PREFACE
Prof. Zhao QiguoDirector of ISS ASChief of LMCP

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Formation and Evolution of Vertisols in Huaibei Plain
LIU LIANG-WUInstitute of Soil Science;Academia Sinica;P.O. Box 821;Nanjing

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Adsorption of Sulfate and Fluoride in Relation to Some Surface Chemical Properties of Oxisols
ZHANG GANG-YA;ZHANG XIAO-NIAN and YU TIAN-RENInstitute of Soil Science;A cademia Sinica;P. O. Box 821;Nanjing

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Relationship Between Iron Oxides and Surface Charge Characteristics in Soils
SHAO ZONG-CHEN and WANG WEI-JUNInstitute of Soil Science;A cademia Sinica;P. O. Box 821;Nanjing

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Effect of Specific Adsorption of Ions on Electrokinetic Properties of Variable Charge Soils
ZHANG HONG and ZHANG XIAO-NIANInstitute of Soil Science;Academia Sinica;and Laboratory of Material Cycling in Pedosphere;Academia Sinica;P.O. Box 821. Nanjing

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Effect of Anions on Adsorbability and Extractability of Lead Added in Soil
CHEN HUAI-MAN;ZHENG CHUN-RONG and SUN XIAO-HUALaboratory of Material Cycling in Pedosphere;’Institute of Soil Science;A cademia Sinica;P. O. Box 821;Nanjing

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Influence of Phosphate on Transformation and Plant Uptake of Cadmium in Cd-amended Soils
XIONG LI-MING and LU RU-KUNInstitute of Soil Science;A cademia Sinica;P.O. Box 821;Nanjing

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Secretion of Phy tosiderophore and Its Effects on Soil Fe Availability
SHI WEI-MING and LIU ZHI-YUInstitute of Soil Science;Academia Sinica.P. O. Box 821;Nanjing

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Role of Amorphous Manganese Oxide in Nitrogen Loss
LI LIANG- MO and WU QI-TUInstitute of Soil Science;Academia Sinica;P. O. Box 821;Nanjing

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INFORMATION FOR CONTRIBUTORS TO PEDOSPHERE

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