Vegetation and Climate Interactions in Semi-arid Regions - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Vegetation and Climate Interactions in Semi-arid Regions write by A. Henderson-Sellers. This book was released on 1991. Vegetation and Climate Interactions in Semi-arid Regions available in PDF, EPUB and Kindle.
Vegetation and climate interactions in semi-arid regions
Vegetation and climate interactions in semi-arid regions - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Vegetation and climate interactions in semi-arid regions write by A. Henderson-Sellers. This book was released on 2012-12-06. Vegetation and climate interactions in semi-arid regions available in PDF, EPUB and Kindle. 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.
Vegetation-Climate Interaction
Vegetation-Climate Interaction - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Vegetation-Climate Interaction write by Jonathan Adams. This book was released on 2007-04-27. Vegetation-Climate Interaction available in PDF, EPUB and Kindle. 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.
Management of Semi-Arid Ecosystems
Management of Semi-Arid Ecosystems - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Management of Semi-Arid Ecosystems write by B.H. Walker. This book was released on 2012-12-02. Management of Semi-Arid Ecosystems available in PDF, EPUB and Kindle. 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.
Detecting and Modeling Large-scale Interactions Between Vegetation, Precipitation, and Temperature Over Temperate-semiarid and Boreal Climate Regimes
Detecting and Modeling Large-scale Interactions Between Vegetation, Precipitation, and Temperature Over Temperate-semiarid and Boreal Climate Regimes - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Detecting and Modeling Large-scale Interactions Between Vegetation, Precipitation, and Temperature Over Temperate-semiarid and Boreal Climate Regimes write by Weile Wang. This book was released on 2006. Detecting and Modeling Large-scale Interactions Between Vegetation, Precipitation, and Temperature Over Temperate-semiarid and Boreal Climate Regimes available in PDF, EPUB and Kindle. 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.
