Download or read book Tree Crop Ecosystems written by F. T. Last and published by Elsevier Science & Technology. This book was released on 2001 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hardbound. Tree Crop Ecosystems is a unique new resource which combines the interests of traditional foresters and horticulturalists. Sixteen chapters written by international experts in the field emphasise the current topical issues besetting each of the crops considered. In the past the management of tree crops was focussed on yield without an adequate understanding of crop behaviour. Recent decades have seen many major advances in knowledge, notably those related tree biology and biodiversity within species and between different crops. Throughout the volume the issue of biodiversity is discussed as a key factor in relation to: the conservation of natural resources at risk; within species variation; and the flora and fauna associated with tree crops. Tree Crop Ecosystems is unique in taking an holistic approach to the crops, their origins and within-species variation. Direct and indirect influences of the crops on their ecosystem a

Download or read book Economics and Ecology of Diversification written by François Ruf and published by Springer. This book was released on 2015-09-23 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: The monoculture systems that have been encouraged by governments since the 1960s have led to major socio-economic and environmental crises. Now the diversification of tree crop systems is advancing throughout the tropics. Why and when does diversification take place? What categories of farmers diversify? What obstacles do they have to overcome, and how do public and private policies interfere in this process? How do land use systems and landscapes evolve as a result of this diversification? According to the authors of this volume, diversification is certainly a response to market risks, but also to the depletion of environmental resources. Ecological changes such as declining soil fertility and increasing pressure from pests, diseases and weeds intensify at the end of monoculture cycles, driving crop change and diversification of farming systems. Through 15 case studies from Africa, Latin America, Asia and the Pacific, the authors provide us with in-depth insights into the economy and ecology of family agriculture and its recent developments.

Download or read book Ecosystems of the World written by David W. Goodall and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecological Basis of Agroforestry written by Daizy Rani Batish and published by CRC Press. This book was released on 2007-11-15 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Faced with the growing problems of climate change, ecosystem degradation, declining agricultural productivity, and uncertain food security, modern agricultural scientists look for potential relief in an ancient practice. Agroforestry, if properly designed, can mitigate greenhouse effects, maintain ecosystem health and biodiversity, provide food sec

Download or read book Economics and Ecology of Diversification written by François Ruf and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The monoculture systems that have been encouraged by governments since the 1960s have led to major socio-economic and environmental crises. Now the diversification of tree crop systems is advancing throughout the tropics. Why and when does diversification take place? What categories of farmers diversify? What obstacles do they have to overcome, and how do public and private policies interfere in this process? How do land use systems and landscapes evolve as a result of this diversification? According to the authors of this volume, diversification is certainly a response to market risks, but also to the depletion of environmental resources. Ecological changes such as declining soil fertility and increasing pressure from pests, diseases and weeds intensify at the end of monoculture cycles, driving crop change and diversification of farming systems. Meanwhile, diversification is encouraged by governments but increasingly also by the private sector that offers free seedlings, credit, technical assistance and market outlets to farmers to encourage the adoption of certain crops in a context of increasing competition for land resources. Social changes such as the return of young people to the villages, investments of urban middle classes in plantation agriculture, aging of the rural work force and increasing population pressure also play a role in this process. Through 15 case studies from Africa, Latin America, Asia and the Pacific, the authors provide us with in-depth insights into the economy and ecology of family agriculture and its recent developments. The book targets professionals of the tropical tree crop sector, students and scientists working on economic and ecological questions of tropical land use, and anyone interested in sustainable rural development. While the case studies are from tropical contexts, the methodological approaches and discussions are also relevant to temperate agriculture.

Download or read book Tree Crop Interactions 2nd Edition written by Chin K Ong and published by CABI. This book was released on 2015-10-28 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition provides an update on the considerable amount of evidence on tree-crop interactions which has accumulated during the last two decades, especially on the more complex multi-strata agroforestry systems, which are typical of the humid tropics. In addition three new chapters have been added to describe the new advances in the relationship between climate change adaptation, rural development and how trees and agroforestry will contribute to a likely reduction in vulnerability to climate change in developing countries

Download or read book Biodiversity and Conservation of Woody Plants written by M. R. Ahuja and published by Springer. This book was released on 2017-11-21 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides complete, comprehensive, and broad subject-based reviews for students, teachers, researchers, policymakers, conservationists, and NGOs interested in the biodiversity and conservation of woody plants. Forests cover approximately 31 percent of the world’s total landmass; 93 percent is natural forest and only 7 percent consists of planted trees. Forest decline is progressing at an alarming rate worldwide. In addition to human activities (logging, deforestation, and exploiting forest lands for agriculture and industrial use), a number of other factors – including pests and diseases, drought, soil acidity, radiation, and ozone – are cumulatively contributing to global forest decline. The present situation forces us to focus on forest conservation strategies for the present and future. Gene conservation and maintaining genetic diversity in forest ecosystems are crucial to the preservation of forest genetic resources. This calls for integrated action to implement both the in situ (on site) preservation of forest stands and ex situ (distant from the original site) strategies for the conservation of woody plants’ genetic resources. Selected priority areas include: 1) assessing patterns of genetic diversity and threats, 2) understanding the biological processes regulating genetic diversity, 3) assessing the impact of human activities and climate change on genetic diversity, and 5) finding methods for prioritizing species and populations for the conservation of forest trees genetic resources. All chapters were written by leading scientists in their respective fields, which include: woody plant diversity, ecology and evolution; assessment of genetic diversity in forest tree populations; conservation planning under climate change; and in situ and ex situ strategies, including biotechnological approaches, for the conservation of woody plants genetic resources.

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 Silvopasture written by Steve Gabriel and published by Chelsea Green Publishing. This book was released on 2018 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this how-to guide, ecologist and forest farmer Steve Gabriel explores the philosophy and techniques behind silvopasture - the integration of trees, animals, and forages in a whole-system approach that creates a number of benefits for livestock, farmers, and the environment. This system not only provides a sustainable farm income, but also holds the key to restoring land, building soil carbon, and creating climate resilience.--COVER.

Download or read book Trees in a Changing Environment written by Michael Tausz and published by Springer. This book was released on 2014-08-26 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book delivers current state-of-the-science knowledge of tree ecophysiology, with particular emphasis on adaptation to a novel future physical and chemical environment. Unlike the focus of most books on the topic, this considers air chemistry changes (O3, NOx, and N deposition) in addition to elevated CO2 effects and its secondary effects of elevated temperature. The authors have addressed two systems essential for plant life: water handling capacity from the perspective of water transport; the coupling of xylem and phloem water potential and flow; water and nutrition uptake via likely changes in mycorrhizal relationships; control of water loss via stomata and its retention via cellular regulation; and within plant carbon dynamics from the perspective of environmental limitations to growth, allocation to defences, and changes in partitioning to respiration. The authors offer expert knowledge and insight to develop likely outcomes within the context of many unknowns. We offer this comprehensive analysis of tree responses and their capacity to respond to environmental changes to provide a better insight in understanding likelihood for survival, as well as planning for the future with long-lived, stationary organisms adapted to the past: trees.

Download or read book Trees Food and People written by J. G. Bene and published by . This book was released on 1977 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Below Ground Interactions in Ecological Processes written by Oren Shelef and published by Frontiers Media SA. This book was released on 2020-01-29 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aboveground interactions between plants and organisms have served as a foundation of ecological and evolutionary theories. Accumulating evidence suggests that interactions that occur belowground can have immense influence on eco-evolutionary dynamics of plants. Despite the increasing awareness among scientists of the importance of belowground interactions for plant performance and community dynamics, they have received considerably less theoretical and empirical attention compared to aboveground interactions. In this eBook we aim to highlight the overlooked roles of belowground interactions and outline their myriad ecological roles, from affecting soil health through impacting plant interactions with above-ground fauna. This eBook with 18 articles and an Editorial includes conceptual contribution together with original research work. The chapters are exploring the roles of belowground biotic interactions, in the context of ecological processes both below- and above-ground.

Download or read book Integrating Landscapes Agroforestry for Biodiversity Conservation and Food Sovereignty written by Florencia Montagnini and published by Springer Nature. This book was released on with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agroforestry for Natural Resource Management written by Ian Nuberg and published by CSIRO PUBLISHING. This book was released on 2009-05-18 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: In its early days, agroforestry may have been viewed as the domain of the 'landcare enthusiast'. Today, integrating trees and shrubs into productive farming systems is seen as a core principle of sustainable agriculture. Agroforestry for Natural Resource Management provides the foundation for an understanding of agroforestry practice in both high and low rainfall zones across Australia. Three major areas are discussed: environmental functions of trees in the landscape (ecosystem mimicry, hydrology, protection of crops, animals and soil, biodiversity, aesthetics); productive functions of trees (timber, firewood, pulp, fodder, integrated multi-products); and the implementation of agroforestry (design, evaluation, establishment, adoption, policy support). The book also includes a DVD that features videos on forest measurement and harvesting, a Farm Forestry Toolbox and many regionally specific agroforestry resources. Written by leading researchers and practitioners from around Australia, Agroforestry for Natural Resource Management will be an essential resource for students in agroforestry courses, as well as a valuable introduction to the field for professionals in related areas.

Download or read book Processes and Stages in the Transition from Natural Forest Ecosystems to Tree Crop Plantations written by J. F. Wienk and published by . This book was released on 1998 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agroforestry Systems written by Scott X. Chang and published by MDPI. This book was released on 2020-05-13 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Planting trees in the agricultural landscape, in the form of establishing agroforestry systems, has a significant role to play in potentially improving ecosystem services, such as increased biodiversity, reduced soil erosion, increased soil carbon storage, improved food security and nutrition, and reduced greenhouse gas emissions. While the role of trees in agroforestry systems in improving ecosystem services has been researched, studies in new systems/regions and new agroforestry system designs are still emerging. This Special Issue includes selected papers presented at the 4th World Congress on Agroforestry, Montpellier, France 20–22 May 2019, and other volunteer papers. The scope of articles includes all aspects of agroforestry systems.

Download or read book Agroforestry in Europe written by Antonio Rigueiro-Rodríguez and published by Springer Science & Business Media. This book was released on 2008-11-09 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agroforestry has come of age during the past three decades. The age-old practice of growing trees and crops and sometimes animals in interacting combinations – that has been ignored in the single-commodity-oriented agricultural and forestry development paradigms – has been brought into the realm of modern land-use. Today agroforestry is well on its way to becoming a specialized science at a level similar to those of crop science and forestry science. To most land-use experts, however, agroforestry has a tropical connotation. They consider agroforestry as something that can and can only be identified with the tropics. That is a wrong perception. While it is true that the tropics, compared to the temperate regions, have a wider array of agroforestry systems and hold greater promise for potential agroforestry interventions, it is also true that agroforestry has several opportunities in the temperate regions too. Indeed, the role of agroforestry is now recognized in Europe as exemplified by this book, North America, and elsewhere in the temperate zone. Current interest in ecosystem management in industrialized countries strongly suggests that there is a need to embrace and apply agroforestry principles to help mitigate the environmental problems caused or exacerbated by commercial agricultural and forestry production enterprises.