Regeneration Dynamics in Mixed-species, Multiaged, Mountainous Forests of Romania PDF Download

Author: Petru Tudor Stancioiu
Publisher:
ISBN:
Category :
Languages : en
Pages : 252

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Author: Hans Pretzsch
Publisher: Springer
ISBN: 3662545535
Category : Technology & Engineering
Languages : en
Pages : 653

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Book Description
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.

Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 668

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Author:
Publisher:
ISBN:
Category : Forest genetics
Languages : en
Pages : 566

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Author: Erkki Tomppo
Publisher: Springer Science & Business Media
ISBN: 9048132339
Category : Technology & Engineering
Languages : en
Pages : 614

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Book Description
Forest inventories throughout the world have evolved gradually over time. The content as well as the concepts and de?nitions employed are constantly adapted to the users’ needs. Advanced inventory systems have been established in many countries within Europe, as well as outside Europe, as a result of development work spanning several decades, in some cases more than 100 years. With continuously increasing international agreements and commitments, the need for information has also grown drastically, and reporting requests have become more frequent and the content of the reports wider. Some of the agreements made at the international level have direct impacts on national economies and international decisions, e. g. , the Kyoto Protocol. Thus it is of utmost importance that the forest information supplied is collected and analysed using sound scienti?c principles and that the information from different countries is comparable. European National Forest Inventory (NFI) teams gathered in Vienna in 2003 to discuss the new challenges and the measures needed to get data users to take full advantage of existing NFIs. As a result, the European National Forest Inventory Network (ENFIN), a network of NFIs, was established. The ENFIN members decided to apply for funding for meetings and collaborative activities. COST– European Cooperation in Science and Technology - provided the necessary ?n- cial means for the realization of the program.

Author: Timo Pukkala
Publisher: Springer Science & Business Media
ISBN: 9400722028
Category : Technology & Engineering
Languages : en
Pages : 298

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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.

Author: Christian C. Voigt
Publisher: Springer
ISBN: 3319252208
Category : Nature
Languages : en
Pages : 601

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This book focuses on central themes related to the conservation of bats. It details their response to land-use change and management practices, intensified urbanization and roost disturbance and loss. Increasing interactions between humans and bats as a result of hunting, disease relationships, occupation of human dwellings, and conflict over fruit crops are explored in depth. Finally, contributors highlight the roles that taxonomy, conservation networks and conservation psychology have to play in conserving this imperilled but vital taxon. With over 1300 species, bats are the second largest order of mammals, yet as the Anthropocene dawns, bat populations around the world are in decline. Greater understanding of the anthropogenic drivers of this decline and exploration of possible mitigation measures are urgently needed if we are to retain global bat diversity in the coming decades. This book brings together teams of international experts to provide a global review of current understanding and recommend directions for future research and mitigation.

Author: John C. Tappeiner
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 452

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"An essential reference for forest managers, policy makers, forest scientists, and students, this authoritative volume provides a basis for silviculture practices and contemporary management of western forests."--BOOK JACKET.

Author:
Publisher: World Bank Publications
ISBN: 9780821319178
Category : Political Science
Languages : en
Pages : 106

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Book Description
Since 1978, when the World Bank published its policy paper on forestry, the world's understanding of and concern about the forest sector of the developing world has increased substantially. It has become clear that forests and woodlands play an even more important economic and ecological role than had earlier been recognized. In particular, the importance of tropical moist forests in protecting biological diversity has become more fully appreciated, as has their role in the carbon cycle and in global climatic change. The nature of the challenge; Deforestation and forest degradation; The growing demand for forests and trees for basic needs; Strategies for forest development; The role of the world bank; Challenges for the forest sector; Strategies for forest development; The role of the world bank.

Author: Christoph Fischer
Publisher: Springer Nature
ISBN: 3030192938
Category : Technology & Engineering
Languages : en
Pages : 424

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Book Description
The Swiss National Forest Inventory (NFI) is a forest survey on national level which started in 1982 and has already reached its 5th survey cycle (NFI5). It can be characterized as a multisource and multipurpose inventory where information is mainly collected from terrestrial field surveys using permanent sample plots. In addition, data from aerial photography, GIS and forest service questionnaires are also included. The NFI's main objective is to provide statistically reliable and sound figures to stakeholders such as politicians, researchers, ecologists, forest service, timber industry, national and international organizations as well as to international projects such as the Forest Resources Assessment of the United Nations. For Switzerland, NFI results are typically reported on national and regional level. State of the art methods are applied in all fields of data collection which have been proven to be of international interest and have even served as a basis for other European NFIs. The presented methods are applicable to any sample based forest inventory around the globe. In 2001 the Swiss NFI published its methods for the first time. Since then, many methodological changes and improvements have been introduced. This book describes the complete set of methods and revisions since NFI2. It covers various topics ranging from inventory design and statistics to remote sensing, field survey methods and modelling. It also describes data quality concepts and the software framework used for data storage, statistical analysis and result presentation.