Download or read book Bulletin of the International Society of Soil Science written by International Society of Soil Science and published by . This book was released on 1987 with total page 1052 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Farming Action Catchment Reaction written by J Williams and published by CSIRO PUBLISHING. This book was released on 1998-01-01 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dryland farming is a major export earner for many temperate-zone countries, yet it continues to degrade a country's natural resources. Effects are not restricted to the land - changes in water quality can reduce the potential uses of water and bring about catastrophic changes in both freshwater and coastal ecosystems. Farming Action: Catchment Reaction provides a comprehensive technical overview of the relationships between dryland farming systems and catchment land and water quality in Australia, and integrates it in a whole system framework. It deals with the issues in terms of people, pointers, processes and prediction as it discusses social aspects of developing and implementing research to improve dryland farming systems in catchment management programs, indicators of catchment health, and the processes which determine the impact of the farming action on the catchment response. It concludes by considering the adequacy of our ability to use this process knowledge in models to predict the effect of dryland farming on catchment condition.

Download or read book Terminology for Soil Erosion and Conservation written by E. Bergsma (aardwetenschappen.) and published by . This book was released on 1996 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dictionary ISSS ITC ISRIC

Download or read book Soil Productivity Aspects of Agroforestry written by P. K. R. Nair and published by . This book was released on 1984 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Land-use systems related to agroforestry; The role trees in soil productivity and conservation; Research results fron some field examples ofagroforestry; Soil productivity and soil management in agroforestry: postulations and suggested research approaches.

Download or read book Agroforestry written by Howard A. Steppler and published by . This book was released on 1987 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Perspectives on agroforestry. Prominence and importance of agroforestry in selected regions. Impact measurement and technology transfer. Research findings and proposals.

Download or read book SCUAF written by Anthony Young and published by . This book was released on 1998 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Directions in Tropical Agroforestry Research written by P. K. Ramachandran Nair and published by Springer Science & Business Media. This book was released on 2013-04-18 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: Large areas of the warm, humid tropics in Southeast Asia, the Pacific, Latin America, the Caribbean, and Africa are hilly or mountainous. Jackson and Scherr (1995) estimate that these tropical hillside areas are inhabited by 500 million people, or one-tenth of the current world population, many of whom practice subsistence agriculture. The region most affected is Asia which has the lowest area of arable land per capita. Aside from limited areas of irrigated terraces, most of the sloping land, which constitutes 60% to 90% of the land resources in many Southeast Asian countries, has been by-passed in the economic development of the region (Maglinao and Hashim, 1993). Poverty in these areas is often high, in contrast to the relative wealth of irri gated rice farms in lowland areas that benefited from the green revolution. Rapid population growth in some countries is also exacerbating the problems of hillside areas. Increasingly, people are migrating from high-potential lowland areas where land is scarce to more remote hillside areas. Such migra tion, together with inherent high population growth, is forcing a transforma tion in land use from subsistence to permanent agriculture on fragile slopes, and is creating a new suite of social, economic, and environmental problems (Garrity, 1993; Maglinao and Hashim, 1993).

Download or read book Agroforestry The Future of Global Land Use written by P.K. Ramachandran Nair and published by Springer Science & Business Media. This book was released on 2012-08-22 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains a solid body of the current state of knowledge on the various themes and activities in agroforestry worldwide. It is organized into three sections: the Introduction section consists of the summaries of six keynote speeches at the 2nd World Congress of Agroforestry held in Nairobi, Kenya, in 2009; that is followed by two sections of peer-reviewed thematic chapters grouped as “Global Perspectives” (seven chapters) and “Regional Perspectives” (eleven chapters), authored by professional leaders in their respective agroforestry-related fields worldwide. A total of 130 professionals from institutions in 33 countries in both developing and the industrialized temperate regions of the world contributed to the book as chapter authors and/or reviewers. Thus, the book presents a comprehensive and authoritative account of the global picture of agroforestry today.

Download or read book Afforestation Projects written by and published by . This book was released on 1986 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Impact of Climate Change on America s Forests written by and published by . This book was released on 2000 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "This report documents trends and impacts of climate change on America's forests as required by the Renewable Resources Planning Act of 1974. Recent research on the impact of climate and elevated atmospheric carbon dioxide on plant productivity is synthesized. Modeling analyses explore the potential impact of climate changes on forests, wood products, and carbon in the United States."

Download or read book Ethnobotany written by Gary J. Martin and published by Springer. This book was released on 2014-07-29 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ethnoecology has blossomed in recent years into an important science because of the realization that the vast body of knowledge contained in both indigenous and folk cultures is being rapidly lost as natural ecosystems and cultures are being destroyed by the encroachment of development. Ethnobotany and ethnozoology both began largely with direct observations about the ways in which people used plants and animals and consisted mainly of the compilation of lists. Recently, these subjects have adopted a much more scientific and quantitative methodology and have studied the ways in which people manage their environment and, as a consequence, have used a much more ecological approach. This manual of ethnobotanical methodology will become an essential tool for all ethnobiologists and ethnoecologists. It fills a significant gap in the literature and I only wish it had been available some years previously so that I could have given it to many of my students. I shall certainly recommend it to any future students who are interested in ethnoecology. I particularly like the sympathetic approach to local peoples which pervades this book. It is one which encourages the ethnobotanical work by both the local people themselves and by academically trained researchers. A study of this book will avoid many of the arrogant approaches of the past and encourage a fair deal for any group which is being studied. This manual promotes both the involvement oflocal people and the return to them of knowledge which has been studied by outsiders.

Download or read book Agroforestry written by Kenneth G. MacDicken and published by Wiley-Interscience. This book was released on 1990-01-22 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents current information on agroforestry practices and systems in most of the major agroecological zones of the world. Addresses research and development issues, including important aspects of design, economics, and extension.

Download or read book Attributes of Trees as Crop Plants written by Melvin G. R. Cannell and published by . This book was released on 1985 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: Domestication. Perspectives on the evolutionary history of tree crops. The basis of selection, management and evaluation of multipurpose trees - an overview. Forest tree breeding and fruit tree breeding: strategies, achievements and constraints. Strategies for optimizing the yield of tree crops in suboptimal environments. Tree growth at cool temperaturea and prospects for improvement by breeding. The ideotype concept applied to forest trees. Definition and exploitation of forest tree ideotypes in Finland. The capacity for vegetative propagation in trees. The vegetative structure. Biometrical, structural and physiological relationships among tree parts. Dry matter partitioning in tree crops. Forest productivity in relation to carbon partitioning and nutrient cycling: a mathematical model. Prospects for manipulating vascular-cambium productivity and xylem-cell differentiation. Branching, crown structure and the control of timber production. Trees as producers of exudates and extractives. Trees as producers of fuel. Trees as fodder crops. Roots, symbionts and soils. Roots as a component of tree productivity. Improving tree crops using micro-organisms in designed systems. Trees as soil improvers in the humid tropics?. Exploiting tree crop-symbiont specificity. Flowering and fruiting. Promotion of flowering in the crops: different mechanisms and techniques, with special reference to conifers. Variability in flower initiation in forest trees. Reproduction behaviour of fruit tree crops and its implications for the manipulation of fruit set. Some attributes of nut-bearing trees of temperate forest origin. Trees in stands. Future fruit orchard design: economics and biology. Transpiration and assimilation of tree and agricultural crops: the 'omega factor'. The competition process in forest stands. Forest canopy design: biological models and management implications. Future forest design: economic aspects. Wood properties, and future requirements for wood products.

Download or read book Economic Valuation Techniques for the Environment written by John A. Dixon and published by . This book was released on 1986 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tree crop Interactions written by C. K. Ong and published by . This book was released on 1996 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: A framework for quantifying the various effects of tree-crop interactions. Mexed cropping of annuals and woody perennials: an analytical approach to productivity and management. Mulch and shade model for optimum alley-cropping design depending on soil fertility. Principles of resource capture and utilization of light and water. Microclimatic modifications in agroforestry. The water balance of mixed tree-cropi systems. Biological factors affecting form and function in woody-non-woody plant mixtures. Tree-soil-crop interactions on slopes. Root distribution of tress and cropos: competition and/or complementarity. Woody-non-woody plant mixtures: some afterhoughts.

Download or read book D D User s Manual written by J. B. Raintree and published by . This book was released on 1987 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Basic principles and procedures; Case study example of the D & D learning process; D & D in action.

Download or read book Agroforestry for Soil Conservation written by Anthony Young and published by Oxford University Press, USA. This book was released on 1989 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil conservation and agroforestry. Agroforestry for control of soil erosion. Agroforestry for maintenance of soil fertility. Agroforestry for soil conservation.