共 10 条
- [1] GOUGH LP, 1988, ELEMENT CONCENTRATIO
- [2] KOVDA BA, 1960, PHYSICAL CONDITIONS
- [3] SHACKLETTE H, 1984, USGS1270 PROF PAP
- [4] WEN S, 1965, SOIL GEOGRAPHY XINJI
- [5] WU XM, 1986, CHINESE J ENV SCI, V5
- [6] 1978, SOILS CHINA
- [7] 1961, SOILS N CHINA PLAINS
- [8] 1980, SOILS NE CHINA
- [9] 1959, SOIL GEOGRAPHICAL DI
- [10] 1982, NATURAL BACKGROUND D