World Soil Erosion and Conservation

World Soil Erosion and Conservation

Author: David Pimentel

Publisher: Cambridge University Press

Published: 2009-03-19

Total Pages: 0

ISBN-13: 9780521104715

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Land degradation from soil erosion has been considered by many to be a problem of significant proportion, affecting some 30-50% of the earth's land surface. At the time of the first publication of this book in 1993, estimates indicated that 10-15 million hectares of land were being lost each year through erosion and salinisation from irrigation and that at such a rate of loss, topsoil reserves on most sloping lands would be depleted within two hundred years. Since humankind's dependency on the land for food is almost total, soil erosion represents a real threat to the security of our food supply. The need for the immediate conservation of the world's soil resources is therefore clear. As part of the response to this need, the International Union for the Conservation of Nature's Commission on Ecology convened a special working group to consider the problem of world soil erosion and to propose practical solutions for soil conservation. This important book presents the outcome of their work.


Only in Africa

Only in Africa

Author: Norman Owen-Smith

Publisher: Cambridge University Press

Published: 2021-10-07

Total Pages: 379

ISBN-13: 1108832598

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Demonstrates how Africa's physical features, savannas and abundant grazers enabled frugivorous apes to become savanna-living hunters.


Soils of South Africa

Soils of South Africa

Author: Martin Fey

Publisher: Cambridge University Press

Published: 2010-02-16

Total Pages: 289

ISBN-13: 1139495291

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Soils of South Africa is the first book in seventy years that provides a comprehensive account of South African soils. The book arranges more than seventy soil forms into fourteen groups and then provides, for each group: • maps showing their distribution and abundance throughout South Africa • descriptions of morphological, chemical and physical properties • a detailed account of classification and its correlation with international systems • a discussion of soil genesis which includes a review of relevant research papers • appraisal of soil quality from a land use perspective as well as for its ecological significance • illustrative examples of soil profiles with analytical data and accompanying interpretations. There is also a fascinating account of the special relationship that exists between South African animals and soil environments. Soils of South Africa should interest students and researchers in the earth, environmental and biological sciences, as well as environmental practitioners, farmers, foresters and civil engineers.


Vegetation of Southern Africa

Vegetation of Southern Africa

Author: R. M. Cowling

Publisher: Cambridge University Press

Published: 1997

Total Pages: 656

ISBN-13: 9780521548014

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Comprehensive illustrated guide to plant science and ecology of southern African vegetation.


The Dry Forests and Woodlands of Africa

The Dry Forests and Woodlands of Africa

Author: Emmanuel N. Chidumayo

Publisher: Routledge

Published: 2010-09-23

Total Pages: 294

ISBN-13: 1136531378

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The dry forests and woodlands of Sub-Saharan Africa are major ecosystems, with a broad range of strong economic and cultural incentives for keeping them intact. However, few people are aware of their importance, compared to tropical rainforests, despite them being home to more than half of the continent's population. This unique book brings together scientific knowledge on this topic from East, West, and Southern Africa and describes the relationships between forests, woodlands, people and their livelihoods. Dry forest is defined as vegetation dominated by woody plants, primarily trees, the canopy of which covers more than 10 per cent of the ground surface, occurring in climates with a dry season of three months or more. This broad definition - wider than those used by many authors - incorporates vegetation types commonly termed woodland, shrubland, thicket, savanna, wooded grassland, as well as dry forest in its strict sense. The book provides a comparative analysis of management experiences from the different geographic regions, emphasizing the need to balance the utilization of dry forests and woodland products between current and future human needs. Further, the book explores the techniques and strategies that can be deployed to improve the management of African dry forests and woodlands for the benefit of all, but more importantly, the communities that live off these vegetation formations. Thus, the book lays a foundation for improving the management of dry forests and woodlands for the wide range of products and services they provide.


Emerging Technologies and Management of Crop Stress Tolerance

Emerging Technologies and Management of Crop Stress Tolerance

Author: Parvaiz Ahmad

Publisher: Academic Press

Published: 2014-04-11

Total Pages: 586

ISBN-13: 0128010886

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Emerging Technologies and Management of Crop Stress Tolerance: Volume 1 - Biological Techniques presents the latest technologies used by scientists for improvement the crop production and explores the various roles of these technologies for the enhancement of crop productivity and inhibition of pathogenic bacteria that can cause disease. This resource provides a comprehensive review of how proteomics, genomics, transcriptomics, ionomics, and micromics are a pathway to improve plant stress tolerance to increase productivity and meet the agricultural needs of the growing human population. This valuable resource will help any scientist have a better understanding of environmental stresses to improve resource management within a world of limited resources. - Includes the most recent advances methods and applications of biotechnology to crop science - Discusses different techniques of genomics, proteomics, transcriptomics and nanotechnology - Promotes the prevention of potential diseases to inhibit bacteria postharvest quality of fruits and vegetable crops by advancing application and research - Presents a thorough account of research results and critical reviews