Download or read book Crop Plans and Yield Predictions for Norway Spruce Picea Abies L Karst and Birch Betula Pendula Roth Betula Pubescens Ehrh Mixtures written by Åsa Tham and published by . This book was released on 1994 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Current Abstracts written by and published by . This book was released on 1996 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Governance and Management Across Time written by Erland Mårald and published by Routledge. This book was released on 2017-09-22 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: The influence of the past, and of the future on current-time tradeoffs in the forest arena are particularly relevant given the long-term successions in forest landscapes and the hundred years’ rotations in forestry. Historically established path dependencies and conflicts determine our present situation and delimit what is possible to achieve. Similarly, future trends and desires have a large influence on decision making. Nevertheless, decisions about forest governance and management are always made in the present – in the present-time appraisal of the developed situation, future alternatives and in negotiation between different perspectives, interests, and actors. This book explores historic and future outlooks as well as current tradeoffs and methods in forest governance and management. It emphasizes the generality and complexity with empirical data from Sweden and internationally. It first investigates, from a historical perspective, how previous forest policies and discourses have influenced current forest governance and management. Second, it considers methods to explore alternative forest futures and how the results from such investigations may influence the present. Third, it examines current methods of balancing tradeoffs in decision-making among ecosystem services. Based on the findings the authors develop an integrated approach – Reflexive Forestry – to support exchange of knowledge and understandings to enable capacity building and the establishment of common ground. Such societal agreements, or what the authors elaborate as forest social contracts, are sets of relational commitment between involved actors that may generate mutual action and a common directionality to meet contemporary challenges.
Download or read book Canadian Journal of Forest Research written by and published by . This book was released on 1997 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Crop Plans and Yield Predictions for Norway Spruce Picea Abies L Karst and Birch Betula Pendula Roth Betula Pubescens Ehrh Mixtures written by and published by . This book was released on 1994 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: High floods in watercourses are of great interest, because of the potential hazards they pose to people and low-lying land near rivers. In many parts of the world, inundations are common and in northwest Europe there are high discharges almost every year, occasionally with serious consequences. In Sweden, such a major flood occurred in 1985, causing a damburst. Land use in the area was mainly forestry, and fairly extensive clear-felling and drainage were believed to have amplified high discharges following heavy rain. This led to investigation of the hydrological consequences of these forestry activities. Drainage was carried out both as new drainage of virgin peatlands, and as drainage of moist and wet mineral soils, i.e. remedial drainage of clear-felled areas. The investigations were made on small catchments and utilised the calibration period and control basin technique, using linear regression relations. Peatland drainage resulted in reduced high discharges, while drainage of clear-felled areas resulted in increased high discharges, as compared to forested conditions. However, drainage of clear-felled areas partly led to reduced peak flows. A high groundwater level was an important prerequisite for increased discharges. When results from small catchments were applied to larger rivers, the effects of forest drainage were small, i.e. increases were less than 10%.
Download or read book The Commonwealth Forestry Review written by and published by . This book was released on 1995 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mixed Species Forests written by Hans Pretzsch and published by Springer. This book was released on 2017-06-10 with total page 653 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook offers a detailed overview of the current state of knowledge concerning the ecology and management of compositionally and structurally diverse forests. It provides answers to central questions such as: What are the scientific concepts used to assess the growth, dynamics and functioning of mixed-species forests, how generalizable are they, and what kind of experiments are necessary to develop them further? How do mixed-species stands compare with monocultures in relation to productivity, wood quality, and ecological stability in the face of stress and disturbances? How are the effects of species mixtures on ecosystem functioning influenced by the particular species composition, site conditions, and stand structure? How does any over- or underyielding at the forest-stand level emerge from the tree and organ level, and what are the main mechanisms behind mixing effects? How can our current scientific understanding of mixed-species forests be integrated into silvicultural concepts as well as practical forest management and planning? Do the ecological characteristics of mixed-species stands also translate into economic differences between mixtures and monocultures? In addition, the book addresses experimental designs and analytical approaches to study mixed-species forests and provides extensive empirical information, general concepts, models, and management approaches for mixed-species forests. As such, it offers a valuable resource for students, scientists and educators, as well as professional forest planners, managers, and consultants.
Download or read book Studia Forestalia Suecica written by and published by . This book was released on 1963 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agrindex written by and published by . This book was released on 1995 with total page 1088 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1991-10 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture with Subject Index written by and published by . This book was released on 1996 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spruce Monocultures in Central Europe written by Emil Klimo and published by . This book was released on 2000 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Yield Predictions After Heavy Thinnings of Birch in Mixed Stands of Norway Spruce Picea Abies L Karst and Birch Betula Pendula Roth Betula Pubescens Ehrh written by Åsa Tham and published by . This book was released on 1988 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Continuous Cover Forestry written by Timo Pukkala and published by Springer Science & Business Media. This book was released on 2011-10-14 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the majority of the world’s forest ecosystems are dominated by uneven-sized multi-species stands, forest management practice and theory has focused on the development of plantation monocultures to maximize the supply of timber at low cost. Societal expectations are changing, however, and uneven-aged multi-species ecosystems, selectively managed as Continuous Cover Forestry (CCF), are often believed to be superior to monocultures in addressing a wide range of expectations. This book presents methods which are relevant to CCF management and planning: analysing forest structures, silvicultural and planning, economic evaluation, based on examples in Europe, Asia, Africa and North and South America.
Download or read book Biology and Ecology of Norway Spruce written by Mark G. Tjoelker and published by Springer Science & Business Media. This book was released on 2007-05-29 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a concise and comprehensive review of the biology, ecology, and management of Norway spruce. Written by 25 experts in the field, and richly illustrated, it integrates classic and contemporary literature. More than 2000 works are cited in the text, which highlights basic research and forestry practices in central and Eastern Europe. The huge range of topics covered includes the species’ morphology, its physiology and nutrition, and its ecology.
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 Forest and Woodland Ecology written by F. T. Last and published by . This book was released on 1981 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
