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Author:
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ISBN:
Category : Science
Languages : en
Pages : 146
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Book Description
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 146
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Book Description
Author:
Publisher:
ISBN:
Category : Social sciences
Languages : en
Pages : 250
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Author:
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ISBN:
Category : Social sciences
Languages : en
Pages : 220
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Category : Biology
Languages : en
Pages : 278
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Author: M. Naeem
Publisher: Springer
ISBN: 3319588419
Category : Science
Languages : en
Pages : 571
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Book Description
This book explores the agricultural, commercial, and ecological future of plants in relation to mineral nutrition. It covers various topics regarding the role and importance of mineral nutrition in plants including essentiality, availability, applications, as well as their management and control strategies. Plants and plant products are increasingly important sources for the production of energy, biofuels, and biopolymers in order to replace the use of fossil fuels. The maximum genetic potential of plants can be realized successfully with a balanced mineral nutrients supply. This book explores efficient nutrient management strategies that tackle the over and under use of nutrients, check different kinds of losses from the system, and improve use efficiency of the plants. Applied and basic aspects of ecophysiology, biochemistry, and biotechnology have been adequately incorporated including pharmaceuticals and nutraceuticals, agronomical, breeding and plant protection parameters, propagation and nutrients managements. This book will serve not only as an excellent reference material but also as a practical guide for readers, cultivators, students, botanists, entrepreneurs, and farmers.
Author: Ranjith Dissanayake
Publisher: Springer Nature
ISBN: 9819934710
Category : Architecture
Languages : en
Pages : 867
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Book Description
This book highlights the latest knowledge and innovations in the fields of civil engineering and construction industry striving for a sustainable built environment. It consists of high quality and innovative research findings selected from the proceedings of the 13th ICSBE 2022 under the themes of sustainable construction, urban green infrastructure and planning, rainwater harvesting and water conservation, high-performance concrete, indoor environmental quality and indoor plants, wind and hydro-power energy, waste and wastewater management for enhanced sustainability, impacts of climate change, carbon footprint, global climate model and landscaping, material flows and industrial ecology, sustainable materials, etc.
Author: Ramasamy Santhanam
Publisher: CRC Press
ISBN: 1482262053
Category : Medical
Languages : en
Pages : 300
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Book Description
The nutritional benefits of marine flora and fauna are well known. Fish and crustaceans provide high-quality sources of amino acids—nutritionally important proteins found in only small amounts in cereals and grains. Nutrients and minerals in seafood can improve brain development and reproduction and there are strong links between fish and heart health. Similarly, other organisms such as phytoplankton and invertebrates possess several nutrients of health importance. All of these benefits are critical to global nutrition and particularly important to food-deficient, low-income countries. The first book of its kind, Nutritional Marine Life explores the nutritional characteristics of the different species of the following groups of edible marine life: Phytoplankton Seaweeds and marsh plants Jellyfish Crustaceans Mollusks Echinoderms Prochordate Fish Turtles Mammals For each species, the book discusses its classification, common name, habitat, global distribution, biological features, and nutritional facts. The highly accessible style and high-quality photographs make it easy to identify nutritionally and commercially important marine species. The book is ideal for students and researchers in fisheries and aquaculture and in related marine biology and biotechnology disciplines. It is also suitable as a reference for practitioners in those fields as well as dieticians, food scientists, and physicians interested in knowing about the health benefits of seafood.
Author: Silva, E. I. L.
Publisher: IWMI
ISBN: 9290907789
Category : Nature
Languages : en
Pages : 126
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Book Description
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.
Author: Bertram Hughes Farmer
Publisher: Cambridge University Press
ISBN: 9780521249423
Category : Business & Economics
Languages : en
Pages : 412
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Book Description
This book is a critical examination of the truth behind the stereotype that there is a Green Revolution in agricultural technology. Twenty-one specialists in the field of development studies look at the reality of agrarian change, either through historical analysis, or through in-depth village field-work, or from their experience as development planners.
Author: Dan Bahadur Pal
Publisher: Springer Nature
ISBN: 9811691355
Category : Science
Languages : en
Pages : 290
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Book Description
This edited book is a comprehensive collection of chapters on various clean energy technology such as solar energy, waste biomass as energy, hydro-electricity generation, biodiesel production from biomass and strategies to cater the demand of clean renewable energy. Clean energy technologies also enhance economic growth by increasing the supply of energy demand and tackling environmental challenges and their impacts due to the use of other conventional sources of energy. The conventional/non-conventional energy production methods are efficient but it has adverse effects on environment and human health. As environmental concerns are not avoidable therefore the necessity of clean energy production comes in to the picture. The clean energy can be produced by different wastes which are caused for the environmental pollution. This book covers various aspects of new and renewable clean energy production technology and its utilization in different fields. This is a useful reading material for students and researchers involved in clean energy study.
