TAILIEUCHUNG - VOLCANIC ASH SOILS GENESIS, PROPERTIES AND UTILIZATION

Volcanic eruptions are awesome and destructive; however, this natural phenomenon is beneficial in the long term. One of the earliest known written records of a natural disaster concerned the eruption of Pompeii in . 79, and was recorded by Pliny the Younger in his letters to the historian Tacitus (Jashemski, 1979). Volcanic eruptions, ranging in intensity and numbering between 17 and 27 per year during the past decade (Bullard, 1984), continue to remind us of their potential impacts on the environment. Violent volcanic eruptions range from complete obliteration of the landscape near the volcano, to a mere dusting of tephra at great distances. The most obvious effect is. | s. SHOJI M. NANZYO AND . DAHLGREN VOLCANIC ASH SOILS GENESIS PROPERTIES AND UTILIZATION DEVELOPMENTS IN SOIL SCIENCE 21 Developments in Soil Science 21 VOLCANIC ASH SOILS GENESIS PROPERTIES AND UTILIZATION Further Titles in this Series . VALETON BAUXITES 2. IAHR FUNDAMENTALS OF TRANSPORT PHENOMENA IN POROUS MEDIA 3. . ALLISON SOIL ORGANIC MATTER AND ITS ROLE IN CROP PRODUCTION 4. . SIMONSON Editor NON AGRICULTURAL APPLICATIONS OF SOIL SURVEYS 5A. . BOLT and . BRUGGENWERT Editors SOIL CHEMISTRY. A. BASIC ELEMENTS 5B. . BOLT Editor SOIL CHEMISTRY. B. PHYSICO-CHEMICAL MODELS 6. . DREGNE SOILS OF ARID REGIONS 7. H. AUBERT and M. PINTA TRACE ELEMENTS IN SOILS 8. M. SCHNITZER and . KHAN Editors SOIL ORGANIC MATTER 9. . THENG FORMATION AND PROPERTIES OF CLAY-POLYMER COMPLEXES 10. D. ZACHAR SOIL EROSION Il A. . WILDING . SMECK and . HALL Editors PEDOGENESIS AND SOIL TAXONOMY. I. CONCEPTS AND INTERACTIONS I IB. . WILDING . . HALL Editors PEDOGENESIS AND SOIL TAXONOMY. II. THE SOIL ORDERS 12. . BISDOM and J. DUCLOUX Editors SUBMICROSCOPIC STUDIES OF SOILS 13. p. KOOREVAAR G. MENELIKand c. DIRKSEN ELEMENTS OF SOIL PHYSICS 14. . CAMPBELL SOIL PHYSICS WITH BASIC-TRANSPORT MODELS FOR SOIL-PLANT SYSTEMS 15. . MULDERS REMOTE SENSING IN SOIL SCIENCE 16. LB. CAMPBELL and . CLARIDGE ANTARCTICA SOILS WEATHERING PROCESSES AND ENVIRONMENT 17. K. KUMADA CHEMISTRY OF SOIL ORGANIC MATTER 18. V. VANCURAandF. KUNC Editors INTERRELATIONSHIPS BETWEEN MICROORGANISMS AND PLANTS IN SOIL 19. . DOUGLAS Editor . SOIL MICROMORPHOLOGY A BASIC AND APPLIED SCIENCE 20. . SCHARPENSEEL M. SCHOMAKER and A. AYOUB Editors SOILS ON A WARMER .

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