Sand dunes : conservation, types and desertification / Jessica A. Murphy, editor.

Format:

Book

Contributor:

Murphy, Jessica A.

Series:

Earth sciences in the 21st century series.

Earth sciences in the 21st century

Language:

English

Subjects (All):

Sand dune conservation.

Sand dune ecology.

Desertification.

Physical Description:

1 online resource (163 p.)

Edition:

1st ed.

Place of Publication:

New York : Nova Science Publishers, c2011.

Language Note:

English

Summary:

Presents research in the study of the conservation, types and desertification of sand dunes. This book discusses topics that include the aridisation, dune dissipation and pedogenesis in the Quarternary of Eastern Pampean sand sea; desert sand dunes for sulfur concrete production; the causes, impacts and control of desertification; and, more.

Contents:

Intro

SAND DUNES: CONSERVATION, TYPES AND DESERTIFICATION

CONTENTS

PREFACE

ARIDIZATION, DUNE DISSIPATION AND PEDOGENESIS IN THE QUATERNARY OF EASTERN PAMPEAN SAND SEA

ABSTRACT

1. INTRODUCTION

2. LOCATION AND DIMENSIONS

3. METHODOLOGY

Climatic Scenarios

Present Climate

4. THE PAMPEAN AEOLIAN SYSTEM

5. LOCAL PROCESSES

5.1. Types of Megadunes

5.2. Grain Size of the Sediments - The Sand/Silt Limit in Wind Transport

5.3. Salt Weathering

5.4. Dune Dissipation

5.5. Pedogenesis/Multisols

5.6. Carbonate and Iron Mobilization

5.7. Hydrographic Characteristics

6. SEQUENCE OF EVENTS

7. THE EASTERN REGION OF THE PAMPEAN SAND SEA

7.1. Local Area Teodelina

Quaternary Stratigraphy

7.2. Local Area Canals

Stratigraphy

7.3. Transition with the Peripheric Loess Belt

8. ANALOGIES WITH THE PRESENT CLIMATE

CONCLUSIONS

REFERENCES

DESERT SAND DUNES FOR A SUSTAINABLE SULFUR CONCRETE PRODUCTION IN ARID LANDS

1.1. Terminology

1.2. Development of Sulfur Concrete

1.3. Sulfur Concrete Composition

1.3.1. Sulfur

1.3.2. Chemical Additives

1.3.3. Mineral Fillers

1.3.4. Aggregates

2. BITUMEN MODIFIED SULFUR CONCRETE (BMSC)

2.1. Production of BMSC

2.2. Effect of Sulfur Ratio and Loading

2.3. Microstructure Characterization

2.4. Strength Development

2.5. Thermal Stability

2.6. Durability

2.6.1. Short - Term Hydro-Mechanical Behavior

(i) Moisture Absorption

(ii) Compressive Strength Development in Acidic Environment

(iii) Compressive Strength Development in Saline Environment

(iv) Hydraulic Conductivity

2.6.2. Long-Term Hydro-Mechanical Behavior

2.7. Potential Ecological Effects of BMSC

CONCLUSION

REFERENCES.

SPIDER AS A MODEL TOWARDS THE CONSERVATION OF COASTAL SAND DUNES IN URUGUAY

INTRODUCTION

THE URUGUAYAN COASTLINE

BURROW DIGGING IN THE SAND DUNES

Sex Role Reversal in a Wolf Spider Inhabitant of Coastal Sand Dunes

To Eat a Relative or Not to Eat

Human Impact

Vagility and Distribution along the Sand Dunes

The White Spider of the Sand Dunes as a Bio-Indicator

CONCLUSIONS AND FUTURE PERSPECTIVES

BIBLIOGRAPHY

OCCURENCE OF ACTINOMYCETES AND MYCORRHIZAE ASSOCIATED WITH NATURAL AND RECONSTRUCTED SAND DUNE VEGETATION ZONES DISTURBED BY PREVIOUS SAND-MINING OPERATIONS ON AUSTRALIA'S FRASER ISLAND

FRASER ISLAND SAND DUNES

SAND MINING ON THE ISLAND AND REHABILITATION EFFORTS

ROLE OF MICROORGANISMS IN THE SUCCESS OF REVEGETATION OF SAND DUNES AND FRASER ISLAND FINDINGS

CONCLUSIONS AND FUTURE PROSPECTS FOR DUNE STABILISATION

ACKNOWLEDGMENT

THE SAND DUNE SYSTEMS IN THE NORTHERN COAST OF SENEGAL: ORIGIN, CHARACTERISTICS, ECONOMIC AND ENVIRONMENTAL IMPACTS

2. ORIGIN AND MORPHOSEDIMENTARY CHARACTERISTICS OF DUNES OF SENEGAL WEST

2.1. Ancient Erg

2.2. The Ogolian Sand Dunes

2.3. Barrier Beaches

3. QUATERNARY AND RECENT ENVIRONMENTAL CHANGES OF SENEGALESE NORTH ATLANTIC COASTAL DUNES

3. 1. Implementation of Hydrological and Hydrogeological Conditions

3.2. Vegetation Settlement

3.3. Pedogenesis

4. DEGRADATION OF DUNE ENVIRONMENTS

4.1. Deforestation of Marshes

4.2. Deforestation of Dunes

4.3. Reactivation of the Dunes by Winds

CAUSES, IMPACTS, EXTENT, AND CONTROL OF DESERTIFICATION

2. CAUSES OF DESERTIFICATION

2.1. Environmental Conditions

2.1.1. Arid climate

2.1.2. Sand Erosion and Deposition

2.1.3. Resalinization of Agricultural Lands.

2.1.4. Reduction in Soil Moisture

2.2. Human Activities

2.2.1. Unsustainable Agricultural Practices

2.2.2. Unsustainable Water Management Practices

2.2.3. Overgrazing

2.2.4. Deforestation

2.2.5. Increase in Atmospheric Dust

3. IMPACTS OF DESERTIFICATION

3.1. Environmental Impacts

3.2. Economic Impacts

3.3. Poverty and Mass Migration

4. EXTENT OF DESERTIFICATION

4.1. Africa

4.2. Asia

4.3. Latin America and the Caribbean

4.4. Other Regions and Countries Affected by Desertification

5. CONTROLLING DESERTIFICATION

5.1. Restore and Fertilize the Land

5.2. Combat the Effects of the Wind

5.3. Reforestation

5.4. Develop Sustainable Agricultural Practices

5.5. Traditional Lifestyles

INDEX.

Notes:

Description based upon print version of record.

Includes bibliographical references and index.

Description based on print version record.

ISBN:

1-62257-027-8

OCLC:

839304862