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Our knowledge of the functional characteristics of the plants of mediterranean-cl imate regions has increased greatly in the past decade. In recent times the possibility of large-scale util ization of biomass for energy from these regions has been proposed. In order to assess the feasibil ity of these proposals we must consider the productive structure of these plant communities and how they vary through time and space. This symposium was an attempt to examine our recently acquired basic knowledge of the environmental I imitations on the productivity of Mediterranean plant communities in relation to the consequences of the possible util ization of these communities for energy and chemicals. Specifically in this book we examine the mechanisms by which plants of mediterranean-cl imate regions maintain their productive capacity under the prevail ing conditions of summer draught and winter cold. We consider the characteristics of leaves, their history, morphology and plasticity. Evergreen sclerophyll leaves are common to the dominant plants of all mediterranean-cl imate regions and thus they have significance in terms of enhancing carbon gain and water-use efficiency as well as ensuring survival under the prevail ing cl imatic conditions.
The regions of the world which experience a mediterranean type climate, with a cool wet season alternating with a hot dry summer, contain some of the world's most attractive landscapes. In the Old World, the mediterranean landscapes became the cradle of civilization; other mediterranean areas of the world have attracted considerable populations for many centuries. These large human populations have exerted consid erable stress on the fragile ecosystems which developed in these sunny, but droughted, fire-prone land scapes. The mediterranean landscape has thus become one of the most threatened in the world. In recent years much has been learned about the structure and function of mediterranean-type ecosystems (Di Castri and Mooney 1973, Mooney 1977, Thrower and Bradbury 1977, Mooney and Conrad 1977, Specht 1979, 1981, Miller 1981, Di Castri et at. 1981, Conrad and Oeche11982, Queze11982, Margaris and Mooney 1981, Kruger et ai. 1983, Long and Pons 1984, Dell et ai. 1986, Tenhunen et ai. 1987). Much of this research has been fostered under the International Biological Program (IBP), UNESCO Man and the Biosphere Program (MAB) and, recently, the International Society of Mediterranean Ecologists (ISOMED). To facilitate intercontinental comparisons, many of these studies have concentrated on a limited number of intensive sites thought to be representative of a general region.
This book is dedicated to international cooperation, understanding and peace. It is the end result of several years of cooperative work between scientists of three countries: the United States, Germany, and Portugal. The work presented, however, draws from a much broader base, hopefully achieving the objective of NATO Advanced Research Workshops, which have been established to allow and stimulate the exchange of new ideas and the synthesis of information by scientists of NATO countries. The tasks of the workshop were several; to review established methodologies that have provided insight into ecosystem function and adaptations of plants in mediterranean climate zones; to examine new methodologies that have recently been applied in ecological studies and have provided new types of information; to summarize recent studies in mediterranean regions of plant water relations, photosynthesis and production, mineral nutrition, plant growth and development, and response to fire; to stimulate in particular an exchange of information among scientists of European Mediterranean countries; and to discuss means by which all of these objectives might be even more effectively achieved in the future through cooperative international research efforts. This variety of themes is clearly evident in the layout of the book. Held in Sesimbra, Portugal in October of 1985, the workshop took place in a ..
In spite of all the efforts made in fire prevention and suppression, every year about 45 000 forest fires occur in Europe, burning ca. 0.5 million hectares of forests and other rural lands. The management of these burned forests has been given much less attention than fire prevention or fire suppression issues, but the post-fire management of burned areas raises strong concerns (economic and social impacts, soil erosion and water quality, biodiversity loss, forest restoration). Although there are a few publications which address post-fire management, the focus of these has been either on general approaches to restoration or specific topics such as preventing post-fire soil erosion. This book is about the post-fire management of fire-prone forest types in southern Europe. It provides the first comprehensive overview of the topic, ranging from stand-level to landscape-level management, and from emergency actions to long-term restoration approaches.
The Plain of Phaistos presents the results on an interdisciplinary regional field project (1984-1987) carried out on the island Of Crete. This volume traces the changing patterns of settlement and cycles of social complexity from the Late Neolithic period to the present day within the heartland of the state of Phaistos. The authors and contributors publish geological, archaeological, environmental, botanical, historical and ethnographic studies that establish the regional identity of the Western Mesara. Using a combination of empirical, processual and post-processual theoretical approaches, the volume investigates a central problem - how and why did the Bronze Age and Classical states arise at Phaistos?
The theory of ecological convergence underlies the biogeographers' maps of world biome-types. It also determines the degree to which ecological principles, derived from research on particular populations, communities or ecosystems, are generally valid, and hence also to what extent resource management principles are general. To quote Di Castri and Mooney (1973): "In effect, in order to assess the transfer of technology, it is essential to know to what extent information acquired from studying one particular ecosystem is applicable to another ecosystem of the same type but situated in a different location. " The five relatively small, isolated, mediterranean-climate zones of the earth, each with its distinct fauna and flora, have provided the ideal testing grounds for this theory. A heritage of precisely focused ecosystems research has resulted, beginning with the international comparative analyses conducted by Specht (l969a, b) but with antecedents in earlier studies in South Australia (Specht and Rayson 1957, Specht 1973). Cody and Mooney (1978) reviewed the information available at the time for the four zones excepting Australia and concluded that the arrays of strategy-types to be found among the different biotas were so similar that they could be explained only in terms of the convergence hypothesis; nevertheless, evident differences in community organization and dynamics, especially phenol ogy, required closer study of resource availability and resource-use patterns to better explain relations between form and function overall, and to assess the degree of convergence at higher levels of organization than the population.
Medicinal Plant Responses to Stressful Conditions discusses the effects of multiple biotic and abiotic stressors on medicinal plants. It features information on biochemical, molecular and physiological strategies used to mitigate or alleviate detrimental effects of biotic and abiotic stressors. The book contains chapters featuring medicinal plants of importance covering subjects including genomics, functional genomics, metabolomics, phenomics, proteomics and transcriptomics under biotic and abiotic stress of medicinal plants and their molecular responses. It suggests exogenous application of different types of stimulants to enhance medicinal plant production in such conditions. Features: Details all aspects of biotic and abiotic stressors in various important medicinal plant species. Chapters cover evidence-based approaches in the diagnosis and management of medicinal plants under stressful conditions. Includes information on ways to mitigate effects from biotic stress (diseases and pests) or abiotic stress (high salinity, drought, temperature extremes, waterlogging, wind, high light intensity, UV radiation, heavy metals and mineral deficiencies). A volume in the Exploring Medicinal Plants series, this book is an essential resource for plant scientists, botanists, environmental scientists and anyone with an interest in herbal medicine.
This latest volume in the Horticultural Reviews Series presents the most recent analyses of innovations in horticultural science and technology. Covering both basic and applied research, Volume 41 incorporates a wide variety of horticultural topics including the horticulture of fruits, vegetables, nut crops, and ornamentals. Specialized researchers and the broader community of horticultural scientists and student may benefit from this research tool.
Geodynamic process during the rapid growth ofHimalayahas holistic imprints of Climate Change in this region. “Climate Change & Himalayan Informatics” is an account of dedicated contribution for the above imprints. Impact of climate change is examined in this book for the ongoing process of rapid urbanization of the hinterlands ofHimalaya. It consists four sessions and seventeen chapters. Mass balance of glaciers in ChandrabasinofHimalayais presented as a predictive tool for spatially distributed estimates of mass balance of glaciers. An effective tool to identify and locate multiple natural hazards due to climate change inHimalayaespecially landslides and glacial lake outburst flood (GLOF) is part of the book. Impacts of climate change on cropping strategies by mountain communities are ascribed in the session “socio-economic perspectives”. Information on ecologically and economically important plant species inHimalayathat have greater tolerance in drought, discussed in this book, is significant in the perspectives of global warming. A specific species is identified as an indicator of climate change forEastern Himalaya. Climatic impacts on different regional eco systems ofHimalayahad implications on ecological, cultural and socio economic process of the region. Multidimensional decision support system is essential for mitigation and adaptation for such implications. Present book consists studies from north to eastern part ofHimalaya. This will be beneficial to researchers, student, managers and administrators associated with Mountain ecosystem and Climate Change.
These exciting new companion handbooks are the only ones of their kind devoted solely to the effects of environmental variables on the physiology of the world's major fruit and nut crops. Their cosmopolitan scope includes chapters on tropical and temperate zone species written by scientists from several continents. The influence of environmental factors, such as irradiance, temperature, water and salinity on plant physiology and on vegetative and reproductive growth, is comprehensively discussed for each crop. In addition to being a thorough and up-to-date set of textbooks, the organzation of the two volumes makes them an excellent reference tool. Each chapter focuses on a single crop, or a group of genetically or horticulturally related crop, and is appropriately divided into subsections that address individual environmental factors. Some chapters emphasize whole-plant physiology and plant growth and development, while other chapters feature theoretical aspects of plant physiology. Several chapters provide botanical background discussions to enhance understanding of the crop's response to its environment.