Relationship of Heavy Metals and Soil N, P, K and Total Salts in Tianshan Mountains, Central Asia

Abstract

Use Anomaly analysis, Correlation analysis and Grey relational analysis to analyze the relationship and the occurrence characters of the soil environment in the Tianshan Mountains. The results reveals that the ranking order of the heavy metal concentrations were: Co > As > Mn > Zn > Cr > Cd > Hg > Cu > Ni > Pb. The ranking order of different vegetation types were: farmland > bare land > forest > grassland while grey correction analysis showed the associated sequence of the heavy metals with soil N, P, K and total salt were as the following order: Total salts > K > P > N. Analysis showed economic activities has put an important role on soil environment and cause the high heavy metal concentrations in many region. The users should pay much attention to the changing of the soil indicators of the soil in Tianshan mountains.