Morphological And Hydrological Aspects Of The Three Reaches Of The Sullivan Creek In Canberra Australia A Student S Overview
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Morphological And Hydrological Aspects Of The Three Reaches Of The Sullivan Creek In Canberra Australia A Student S Overview
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Author : Omar Pidani
language : en
Publisher: GRIN Verlag
Release Date : 2019-08-20
Morphological And Hydrological Aspects Of The Three Reaches Of The Sullivan Creek In Canberra Australia A Student S Overview written by Omar Pidani and has been published by GRIN Verlag this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-08-20 with Science categories.
Academic Paper from the year 2008 in the subject Geography / Earth Science - Physical Geography, Geomorphology, Environmental Studies, grade: High Distinction, The Australian National University (Fenner School of Environment and Society), course: SRES6007 Hydrology and Natural Resource Management, language: English, abstract: This field report was conducted in 2008 as part of the requirements for hydrology and natural resource management course offered at the Fenner School of Environment and Society and is aimed at describing the morphological and hydrological features of several reaches of the Creek at that time. This study is aimed at familiarizing students with sampling techniques for water quality and stream flow (inclusive flow velocity), and analysis of the data collected. The main objectives of this field observation are: To assess the stream condition based on its water quality and loading ability of the stream. To understand various factors that may contribute to the water quality (physical, biological and chemical properties) and stream flow (surface flow, base flow, vegetative covers, anthropogenic factors, channel, shape and structure, etc) To compare water quality parameters in the 3 reaches, namely at constructed and instream wetland at David Street O’Connor, the concrete line section from David Street wetlands to Barry Drive Gross Pollutant Trap (GPT) and the earthen channel from Barry Drive to Lake Burley Griffin.
Morphological And Hydrological Aspects Of The Three Reaches Of The Sullivan Creek In Canberra Australia A Student S Overview
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Author : Omar Pidani
language : en
Publisher:
Release Date : 2019-07-11
Morphological And Hydrological Aspects Of The Three Reaches Of The Sullivan Creek In Canberra Australia A Student S Overview written by Omar Pidani and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-07-11 with categories.
Academic Paper from the year 2008 in the subject Geography / Earth Science - Physical Geography, Geomorphology, Environmental Studies, grade: High Distinction, The Australian National University (Fenner School of Environment and Society), course: SRES6007 Hydrology and Natural Resource Management, language: English, abstract: This field report was conducted in 2008 as part of the requirements for hydrology and natural resource management course offered at the Fenner School of Environment and Society and is aimed at describing the morphological and hydrological features of several reaches of the Creek at that time. This study is aimed at familiarizing students with sampling techniques for water quality and stream flow (inclusive flow velocity), and analysis of the data collected. The main objectives of this field observation are: To assess the stream condition based on its water quality and loading ability of the stream. To understand various factors that may contribute to the water quality (physical, biological and chemical properties) and stream flow (surface flow, base flow, vegetative covers, anthropogenic factors, channel, shape and structure, etc) To compare water quality parameters in the 3 reaches, namely at constructed and instream wetland at David Street O'Connor, the concrete line section from David Street wetlands to Barry Drive Gross Pollutant Trap (GPT) and the earthen channel from Barry Drive to Lake Burley Griffin.
Stream Corridor Restoration
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Author :
language : en
Publisher: National Technical Info Svc
Release Date : 1998
Stream Corridor Restoration written by and has been published by National Technical Info Svc this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Technology & Engineering categories.
This document is a cooperative effort among fifteen Federal agencies and partners to produce a common reference on stream corridor restoration. It responds to a growing national and international interest in restoring stream corridors.
Impacts Of Climate Change On Fisheries And Aquaculture
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Author : Food and Agriculture Organization of the United Nations
language : en
Publisher: Food & Agriculture Org.
Release Date : 2019-01-06
Impacts Of Climate Change On Fisheries And Aquaculture written by Food and Agriculture Organization of the United Nations and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-01-06 with Technology & Engineering categories.
This report indicates that climate change will significantly affect the availability and trade of fish products, especially for those countries most dependent on the sector, and calls for effective adaptation and mitigation actions encompassing food production.
Water Cultural Diversity And Global Environmental Change
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Author : Barbara Rose Johnston
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-12-07
Water Cultural Diversity And Global Environmental Change written by Barbara Rose Johnston and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-12-07 with Science categories.
Co-published with UNESCO A product of the UNESCO-IHP project on Water and Cultural Diversity, this book represents an effort to examine the complex role water plays as a force in sustaining, maintaining, and threatening the viability of culturally diverse peoples. It is argued that water is a fundamental human need, a human right, and a core sustaining element in biodiversity and cultural diversity. The core concepts utilized in this book draw upon a larger trend in sustainability science, a recognition of the synergism and analytical potential in utilizing a coupled biological and social systems analysis, as the functioning viability of nature is both sustained and threatened by humans.
Climate Change 2001 Mitigation
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Author : Bert Metz
language : en
Publisher: Cambridge University Press
Release Date : 2001-07-12
Climate Change 2001 Mitigation written by Bert Metz and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-07-12 with Science categories.
Some issues addressed in this Working Group III volume are mitigation of greenhouse gas emissions, managing biological carbon reservoirs, geo-engineering, costing methods, and decision-making frameworks.
The Los Angeles River
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Author : Blake Gumprecht
language : en
Publisher: JHU Press
Release Date : 2001-04-30
The Los Angeles River written by Blake Gumprecht and has been published by JHU Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-04-30 with Architecture categories.
Winner of the J. B. Jackson Prize from the Association of American Geographers Three centuries ago, the Los Angeles River meandered through marshes and forests of willow and sycamore. Trout spawned in its waters and grizzly bears roamed its shores. The bountiful environment the river helped create supported one of the largest concentrations of Indians in North America. Today, the river is made almost entirely of concrete. Chain-link fence and barbed wire line its course. Shopping carts and trash litter its channel. Little water flows in the river most of the year, and nearly all that does is treated sewage and oily street runoff. On much of its course, the river looks more like a deserted freeway than a river. The river's contemporary image belies its former character and its importance to the development of Southern California. Los Angeles would not exist were it not for the river, and the river was crucial to its growth. Recognizing its past and future potential, a potent movement has developed to revitalize its course. The Los Angeles River offers the first comprehensive account of a river that helped give birth to one of the world's great cities, significantly shaped its history, and promises to play a key role in its future.
Fundamentals Of Rice Crop Science
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Author : Shouichi Yoshida
language : en
Publisher: Int. Rice Res. Inst.
Release Date : 1981
Fundamentals Of Rice Crop Science written by Shouichi Yoshida and has been published by Int. Rice Res. Inst. this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Rice categories.
Growth and development of the rice plant. Climatic environments and its influence. Mineral nutrition of rice. Nutritional disorders. Photosynthesis and respiration. Rice plant characters in relation to yielding ability. Physiological analysis of rice yield.
Lagoons Of Sri Lanka
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Author : Silva, E. I. L.
language : en
Publisher: IWMI
Release Date : 2013-03-01
Lagoons Of Sri Lanka written by Silva, E. I. L. and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-01 with Nature categories.
Sri Lanka, an island in the Indian Ocean, has lagoons along 1,338 km of its coastline. They experience low-energy oceanic waves and semidiurnal microtidal currents. The Sri Lankan coastal lagoons are not numerous but they are diverse in size, shape, configuration, ecohydrology, and ecosystem values and services. The heterogeneous nature, in general, and specific complexities, to a certain extent, exhibited by coastal lagoons in Sri Lanka are fundamentally determined by coastal and adjoining hinterland geomorphology, tidal fluxes and fluvial inputs, monsoonal-driven climate and weather, morphoedaphic attributes, and cohesive interactions with human interventions.Most coastal lagoons in Sri Lanka are an outcome of mid-Holocene marine transgression and subsequent barrier formation and spit development enclosing the water body between the land and the sea. This process has varied from one coastal stretch to another due to wave-derived littoral drift, sediment transport by tidal fluxes, fluvial inputs and wave action or, in other words, sea-level history, shore-face dynamics and tidal range as the three major factors that control the origin and maintenance of the sandy barrier, the most important features for the formation and evolution of coastal lagoons with their landward water mass. In certain stretches of Sri Lanka’s coastline, formation of the barrier spit was very active due to shore-face dynamics that resulted in chains of shore parallel, elongated lagoons. They are among the most productive in terms of ecosystem yield and show some similarities to large tropical lagoons with respect to sea entrance, zonation, biodiversity and ecosystem services. However, some of them become seasonally hypersaline due to lack of freshwater input and high evaporation. Functions and processes of some of these water bodies are fairly known. There are a fair number of small back-barrier lagoons of different shapes and sizes whose origin goes back to sea-level history. They are located on low-energy coasts with prominent beach ridges and restricted hinterland geomorphology. Mixing processes of these landward indentations are hindered by elevated sand dunes, and their salinity increases due to poor freshwater input and high evaporation leading to seasonally hypersaline conditions. These sedimented lagoons, primarily confined to the southeastern coast of the island, are biologically the least productive, with limited ecosystem values and services. Another group of moderately elongated semicircular, slightly large lagoons in the same coast, formed exclusively by submergence due to mid-Holocene sea-level rises, do not receive sufficient freshwater input leading to seasonally hypersaline conditions. They are also biologically unproductive but some are ecologically important since they provide habitats conducive to migratory birds. In contrast, some lagoons on the southern coast receive sufficient freshwater via streams draining the wet zone, maintain more estuarine salinities, exhibit rich biodiversity and serve as functional resource units. Lagoons formed by mid-Holocene submergence and recession of water level with simultaneous chain barrier formation on the high energy southwest coast, which includes cliffs, small bays and headlands, show peculiar configurations and link channel characteristics. Some of these irregular water bodies have clusters of small isles and luxuriant mangrove swamps with high biodiversity but not very rich in catadromous finfish and shellfish species due to the restricted nature of the entrance channel and nondistinct salinity gradients. The barrier-built, seasonally hypersaline lagoon complex in the Jaffna Peninsula, the largest lagoon system in the country with multiple perennial entrances show extremely narrow salinity ranges towards the upper limit of salinity. The main lagoon is elongated and the shore parallel to eastward and southward extensions is connected by narrow channels. The other lagoon in the Jaffna Peninsula is elongated, shore parallel and ribbon-shaped and receives tidal water throughout the year but freshwater is received only from precipitation and surface runoff. Even though the lagoons in the peninsula are extremely rich in ecosystem heterogeneity their hydrology and hydrodynamics have been severely disturbed by infrastructural development for transportation and by attempts to create a freshwater river for Jaffna. There are a few virgin lagoons of moderate size also on the northern coast, south of the Jaffna Peninsula on both the east and west sides. They look very typical tropical lagoons rich in biodiversity and biological production but their structure, functions and values are virtually unknown in scientific or socioeconomic terms. The lagoons located on the east coast are not numerous but relatively large in extent. They are also an outcome not only of mid-Holocene sea-level rises but of submerged multi-delta valleys or abandoned paleo estuaries. When inundated, the multi-delta valley configuration became elongated and is shore parallel with a smooth seaward shoreline; both shorelines become irregular when coastal waves are weak, and internal waves are created by the action of local winds. Configuration of a lagoon formed by inundation of an abandoned river valley is irregular with a long entrance channel extended landward. These lagoons are highly productive with a variety of associated ecosystems, large open water areas and wide perennial sea entrances. When the lagoon is too much elongated, zonation is prominent due to fewer entrance effects. Lagoons form a particular type of natural capital which generates use values (fish, shrimp, fuelwood, salt, fodder, ecotourism, anchorage, recreation, etc.) and nonuse values (habitat preservation, biodiversity, ecosystem linkages, etc.) contributing positively towards improving the human well-being. Of many values of lagoons in Sri Lanka, only the extractive values are generally utilized at present, by way of fish and shrimp catches, salt production and use of mangrove for various purposes. Besides, coastal lagoons generate a range of nonextractive use values and nonuse values, which could add towards the total economic value. Misuse has taken place at several instances when “use” adversely affects the status of the resources or the health of the ecosystem due to vulnerability and poverty, population pressure, urbanization, development activities and multi-stakeholder issues. The status of lagoon resources shows that the resources in the majority of Sri Lankan lagoons still remain satisfactory, somewhat good or very good. Nevertheless, concerns for management of lagoons in Sri Lanka exist only where “use values” (extractive values, such as fish and shrimp) exist. There is no evidence of resources management in lagoons for inspirational, scholarly values or tacit knowledge of the same. Management for use values exhibits several stages from zero management to comanagement via community management and state intervention. Most of Sri Lanka’s lagoons have the potential for generating high extractive and nonextractive use values which could improve the human well-being, while maintaining resources sustainability. Unfortunately, these potentials have not been understood or “seen” yet by the relevant authorities, although a few instances of exploring this potential were noticed.
Stream Ecology
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Author : J. David Allan
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Stream Ecology written by J. David Allan and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
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.