Download or read book Making Aquatic Weeds Useful written by National Research Council and published by The Minerva Group, Inc.. This book was released on 2002-06 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This National Academy of Sciences report describes ways to exploit aquatic weeds for grazing, and by harvesting and processing for use as compost, animal feed, pulp, paper, and fuel. The book also describes utilization for sewage and industrial wastewater.Aquatic weeds have always existed, but in recent decades their effects have been magnified by man?s more intensive use of natural water bodies - his modifying them into canals and dams, polluting them with farm and city wastewaters, and introducing aggressive plant species into new locations. These plants, among the most prolific on earth, grow luxuriantly in the tropics, weigh hundreds of tons per hectare, and can be a serious hindrance to a nation?s development efforts. Eradication of the weeds has proved impossible, and even reasonable control is difficult. Turning these weeds to productive use would be desirable, but only limited research has been carried out.This report examines methods for controlling aquatic weeds and using them to best advantage, especially those methods that show promise for less-developed countries. It emphasizes techniques for converting weeds for feed, food, fertilizer, and energy production. It examines, for example, biological control techniques in which herbivorous tropical animals (fish, waterfowl, rodents, and other mammals) convert the troublesome plants directly to meat.
Download or read book Making Aquatic Weeds Useful written by and published by National Academies. This book was released on 1976 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Workshop on Aquatic Weeds written by Gerald E. Walsh and published by . This book was released on 1981 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Weed Control Methods For Recreation Facilities Management written by Gangstad and published by CRC Press. This book was released on 2018-01-18 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is the purpose of this volume to survey and assess the management problems of recreation waters and to present case problems from the field in which the technical data, published literature, and the operations mechanics are given in sufficient detail to provide a format for practical analysis and application. Special emphasis has been given to measures of control of Eurasian watermilfoil.The primary and secondary uses of a body of water determine the need, frequency, and kind of aquatic plant control required to meet the needs of a specific situation. That is to say, a given body of water may be used primarily, or even exclusively for such activities as fishing, boating, or swimming, and the water itself may be used for domestic (potable water), industrial production, and/or agriculture. These uses may seem to be incompatible in themselves, but it is incumbent upon management to supply the optimum conditions for total water use.
Download or read book Ecology of Kalimantan written by Kathy MacKinnon and published by Tuttle Publishing. This book was released on 2013-02-05 with total page 783 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Ecology of Kalimantan is a comprehensive ecological survey of one of Indonesia's largest and most diverse islands. This book presents a complete summary of our current scientific knowledge about Borneo including the rainforest and riverine habitats that are endangered by logging and industrial development, along with a discussion of land use patterns and current problems. Kalimantan is the Indonesian portion of the huge island of Borneo. Kalimantan has played a key role in Indonesia’s economic development and is a major earner of foreign revenue due to the island's rich natural resources: forests, oil, gas, coal, and other minerals. In this book the authors argue that Kalimantan can be developed, but within tight ecological constraints and with great care. This book remains a standard reference for scientists, anthropologists, writers, and anyone interested in the region.
Download or read book Catalogue of Research Literature for Development Food production and nutrition development and economics education and human resources health selected development areas written by United States. Agency for International Development. Bureau for Technical Assistance and published by . This book was released on 1977 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biology and ecology of weeds written by W. Holzner and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: Weeds are a fascinating study for specialists, not only because of their economic importance, but also since in this case biology must be combined with history and agriculture (and its economic aspects). Thus, weed scientists may be concerned with pure basic research, concentrating on general aspects, or with applied science, i.e. having a practical orientation. One of the aims of this book is to create a synthesis between these two branches of study and to review the literature of both fields. The agrestals, the weeds of arable land ~ the most important group from an economic point of view ~ was chasen as the main topic. Other weed groups could only be mentioned briefly (e.g. grassland weeds), or superficially (e.g. aquatic weeds), or had to be omitted completely (e.g. ruderals, because they are so heterogeneous), to keep this volume to an acceptable size and price. Nevertheless, nearly all subsections of botanical science have been treated.
Download or read book Aquatic Weeds written by and published by . This book was released on 2021-03 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aquatic Weeds: A Pocket Identification Guide for the Carolinas is a practical resource containing color images and descriptions of aquatic weed species commonly found in North Carolina and South Carolina. Prepared by aquatic weed specialists and researchers at NC State University, this guide provides information about each species, including identifying characteristics, habitat, and potential human-health concerns. This guide is printed on water-resistant paper, making it the perfect field companion for researchers and lake managers alike.
Download or read book Development Digest written by and published by . This book was released on 1978 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecology and management of aquatic vegetation in the Indian subcontinent written by B. Gopal and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Life originated and evolved in water. Later the The tropical countries where the need to under plants moved out of water, conquered the land and stand the natural ecosystems is far greater because became dominant over it. The evolution through they are under intensive pressure from develop the millennia resulted in enormous complexity of ment from a rapidly growing human population, form, tissue organisation, reproductive mechan have generally devoted much less attention to the isms and specialisation of taxa in different niches. studies of aquatic ecosystems. The Indian subconti At some stage during evolution, some plants devel nent is a well-recognised biogeographic region with oped appropriate morphological and physiological a distinct geological history, climate, soils and adaptations and reverted back to the aquatic and/ biota. It is also distinct in the history of human civilisation and cultures which have a profound bear or semi-aquatic habitat. These plants, perhaps with the exception of a few ing on the natural ecosystems. This book is in with beautiful flowers, have attracted little atten tended to provide the state of our knowledge of the tion from mankind. The fact that humans evolved aquatic and semi-aquatic vegetation in the inland in a tropical forest or savanna environment appears freshwaters of the subcontinent. The book covers responsible for a permanent bias in human atti only the herbaceous vegetation, since there is al tudes towards land and its biota.
Download or read book Reframing the Vernacular Politics Semiotics and Representation written by Gusti Ayu Made Suartika and published by Springer Nature. This book was released on 2019-10-29 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to reflect on ''vernacularity'' and culture. It concentrates on two major domains: first it attempts to reframe our understanding of vernacularity by addressing the subject in the context of globalisation, cross-disciplinarity, and development, and second, it discusses the phenomenon of how vernacularity has been treated, used, employed, manipulated, practiced, maintained, learned, reconstructed, preserved and conserved, at the level of individual and community experience. Scholars from a wide variety of knowledge fields have participated in enriching and engaging discussions, as to how both domains can be addressed. To expedite these aims, this book adopts the theme "Reframing the Vernacular: Politics, Semiotics, and Representation",organised around the following major sub-themes: • Transformation in the vernacular built environment • Vernacular architecture and representation • The meaning of home • Symbolic intervention and interpretation of vernacularity • The semiotics of place • The politics of ethnicity and settlement • Global tourism and its impacts on vernacular settlement • Vernacular built form and aesthetics • Technology and construction in vernacular built forms • Vernacular language - writing and oral traditions
Download or read book Water Quality Renovation of Animal Waste Lagoons Utilizing Aquatic Plants written by and published by . This book was released on 1978 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Good Farmers written by Gene C. Wilken and published by Univ of California Press. This book was released on 1990 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A I D Research and Development Abstracts written by and published by . This book was released on 1979 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Organic Waste Recycling written by Chongrak Polprasert and published by IWA Publishing. This book was released on 2007-08-16 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the principles and practices of technologies for the control of pollution originating from organic wastes (e.g. human faeces and urine, wastewater, solid wastes, animal manure and agro-industrial wastes) and the recycling of these organic wastes into valuable products such as fertilizer, biofuels, algal and fish protein and irrigated crops. Each recycling technology is described with respect to: Objectives Benefits and limitations Environmental requirements Design criteria of the process Use of the recycled products Public health aspects Organic Waste Recycling Includes case studies, examples, exercises and questions This book is intended as a text or reference book for third or fourth year undergraduate students interested in environmental science, engineering and management, and graduate students working in the environment-related disciplines. It also serves as a reference text for policy makers, planners and professionals working in the environment and sustainable development fields.
Download or read book Environmental Management In Tropical Agriculture written by Robert Goodland and published by CRC Press. This book was released on 2019-03-04 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: Addressing the problem of the high cost of agricultural development in tropical regions, this book summarizes the environmental concerns associated with tropical agriculture. The authors highlight major environmental hazards confronted in tropical agriculture and suggest specific management options that could be used to reduce or avoid them. The fi
Download or read book Organic Matter and Rice written by and published by Int. Rice Res. Inst.. This book was released on 1984 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt:
