Includes bibliographical references.

Cover -- Title page -- Copyright page -- Contents -- Foreword -- Acknowledgements -- Chapter 1 -- Land and Water Resources for Improved Food Security and Ecosystem Services in Africa -- 1.1 Introduction -- 1.2 Chapters in the book -- 1.3 Conclusion -- References -- Chapter 2 -- Natural Resource Conservation in Ghana: an Economic Assessment of Lake Bosomtwi -- 2.1 Introduction -- 2.1.1 Objective and policy relevance -- 2.1.2 Conservation efforts in Ghana -- 2.1.3 The economic justification for conservation -- 2.1.4 Lake Bosomtwi -- 2.1.5 Conservation and total economic value -- 2.1.6 The Model

2.2 Methodology -- 2.2.1 The sample -- 2.2.2 The CVM study -- 2.2.3 Benefit estimation and analysis -- 2.3. Results and Discussion -- 2.4. Conclusion and Recommendation -- References -- Chapter 3 -- Towards Sustainable Management of Ethiopia's Lake Chamo Biodiversity Resources: a Geo-spatial Supported Approach -- 3.1 Introduction -- 3.1.1 Objectives -- 3.2. Methodology -- 3.2.1 The study area -- 3.2.2 Methods -- 3.3 Results and Discussion -- 3.3.1 Time series analysis of Lake Chamo level changes, causes and environmental implications -- 3.3.2 Threats of lake-wetland ecosystem

3.4. Conclusion and Recommendations -- References -- Chapter 4 -- Review of Carbon Sequestration under some Agricultural Water Management Practices -- 4.1 Introduction -- 4.2. Materials and Methods -- 4.3. Results and Discussion -- 4.3.1 Rates of soil carbon sequestration by water management practices -- 4.3.2 Greenhouse gas mitigation potential of the studied water management practices -- 4.4 Conclusion -- References -- Chapter 5 -- An Assessment of the Quality of Natural Spring Water Used as Alternative Domestic Water Sources in Ibadan, Nigeria -- 5.1 Introduction -- 5.2. Data and Methods

5.2.1 The study area -- 5.2.2 Study Parametres and Methods -- 5.2.3 Inferential data analysis -- 5.3. Results -- 5.3.1 Physical environment of natural springs -- 5.3.2 Physiognomy Characteristics -- 5.3.3 Bacteriological Characteristics -- 5.3.4 Chemical Characteristics -- 5.3.5 Statistical inferences on difference in quality of spring water and the WHO standards for drinking water -- 5.4. Discussion -- 5.5 Conclusion -- Acknowledgements -- References -- Chapter 6 -- Combined Constructed Wetlands and Stabilisation Ponds- a Key Ecotechnology for Treating Africa's Wastewater -- 6.1 Introduction

6.1.1 Natural wastewater treatment systems -- 6.1.1.1 Abundant sunshine and optimal temperature conditions -- 6.1.1.2 Highly diverse macrophyte, microbial and invertebrate communities -- 6.1.1.3 Cheap labour and land with suitable topography -- 6.1.1.4 Treatment efficiencies of natural wastewater treatment systems -- 6.2. Waste stabilisation ponds (WSPs) and constructed wetlands (CWs) compared -- 6.2.1 Benefits of Combined WSPs and CWs -- 6.2.1.1 Example 1: Bangladesh -- 6.2.1.2 Example 2: China -- 6.2.1.3 Example 3: Malaysia -- 6.2.1.4 Preliminary results: Ghana