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Author: A. Henderson-Sellers
Publisher: Springer Science & Business Media
ISBN: 940113264X
Category : Science
Languages : en
Pages : 237
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Book Description
The chapters in this section place the problems of vegetation and climate interactions in semi-arid regions into the context which recur throughout the book. First, Verstraete and Schwartz review desertification as a process of global change evaluating both the human and climatic factors. The theme of human impact and land management is discussed further by Roberts whose review focuses on semi-arid land-use planning. In the third and final chapter in this section we return to the meteorological theme. Nicholls reviews the effects of El Nino/Southern Oscillation on Australian vegetation stressing, in particular, the interaction between plants and their climatic environment. Vegetatio 91: 3-13, 1991. 3 A. Henderson-Sellers and A. J. Pitman (eds). Vegetation and climate interactions in semi-arid regions. © 1991 Kluwer Academic Publishers. Desertification and global change 2 M. M. Verstraete! & S. A. Schwartz ! Institute for Remote Sensing Applications, CEC Joint Research Centre, Ispra Establishment, TP 440, 1-21020 Ispra (Varese), Italy; 2 Department of Atmospheric, Oceanic and Space Sciences, The University of Michigan, Ann Arbor, MI48109-2143, USA Accepted 24. 8. 1990 Abstract Arid and semiarid regions cover one third of the continental areas on Earth. These regions are very sensitive to a variety of physical, chemical and biological degradation processes collectively called desertification.
Author: A. Henderson-Sellers
Publisher: Springer Science & Business Media
ISBN: 940113264X
Category : Science
Languages : en
Pages : 237
Get Book Here
Book Description
The chapters in this section place the problems of vegetation and climate interactions in semi-arid regions into the context which recur throughout the book. First, Verstraete and Schwartz review desertification as a process of global change evaluating both the human and climatic factors. The theme of human impact and land management is discussed further by Roberts whose review focuses on semi-arid land-use planning. In the third and final chapter in this section we return to the meteorological theme. Nicholls reviews the effects of El Nino/Southern Oscillation on Australian vegetation stressing, in particular, the interaction between plants and their climatic environment. Vegetatio 91: 3-13, 1991. 3 A. Henderson-Sellers and A. J. Pitman (eds). Vegetation and climate interactions in semi-arid regions. © 1991 Kluwer Academic Publishers. Desertification and global change 2 M. M. Verstraete! & S. A. Schwartz ! Institute for Remote Sensing Applications, CEC Joint Research Centre, Ispra Establishment, TP 440, 1-21020 Ispra (Varese), Italy; 2 Department of Atmospheric, Oceanic and Space Sciences, The University of Michigan, Ann Arbor, MI48109-2143, USA Accepted 24. 8. 1990 Abstract Arid and semiarid regions cover one third of the continental areas on Earth. These regions are very sensitive to a variety of physical, chemical and biological degradation processes collectively called desertification.
Author: Ann Henderson-Sellers
Publisher:
ISBN:
Category :
Languages : en
Pages : 238
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Book Description
Author: Jonathan Adams
Publisher: Springer Science & Business Media
ISBN: 3540324925
Category : Science
Languages : en
Pages : 275
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Book Description
An accessible account of the ways in which the world's plant life affects the climate. It covers everything from tiny local microclimates created by plants to their effect on a global scale. If you’ve ever wondered how vegetation can create clouds, haze and rain, or how plants have an impact on the composition of greenhouse gases, then this book is required reading.
Author: B.H. Walker
Publisher: Elsevier
ISBN: 0444599975
Category : Business & Economics
Languages : en
Pages : 409
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Book Description
Extensive regions of the world have a climate which, whilst permitting development of a continuous vegetative cover, is too dry for successful annual cropping. These are the semi-arid areas where land use is based on the natural vegetation. Easily degraded and difficult to maintain, they are under increasing pressure as expanding human populations move in and endeavour to force a living from them. As a result they contain some of the worst examples of resource degradation. This book examines the problems and opportunities involved in man's use of semi-arid areas. The authors are all actively involved in research and land management in the areas discussed. Each chapter begins with a detailed, up-to-date account of the ecology of the region (its climate, soils, vegetation, fauna and main ecological characteristics). This is followed by a history of land use, problems involved in its management, a review of current research and recommended land use practices. The common features of semi-arid ecosystems are brought together in a final section.
Author: Paolo D'Odorico
Publisher: Springer Science & Business Media
ISBN: 9781402042591
Category : History
Languages : en
Pages : 358
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Book Description
Ecohydrology emerges as a new field of research aiming at furthering our understanding of the earth system through the study of the interactions between the water cycle and vegetation. By combining the analysis of biotic and abiotic components of terrestrial ecosystems, this volume provides a synthesis of material on arid and semiarid landscapes, which is currently spread in a number of books and journal articles. The focus on water-limited ecosystems is motivated by their high sensitivity to daily, seasonal, and decadal perturbations in water availability, and by the ecologic, climatic, and economic significance of most of the drylands around the world. Conceived as a tool for scientists working in the area of the earth and environmental sciences, this book presents the basic principles of eco-hydrology as well as a broad spectrum of topics and advances in this research field. The chapters collected in this book have been contributed by authors with different expertise, who work in several arid areas around the World. They describe the various interactions among the biological and physical dynamics in dryland ecosystems, starting from basic processes in the soil-vegetation-climate system, to landscape-scale hydrologic and geomorphic processes, ecohydrologic controls on soil nutrient dynamics, and multiscale analyses of disturbances and patterns.
Author: Weile Wang
Publisher:
ISBN:
Category :
Languages : en
Pages : 402
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Book Description
Abstract: Terrestrial vegetation exerts an important influence on climate variability via the exchange of mass, energy, and momentum between the land surface and the atmosphere. This dissertation uses statistical techniques and stochastic models to investigate large scale vegetation/climate interactions in remotely-sensed vegetation datasets and observational climate records. Vegetation feedbacks on climate variability over the North American Grasslands are evaluated by the methodology of Granger causality, which examines statistical causal relationships in a coupled system. Results indicate that positive vegetation anomalies earlier in the growing season significantly "Granger cause" lower rainfall (and higher temperatures) later in summer. Coupled with the positive influence of precipitation on vegetation, these interactions suggest an oscillatory variability of vegetation, which is identified in observations. The observed vegetation-precipitation covariability is then simulated using a coupled stochastic model, which is derived from eco-hydrological principles in a semiarid environment. The model demonstrates that vegetation/precipitation interactions have distinct frequency characteristics, and are oscillatory at intraseasonal time scales, in agreement with observations. The model also indicates that this oscillatory behavior arises because enhanced vegetation depletes soil moisture faster than normal, which induces drier and warmer climate anomalies via the strong soil-moisture/precipitation coupling in this region. Extended analyses also identify intraseasonal oscillatory variability in vegetation anomalies over the boreal forests. This characteristic variability is likely induced by interactions between vegetation and temperature, which maintain a climatological thermal balance within the soil and the lower boundary layer of the atmosphere via the removal of excess heat from the surface through enhanced evapotranspiration. The cooling effect of vegetation on temperature is detected by Granger causality analyses, and is found to be most significant over the boreal forests in lower and central Siberia. Altogether, the findings of this dissertation highlight the role vegetation plays in regulating the water cycle and the energy balance between the surface and the atmosphere. These results present observational evidence for large-scale vegetation feedbacks, and also reveal important characteristics of the vegetation-climate system that deserve further investigation in the future.
Author: Kara M. Degenovine
Publisher:
ISBN: 9781617612152
Category : Arid regions
Languages : en
Pages : 0
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Book Description
Semi-arid climate regions receive low annual precipitation and intermediates between the desert climates and humid climates in ecological characteristics and agricultural potential. Semi-arid climates tend to provide scrubby vegetations in regions where they exist. There are two variations of the semi-arid climate, a hot semi-arid climate and a cold semi-arid climate. This book presents topical research data in the study of semi-arid environments, including the semi-arid environments of the El Melah Lagoon in Tunisia; improving reproductive outputs of small ruminants reared in semi-arid environments; the presence of cyanobacterial soil crusts in semi-arid ecosystems is associated with an increase in carbon and nitrogen sequestration; semi-arid vegetation in Brazil; and the semi-arid zone afforestation in northern Israel.
Author: Jianping Huang
Publisher: World Scientific
ISBN: 9811276196
Category : Science
Languages : en
Pages : 655
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Book Description
Semi-arid regions are ecological security barriers that prevent arid regions from expanding and turning into deserts. The expansion of arid regions and desertification seriously threaten ecological security, and human society cannot achieve sustainable development in an insecure ecological environment. As the transitional zone between arid and humid regions, semi-arid regions lay the foundation of ecological safety for the development of human society.This book provides an overview of processes and mechanisms that characterize semi-arid climate change both regionally and globally. It explains systematically theoretical concepts , including land-atmosphere interactions, ocean-atmosphere interactions, and factors that contribute to climate change, including the impact of human activities. A summary of recent progress in the research in the field and the future of semi-arid regions are also discussed.This book is a specialized monograph and textbook for graduate students of Earth sciences. It is also suitable for undergraduate or graduate students in related majors such as those engaged in atmospheric science, climate change studies, and Earth sciences.
Author: Groupe d'experts intergouvernemental sur l'évolution du climat
Publisher:
ISBN: 9789291691432
Category :
Languages : en
Pages : 151
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Book Description
Author:
Publisher: University of Arizona Press
ISBN: 0816523061
Category : Technology & Engineering
Languages : en
Pages : 351
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Book Description
The Changing Mile, originally published in 1965, was a benchmark in ecological studies, demonstrating the prevalence of change in a seemingly changeless place. Photographs made throughout the Sonoran Desert region in the late 1800s and early 1900s were juxtaposed with photographs of the same locations taken many decades later. The nearly one hundred pairs of images revealed that climate has played a strong role in initiating many changes in the region. This new book updates the classic by adding recent photographs to the original pairs, providing another three decades of data and showing even more clearly the extent of change across the landscape. During these same three decades, abundant information about climatic variability, land use, and plant ecology has accumulated, making it possible to determine causes of change with more confidence. Using nearly two hundred additional triplicate sets of unpublished photographs, The Changing Mile Revisited utilizes repeat photographs selected from almost three hundred stations located in southern Arizona, in the Pinacate region of Mexico, and along the coast of the Gulf of California. Coarse photogrammetric analysis of this enlarged photographic set shows the varied response of the region's major plant species to the forces of change. The images show vegetation across the entire region at sites ranging in elevation from sea level to a mile above sea level. Some sites are truly arid, while others are located above the desert in grassland and woodland. Common names are used for most plants and animals (with Latin equivalents in endnotes) to make the book more accessible to non-technical readers. The original Changing Mile was based upon a unique set of data that allowed the authors to evaluate the extent and magnitude of vegetation change in a large geographic region. By extending the original landmark study, The Changing Mile Revisited will remain an indispensable reference for all concerned with the fragile desert environment.
