The Soils of Japan - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook The Soils of Japan write by Ryusuke Hatano. This book was released on 2021-02-18. The Soils of Japan available in PDF, EPUB and Kindle. This book provides an overview of the distribution, properties, and function of soils in Japan. First, it offers general descriptions of the country’s climate, geology, geomorphology, and land use, the history of the Japanese soil classification system and characteristics and genesis of major soil types follow. For each region – a geographic/administrative region of the country – there is a chapter with details of current land use as well as properties and management challenges of major soils. Maps of soil distribution, pedon descriptions, profile images, and tables of properties are included throughout the text and appendices.
Soil, Fertilizer, and Plant Silicon Research in Japan
Soil, Fertilizer, and Plant Silicon Research in Japan - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Soil, Fertilizer, and Plant Silicon Research in Japan write by Jian Feng Ma. This book was released on 2002-08-09. Soil, Fertilizer, and Plant Silicon Research in Japan available in PDF, EPUB and Kindle. Silicon (Si) plays a significant role in the resistance of plants to multiple stresses including biotic and abiotic stresses. Silicon is also the only element that does not damage plants when accumulated in excess. However, the contribution of Si to plant growth has been largely ignored due to its universal existence in the earth's crust. From numerous intensive studies on Si, initiated in Japan about 80 years ago, Japanese scientists realized that Si was important for the healthy growth of rice and for stability of rice production. In a worldwide first, silicon was recognized as a valuable fertilizer in Japan. The beneficial effects of Si on rice growth in particular, are largely attributable to the characteristics of a silica gel that is accumulated on the epidermal tissues in rice. These effects are expressed most clearly under high-density cultivation systems with heavy applications of nitrogen. Si is therefore recognized now as an ''agronomically essential element'' in Japan.Recently, Si has become globally important because it generates resistance in many plants to diseases and pests, and may contribute to reduced rates of application of pesticides and fungicides. Silicon is also now considered as an environment-friendly element. The achievements of Si research in Japan are introduced in this book, in relation to soils, fertilizers and plant nutrition.
Anthropogenic Soils in Japan
Anthropogenic Soils in Japan - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Anthropogenic Soils in Japan write by Makiko Watanabe. This book was released on 2018-10-11. Anthropogenic Soils in Japan available in PDF, EPUB and Kindle. This book enhances the discussion of anthropized soils with photographs of soil profiles and provides general information about soils in Japan, using data on their physical and chemical properties. Soils targeted in this book have wide spectra in anthropized influences from lesser effects such as agricultural improvements to drastic changes caused by infrastructure construction. These include soils sealed by technic hard materials, on ski slopes, on river embankments and coastal berms, in historical urban parks, on man-made islands in Tokyo Bay, in reclaimed lands, in greenhouse fields, and those filling in swamplands. These examples supported with data can be a bridge between agriculture and civil engineering to understand how anthropogenic activities influence soils. Because anthropogenic impacts have increased during the past decades along with concentrations of populations into cities, processes in soils must be addressed from the point of view of diverse land-use purposes. The book includes information with new data produced by active researchers from many institutes and universities as it refers to soils altered by human activities and thus is informative to specialists in various disciplines related to soils. It is also valuable to students for viewing soils in cities, infrastructure construction areas, and other affected locations. Evaluation and understanding of soils now has become essential for researchers in a range of fields and for policy makers in agriculture as well as urban planning, civil engineering, and disaster sciences. This work serves as an impetus for launching further study of soils and environments.
Volcanic Ash Soils
Volcanic Ash Soils - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Volcanic Ash Soils write by S. Shoji. This book was released on 1994-01-06. Volcanic Ash Soils available in PDF, EPUB and Kindle. Volcanic eruptions are generally viewed as agents of destruction, yet they provide the parent materials from which some of the most productive soils in the world are formed. The high productivity results from a combination of unique physical, chemical and mineralogical properties. The importance and uniqueness of volcanic ash soils are exemplified by the recent establishment of the Andisol soil order in Soil Taxonomy. This book provides the first comprehensive synthesis of all aspects of volcanic ash soils in a single volume. It contains in-depth coverage of important topics including terminology, morphology, genesis, classification, mineralogy, chemistry, physical properties, productivity and utilization. A wealth of data (37 tables, 81 figures, and Appendix) mainly from the Tohoku University Andisol Data Base is used to illustrate major concepts. Twelve color plates provide a valuable visual-aid and complement the text description of the world-wide distribution for volcanic ash soils.This volume will serve as a valuable reference for soil scientists, plant scientists, ecologists and geochemists interested in biogeochemical processes occurring in soils derived form volcanic ejecta.
Sclerotia Grains in Soils
Sclerotia Grains in Soils - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Sclerotia Grains in Soils write by Makiko Watanabe. This book was released on 2021-02-12. Sclerotia Grains in Soils available in PDF, EPUB and Kindle. This book introduces what sclerotia grains are, and where and how they exist in soils, by compiling the results obtained from the studies on fungal sclerotia formed by Cenococcum geophilum (Cg) and related species, the visible black small grains persistent for a few thousand to ten thousands of years in forest soils and sediments. The chapters contain the results and discussions on the ecological distribution and regulating factors, characteristics, and function of Cg sclerotia grains, carried out by researchers from soil geography, soil science, soil microbiology, physiology, forestry, analytical chemistry, environmental chemistry, material science, and related disciplines. The anatomy of sclerotia grains in soil was realized in terms of interdisciplinary joint researches, which resulted in deepening understanding of the ecological function of the mesoscale organic component in soils. This book covers the natural history of sclerotia in soils, pedo-sclerotiology.
