دانلود کتاب Understanding wetlands : fen, bog, and marsh

"Understanding Wetlands explains how these unique habitats are created naturally and how they sustain themselves. It describes how the flora and fauna of wetlands are ideally adapted to their environment and how the ecosystem copes with pollutants and climatic change. The impact of human activity such as farming, building and recreation is also assessed. The book concludes with a look at the need for conservation." "This integrated and holistic account of wetlands is a valuable reference for students of ecology, biology and environmental science. Its beautiful illustrations and accessible style also make it ideal for the general reader interested in the natural world."--BOOK JACKET. Read more... Content: Introduction -- Wetlands matter -- How wetlands work -- In wetland wilds -- The animals -- The waters of the wetlands -- Chemical types and vegetation types -- The power to purify -- Phragmites: a study in plant behaviour and human use -- The silent battlefield: vegetation changes -- Threats and losses, past and present -- Conservation. Abstract: "Understanding Wetlands explains how these unique habitats are created naturally and how they sustain themselves. It describes how the flora and fauna of wetlands are ideally adapted to their environment and how the ecosystem copes with pollutants and climatic change. The impact of human activity such as farming, building and recreation is also assessed. The book concludes with a look at the need for conservation." "This integrated and holistic account of wetlands is a valuable reference for students of ecology, biology and environmental science. Its beautiful illustrations and accessible style also make it ideal for the general reader interested in the natural world."--BOOK JACKET