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A fascinating account of woodland natural history for all those concerned with woodland management and ecology.
Periodic comprehensive overviews of the status of the diverse organisms that make up wildlife are essential to determining trends, threats and future prospects. Just over 25 years ago, leading authorities on different kinds of wildlife came together to prepare an assessment of their status of a wide range of organisms in Great Britain and Ireland in The Changing Flora and Fauna of Britain, also edited by Professor David L. Hawksworth CBE. Now, in The Changing Wildlife of Great Britain and Ireland, he has gathered together some of the original and also new contributors to review changes since that time and look to the future. Contributions range from viruses, diatoms, fungi, lichens, mites and nematodes; through butterflies, dragonflies, flies and slugs; to flowering plants, ferns, mammals, birds and fish. The state of knowledge in different groups is assessed, and the effectiveness of statutory and other measures taken to safeguard wildlife considered. The picture is far from bleak, ameliorating sulphur dioxide levels have benefited sensitive lichens and mosses in a dramatic way, water quality improvement has been beneficial, there have been few certain extinctions and rediscoveries of species thought to have been lost. Biodiversity Action Plans have also benefited targeted species, but habitat restoration and management for some is not always good for others. But there are worrying trends in declining populations, with an increasing number being regarded as threatened or endangered, especially in agricultural areas, and where woodland management has changed, particular threats from introduced species, and concern over the effects of climate change. Some of the smaller organisms remain poorly known, a situation unlikely to change as expertise in many is scant or being lost. This stock-check and look to the future will be a key source book to conservationists, naturalists, and professional biologists for many years to come.
This is a history of the moorlands and the part they have played in English and Welsh history over ten millennia. Ian Simmons combines the perspectives of natural science, archaeology, social history and historical geography, and draws on forty years of exploring and studying the moorlands. Starting with a description of their origins and how they have changed under the impact of human and natural forces, Simmons shows how perceptions of the moors have been influenced by writers, artists and the media (and how they have been inspired by the moors), and how these perceptions have resulted in great changes in attitudes to moorland use and management. The book begins by offering some concise understanding of the physical and natural characteristics of moorlands. It then gives an account of how hunter-gatherers of the Mesolithic period altered their surroundings using fire. It describes how millennia of agricultural production wrought distinctive moorland landscapes and how these in turn were affected and sometimes transformed by industrialisation, afforestation and changes in farming methods. The renewed impetus in the twentieth century for environmental management and conservation brings the story near to the present. The North Pennines, Dartmoor and South Wales are the subject of detailed accounts that reveal the common characteristics of the moorlands as well as their marked contrasts. Beyond the recent crises of overgrazing and the 2001 foot and mouth outbreak, Ian Simmons lays out some possible futures for the moors.
Professor John Harper, in his recent Population Biology of Plants (1977), made a comment and asked a question which effectively states the theme of this book. Noting that 'one of the consequences of the development of the theory of vegetational climax has been to guide the observer's mind forwards', i. e. that 'vegetation is interpreted as a stage on the way to something' , he commented that 'it might be more healthy and scientifically more sound to look more often backwards and search for the explanation of the present in the past, to explain systems in relation to their history rather than their goal'. He went on to contrast the 'disaster theory' of plant succession, which holds that communities are a response to the effects of past disasters, with the 'climax theory', that they are stages in the approach to a climax state, and then asked 'do we account most completely for the characteristics of a population by a knowledge of its history or of its destiny?' Had this question been put to R. S. Adamson, E. J. Salisbury, A. G. Tansley or A. S. Watt, who are amongst the giants of the first forty years of woodland ecology in Britain, their answer would surely have been that understanding lies in a knowledge of destiny. Whilst not unaware of the historical facts of British woodlands, they were preoccupied with ideas of natural succession and climax, and tended to interpret their observations in these terms.
Commercial pressures and mechanization have rendered almost unrecognizable the natural and man-made landscapes of Britain as they existed before World War I. How this happened and how we can best conserve what is left is charted using the perspective of aerial photography in this book.
Bioengineering offers many opportunities for forestry. Bioengineered trees can produce more valuable wood, help reclaim contaminated land, improve the health of urban trees, and facilitate pest management. But the ecological risks are complex, and public views about the ethical acceptability of genetic engineering vary widely. Unique in its breadth and diversity, The Bioengineered Forest begins with a survey of the range of forestry practices for which the use of biotechnologies might be appropriate. Scholars representing diverse academic perspectives and viewpoints examine in depth the economic and environmental rationale for forest biotechnologies and the current state of technology with respect to gene performance and safety. They consider the contemporary political and economic environment in which bioengineering is being introduced and where the 'genomic revolution' might take forestry and genetic engineering in the future. The Bioengineered Forest presents compelling arguments in favor of genetic engineering. Just as powerfully, it examines the significant technical and legal hurdles involved in genetic engineering, the undesirable environmental and social consequences that might result from its misapplication, and the risks for businesses that are looking too exclusively for near-term benefits.
This book takes a fresh look at the most disliked tree in Britain and Ireland, explaining the reasons it was introduced and why it became ubiquitous in the archipelagos of northwest Europe. Sitka spruce has contributed to the Pacific Coast landscapes of North America for over ten millennia. For the Tlingit First Nation it is the most important tree in terms of spiritual relationships, art, and products in daily use such as canoes, containers, fish-traps and sweet cakes. Since the late nineteenth century it has also been the most important tree to the timber industry of west coast North America. The historical background to the modern use of Sitka spruce is explored. The lack of cultural reference may explain negative public response when treeless uplands in the UK and Ireland were afforested with introduced conifer species, particularly Sitka spruce, following two World Wars. The multipurpose forestry of today recognizes that Sitka spruce is the most important tree to the timber industry and to a public which uses its many products but fails to recognize the link between growing trees and bought goods. The apparently featureless and wildlife-less Sitka spruce plantations in UK uplands are gradually developing recognizable ecological features. Sitka spruce has the potential to form temperate rain forests this century as well as to produce much-needed goods for society. The major contribution of Sitka spruce to landscapes and livelihoods in western North America is, by contrast, widely accepted. But conserving natural, old-growth forests, sustaining the needs of First Nations, and producing materials for the modern timber industry will be an intricate task.
This 2nd and fully revised edition offers insights into the campaign for countryside access and protection and considers topical concerns afresh. It examines unwelcome choices for the future and Britain's role in the global conservation debate.