,

Vol. 32 Supplement

1995 6 ACTA PEDOLOGICA SINICA J u n e . 1995

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- 1 1 Boris Volkoff (ORSTOM) ,Chen Zhichrog,Gong Zitong and Zhang Taoii (ISSAS). 1994.Soils of S u t h

East China, Transect studies and Development of classification criteria.

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S 1 SiOJA1203 5!rSS%P%MR&3XZ' Tabfe 1 The relationship between SiO2/Al2O3 molecular ratio and

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China .Transect studies and Development of classification criteria.

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CEC, (B horizon >

- 1 1 Boris Volkoff (ORSTOM) .Chen 2hicheng.Gong Zitong and Zhang Taolin (ISSAS). 1994.Soils of Sot

EÊS! China .Transect studies and Development of Classification cri:e+..

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"IY -#i€& B . P 179 - 182. #+ ~ Ekk e

F.?ir');Unesco.:97~:Soil Map of World.1 : 5000.000,Vol. 1.1,egend.Paris.

F.JIO,Unesco.l9SY:So1l Map of Thc World. Revised Iegend.Rome.

G. Pedro. l979 :The conditions of formarion o! secondary consziwenrs. In Constituents and Properties of Soils,

edite¿ by M. Bonnezu and 8. S0uchier.p. 63-81 .Academic Press.London (ir. English).

ISSS.ISF¿IC.F..\O,1994: W d d Reference Base for Soil Resources (Drafr) ,Compiled and edired by O. C. Spaar-

gren. Wageu¡ngen/Rome.

Shi Hu2 ,Gong Zi-tong and Chen Hong-shao. 1995:Genecic characteristics of the soils in China. Soil Research Re-

port No. 13,Institute of Soil Science.Academia Sica.Nanjmg.Ciina.

Soil Survey Staff, 1975 :Soi Taxonomy.U. S. Dep. Agriculture Handbood No. 436. Washington.DC.

Soil Survey Staff.1994:Keys to Soi Taxonomy. U. S. Dep. Agricdture,SCS,suth edition,Washington,D.C..

SOME CHARACTERISTICS AND TAXONOMIC CLASSIFICATION OF FERRALLITIC SOILS

IN EASTERN PART OF TROPICAL AND SUBTROPOICAL ZONE OF CHINA

Chen Zhicheng Gong Zitong Zhao Wenjun Zhang Taolin Boris Volkoff

(Institute of Soil Science, Academia Sinica, (ORSTOM 9

. Nanjing, 21 0008) France) '

In the present paper some charateristics of seventy ferrallitic soil profiles in three selected soil transects located in the eastern part of tropical and subtropical zones of Chi- na are discussed,and the taxonomic classification of the soils is made according to the

diferences of diagnostic horizons and/or diagnostic characteristics, which are connected with soil-forming processes. All these soils studied are classified into four orders :Ferrai- isols . Ferrisols, Luvisols and Cambisols , and their subdivisions into suborders ? groups a n d subgroups are aiso proposed.

Key words ferrallitic soil characteristics, taxonomic classification