GEOGRAPHIC DISTRIBUTION OF THE IMPORTANT SOILS OF CHINA

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Soils of China are subdivided,on the basis of morphological andchemical characteristics,into various broad groups which are correlated withthe similar types in Europe,America and various tropical regions. Pedalfers include 1. Strongly podzolized soils 2. Ground water podzols 3. Brown forest(?) soils 4. Gray-brown forest soils 5. Gray-brown forest claypans 6. Gray-brown forest soils of Szechuan Basin 7. Podzolized red earths 8. Older red earths with lateritic parent materials 9. Non-calcareous (?)oils of alluvial and lacustrine origin 10. Rice paddy podzolized soils. Pedocals include 1. Chernozem,mature and immature 2. Degraded chernozem 3. Chestnut earths,—both mature and immature dark and light chestnut earths 4. Gray desert soils and sand dunes 5. Calcareous soils of recent alluvial origin. Alkali soils include: 1. Solonetz-solonchak Complex 2. Saline soils of alluvial origin. A map shows the approximate distribution of the important types. The readet is reminded that the map is of a tentative nature in that itdoes not represent a complete knowledge of the soil geography of China.Borndaries between the various soil groups are subiect to change as moreinformation is accumulated. Soils of China are subdivided, on the basis of morphological andchemical characteristics, into various broad groups which are correlated with these similar types in Europe, America and various tropical regions. Pedalfers include 1. Strongly podzolized soils 2. Ground water podzols 3. Brown forest ( ?) soils 4. Gray-brown forest soils 5. Gray-brown forest claypans 6. Gray-brown forest soils of Szechuan Basin 7. Podzolized red earths 8. Older red earths with lateritic parent materials 9. Non-calcareous (?) oils of alluvial and lacustrine origin 10. Rice paddy podzolized soils. Pedocals include 1. Chernozem, mature and immature 2. Degraded chernozem 3. Chestnut earths, -both mature and immature dark and light chestnut earths 4. Gray desert soils and sand dunes 5. Alkali soils include: 1. Solonetz-solonchak Complex 2. Saline soils of alluvial origin. A map shows the approximate distribution of the important types. The readet is reminded that the map is of a tentative nature in that itdoes not represent a complete knowledge of the soil geography of China. Borndaries between the various soil groups are subiect to change as more information is accumulated.
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