CN109444381A - Analysis method for vertical migration and transformation rules of elements in soil - Google Patents

Abstract

The invention relates to an analysis method for a vertical migration and transformation rule of elements in soil, which belongs to the field of environmental monitoring and specifically comprises the following steps: selecting the maximum value of sampling results of different depths of different elements of each sampling point as a normalization denominator, carrying out normalization processing on each element respectively, then calculating an arithmetic mean value of the same element of the same depth of each sampling point, on the basis, carrying out normalization processing by taking the maximum value in the depth as the denominator to serve as final basic data, and then putting the change rule on a graph for comparative analysis to find out the migration rule in the vertical direction of the element and the similarity of different elements. According to the method, the original data are processed by adopting a normalization method, so that the vertical migration rule of the elements and the similarities of different elements are reflected more visually, the time and the number of the pictures are greatly saved, and the similarity of the aggregation rule of the elements is more favorably found.

Description

A kind of analysis method of elements in Soil Vertical Migration transformation rule

Technical field

The invention belongs to environmental monitoring field, more particularly to a kind of analysis of elements in Soil Vertical Migration transformation rule Method.

Background technique

In recent years, land quality is increasingly taken seriously, Trace Elements in Soil, beneficial element, harmful element distribution, Content plays a crucial role our life and health.From earth's surface to underground two meters be crop growth master Depth bounds are wanted, the vertical characteristics of the range interior element and variation are also paid more and more attention.Currently, vertical for elements in Soil The work that variation is studied is less, and since the rank of element different is different, existing analysis is also individual element analysis, Statistics variations rule.It needs to take a substantial amount of time and be compared with graph.

Summary of the invention

The technical problem to be solved in the present invention is that providing a kind of analysis side of elements in Soil Vertical Migration transformation rule Different elements are respectively normalized in method, the method, and then changing rule is put on a figure and is compared point Analysis, with find element it is vertical on Transport and different elements similarity.

The invention adopts the following technical scheme:

A kind of analysis method of elements in Soil Vertical Migration transformation rule, the method are specific as follows:

1) vertical section sampling, sample point vertical spacing 20cm -30cm are carried out in sample point；

2) select the maximum value in the result of laboratory test of different depth sample point sample as denominator to the different members of each sample point Element is normalized respectively, and then same depth identity element calculates arithmetic average, on this basis, in depth Maximum value is normalized again as denominator, the basic data as this analysis；

3) draw multiple element enumerate together with change in depth content change diagram.

4) similarity rules of each element change in depth rule and different elements are found in comparative analysis.

The present invention compared with prior art the utility model has the advantages that

General element analysis, since element different is multifarious, is difficult to be plotted on a figure, can only individually draw Or drawn together similar in content rank, rule is with the naked eye found, spends the time long and is not easy to compare different elements Changing rule (Fig. 2~Fig. 6).After being normalized, change curve caused by content difference is eliminated not in a level, It more can intuitively reflect similarity rules (Fig. 1) of the element between the changing rule and different elements on vertical, while also simplify The content of figure and shared length in document.

Detailed description of the invention

Fig. 1 normalization after vertical section figure of changing-K, Ca, Fe, Mn, Zn, Cu, Mo, Pb, Ni, Co, V, Sr, As, Sb,F,pH；

The not normalized QT069 vertical section figure of changing-pH of Fig. 2, S, K, Fe, Ca, organic matter；

The not normalized QT069 vertical section figure of changing-Mn of Fig. 3；

The not normalized QT069 vertical section figure of changing-Zn of Fig. 4, Cu, Cr, Pb, Ni, Co, V；

The not normalized QT069 vertical section figure of changing-Sr of Fig. 5, B；

The not normalized QT069 vertical section figure of changing-Mo of Fig. 6, As, Sb.

Specific embodiment

Technical solution of the present invention is further explained below by embodiment combination attached drawing, but protection of the invention Range is not limited in any form by embodiment.

Embodiment 1

A kind of analysis method of elements in Soil Vertical Migration transformation rule, the method are specific as follows:

1) vertical section sampling, sample point vertical spacing 20cm -30cm are carried out in sample point.

2) select the maximum value in the result of laboratory test of different depth sample point sample as denominator to the different members of each sample point Element is normalized respectively, and then same depth identity element calculates arithmetic average, on this basis, then carries out normalizing Change processing, the basic data as this analysis；

3) draw multiple element enumerate together with change in depth content change diagram.

4) similarity rules of each element change in depth rule and different elements are found in comparative analysis.

This task has carried out vertical section sampling in QT069 and QT159, depth selection be respectively 20cm, 50cm, 70cm, 100cm, 130cm, 160cm and 200cm.Nearby thin solum type is saline moist soil to QT069 sample, and QT159 sample is attached Nearly thin solum type is sandstone area.Two sample point deep (130cm -200cm) soil types are cement moisture soil.Change Testing result, see Table 1 for details and table 2.To the maximum value of sample point difference element result of laboratory test using in depth at two as denominator respectively into Row normalized, i.e., different each depth results of laboratory test of element are by taking element sulphur as an example, the S1n that is respectively as follows: S11, S12 ..., choose Maximum value is as S1max, by S11, S12 ... S1n respectively divided by S1max, obtain the normalized result Sg11 of element sulphur, Sg12 ... Sg1n, other elements are similar to be normalized, and as a result see Table 3 for details and table 4, and then same depth identity element calculates Arithmetic average, still by taking element sulphur as an example, Se1=(Sg11+Sg12)/2, Se2=(Sg21+Sg22)/2 ... Sen=(Sg2n + Sg2n)/2, as a result see Table 5 for details, on this basis, be normalized again using the maximum value in depth as denominator, still with For element sulphur, maximum value is chosen from Se1, Se2 ... Sen as Semax, by Se1, Se2 ... Sen respectively divided by Semax obtains element sulphur finally normalized result Sg1, Sg2 ... Sgn, and other elements are similar to be normalized, as this The basic data (table 6) of secondary analysis.It is detailed in Fig. 1.If not being normalized, then needing Fig. 2~Fig. 6, totally 5 figures could be analyzed.

It can be seen from the figure that K, Ca, Fe, Mn, Zn, Cu, Mo, Pb, Ni, Co, V, Sr, As, Sb, F earth's surface to 70cm increase It is long, maximum value is reached, is reduced after 70cm, until 130cm nearby reaches minimum, slightly below earth's surface, continues to increase to deep.Chinese yam General 120~the 130cm in root bosom, analysis may be that Chinese yam growth early period and later period rhizome mushroom out the phase to the suction of these elements It receives more.

PH value is more steady, without significant change.Illustrate that Chinese yam growth course does not have an impact pH in soil substantially.

Claims (2)

1. a kind of analysis method of elements in Soil Vertical Migration transformation rule, it is characterised in that the method is specific as follows:

1) vertical section sampling is carried out in sample point；

2) select the maximum value in the result of laboratory test of different depth sample point sample as denominator to each sample point difference element point It is not normalized, then same depth identity element calculates arithmetic average, on this basis, with the maximum in depth Value is normalized again as denominator, the basic data as this analysis；

3) draw multiple element enumerate together with change in depth content change diagram；

4) similarity rules of each element change in depth rule and different elements are found in comparative analysis.

2. a kind of analysis method of elements in Soil Vertical Migration transformation rule according to claim 1, it is characterised in that Vertical spacing 20cm -30cm of the step 1) sample point.