Assessing Recent Soil Erosion Rates Through the Use of Beryllium-7 (Be-7).

• Author: Mabit, Lionel.
• TeilnehmendeR: Blake, William.
• Place / Publishing House: Cham : : Springer International Publishing AG,, 2019.; ©2019.
• Year of Publication: 2019
• Edition: 1st ed.
• Language: English
• Physical Description: 1 online resource (72 pages)

Table of Contents

Intro -- Preface -- Contents -- 1 The Use of Be-7 as a Soil and Sediment Tracer -- 1.1 Origin and Agro-Environmental Behaviour of 7Be -- 1.1.1 Atmospheric Production of 7Be -- 1.1.2 7Be Fallout -- 1.1.3 7Be Sorption Behaviour in Soils and Sediments -- 1.2 The Use of 7Be as a Soil Redistribution Tracer -- 1.3 Examples of the Application of 7Be as a Soil Redistribution Tracer -- 1.4 The Requirement for a Standardised Approach -- Appendix 1.1: The Profile Distribution Model -- References -- 2 How to Design a Be-7 Based Soil Distribution Study at the Field Scale: A Step-by-Step Approach -- 2.1 Key Sample Sets and Associated Data -- 2.2 Reference Site Selection and Sampling -- 2.3 Sample Design Options for Soil Redistribution -- 2.4 Sampling for Particle Size Selectivity Correction -- 2.5 Summary: Designing a Basic Small Scale 7Be Pilot Study Sampling Programme at the Plot Scale -- Appendix 2.1: Protocol for Extraction of 7Be from Rainwater -- References -- 3 Measurement of Be-7 in Environmental Materials -- 3.1 Overview of Digital Gamma Spectrometry Systems -- 3.2 Preparation of Samples -- 3.2.1 Sample Management -- 3.2.2 Soil Samples -- 3.2.3 Samples of Rainwater -- 3.2.4 Sample Geometry -- 3.3 Calibration Approaches -- 3.3.1 Semi-empirical Calibration Method -- 3.3.2 Monte Carlo Approach -- 3.4 Data Handling and 7Be Analysis -- 3.4.1 Quality Assurance -- Appendix 3.1: Soil Sample Preparation Prior to Gamma Analysis -- Appendix 3.2: Preparation of a Secondary Soil Calibration Standard -- References -- 4 Conversion of Be-7 Activity Concentrations into Soil and Sediment Redistribution Amounts -- 4.1 Implementing the Event-Scale Profile Distribution Model -- 4.2 Accounting for Size Selectivity of Erosion and Deposition Processes in the Profile Distribution Model -- 4.3 Extended Time Series Conversion Model: The Theory.

4.4 Implementing the Extended Time Series Model -- 4.5 Hillslope Sediment Budget Examples and Inclusion of Uncertainty -- References -- 5 Research into Practice-Linking Be-7 Evidence to Land Management Policy Change for Improved Food Security -- 5.1 The Importance of the Short-Term Perspective for Land Management Policy Makers -- 5.2 Linking Nuclear Techniques in Soil Erosion and Conservation to Policy Change -- 5.3 Example Impact Case Study: Support Provided by The 7Be Technique to Shape Soil Conservation Policy in Morocco -- 5.3.1 Soil Erosion and Conservation Policy Challenges in Morocco -- 5.3.2 From the Laboratory to the Field: The Approach -- 5.3.3 Key Findings and Policy Impacts from 7Be Application in Morocco -- 5.4 Future Trends and Opportunities in Using 7Be -- References.