Author : Lynette K. Abbott
Publisher : Springer Science & Business Media
Page : 267 pages
File Size : 47,89 MB
Release : 2007-10-23
Category : Nature
ISBN : 1402066198
It is becoming more relevant to explore soil biological processes in terms of their contribution to soil fertility. This book presents a comprehensive scientific overview of the components and processes that underpin the biological characteristics of soil fertility. It highlights the enormous diversity of life in soil and the resulting effects that management of land can have on the contribution of this diverse community to soil fertility in an agricultural context.
Author : Donald J. Childs
Publisher : Cambridge University Press
Page : 284 pages
File Size : 17,85 MB
Release : 2001-09-06
Category : Literary Criticism
ISBN : 9780521806015
In Modernism and Eugenics, first published in 2001, Donald Childs shows how Virginia Woolf, T. S. Eliot and W. B. Yeats believed in eugenics, the science of race improvement and adapted this scientific discourse to the language and purposes of the modern imagination. Childs traces the impact of the eugenics movement on such modernist works as Mrs Dalloway, A Room of One's Own, The Waste Land and Yeats's late poetry and early plays. The language of eugenics moves, he claims, between public discourse and personal perspectives. It informs Woolf's theorization of woman's imagination; in Eliot's poetry, it pictures as a nightmare the myriad contemporary eugenical threats to humankind's biological and cultural future. And for Yeats, it becomes integral to his engagement with the occult and his commitment to Irish Nationalism. This is an interesting study of a controversial theme which reveals the centrality of eugenics in the life and work of several major modernist writers.
Author : C. K. K. Gachene
Publisher :
Page : 172 pages
File Size : 28,14 MB
Release : 2003
Category : Soil fertility
ISBN :
Author : Alfred E. Hartemink
Publisher : CABI
Page : 380 pages
File Size : 17,51 MB
Release : 2003
Category : Technology & Engineering
ISBN : 9780851998497
Wide coverage of soils and perennial cropping systems in the tropicsSynthesis of decades of researchChallenges assumptions on the benefits of plantations for soil fertilityIt is generally assumed that soil fertility decline is widespread in the tropics and that this is largely associated with annual cropping and subsistence farming. In contrast, perennial plant cover (as in plantation agriculture) provides better protection for the soil.This book reviews these concepts, focusing on soil chemical changes under different land-use systems in the tropics. These include perennial crops, annual crops and forest plantations. Two case studies, on sisal plantations in Tanzania and sugar cane in Papua New Guinea, are presented for detailed analysis. The author demonstrates that soil fertility decline is also a problem on plantations.
Author : G. Schroth
Publisher : CABI
Page : 456 pages
File Size : 11,88 MB
Release : 2003-02-19
Category : Technology & Engineering
ISBN : 9780851997926
Annotation. Successful agroforestry requires an understanding of the complex relationship between trees, crops and soils. This book provides a review of both economic and biophysical aspects of soil use and research in agroforestry, with an emphasis on nutrient-poor forest and savanna soils. Key topics covered include the economics of soil fertility management, cycling of water, nutrients and organic matter, soil structure, and soil biological processes. The book combines synthetic overviews of research results and a review of methods used in research.From the foreword: 2The book is written within a particular context - soil fertility development under agroforestry. At first this may seem very specific and thus limited in appeal and application. But over the last decade or so agroforestry research has been one of the most influential in developing new insights into soil biology and fertility and thus provides a very suitable framework for review of progress. Furthermore the influence of trees on soil is profound and of significance beyond agroforestry systems, so the book is likely to be of interest in the wider spheres of agriculture, forestry and ecological sciences.3 Mike Swift, TSBF, Nairobi, Kenya.
Author : Johannes Lehmann
Publisher : Springer Science & Business Media
Page : 510 pages
File Size : 46,21 MB
Release : 2006-02-25
Category : Technology & Engineering
ISBN : 1402025971
Dark Earths are a testament to vanished civilizations of the Amazon Basin, but may also answer how large societies could sustain intensive agriculture in an environment of infertile soils. This book examines their origin, properties, and management. Questions remain: were they intentionally produced or a by-product of habitation. Additional new and multidisciplinary perspectives by leading experts may pave the way for the next revolution in soil management in the humid tropics.
Author : Nancy Collins Johnson
Publisher : Elsevier
Page : 526 pages
File Size : 48,26 MB
Release : 2016-11-03
Category : Science
ISBN : 0128043830
Mycorrhizal Mediation of Soil: Fertility, Structure, and Carbon Storage offers a better understanding of mycorrhizal mediation that will help inform earth system models and subsequently improve the accuracy of global carbon model predictions. Mycorrhizas transport tremendous quantities of plant-derived carbon below ground and are increasingly recognized for their importance in the creation, structure, and function of soils. Different global carbon models vary widely in their predictions of the dynamics of the terrestrial carbon pool, ranging from a large sink to a large source. This edited book presents a unique synthesis of the influence of environmental change on mycorrhizas across a wide range of ecosystems, as well as a clear examination of new discoveries and challenges for the future, to inform land management practices that preserve or increase below ground carbon storage. - Synthesizes the abundance of research on the influence of environmental change on mycorrhizas across a wide range of ecosystems from a variety of leading international researchers - Focuses on the specific role of mycorrhizal fungi in soil processes, with an emphasis on soil development and carbon storage, including coverage of cutting-edge methods and perspectives - Includes a chapter in each section on future avenues for further study
Author : Louis Milton Thompson
Publisher : McGraw-Hill Companies
Page : 516 pages
File Size : 39,53 MB
Release : 1973
Category : Technology & Engineering
ISBN :
Soil; Soil formation; Physical properties of soils; Soil water; Soil organic matter; Soil mnineralogy; Soil chemistry; Amending the soil; Fertilizers; Nitrogen; Phosphorus; Potassium; Calcium, Magnesium and Sulfur; The micronutrients; Variations in plant composition; Soil classification and survey; Land use and soil management; Water management; Soil conservation; Soil pollution.
Author : Yeqiao Wang
Publisher : CRC Press
Page : 640 pages
File Size : 25,58 MB
Release : 2020-05-19
Category : Nature
ISBN : 0429819048
Authored by world-class scientists and scholars, The Handbook of Natural Resources, Second Edition, is an excellent reference for understanding the consequences of changing natural resources to the degradation of ecological integrity and the sustainability of life. Based on the content of the bestselling and CHOICE-awarded Encyclopedia of Natural Resources, this new edition demonstrates the major challenges that the society is facing for the sustainability of all well-being on the planet Earth. The experience, evidence, methods, and models used in studying natural resources are presented in six stand-alone volumes, arranged along the main systems of land, water, and air. It reviews state-of-the-art knowledge, highlights advances made in different areas, and provides guidance for the appropriate use of remote sensing and geospatial data with field-based measurements in the study of natural resources. Volume 2, Landscape and Land Capacity, covers soils and landscape issues, their diversity and importance, and how soils are related to the landscapes in which they form. It includes discussions on land conservation, land-use and land-cover changes, and urban environments and unravels the complex bond between humans and soils. New in this edition are discussions on habitat conservation and planning, landscape epidemiology and vector-borne disease, and landscape patterns and changes. This volume demonstrates the key processes, methods, and models used through several practical case studies from around the world. Written in an easy-to-reference manner, The Handbook of Natural Resources, Second Edition, as individual volumes or as a complete set, is an essential reading for anyone looking for a deeper understanding of the science and management of natural resources. Public and private libraries, educational and research institutions, scientists, scholars, and resource managers will benefit enormously from this set. Individual volumes and chapters can also be used in a wide variety of both graduate and undergraduate courses in environmental science and natural science at different levels and disciplines, such as biology, geography, earth system science, and ecology.
Author : Thomas J. Goreau
Publisher : CRC Press
Page : 630 pages
File Size : 28,39 MB
Release : 2014-12-19
Category : Nature
ISBN : 146659540X
A Practical, Get-Your-Hands-in-the-Soil ManualGlobal climate change, increasing pollution, and continued rapid population growth is wreaking havoc on the planet. Stabilizing the environment at safe levels requires a large-scale restoration of damaged ecosystems. Geotherapy: Innovative Methods of Soil Fertility Restoration, Carbon Sequestration, and
