sandy soils – as a group of soils with specific characteristics and ecological limitations – have received limited research attention. This books presents the main papers from the Global Conference on Sandy Soils which was held in June 2023 in Madison, USA. This book focuses on novel and exciting aspects of research on sandy soils which is presented into three sections: Distribution and Assessment, Soil Carbon and Soil Health, and Water and the Environment. It presents a global glimpse on what recent progress has been in the study of sandy soil and their properties and management.

Free Download Kathleen Woida, "Iowa’s Remarkable Soils: The Story of Our Most Vital Resource and How We Can Save It "
English | ISBN: 1609387503 | 2021 | 256 pages | EPUB, PDF | 64 MB + 21 MB
Sometimes called "black gold," Iowa’s deep, rich soils are a treasure that formed over thousands of years under the very best of the world’s grasslands-the tallgrass prairie. The soils are diverse and complex and hold within them a record not only of Iowa’s prehistoric past, but also of the changes that took place after settlers utterly transformed the land, as well as the ongoing adjustments taking place today due to climate change. In language that is scientifically sound but accessible to the layperson, Kathleen Woida explains how soils formed and have changed over centuries and millennia in the land between two rivers.

Free Download Bottom Soils, Sediment, and Pond Aquaculture by Claude E. Boyd
English | 1995 | ISBN: 1461357209 | 348 Pages | PDF | 8.6 MB
Aquaculture pond managers measure water-quality variables and attempt to maintain them within optimal ranges for shrimp and fish, but surprisingly little attention is paid to pond soil condition.

Free Download Managing Organic Matter in Tropical Soils: Scope and Limitations: Proceedings of a Workshop organized by the Center for Development Research at the University of Bonn (ZEF Bonn) – Germany, 7-10 June, 1999 By C. Martius, H. Tiessen, P. L. G. Vlek (auth.), C. Martius, H. Tiessen, P. L. G. Vlek (eds.)
2001 | 236 Pages | ISBN: 9048159474 | PDF | 8 MB
Soil organic matter is a reservoir for plant nutrients, provides water-holding capacity, stabilizes soil structure against compaction and erosion, and thus determines soil productivity. All agriculture to some degree depends on soil organic matter. It has long been known that soil organic matter declines when land is taken into cultivation, and that the productivity of new agricultural land is governed by fertility contributions from decomposing natural organic matter. The expansion of agriculture to ever new and more fragile lands, particularly in tropical and developing regions, causes environmental degradation with local effects on soil quality, regional effects on landscape integrity and water quality, and global effects on carbon cycles and the atmosphere. This book summarizes current knowledge of the properties and dynamics of soil organic matter in the tropics, its role in determining soil quality, its stability and turnover, and the options for management in the context of tropical landuse systems, for a readership of resource scientists, economists and advanced students. Maintenance of organic matter is critical for preventing land degradation. Case studies and practical applications are therefore an important part of the book, as are the exploration of future directions in research and management.

Free Download The Soils of Mississippi
English | 2023 | ISBN: 3031362349 | 207 Pages | PDF (True) | 29 MB
This book capitalizes on data collected by the Natural Resources Conservation Service & other organizations over the past 100+ years & offers the first comprehensive treatment of Mississippi soils. Main topics include the history of soil studies; soil-forming factors; general soil regions; taxonomic soil regions; soil-forming processes; benchmark, endemic, rare, & endangered soils; land use; key environmental issues; & yield potential of Mississippi soils. The book contains over 100 photographs of soils, vegetation, & land use & should be of interest to planners & students interested in soil science & allied disciplines.

Free Download Olafur Arnalds, "The Soils of Iceland "
English | ISBN: 9401796203 | 2015 | 200 pages | AZW3 | 13 MB
In this new volume in the World Soil series, the various types of Icelandic soils, their different characteristics, their formation, degradation and erosion are reviewed. At the same time, the book also deals with the agriculture and land use in general to give a complete view of Icelandic soils. The first part details the natural parameters such as the climate and the geography of Iceland. It also explains Icelandic geology, which is the major parameter controlling the soil formation in this country. The author describes the formation of Iceland, the main volcanic systems, central volcanoes, tephra production and its influence on the soils. Explanations on rocks, glaciers, rivers and other main geologic features are also given. The book continues with a description of the Icelandic geomorphology, giving insights on the main surface types, frost, cryoturbation and other cryogenic features. Then it details the different types of soils, their formation and main features, comparing the Icelandic soils to other soils elsewhere in the world. Erosion and land degradation are then reviewed, including the exceptionally active wind erosion and dust production. Finally, it gives an insight on land use, agriculture and vegetation types. All this accompanied by the most amazing photos to illustrate the great diversity of Icelandic Soil.

Free Download The Soils of Aotearoa New Zealand by Allan E. Hewitt
English | EPUB | 2021 | 339 Pages | ISBN : 3030647617 | 348.2 MB
This book offers an introduction to the soils of Aotearoa New Zealand, structured according to the New Zealand soil classification system. Starting with an overview of the importance and distribution of New Zealand soils, it subsequently provides essential information on each of the 15 New Zealand soil orders in separate chapters.

Free Download Cultural Understanding of Soils: The importance of cultural diversity and of the inner world
English | 2023 | ISBN: 3031131681 | 940 Pages | PDF EPUB (True) | 58 MB
Cultural understandings of soil are diverse and often ambiguous. Cultural framing of soils is common worldwide and is highly consequential. The implications of what place the earth has in people’s world view and everyday life can be in line with or in conflict with natural conditions, with scientific views, or with agricultural practices. The main assumption underlying this work is that soil is inescapably perceived in a cultural context by any human. This gives emergence to different significant webs of meaning influenced by religious, spiritual, or secular myths, and by a wide range of beliefs, values and ideas that people hold in all societies. These patterns and their dynamics inform the human-soil relationship and how soils are cared for, protected, or degraded.

Free Download Blaire Steven, "The Biology of Arid Soils "
English | ISBN: 311041998X | 2017 | 183 pages | EPUB, PDF | 23 MB + 3 MB
This book aims to bring together a wide variety of topics ranging from the abiotic and biological factors that shape arid soil environments and the development of initial soils. The book considers different levels of biological organization, the movement of nutrients through these systems, and how these soils will respond to a changing climate.

Free Download Unsaturated Soils for Asia By H, Raharjdo(Editor)
2000 | 872 Pages | ISBN: 9058091392 | PDF | 71 MB
This is a collection of articles from the Asian conference UNSAT-ASIA 2000, covering topics such as: historical developments; numerical modelling; suction measurement techniques; permeability and flow; mass transport; and engineering applications.