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Horizons in Earth Science Research - Volume 1 (Hardcover, New)
Loot Price: R6,879
Discovery Miles 68 790
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Horizons in Earth Science Research - Volume 1 (Hardcover, New)
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Total price: R6,899
Discovery Miles: 68 990
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Rangelands are confined to the tropic and sub-tropic regions, and
cover about 4.5 billion hectares of the world's dry lands or one
fifth of the earth's land surface. In spite of their hostile
environment, they are important biodiversity conservation
landscapes and support livelihoods of nearly 135 million people,
yet they are some of the most neglected and abused biomes. This
book examines the degradation of rangelands, and its potential
ecological and socio-economic implications. Also discussed are the
traditional management of dehesa systems, with a focus on the
problems and advantages of the livestock diversification which
characterise them. A brief description of the Surface Renewal (SR)
method and research is given, and performance observed for
estimating sensible heat, latent heat and C02 fluxes against the
more expensive EC measurements over grasslands are looked at as
well. This book also gives an overview of the widespread isotopic
techniques applied to study connectivity between streams and
groundwater; assumptions, advantages and drawbacks of the isotopic
methodologies are reported. In addition, human impact is arguably
the most important issue confronting mountain ecosystems today
across the world. This book outlines the trajectory of mountain
studies in anthropology, from early studies to the peak of mountain
anthropology in the 1980s, highlighting major theoretical and
research foci. Other chapters in this book review the current
threats to inland desert rangelands, ranging from groundwater
depletion, habitat fragmentation, exotic species introductions and
overgrazing. Recommendations on how to improve the state of
irrigated soils and to eliminate anthropogenic desertification are
also discussed.
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