Download or read book Waiau River Instream Habitat Based on 2 D Hydrodynamic Modelling written by Maurice John Duncan and published by . This book was released on 2009 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Minimum Flow Requirements for Instream Habitat in the Waiau River Southland from the Mararoa Weir to the Borland Burn written by and published by . This book was released on 1993 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geomorphic Analysis of River Systems written by Kirstie A. Fryirs and published by John Wiley & Sons. This book was released on 2012-09-26 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: Filling a niche in the geomorphology teaching market, this introductory book is built around a 12 week course in fluvial geomorphology. ‘Reading the landscape’ entails making sense of what a riverscape looks like, how it works, how it has evolved over time, and how alterations to one part of a catchment may have secondary consequences elsewhere, over different timeframes. These place-based field analyses are framed within their topographic, climatic and environmental context. Issues and principles presented in the first part of this book provide foundational understandings that underpin the approach to reading the landscape that is presented in the second half of the book. In reading the landscape, detective-style investigations and interpretations are tied to theoretical and conceptual principles to generate catchment-specific analyses of river character, behaviour and evolution, including responses to human disturbance. This book has been constructed as an introductory text on river landscapes, providing a bridge and/or companion to quantitatively-framed or modelled approaches to landscape analysis that are addressed elsewhere. Key principles outlined in the book emphasise the importance of complexity, contingency and emergence in interpreting the character, behaviour and evolution of any given system. The target audience is second and third year undergraduate students in geomorphology, hydrology, earth science and environmental science, as well as river practitioners who use geomorphic understandings to guide scientific and/or management applications. The primary focus of Kirstie and Gary’s research and teaching entails the use of geomorphic principles as a tool with which to develop coherent scientific understandings of river systems, and the application of these understandings in management practice. Kirstie and Gary are co-developers of the River Styles® Framework and Short Course that is widely used in river management, decision-making and training. Additional resources for this book can be found at: www.wiley.com/go/fryirs/riversystems.
Download or read book Braided River Ecology written by Duncan Peter Gray and published by Science & Technical Publishing Department of Conservation. This book was released on 2007 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: A braided river is one that, over some part of its length, flows in multiple, mobile channels across a gravel floodplain. In New Zealand, many braided rivers remain in a relatively unmodified condition, but increasing demands for hydro-electricity generation, irrigation, gravel extraction and flood protection works are placing pressure on these systems. However, apart from a limited number of studies on the ecology of individual species or reaches, there has been little coordinated ecological research to assess the overall values and function of braided river ecosystems in New Zealand. This review summarises the international and New Zealand literature on braided rivers, with particular emphasis on benthic invertebrate ecology. Braided rivers typically experience short-term channel migration within the active bed and greater lateral channel migration across the entire floodplain in the longer term. Channel migration occurs because steep headwater tributaries supply highly variable discharges and mobile erodable substrates to the mainstem. Braided rivers typically possess extended floodplains, which may contain a mosaic of floodplain habitats ranging from highly unstable main-stem channels to stable spring complexes. Main channel aquatic invertebrate communities are frequently low in diversity and dominated by the leptophlebiid mayfly Deleatidium spp., but also chironomids and elmid beetles. In contrast, floodplain springs can have highly diverse communities rich in amphipods, mayflies, caddis, snails and chironomids. Groundwater and floodplain pond habitats also occur frequently and can contain several specialist taxa. Braided rivers and their floodplains are spatially complex, temporally dynamic habitats with high landscape- and reach-scale biodiversity values. The challenge facing managers is to protect this biodiversity within the context of increasing human demands on the rivers. This report highlights the particular threats and management issues associated with braided rivers in New Zealand and identifies areas where future research is required.
Download or read book Stream Ecology written by J. David Allan and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Running waters are enormously diverse, ranging from torrential mountain brooks, to large lowland rivers, to great river systems whose basins occupy subcontinents. While this diversity makes river ecosystems seem overwhelmingly complex, a central theme of this volume is that the processes acting in running waters are general, although the settings are often unique. The past two decades have seen major advances in our knowledge of the ecology of streams and rivers. New paradigms have emerged, such as the river continuum and nutrient spiraling. Community ecologists have made impressive advances in documenting the occurrence of species interactions. The importance of physical processes in rivers has attracted increased attention, particularly the areas of hydrology and geomorphology, and the inter-relationships between physical and biological factors have become better understood. And as is true for every area of ecology during the closing years of the twentieth century it has become apparent that the study of streams and rivers cannot be carried out by excluding the role of human activities, nor can we ignore the urgency of the need for conservation. These developments are brought together in Stream Ecology: Structure and function of running waters, designed to serve as a text for advanced undergraduate and graduate students, and as a reference book for specialists in stream ecology and related fields.
Download or read book National Water Summary 1988 89 written by and published by . This book was released on 1991 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Water Summary written by and published by . This book was released on 1993 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Colli Albani Volcano written by R. Funiciello and published by Geological Society of London. This book was released on 2010 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Colli Albani Volcano contains 21 scientific contributions on stratigraphy, volcanotectonics, geochronology, petrography and geochemistry, hydrogeology, volcanic hazards, geophysics and archaeology, and a new 1:50 000 scale geological map of the volcano. The proximity to Rome and the interconnection between volcanic and human history also make this volcano of interest for both specialists and non-specialists.
Download or read book National Water Summary on Wetland Resources written by J. D. Fretwell and published by . This book was released on 1996 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A View of the River written by Luna Bergere Leopold and published by Harvard University Press. This book was released on 1994 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents a description of the river (a natural watercourse, usually freshwater, flowing towards an ocean, a lake, a sea, or another river), including its shape, size, organization, and action, along with a consistent theory that explains much of the observed character of channels.
Download or read book Freshwaters of New Zealand written by Jon S. Harding and published by . This book was released on 2004 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canterbury Land and Water Regional Plan written by Canterbury (N.Z.). Environment Canterbury and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bioorganic Chemistry written by SIDNEY M AUTOR HECHT and published by Oxford University Press on Demand. This book was released on 1998 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Each chapter begins with an introduction that includes basic principles, a summary of key findings which support current research in the field, and an overview of current research activity. The remainder of each chapter deals in greater detail with a number of recent studies that illustrate the nature of ongoing activity in the field.
Download or read book Landscape Sensitivity written by David S. G. Thomas and published by . This book was released on 1993-06-22 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Divided into three sections beginning with landscape sensitivity to geomorphic processes and climatic change along with overviews, case studies and modeling. The second part considers sensitivity regarding agricultural and pastoral land use issues. Lastly, it deals with sensitivity in relation to built environments.
Download or read book Biology Of Polluted Waters written by H.B.N. HYNES and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
