Mededelingen Landbouwhogeschool, Wageningen
Author : Landbouwhogeschool Wageningen
Publisher :
Page : 708 pages
File Size : 22,63 MB
Release : 1983
Category : Agriculture
ISBN :
Author : Landbouwhogeschool Wageningen
Publisher :
Page : 708 pages
File Size : 22,63 MB
Release : 1983
Category : Agriculture
ISBN :
Author : National Agricultural Library (U.S.)
Publisher :
Page : 1352 pages
File Size : 49,39 MB
Release : 1974
Category : Agriculture
ISBN :
Author : National Agricultural Library (U.S.)
Publisher :
Page : 1392 pages
File Size : 33,30 MB
Release : 1976
Category : Agriculture
ISBN :
Author : National Agricultural Library (U.S.)
Publisher :
Page : 170 pages
File Size : 17,13 MB
Release : 1963
Category : Agriculture
ISBN :
Author :
Publisher :
Page : 1098 pages
File Size : 50,91 MB
Release : 1952
Category : Agriculture
ISBN :
Author :
Publisher :
Page : 190 pages
File Size : 37,98 MB
Release : 1980
Category : Chloroneb
ISBN :
Author : National Agricultural Library (U.S.)
Publisher :
Page : 186 pages
File Size : 49,85 MB
Release : 1973
Category : Agriculture
ISBN :
Author : Marieke Doorenbosch
Publisher : Sidestone Press
Page : 284 pages
File Size : 34,90 MB
Release : 2013-11-21
Category : Architecture
ISBN : 9088901929
Barrows, i.e. burial mounds, are amongst the most important of Europe’s prehistoric monuments. Across the continent, barrows still figure as prominent elements in the landscape. Many of these mounds have been excavated, revealing much about what was buried inside these intriguing monuments. Surprisingly, little is known about the landscape in which the barrows were situated and what role they played in their environment. Palynological data, carrying important clues on the barrow environment, are available for hundreds of excavated mounds in the Netherlands. However, while local vegetation reconstructions from these barrows exist, a reconstruction of the broader landscape around the barrows has yet to be made. This makes it difficult to understand their role in the prehistoric cultural landscape. In this book a detailed vegetation history of the landscape around burial mounds is presented. Newly obtained and extant data derived from palynological analyses taken from barrow sites are (re-)analysed. Methods in barrow palynology are discussed and further developed when necessary. Newly developed techniques are applied in order to get a better impression of the role barrows played in their environment. It is argued in this book that barrows were built on existing heaths, which had been and continued to be maintained for many generations by so-called heath communities. These heaths, therefore, can be considered as ‘ancestral heaths’. The barrow landscape was part of the economic zone of farming communities, while the heath areas were used as grazing grounds. The ancestral heaths were very stable elements in the landscape and were kept in existence for thousands of years. In fact, it is argued that these ancestral heaths were the most important factor in structuring the barrow landscape.
Author : R.A. Feddes
Publisher : Springer Science & Business Media
Page : 392 pages
File Size : 41,30 MB
Release : 2004-10-11
Category : Science
ISBN : 9781402029189
Mankind has manipulated the quantity and quality of soil water for millennia. Food production was massively increased through fertilization, irrigation and drainage. But malpractice also caused degradation of immense areas of once fertile land, rendering it totally unproductive for many generations. In populated areas, the pollutant load ever more often exceeds the soil’s capacity for buffering and retention, and large volumes of potable groundwater have been polluted or are threatened to be polluted in the foreseeable future. In the past decades, the role of soil water in climate patterns has been recognized but not yet fully understood. The soil-science community responded to this diversity of issues by developing numerical models to simulate the behavior of water and solutes in soils. These models helped improve our understanding of unsaturated-zone processes and develop sustainable land-management practices. Aimed at professional soil scientists, soil-water modelers, irrigation engineers etc., this book discusses our progress in soil-water modeling. Top scientists present case studies, overviews and analyses of strengths, weaknesses, opportunities and threats related to soil-water modeling. The contributions cover a wide range of spatial scales, and discuss fundamental aspects of unsaturated-zone modeling as well as issues related to the application of models to real-world problems.
Author : S. Matsunaka
Publisher : Elsevier
Page : 582 pages
File Size : 45,96 MB
Release : 2013-10-22
Category : Science
ISBN : 1483150453
Pesticide Chemistry: Human Welfare and the Environment, Volume 3: Mode of Action, Metabolism and Toxicology covers the proceeding of the Fifth International Congress of Pesticide Chemistry. This book is organized into three parts that tackle relevant issues regarding the use of pesticide. The opening part tackles topics relevant to the biochemistry of pests and mode of action of pesticides, such as influence of chlorinated and parathyroid insecticide on cellular calcium regulatory mechanisms; behavioral and lethal actions of amidines on invertebrates; and insect chitin synthetase as biochemical probe for insecticidal compounds. The second part encompasses metabolism and degradation of pesticides and xenobiotics and includes topics on propesticides; selective toxicity conferred by activation; and comparative biochemistry of animal, plant, and microorganism oxidases. The last part covers the toxicology of pesticides and xenobiotics, including the role of biochemical studies in modern toxicological assessment of pesticides; neurophysiological and behavioral assessment of pesticide toxicity; and genetic toxicology applied to the assessment of mutagenic, carcinogenic, and teratogenic action of pesticides and related compounds. This book will be of great interest to chemists, biologists, botanists, and entomologists or professionals whose line of work involves the use of pesticides and who are concerned with pesticide side-effects to the users and the environment.