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Author : Neil Thomas
Publisher : Unknown
Page : 19 pages
File Size : 47,6 Mb
Release : 1991
Category : Population
ISBN : OCLC:29418830
Author : National Research Council,Division of Behavioral and Social Sciences and Education,Center for Economics, Governance, and International Studies,Committee on the Human Dimensions of Global Change,Panel on New Research on Population and the Environment
Publisher : National Academies Press
Page : 345 pages
File Size : 51,9 Mb
Release : 2005-10-15
Category : Social Science
ISBN : 9780309096553
Population, Land Use, and Environment: Research Directions offers recommendations for future research to improve understanding of how changes in human populations affect the natural environment by means of changes in land use, such as deforestation, urban development, and development of coastal zones. It also features a set of state-of-the-art papers by leading researchers that analyze population-land useenvironment relationships in urban and rural settings in developed and underdeveloped countries and that show how remote sensing and other observational methods are being applied to these issues. This book will serve as a resource for researchers, research funders, and students.
Author : National Academy of Sciences,Chinese Academy of Sciences,Indian National Science Academy
Publisher : National Academies Press
Page : 323 pages
File Size : 45,5 Mb
Release : 2001-06-12
Category : Social Science
ISBN : 9780309170727
As the world's population exceeds an incredible 6 billion people, governmentsâ€"and scientistsâ€"everywhere are concerned about the prospects for sustainable development. The science academies of the three most populous countries have joined forces in an unprecedented effort to understand the linkage between population growth and land-use change, and its implications for the future. By examining six sites ranging from agricultural to intensely urban to areas in transition, the multinational study panel asks how population growth and consumption directly cause land-use change, and explore the general nature of the forces driving the transformations. Growing Populations, Changing Landscapes explains how disparate government policies with unintended consequences and globalization effects that link local land-use changes to consumption patterns and labor policies in distant countries can be far more influential than simple numerical population increases. Recognizing the importance of these linkages can be a significant step toward more effective environmental management.
Author : Food and Agriculture Organization of the United Nations
Publisher : Routledge
Page : 332 pages
File Size : 45,8 Mb
Release : 2013-06-17
Category : Law
ISBN : 9781136498879
The State of the World's Land and Water Resources for Food and Agriculture is FAO's first flagship publication on the global status of land and water resources. It is an 'advocacy' report, to be published every three to five years, and targeted at senior level decision makers in agriculture as well as in other sectors. SOLAW is aimed at sensitizing its target audience on the status of land resources at global and regional levels and FAO's viewpoint on appropriate recommendations for policy formulation. SOLAW focuses on these key dimensions of analysis: (i) quantity, quality of land and water resources, (ii) the rate of use and sustainable management of these resources in the context of relevant socio-economic driving factors and concerns, including food security and poverty, and climate change. This is the first time that a global, baseline status report on land and water resources has been made. It is based on several global spatial databases (e.g. land suitability for agriculture, land use and management, land and water degradation and depletion) for which FAO is the world-recognized data source. Topical and emerging issues on land and water are dealt with in an integrated rather than sectoral manner. The implications of the status and trends are used to advocate remedial interventions which are tailored to major farming systems within different geographic regions.
Author : Nteranya Sanginga,Paul L. Woomer
Publisher : CIAT
Page : 270 pages
File Size : 42,6 Mb
Release : 2009
Category : Soil fertility
ISBN : 9789290592617
Forward. A call for integrated soil fertility management in Africa. Introduction. ISFM and the African farmer. Part I. The principles of ISFM: ISFM as a strategic goal, Fertilizer management within ISFM, Agro-minerals in ISFM, Organic resource management, ISFM, soil biota and soil health. Part II. ISFM practices: ISFM products and fields practices, ISFM practice in drylands, ISFM practice in savannas and woodlands, ISFM practice in the humid forest zone, Conservation Agriculture. Part III. The process of implementing ISFM: soil fertility diagnosis, soil fertility management advice, Dissemination of ISFM technologies, Designing an ISFM adoption project, ISFM at farm and landscape scales. Part IV. The social dimensions of ISFM: The role of ISFM in gender empowerment, ISFM and household nutrition, Capacity building in ISFM, ISFM in the policy arena, Marketing support for ISFM, Advancing ISFM in Africa. Appendices: Mineral nutrient contents of some common organic resources.
Author : Roger Jeffery,Patricia Jeffery
Publisher : Cambridge University Press
Page : 298 pages
File Size : 54,8 Mb
Release : 1997-07-13
Category : Business & Economics
ISBN : 0521466539
Roger and Patricia Jeffery are well known for their work on religion and gender in South Asia. In their latest book, a study of the demographic processes of two castes in rural north India, they ask why fertility levels are higher among the Muslim Sheikhs than the Hindu Jats. They conclude that explanations can only partially be attributed to gender relationships and religion, and it is the economic and political interests of both groups which are the defining factors. Their marginal economic position provides little incentive for the Sheikhs to raise small families, while the Jats, who are locally dominant, are encouraged to use birth control and educate their children. The authors go on to demonstrate the significance of this analysis for a wider understanding of the problems of population and politics in India generally. The book will be invaluable for students of South Asia and for anyone interested in the demography of developing countries.
Author : James W. Wood
Publisher : Cambridge University Press
Page : 519 pages
File Size : 46,7 Mb
Release : 2020-04-23
Category : Business & Economics
ISBN : 9781107033412
An exploration of preindustrial agriculture that applies insights from biodemography, physiological ecology, and household demography.
Author : Lynette K. Abbott,Daniel V. Murphy
Publisher : Springer Science & Business Media
Page : 267 pages
File Size : 51,8 Mb
Release : 2007-10-23
Category : Nature
ISBN : 9781402066191
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 : J. Benton Jones Jr.
Publisher : CRC Press
Page : 230 pages
File Size : 47,5 Mb
Release : 2012-02-13
Category : Science
ISBN : 9781439816103
Like all living things, plants require nutrient elements to grow. The Plant Nutrition Manual describes the principles that determine how plants grow and discusses all the essential elements necessary for successful crop production. The nutritional needs of plants that add color and variety to our visual senses are addressed as well. Altogether, nut
Author : National Research Council,Division of Behavioral and Social Sciences and Education,Commission on Behavioral and Social Sciences and Education,Committee on Population
Publisher : National Academies Press
Page : 172 pages
File Size : 54,5 Mb
Release : 1989-02-01
Category : Medical
ISBN : 9780309040969
These four papers supplement the book Contraception and Reproduction: Health Consequences for Women and Children in the Developing World by bringing together data and analyses that would otherwise be difficult to obtain in a single source. The topics addressed are an analysis of the relationship between maternal mortality and changing reproductive patterns; the risks and benefits of contraception; the effects of changing reproductive patterns on infant health; and the psychosocial consequences to women of controlled fertility and contraceptive use.
Author : Daniel C. Esty
Publisher : Yale University Press
Page : 416 pages
File Size : 41,9 Mb
Release : 2019-10-22
Category : Nature
ISBN : 9780300248890
A practical, bipartisan call to action from the world’s leading thinkers on the environment and sustainability Sustainability has emerged as a global priority over the past several years. The 2015 Paris Agreement on climate change and the adoption of the seventeen Sustainable Development Goals through the United Nations have highlighted the need to address critical challenges such as the buildup of greenhouse gases in the atmosphere, water shortages, and air pollution. But in the United States, partisan divides, regional disputes, and deep disagreements over core principles have made it nearly impossible to chart a course toward a sustainable future. This timely new book, edited by celebrated scholar Daniel C. Esty, offers fresh thinking and forward-looking solutions from environmental thought leaders across the political spectrum. The book’s forty essays cover such subjects as ecology, environmental justice, Big Data, public health, and climate change, all with an emphasis on sustainability. The book focuses on moving toward sustainability through actionable, bipartisan approaches based on rigorous analytical research.
Author : United Nations Publications
Publisher : Unknown
Page : 44 pages
File Size : 46,5 Mb
Release : 2019-07-23
Category : Political Science
ISBN : 9211483166
The United Nations population estimates and projections form a comprehensive set of demographic data to assess population trends at the global, regional and national levels. They are used in the calculation of many of the key development indicators commonly used by the United Nations system, including for more than one third of the indicators used to monitor progress towards the achievement of the Sustainable Development Goals. The 2019 revision of the World Population Prospects is the twenty-sixth edition of the official United Nations population estimates and projections, which have been prepared since 1951 by the Population Division of the Department of Economic and Social Affairs. The 2019 revision presents population estimates from 1950 until the present for 235 countries or areas, which have been developed through country-specific analyses of historical demographic trends. It builds on previous revisions by incorporating additional results from the 2010 and 2020 rounds of national population censuses as well as information from vital registration and recent nationally representative household sample surveys. The 2019 revision also presents population projections to the year 2100 that reflect a range of plausible outcomes at the global, regional and country levels. These Highlights summarise key population trends described by the estimates and projections presented in World Population Prospects 2019.
Author : Andy Clark
Publisher : DIANE Publishing
Page : 248 pages
File Size : 43,6 Mb
Release : 2008-07
Category : Technology & Engineering
ISBN : 9781437903799
Cover crops slow erosion, improve soil, smother weeds, enhance nutrient and moisture availability, help control many pests and bring a host of other benefits to your farm. At the same time, they can reduce costs, increase profits and even create new sources of income. You¿ll reap dividends on your cover crop investments for years, since their benefits accumulate over the long term. This book will help you find which ones are right for you. Captures farmer and other research results from the past ten years. The authors verified the info. from the 2nd ed., added new results and updated farmer profiles and research data, and added 2 chap. Includes maps and charts, detailed narratives about individual cover crop species, and chap. about aspects of cover cropping.
Author : National Academies of Sciences, Engineering, and Medicine,Division of Behavioral and Social Sciences and Education,Committee on Population
Publisher : National Academies Press
Page : 89 pages
File Size : 40,7 Mb
Release : 2016-03-18
Category : Social Science
ISBN : 9780309381192
Fertility rates and population growth influence economic development. The marked declines in fertility seen in some developing nations have been accompanied by slowing population growth, which in turn provided a window of opportunity for rapid economic growth. For many sub-Saharan African nations, this window has not yet opened because fertility rates have not declined as rapidly there as elsewhere. Fertility rates in many sub-Saharan African countries are high: the total rate for the region is estimated to be 5.1 births per woman, and rates that had begun to decline in many countries in the region have stalled. High rates of fertility in these countries are likely to contribute to continued rapid population growth: the United Nations projects that the region's population will increase by 1.2 billion by 2050, the highest growth among the regions for which there are projections. In June 2015, the Committee on Population organized a workshop to explore fertility trends and the factors that have influenced them. The workshop committee was asked to explore history and trends related to fertility, proximate determinants and other influences, the status and impact of family planning programs, and prospects for further reducing fertility rates. This study will help donors, researchers, and policy makers better understand the factors that may explain the slow pace of fertility decline in this region, and develop methods to improve family planning in sub-Saharan Africa.
Author : Sheldon Smith
Publisher : Routledge
Page : 210 pages
File Size : 50,7 Mb
Release : 2019-03-06
Category : Social Science
ISBN : 9780429709968
This book presents nine case studies which illustrate an approach to the interface between human ecology, political economy, and adaptive decision making, demonstrating the power of analyzing socionatural regions from a human systems ecology perspective.