CN105130650A - Solid mine waste planting mixed soil and preparation method thereof - Google Patents

Abstract

The invention discloses solid mine waste planting mixed soil and a preparation method thereof. The preparation method comprises the following steps that 1, solid mine waste and fine-grained soil are selected as ingredients, and physical and chemical analysis is performed; 2, proportion calculation is performed on the mixture by taking mass percent of grain size as an index; 3, the mixing proportion of the mixture is obtained; 4, 6-10 groups of the mixtures which meet the named requirements and initially selected are obtained by mixing coarse-grained soil with the fine-grained soil; 5, practical matching and water content correction are performed on the mixtures; 6, physical and chemical analysis is performed, and the theoretical preparation stage is completed. According to the preparation method of the planting mixed soil, the solid mine waste planting mixed soil can be formed by mixing the solid mine waste with the fine-grained soil according to a certain proportion, and the planting mixed soil has the ideal plant nutrition characteristics, is used for land improvement or reclamation and achieves the effective control effect on preventing the environmental problems such as mudstones, water and soil loss and environmental pollution.

Description

Mine Solid Wastes plantation composite soil and compound method thereof

Technical field

The present invention relates to the field such as mining geological environmental protection and restoration harness, land restoration in mining area and restoration of the ecosystem, be specifically related to the comprehensive utilization of Mine Solid Wastes and disposal, Mine Solid Wastes and plant composite soil and prepare and apply.

Background technology

Mine Solid Wastes refers to the solid waste produced in mining and ore dressing process, comprises mining and peels off the waste residue (stone) produced and the rubble that mountain skin is native, ore dressing produces and mine tailing etc.At present, the recycling of Mine Solid Wastes and disposal options mainly contain and reclaim useful component, produce material of construction, backfilling goaf, earthing build up fields.By these modes, although part Mine Solid Wastes can be consumed, but its comprehensive utilization ratio is still lower, except the comprehensive utilization ratio of coal gangue is close to except 70%, the comprehensive utilization ratio of other large Mine Solid Wastes is very low, the comprehensive utilization ratio of mine tailing is less than 20%, and the comprehensive utilization ratio of barren rock is almost nil.Therefore Mine Solid Wastes is accumulated in a large number, and related data shows: reach 508.68 × 10 by the end of whole nation Mine Solid Wastes accumulation in the end of the year 2012 volume of cargo in storage ⁸t.A large amount of Mine Solid Wastes is deposited in hillside or mountain valley, not only takies and destroys a large amount of soil, affecting Mine ecology, pollutes water and soil and atmospheric environment, and easily causes the geologic hazards such as landslide, rubble flow, threatens the safety of life and property of people.

Except comprehensive utilization ratio is not high, Mine Solid Wastes is disposed and is also had the following disadvantages or problem with utilization:

1. can be used for material of construction to produce, comprise and produce cement, building product, cast stone, devitrified glass, mineral wool, and the Mine Solid Wastes of processing rubble and light skeletal etc. is less, and the kind of producing material of construction is limited, can not consume in a large number and dispose Mine Solid Wastes.

2. the kind that can be used for the Mine Solid Wastes reclaiming useful component or energy is little, and mainly concentrate on mine tailing useful component at present and reclaim and coal gangue energy recovery two fields, the recycling of other chats useful components is then relatively less.In addition, after mining tailing useful component and coal gangue energy recovery, a large amount of surplus materialss is still had not utilize.Therefore, recovery useful component or energy can not consume Mine Solid Wastes in a large number.

3. the conventional practice that earthing is built up fields be mining (stone) field, solid waste heap (hereinafter referred to as slag muck) top or domatic on cover certain thickness soil (referring generally to fine grained soil) layer.There are 2 deficiencies in this way: one is that earthing is built up fields and needed a large amount of good soil (fine grained soil), and generally to lack fine grained soil former in mine, and therefore, earthing required native major part of building up fields will be transported outward, and earthing cost of building up fields is general higher; Another is that earthing is built up fields the soil formed, and special slag bank soil, easily soil erosion phenomenon occurs.

From logically, if Mine Solid Wastes is mixed by a certain percentage with fine grained soil and is made into artificial growth composite soil, not only can dispose a large amount of Mine Solid Wastes, save with soil (fine grained soil), and anti-soil erosion ability is stronger, not easily produce soil erosion phenomenon, be more conducive to Mine ecology Reparation and Reconstruction.

Summary of the invention

In view of above-mentioned present situation and analysis, the present invention aims to provide a kind of Mine Solid Wastes plantation composite soil and compound method thereof, and object has three: one to be the artificial growth composite soil utilizing Mine Solid Wastes and fine grained soil preparation to can be used for land restoration in mining area and restoration of the ecosystem; Two is produce this compound method that can provide the artificial growth composite soil of nutrition to plant-growth of preparation; Three be produce artificial growth mixing make with local methods with restoration of the ecosystem and reconstruction technique.Problem is recycled in order to solve Mine Solid Wastes.

Object of the present invention is mainly achieved through the following technical solutions: a kind of Mine Solid Wastes plantation composite soil compound method, and process is as follows:

1) first choose Mine Solid Wastes to be prepared, and fine grained soil is as batching;

Get batching soil sample to dry, analyze the physico-chemical property of each batching respectively, comprise the physical property index such as size composition, severe, water content, and the chemical index such as N, P, K, organic substance, heavy metal element;

2) with the mass percent of size composition for index carries out proportioning calculating to compound, carry out under the guidance of formula 1:

$X_i=\frac{A_i+\underset{j=1}{\overset{m}{\Σ}}\frac{B_{ij}{\mathrm{\ΔB}}_{ij}}{100}}{100\left(1+\underset{j=1}{\overset{m}{\Σ}}{\mathrm{\ΔB}}_{ij}\right)}$ (formula 1)

In formula: X _ii-th grade of size composition mass percentage of-compound;

A _ito prepare burden in-compound i-th grade of size composition mass percentage of A;

B _iji-th grade of size composition mass percentage of the jth kind batching in B of preparing burden in-compound, all batchings in definition compound except batching A are referred to as batching B;

Δ B _ijthe quality of the jth kind batching in-batching B coordinates per-cent, is artificial set-point;

The species number of m-batching B;

3) according to each size composition calculating gained compound, name to compound according to current specifications, meet and name staying of requirement;

4) the various calculation result naming requirement will be met, add up the mass percentage of the compound size composition at different levels under the different mass proportioning of often kind of batching, and calculation result accordingly, the mix material proportioning 6 ~ 10 groups that initial option coarse grain mixing fine grained soil is corresponding, determines the proportioning of each group of compound;

5) compound is real joins

After achieving 6 ~ 10 groups of preliminary proportionings of representative compound, calculate proportioning by compound and join compound in fact, in real joining, carry out water content correction, namely use Δ B _j0replace the Δ B in formula 1 _ij,

${\mathrm{\ΔB}}_{j0}=\frac{100+W_{Bj}}{100+W_A}{\mathrm{\ΔB}}_{ij}$ (formula 4)

Δ B in formula _j0the actual mass proportioning (%) of the jth kind batching in-batching B;

W _athe water content (%) of-batching A;

W _bjthe water content (%) of the jth kind batching in-batching B.

6) after revising, analysis of physical and chemical property is done in sampling, comprises the physical property index such as the size composition of compound, severe, water content, and the chemical index such as N, P, K, organic substance, heavy metal element;

So far, the preparation stage completes.

Further, the A for preparing burden in compound is that one of materials such as stone/slag, fine grained soil, mine tailing are discarded in mine; Batching B comprises all batchings outside removing batching A.

Further, step 3) described in current specifications refer to " Code for investigation of geotechnical engineering " (GB50021) and " soil engineering classification standard " (GB/T50145);

Step 1), 6) physical and chemical property determining perform specification " Standard for test methods of earthworks " (GB/T50123) and " geochemical soil survey specification " (DZ/T0145).

Further, when only having two kinds to prepare burden, formula 1 is reduced to:

$X_i=\frac{100A_i+{\mathrm{\ΔB}}_{i1}}{10000\sqrt{\left(1+{\mathrm{\ΔB}}_{i1}\right)}}$ (formula 2)

Δ B _i1the quality mixture ratio (%) of the 1st kind of batching in-batching B.

Further, when only having three kinds to prepare burden, formula 1 is reduced to:

$X_i=\frac{100A_i+{\mathrm{\ΔB}}_{i1}+{\mathrm{\ΔB}}_{i2}}{10000(1+{\mathrm{\ΔB}}_{i1}+{\mathrm{\ΔB}}_{i2})}$ (formula 3)

Δ B _i1the quality mixture ratio (%) of the 1st kind of batching in-batching B;

Δ B _i2the quality mixture ratio (%) of the 2nd kind of batching in-batching B.

Further, A _ivalue obtains when doing batching and analyzing; I-th grade of size composition mass percentage of the jth kind batching in batching B, also knows when doing batching and analyzing.

Further, after the preparation stage completes, carry out pot experiment and test in place, preferentially leave and take optimum formula and use on the spot.

Pot experiment is the plantation composite soil of the actual proportioning preparation by batching, and select the plant variety of suitable Mine ecology reparation to carry out pot experiment, the plantation composite soil pot experiment quantity of every assembly ratio is no less than 10 basins, at least carry out the observation of a Growing season, select at least 3 group optimal proportions to use for test in place accordingly.

Test in place is the composite soil of several groups of optimal proportions adopting pot experiment to determine, often organizes test area and is no less than 100m ², by the observation of a Growing season, finally confirm to plant composite soil as the optimum of this land restoration in mining area and restoration of the ecosystem.

The present invention also provides a kind of plantation composite soil obtained according to aforesaid method, and for make with the purposes of restoration of the ecosystem.

Beneficial effect of the present invention is as follows: according to plantation composite soil compound method of the present invention, can with Mine Solid Wastes, fine grained soil being mixed by a certain percentage rear formation Mine Solid Wastes plantation composite soil.

The Mine Solid Wastes plantation composite soil of the present invention's preparation is adopted to have desirable plant nutrition characteristic, make ground with local methods with this artificial growth or reclaim, can not only utilize in large quantities and dispose Mine Solid Wastes, but also recovery of ecologic environment in a mine can be realized rapidly, more effective control action kou is played to environmental problems such as preventing mudstone, soil erosion, environmental pollution.

Embodiment

Specifically describe implementation process of the present invention below, and be used from explaination principle of the present invention by preferred embodiment one.

Contriver finds in ecological environments of the mountain area investigation, and many plants also can grow well on native stone mixed-matrix, inspire by this, and by researching and proposing the compound method of Mine Solid Wastes plantation composite soil, concrete preparation research process is as follows:

1. batching and physical and chemical property determining thereof: the solid waste (waste residue (stone) and/or mine tailing may be comprised) first choosing mining area to be researched and developed, and fine grained soil is as batching;

Each soil sampling analyzes the physical property index such as size composition, severe, water content of each batching, and the chemical index such as N, P, K, organic substance, heavy metal element.Test performs " Standard for test methods of earthworks " (GB/T50123) and " geochemical soil survey specification " (DZ/T0145).

According in code, before physical and chemical determination, soil sample will be dried.

2. compound preparation and physico-chemical property test thereof:

(1) calculate by the proportioning of the compound of size composition

Above-mentioned batching is carried out examination by the guidance of following formula 1-3 join, formula 1-3 calculates by the mass percentage proportioning of the size composition of compound:

$X_i=\frac{A_i+\underset{j=1}{\overset{m}{\Σ}}\frac{B_{ij}{\mathrm{\ΔB}}_{ij}}{100}}{100\left(1+\underset{j=1}{\overset{m}{\Σ}}{\mathrm{\ΔB}}_{ij}\right)}$ (formula 1)

In formula: X _ii-th grade of size composition mass percentage (%) of-compound;

A _ii-th grade of size composition mass percentage (%) of-batching A, this value obtains when doing batching and analyzing.Here definable batching A can be the barren rock (slag) that mining and ore dressing process produce, or mine tailing, or fine grained soil, generally all selects barren rock (slag) to decide batching A in reality;

B _iji-th grade of size composition mass percentage (%) of the jth kind batching in-batching B, here all batchings (can be fine grained soil or mine tailing etc.) beyond definite division batching A are referred to as " B ", so there will be " the jth kind batching in batching B " this saying, the kind one of batching B has m kind.Equally, i-th grade of size composition mass percentage of the jth kind batching in batching B, also knows when doing batching and analyzing;

Δ B _ijthe quality mixture ratio (%) of the jth kind batching in-batching B.Before proportioning calculates, several Δs B first set _ijvalue, substitutes into the size composition X that formula 1 calculates compound _i, then again compound is named according to calculation result, tentatively selects satisfactory mix material proportioning Δ B _ijcontinue to employ;

The species number of m-batching B.

Above-mentioned formula 1 is applicable to the calculating of all situations, and when only having two kinds to prepare burden, formula 1 can be reduced to:

$X_i=\frac{100A_i+{\mathrm{\ΔB}}_{i1}}{10000\sqrt{\left(1+{\mathrm{\ΔB}}_{i1}\right)}}$ (formula 2)

Δ B _i1the quality mixture ratio (% only has one in batching B) of the 1st kind of batching in-batching B.

When there being three kinds to prepare burden, formula 1 simplifies as follows:

$X_i=\frac{100A_i+{\mathrm{\ΔB}}_{i1}+{\mathrm{\ΔB}}_{i2}}{10000\left(1+{\mathrm{\ΔB}}_{i1}+{\mathrm{\ΔB}}_{i2}\right)}$ (formula 3)

Δ B _i1the quality mixture ratio (%) of the 1st kind of batching in-batching B;

Δ B _i2the quality mixture ratio (%) of the 2nd kind of batching in-batching B.

According to the size composition X calculating gained compound _i, name to composite soil according to current specifications " Code for investigation of geotechnical engineering " (GB50021) and " the engineering classification standard of soil " GB/T50145, meet and name just staying of requirement.

(2) the various calculation result will above-mentioned calculation formula being utilized to obtain, utilize Excel to show the mass percentage of the compound size composition at different levels added up under the different mass proportioning of often kind of batching, as table 2.And calculation result accordingly, tentatively determine the proportioning of compound, general mix material proportioning 6 ~ 10 groups corresponding to coarse grain mixing fine grained soil of selecting does pot experiment use.

Here coarse grain is more than 1mm, and the thickness grain of grogs is specification GB50021 and GB/T50145 regulation.Worth explanation is: above-mentionedly mention that reality also can by other any statistical methods, and the present invention does not limit this by Excel table statistics.

(3) compound is real joins and physico-chemical property test

Be more than the theoretical direction of batching, after achieving 6 ~ 10 groups of band table mix material proportionings, we can do pot experiment.

During by the above-mentioned mix material proportioning preparation compound tentatively determined, following item should be noted: because size composition is determined by screen analysis test after sample is dried, and do not need to carry out drying and processing to material during actual batching, therefore tackle the proportioning determined by above-mentioned theory and carry out water content correction, modified computing formulae is as follows:

${\mathrm{\ΔB}}_{j0}=\frac{100+W_{Bj}}{100+W_A}{\mathrm{\ΔB}}_{ij}$ (formula 4)

Δ B in formula _j0the actual mass proportioning (%) of the jth kind batching in-batching B;

W _athe water content (%) of-batching A;

W _bjthe water content (%) of the jth kind batching in-batching B.

After correction, the physical properties such as severe, water content of sampling and measuring compound, and the chemical index such as N, P, K, organic substance, heavy metal element, perform equally current specifications " Standard for test methods of earthworks " (GB/T50123) and " geochemical soil survey specification " (DZ/T0145).

The above-mentioned proportioning just substantially completing mine plantation composite soil calculates and sample process, next can test these samples.

3. pot experiment: by the above-mentioned mix material proportioning preparation plantation composite soil determined, and select the plant variety of suitable Mine ecology reparation to carry out pot experiment.The plantation composite soil pot experiment quantity of every assembly ratio is no less than 10 basins, at least carries out the observation of a Growing season.Select 3 assembly accordingly than using for test in place.

4. test in place: test in place adopts above-mentioned 3 assembly determined than the planting soil of preparation, often organizes test area and is no less than 100m ².By the observation of a Growing season, confirmation can be used afterwards as this land restoration in mining area and restoration of the ecosystem, then carries out spread use.

Here is an embodiment

Embodiment one: white stone mouth delafossite mountain, Laiyuan County, Hebei province solid waste plantation composite soil preparation.

1. material and equipment: useless be cut (stone), mine tailing, fine grained soil, their physico-chemical property is as shown in table 1.Flowerpot and frame: specification is 30cm × 45cm.

2. kind to plant composite soil to coordinate and calculate and select: adopt Excel to show statistical method, as shown in table 2 by the proportioning calculation result of size composition.According to the proportioning of table 2 result tentatively selected Mine Solid Wastes plantation composite soil, i.e. the proportioning of mine tailing and barren rock, fine grained soil and barren rock, totally 6 groups: (1) 50%, 50%; (2) 50%, 80%; (3) 50%, 110%; (4) 50%, 140%; (5) 50%, 170%; (6) 50%, 200%.

Above-mentioned primary election proportioning is respectively through the revised actual proportioning of water content: (1) 57%, 60%; (2) 57%, 96%; (3) 57%, 133%; (4) 57%, 169%; (5) 57%, 205%; (6) 57%, 241%.

3. pot experiment: prepare 6 groups of plantation composite soils by the above-mentioned proportioning determined, often organize 10 basins, be respectively charged into composite soil to basin top 5cm.To plant again in each flowerpot a strain mulberry tree seedling.For the ease of comparing, (1) selected seedling size basic to, plant height is about 15cm, the diameter of a cross-section of a tree trunk 1.3 meters above the ground all at about 0.5cm; (2) under outdoor environment, maintaining method is identical.

4. test in place: two lump ore mountain slag banks are selected in test site, all face south.The area of slag bank A is about 210m ², gradient scope 39 ° ~ 53 °, upper slow lower steep, slope high scope 30 ~ 36m.Adopt the present invention to plant composite soil and process rear plantation arbor-vitae seedling, spacing 3 ~ 5m to domatic; The area of slag bank B is about 260m ², gradient scope 41 ° ~ 52 °, slope high scope 33 ~ 37m.First arrange out one-level step at domatic waist, then directly cover fine grained soil, equally plant arbor-vitae seedling with slag bank A.Under identical condition of managing and protecting, the effect after a year is completely different, and front side cypress surviving rate is higher, domatic faint by precipitation erosion; The latter arbor-vitae surviving rate is very low, domaticly washes away comparatively serious by precipitation, and define groove and the rill of comparatively dense, thick ditch appears in local location.

Shortenings and Key Term definition:

1. composite soil: in engineering, composite soil refers to that particulate (comprising powder and clay) and coarse grain (comprising macrosome and coarse grain) mix and lack the soil of median diameter.When the fine grain quality that particle diameter in gravelly soil (coarse grained soil) is less than 0.075mm exceedes 25% of total mass, should name as coarse grain composite soil, comprise erratic boulder (block stone) composite soil, cobble (rubble) composite soil, circle gravel (dust) grain composite soil; When the coarse grain quality that particle diameter in fine grained soil (silt or cohesive soil) is greater than 2mm exceedes 25% of total mass; particulate composite soil should be decided to be, comprise particulate mixing erratic boulder (block stone) soil, particulate mixing cobble (rubble) soil, particulate mixing circle gravel (dust) soil.

2. Mine Solid Wastes plantation composite soil: be called for short plantation composite soil, refer to mining barren rock for main material, with mine tailing and fine grained soil for batching, by certain proportioning coordinate and can the artificial composite soil of suitable planting plant.

The present invention protects the Mine Solid Wastes plantation composite soil obtained under above-mentioned compound method equally.

The present invention is the same protection this artificial growth composite soil that will obtain also, for make with in ecological reestablishment, from covering in the past make with local methods different with ecological reestablishment, the present invention's protection be directly all adopt this composite soil for make and repair.

The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.

The raw-material physico-chemical property table of table 1

Note: "-" represents and do not detect (containing not examining) project

Table 2 body waste plantation composite soil proportioning calculating achievement table

Batching A (barren rock (slag))+batching B (fine grained soil)

Claims (10)

1. a Mine Solid Wastes plantation composite soil compound method, it is characterized in that, process is as follows:

1) first choose Mine Solid Wastes to be prepared, and fine grained soil is as batching;

Get batching soil sample to dry, analyze the physico-chemical property of each batching respectively, comprise the physical property index such as size composition, severe, water content, and the chemical index such as N, P, K, organic substance, heavy metal element;

2) with the mass percent of size composition for index carries out proportioning calculating to compound, carry out under the guidance of formula 1:

$X_i=\frac{A_i+\underset{j=1}{\overset{m}{\Σ}}\frac{B_{ij}{\mathrm{\ΔB}}_{ij}}{100}}{100\left(1+\underset{j=1}{\overset{m}{\Σ}}{\mathrm{\ΔB}}_{ij}\right)}$ (formula 1)

In formula: X _ii-th grade of size composition mass percentage of-compound;

A _ito prepare burden in-compound i-th grade of size composition mass percentage of A;

B _iji-th grade of size composition mass percentage of the jth kind batching in B of preparing burden in-compound, all batchings in definition compound except batching A are referred to as batching B;

Δ B _ijthe quality of the jth kind batching in-batching B coordinates per-cent, is artificial set-point;

The species number of m-batching B;

3) according to each size composition calculating gained compound, name to compound according to current specifications, meet and name staying of requirement;

4) the various calculation result naming requirement will be met, add up the mass percentage of the compound size composition at different levels under the different mass proportioning of often kind of batching, and calculation result accordingly, the mix material proportioning 6 ~ 10 groups that initial option coarse grain mixing fine grained soil is corresponding, determines the proportioning of each group of compound;

5) compound is real joins

After achieving 6 ~ 10 groups of preliminary proportionings of representative compound, calculate proportioning by compound and join compound in fact, in real joining, carry out water content correction, namely use Δ B _j0replace the Δ B in formula 1 _ij,

${\mathrm{\ΔB}}_{j0}=\frac{100+W_{Bj}}{100+W_A}{\mathrm{\ΔB}}_{ij}$ (formula 4)

Δ B in formula _j0the actual mass proportioning (%) of the jth kind batching in-batching B;

W _athe water content (%) of-batching A;

W _bjthe water content (%) of the jth kind batching in-batching B;

6) after revising, analysis of physical and chemical property is done in sampling, comprises the physical property index such as the size composition of compound, severe, water content, and the chemical index such as N, P, K, organic substance, heavy metal element;

So far, the preparation stage completes.

2. Mine Solid Wastes plantation composite soil compound method according to claim 1, it is characterized in that, the A for preparing burden in compound is that one of stone/slag, fine grained soil, mine tailing are discarded in mine; Batching B comprises all batchings outside removing batching A.

3. Mine Solid Wastes plantation composite soil compound method according to claim 1, it is characterized in that, step 3) described in current specifications refer to " Code for investigation of geotechnical engineering " (GB50021) and " soil engineering classification standard " (GB/T50145);

Step 1), 6) physical and chemical property determining perform specification " Standard for test methods of earthworks " (GB/T50123) and " geochemical soil survey specification " (DZ/T0145).

4. Mine Solid Wastes plantation composite soil compound method according to claim 1, it is characterized in that, when only having two kinds to prepare burden, formula 1 is reduced to:

$X_i=\frac{100A_i+{\mathrm{\ΔB}}_{i1}}{10000(1+{\mathrm{\ΔB}}_{i1})}$ (formula 2)

Δ B _i1the quality mixture ratio (%) of the 1st kind of batching in-batching B.

5. Mine Solid Wastes plantation composite soil compound method according to claim 1, it is characterized in that, when only having three kinds to prepare burden, formula 1 is reduced to:

$X_i=\frac{100A_i+{\mathrm{\ΔB}}_{i1}+{\mathrm{\ΔB}}_{i2}}{10000\left(1+{\mathrm{\ΔB}}_{i1}+{\mathrm{\ΔB}}_{i2}\right)}$ (formula 3)

Δ B _i1the quality mixture ratio (%) of the 1st kind of batching in-batching B;

Δ B _i2the quality mixture ratio (%) of the 2nd kind of batching in-batching B.

6. the Mine Solid Wastes plantation composite soil compound method according to claim 1 or 4 or 5, is characterized in that, A _ivalue obtains when doing batching and analyzing; I-th grade of size composition mass percentage of the jth kind batching in batching B, also knows when doing batching and analyzing.

7., according to the Mine Solid Wastes plantation composite soil compound method one of claim 1-5 Suo Shu, it is characterized in that, after the preparation stage completes, carry out pot experiment and test in place, preferentially leave and take optimum formula and use on the spot.

8. Mine Solid Wastes plantation composite soil compound method according to claim 7, it is characterized in that, pot experiment is the plantation composite soil of the actual proportioning preparation by batching, and select the plant variety of suitable Mine ecology reparation to carry out pot experiment, the plantation composite soil pot experiment quantity of every assembly ratio is no less than 10 basins, at least carry out the observation of a Growing season, select at least 3 group optimal proportions to use for test in place accordingly.

9. Mine Solid Wastes plantation composite soil compound method according to claim 7, it is characterized in that, test in place is the composite soil of several groups of optimal proportions adopting pot experiment to determine, often organizes test area and is no less than 100m ², by the observation of a Growing season, finally confirm to plant composite soil as the optimum of this land restoration in mining area and restoration of the ecosystem.

10. according to a plantation composite soil for the Mine Solid Wastes plantation composite soil compound method preparation one of claim 1-9 Suo Shu, and for make with the purposes of restoration of the ecosystem.