Spatial Distribution Characteristics Of Character Available Microelement Contents In Salinized Soil Of Tumochuan Plain

This article selects the Mongolia agricultural university ‘s Hailiu park-area which islocated in the central plains of Inner Mongolia TuMoChuan as the research area. Usingstatistical methods, soil pH, salt, reaction degree and trace elements of spatialheterogeneity was studied, the results are as follows:1. Among the3piece of samples, the mean value of soil total salt content is2.29g/kg,2.14g/kg,1.88g/kg, with medium variability.The average of pH is8.57,9.00,9.22,which means weak variability. And the average of Alkalization is19.49%,26.23%,34.64%, which means moderate variability.2. The effective content of trace elements Fe, Zn, Mo grade of the research area is atmedium or low levels, and elements Mn, Cu, B is in middle or high level. Research area'seffective trace elements Fe, Zn, Mo are under the critical value, in comparison, is lacking.However effective content of Cu stands in the critical value.3. In the3piece of sample areas, soil total salt has medium spatial correlation. SoilpH in mild and severe salinization soil is medium spatial correlation, in medium severesalinization soil is weak spatial correlation. Spatial correlation of soil alkalization degrees,is weak in mild alkaline soil, is stronger in moderate alkaline soil, and is moderate insevere salinization soil. The effective content of trace elements Zn, Mo have moderatespatial correlation, and Fe, Mn, Cu, B have different spatial correlation degrees indifferent degree of salinization, from weak to moderate, in to the strong spatialcorrelation also existed.4. The properties of soil salinization, the variation of soil total salt is42.14m, exceptthe mild salinization soil is12.3m. The effective iron variation in3piece of sample, is42.14m. In mild salinization of soil, six kinds of trace elements variation order from bigto small is Zn> Mn> Cu> Fe=B> Mo, in moderate salinization degree is Fe=Cu=B> Mo> Zn> Mn, in severe salinization is Zn> Fe=Cu=Mo> B> Mn.5. The distribution of soil effective state of Fe, Mn, Cu, Zn, B presents a relativelyconsistent rule, its content distribution of high value area and low-value area arecorresponding. However, the distribution of the effective state of Mo is contrary to theabove five, but is similar to the distribution of the properties of soil salinization.