ZHAO Chuan-chuan, SONG Rui-ze, MENG Han-long, et al. Spatial Variability and Its Effectiveness of Trace Elements in Soil of Loess Hilly Region of Qinghai Province[J]. Bulletin of Soiland Water Conservation, 2014, 33(6): 109-112.
ZHAO Chuan-chuan, SONG Rui-ze, MENG Han-long, et al. Spatial Variability and Its Effectiveness of Trace Elements in Soil of Loess Hilly Region of Qinghai Province[J]. Bulletin of Soiland Water Conservation, 2014, 33(6): 109-112. DOI: 10.13961/j.cnki.stbctb.2014.06.027.
The spatial distribution and dynamic change of main trace elements in soil were studied in the loess hilly region of Qinghai Province. The result showed that the effective trace elements Fe
Cu
Zn
B had higher variability
Mn had higher or moderate variability. In view of soil series
the effective state of trace elements in the Dark Cinnamon and the Chernozem reached the rich level(high level)
while that in the irrigated soil was far below the threshold. From the view of the soil stratification
the coefficient of variation changed little. In the shrubbery forest lands
soil trace elements were lacking relatively expect available B which just reached to the rich level. However all the trace elements reached the high levels in the mix forest lands.
Cao Zhihong, Zhang Hongcheng. Phosphorus losses to water from lowland rice fields under rice-wheat double cropping system in the Tai Lake region[J]. Environmental Geochemistry and Health, 2004,26(2):229-236.