Science : Earth Sciences

Focuses on the advances in gold plant operation, from conception to closure. This book covers all unit operations, mineralogies and processes that are relevant to dealing with complex orebodies. The principle behind the structure of it is that of flowsheeting based on unit operations and applied to a mineralogical classification of gold ore types. more...

Price: $260.00

Food insecurity is a central concern and a fundamental challenge for human welfare and economic growth in Africa. Low agricultural production, results in low incomes, poor nutrition, vulnerability to risks and lack of empowerment. Land degradation and soil fertility depletion are considered the major threats to food security and natural resource conservation in sub-Saharan Africa (SSA). Investments in technology, policy and institutional reforms are needed to increase agricultural productivity to ensure food security and sustained national economies. Past research has generated numerous soil fertility management technologies which if adopted could propel the African continent out of the poverty trap. However, these technologies have had little, if any, impact due to low adoption by the smallholder farmers. Africa needs to break the cycle between poverty and land degradation by employing strategies that empower farmers economically and promoting sustainable agricultural intensification using efficient, effective and affordable agricultural technologies. In addition, farmers and local entrepreneurs need to be linked to markets to increase their capacities to invest in sustainable land management. All these requirements need to be achieved through an integrated soil fertility management (ISFM) approach that is holistic and dynamic in order to foster both technical and institutional change. more...

Price: $269.00

This book reviews key developments in the field of marine science and technology and focuses on the long term issues - such as the disposal of industrial waste - that these developments raise. more...

Price: $250.00

This book considers the processes used for devising global environment and development agendas and provides practical suggestions for their future development and influence. more...

Price: $200.00

This new expanded edition, with an increased emphasis on systems, has been revised to reflect the current environmental and ethical issues concerning the use of grasslands. As such it addresses the need for a different approach, providing novel and provocative material to instruct, stimulate and enthuse the reader. more...

Price: $40.00