【题名】：Composition of Sulphur Pool in Selected Upland Soils in North China土壤圈：英文版论文(Composition of Sulphur Pool in Selected Upland Soils in North ChinaTuRangQuan：YingWenBanLunWen)
【关键词】：中国 北方地区 高地土壤 土壤成分 C结合S C－O－S 硫酸盐 硫库
【keywords】：ZhongGuo BeiFangDiQu GaoDiTuRang TuRangChengFen CJieHeS C－O－S LiuSuanYan LiuKu
【作者】：ZHOUWEI,LINBAO,等 【来源】： 知识词典
【期刊名称】：土壤圈：英文版(TuRangQuan：YingWenBan)
【国际标准刊号】：1002-0160 【国内统一刊号】：32-1315
【作者单位】：[1]InstituteofSoilandFertilizer,ChineseAcademyofAgriculturalSciences,Beijing,100081，China [2]InstituteofSo([1]InstituteofSoilandFertilizer,ChineseAcademyofAgriculturalSciences,Beijing,100081，China [2]InstituteofSo)
【分类号】：S153.61 S159.2 【页码】：-123-130 【出版年】：1999.2
Soil sulfur fractions,including monocalcium phosphate-extractable S,slowly soluble inorganic S,C-O-S,C-bonded S and unidentified organic S,were analyzed for 48 soils,as representatives of 6 major groups of upland soils,fluvisol,cinnamon soil,loessial soil,chestnut soil,black soil and brown soil,in North china,The contents of total S and monocalcium phosphate-extractalble S in the above 48 soils ranged from 234 to 860 and 5.1to 220.3mg kg^-1,respectively and each of 6 soil groups contained the samples with a low level of phosphate-extractable S.Great differences in the average contents of each fraction of S were observed among the above 6 soil groups.Expressed as average percentage of the total S in soils,fluvisols,cinnamon soils,loessial soils,chestnut soils,black soils and brown soils contained 6.1%,9.5%,5.7%,13.2%,3.5%and 6.8% monocalcium phosphate-extractable S,5.7%,3.0%,9.3%,10.4%,3.2%and 3.1% slowly soluble inorganic S,51.6%,26.7%,17.4%,31.2%,28.9%and 22.7% C-O-S,11.0%,9.1%,6.6%,6.8%,9.7%and 9.4% in C-bonded S,and 25.6%,51.7%,60.8%,38.4%,54.7%and 53.0% unidentifed organic S,respectively,FOr the above 6 groups of soils,the mean C/N ratios were remarkably similar,ranging from 9.7 to 10.7,while the mean N/S ratios ranged from 1.16 to 3.12,The highest ratios of C/N,C/C-O-S and C/C-bonded S were found in black soils.averaging 30.4,104.9and 314.7,respectively,while the lowest ratios arose in chestnut soil,averaging 12.4,39.7 and 183.3,respectively.
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