CN112913561B - Method for restoring mine ecology by using high-valued sludge matrix - Google Patents
Method for restoring mine ecology by using high-valued sludge matrix Download PDFInfo
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- CN112913561B CN112913561B CN202110156234.5A CN202110156234A CN112913561B CN 112913561 B CN112913561 B CN 112913561B CN 202110156234 A CN202110156234 A CN 202110156234A CN 112913561 B CN112913561 B CN 112913561B
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- 239000011159 matrix material Substances 0.000 title claims abstract description 46
- 239000010802 sludge Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 23
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- 239000002985 plastic film Substances 0.000 claims abstract description 18
- 229920006255 plastic film Polymers 0.000 claims abstract description 18
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- 239000011229 interlayer Substances 0.000 claims abstract description 16
- 238000011049 filling Methods 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 15
- 241001528578 Malus halliana Species 0.000 claims description 4
- 241000218378 Magnolia Species 0.000 claims description 3
- 241000723347 Cinnamomum Species 0.000 claims description 2
- 241000830535 Ligustrum lucidum Species 0.000 claims description 2
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- 235000012904 Prunus salicina Nutrition 0.000 claims description 2
- 235000003681 Prunus ussuriensis Nutrition 0.000 claims description 2
- 240000000528 Ricinus communis Species 0.000 claims description 2
- 235000004443 Ricinus communis Nutrition 0.000 claims description 2
- 239000007766 cera flava Substances 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 claims description 2
- 241001243666 Photinia serratifolia Species 0.000 claims 2
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- DSSYKIVIOFKYAU-XCBNKYQSSA-N (R)-camphor Chemical compound C1C[C@@]2(C)C(=O)C[C@@H]1C2(C)C DSSYKIVIOFKYAU-XCBNKYQSSA-N 0.000 description 3
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
- A01G24/12—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material containing soil minerals
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Soil Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Botany (AREA)
- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
- Cultivation Of Plants (AREA)
Abstract
The application discloses a method for restoring mine ecology by utilizing a high-valued sludge matrix, and relates to the technical field of mine ecology restoration. Uniformly mixing 20-40 parts of common planting soil and 50-80 parts of high-valued sludge matrix to obtain planting matrix soil for standby; paving a plastic film or non-woven fabric as an interlayer in the planting area, and placing the root control container on the interlayer; adding planting matrix soil into the root control container to 20% -30% of the volume of the root control container, placing the seedlings into the middle position of the root control container, and adding planting matrix soil to 85% -90% of the volume of the root control container; and filling black shale at the upper part of the root control container of the planted seedlings. The method takes a root control container and a high-valued sludge matrix as basic raw materials, takes a plastic film, non-woven fabrics and common planting soil as planting materials, takes black shale as ingredients, fully utilizes the black shale and sludge to carry out high-valued reutilization of waste resources, can improve the structure of mine soil and improve the nutritional ingredients of the mine soil, and fully utilizes the black shale in tailings to mine ecological restoration.
Description
Technical Field
The application relates to the technical field of mine ecological restoration, in particular to a method for restoring mine ecology by utilizing a high-valued sludge matrix.
Background
With the rapid increase of mineral resource consumption in recent years, mining activities are more and more frequent, and mining is accompanied by ecological environment destruction, thereby causing various natural disasters and environmental problems. Such as serious geological disasters including collapse, water and soil loss, mountain collapse, debris flow, heaving pit and the like caused by the damage of mine surface soil and vegetation, and environmental problems including water quality atmosphere pollution, soil degradation, biodiversity loss and the like caused by the damage of surface landscape vegetation, mine abandoned lands generated by mining, including mining stripping soil, waste pit, tailings, waste rock, mine washing wastewater sediment and the like, and mining working surfaces, mechanical facilities, mine auxiliary buildings, mine roads and the like which are occupied first and then abandoned. The scientific research of land reclamation and ecological restoration in mining areas has become particularly important in the face of the current situations of land resource shortage and large amount of waste land unavailable.
But mine ecological restoration faces the problems that soil is stripped and lost, only waste slag is used in the field, and the preparation cannot be planted. Patent CN106797820a discloses mine ecological restoration nutrition covering soil taking municipal sludge as a main mechanism and a preparation method thereof, and the mine ecological restoration nutrition covering soil, namely a high-valued sludge matrix, is obtained after the treatment of piling up fermentation stabilization of dehydrated municipal sludge, air-dried branches, slag and tailings. Meanwhile, the application of the nutrient covering soil for mine ecological restoration in mine ecological restoration is also disclosed, the planting of plants is carried out in a manner of cutting, seedling planting, transplanting or directly sowing seeds, but a specific planting method is not disclosed.
Because the mine abandoned land surface is usually exposed and hard, the planting soil layer is thin, the soil structure is poor, the nutrient content is low, the soil water retention is poor, the survival rate of transplanted seedlings is low, the planting cost is high, and finally the land reclamation rate of the mine abandoned land is low, and the ecological restoration degree of the mine is low.
Disclosure of Invention
The application aims to provide a method for restoring mine ecology by utilizing a high-value sludge matrix, which solves the problems of low survival rate of transplanted seedlings, low land reclamation rate of the mine and high ecological restoration difficulty of the existing mine caused by a soil structure.
In order to solve the technical problems, the application adopts the following technical scheme: the method for restoring mine ecology by using the high-valued sludge matrix is characterized by comprising the following steps of:
(1) Uniformly mixing 20-40 parts of common planting soil and 50-80 parts of high-valued sludge matrix to obtain planting matrix soil for standby;
(2) And a plastic film or non-woven fabric is paved in the planting area to serve as an interlayer, and the root control container is arranged on the interlayer to effectively block migration and infiltration of heavy metals.
(3) Adding planting matrix soil into the root control container to 20% -30% of the volume of the root control container, placing the seedlings into the middle position of the root control container, and adding planting matrix soil to 85% -90% of the volume of the root control container;
(4) And filling a layer of black shale on the upper part of the root control container of the planted seedlings to 95% of the root control container. The black shale is covered on the soil, so that the evaporation capacity can be effectively reduced, rain wash is prevented, and the effects of wind prevention, soil fixation and water retention can be achieved.
The root control container is a cylindrical shell with openings at the top and the bottom, ventilation holes are uniformly distributed on the side wall, the diameter is 20-120cm, and the height is 20-120 cm. The root control container can play a role in controlling qi and repairing roots: root-increasing action (increasing fibrous root, lateral root); root control action (control of main root growth, avoid formation of entangled roots); the growth promoting process (the root system is robust in development, can store a large amount of nutrients, meets the growth requirement of the nursery stock in the initial stage of planting, and creates good conditions for the survival and rapid growth of the nursery stock); the transplanting method has the advantages of no root injury during transplanting, no season limitation, simple management procedure, high survival rate and high growth speed.
The further technical proposal is that the inner side and the outer side of the root control container are respectively covered with a plastic film or a non-woven fabric. Double-layer protection further blocks migration and infiltration of heavy metals.
The root control container is arranged in a quincuncial alternate mode with wide and narrow rows, the spacing between the planted seedlings is 1-5 m, the row spacing between the wide rows is 2.4-4.8 m, and the row spacing between the narrow rows is 1.2-3.6 m. The planting mode is favorable for the seedlings to fully carry out photosynthesis, and the vacant land in the row spacing can be reused, so that the land utilization value is increased.
The further technical proposal is that the nursery stock is at least one of photinia globosa, cinnamomum Yunnanensis, photinia yunnanensis, prunus salicina, ricinus communis tea, malus halliana, ligustrum lucidum, cera flava and Magnolia pseudomonarda.
The further technical scheme is that irrigation pipelines are distributed among the field planting seedling rows, water and fertilizer drip irrigation facilities are distributed around each root control container above the middle basin, and sprinkling irrigation facilities are distributed on the root control containers below the middle basin or seedling raising and hardening areas. The middle basin is a root control container with the diameter of 60cm and the height of 60 cm. The most effective water-saving irrigation mode of spray and drip irrigation is adopted, and the water utilization rate can reach 95 percent. Water and fertilizer drip irrigation facilities are distributed around each root control container above the middle basin (with the diameter of 60cm and the diameter of up to 60 cm), and sprinkling irrigation facilities are distributed on the root control containers below the middle basin (with the diameter of up to 60cm and the diameter of up to 60 cm) or seedling raising and hardening areas. Advantages are: the soil structure is not damaged, the scouring is reduced, and hardening is avoided; the water quantity is easy to control, and the ground runoff and the deep soil leakage are not generated; the irrigation duration is longer, the irrigation period is short, the small water duty irrigation can be realized, and the labor investment is obviously reduced; the root zone of the crops can keep the optimal water supply state and fertilizer supply state, so that the plant growth vigor can be improved. According to measurement and calculation, each seedling is watered for 1.5L once, so that the water consumption for two days can be met. The monthly water demand was about 22.5L. The influence of rainy days and rainy seasons is removed, and the annual water consumption of the individual seedlings is about 135L according to the measurement and calculation of 6 months of annual watering.
The further technical proposal is that element supplementation is carried out in the spacing of the wide and narrow rows of the field planting nursery stock, and a small underground water pit can be excavated and manufactured; the seedlings of the root control container with small specification can also be planted; it can also be used for seeding and seedling raising or hardening seedlings, and the land area is fully utilized. Mine water is short, besides field planting water, rainwater and water for waterwheel irrigation, water on the mine in summer water shortage period is in a state of supply shortage, and underground water storage pits can be excavated and built at intervals, and the water storage pit has the following specification: 20-100cm long, 20-100cm wide and 1.5-3m deep. The water storage pit can pump water to water for seedling irrigation by using a water pump under the condition of serious water shortage. When the seedlings are planted according to the wide and narrow rows, after the spray drip irrigation layout is good, sowing or cutting seedlings can be carried out in 2-3 months, 6-7 months and 9-10 months each year according to the progress plan of ecological restoration of the mine, and seedlings which are cultivated in the greenhouse to be 30-60cm high can be put into the spacing of the wide and narrow rows for hardening, so that the seedlings carry out photosynthesis, and stronger seedlings are grown.
The working mechanism is as follows: the method takes a root control container and a high-valued sludge matrix as basic raw materials, takes a plastic film, non-woven fabrics and common planting soil as planting materials, takes black shale as ingredients, fully utilizes the black shale and sludge to carry out high-valued reutilization of waste resources, can improve the structure of mine soil and improve the nutritional ingredients of the mine soil, and fully utilizes the black shale in tailings to mine ecological restoration.
And the waste resources and the root control container are utilized to plant the seedlings, so that the vegetation is convenient to attach and root, and the survival rate of the seedling planting and the transplanting survival rate are facilitated. The tailings can provide nutrient elements and can also improve the water retention performance. The waste resources and the root control container are applied to the modes of mine ecological restoration, mine landscaping, landscape lifting and building, tree planting and the like, so that the scenes of 'night forestation' and 'moving forests' can be formed.
Compared with the prior art, the application has the beneficial effects that: the method has the advantages of quick and obvious ecological restoration effect of the mine, low cost and simple operation, takes the high-value black shale in the sludge matrix and the tailings as the main raw material, accounts for more than 50% of the total raw material, can quickly consume the sludge and the tailings, has low cost, and has important significance for environmental protection and effective utilization of resources. The planting mode of adding the sludge matrix into the root control container is applied to mines, so that the growth of seedlings is facilitated, the seedlings are convenient to transplant, and the survival rate of the seedlings is high. The root control container cultivation method and the application of the sludge product can effectively shorten the plant seedling recovery period and quickly adapt to the surrounding environment. The method for restoring the mine ecology by utilizing the waste resources and the root control container to plant the nursery stock is applied to restoring the mine ecology, has the advantages of short curing time, convenient and easily obtained raw materials, short production period, simple method, no need of special teaching and capability of carrying out mass production and popularization. The seedlings planted through the root control container can form the scenes of 'night forests' and 'moving forests'. The method has the advantages that the high-value sludge and the tailing slag are rapidly consumed by planting the nursery stock on the mine restoration, the cost is low, waste is changed into valuable, ecological restoration and ecological management are spatially coupled, an industrial and circulating mode is formed, comprehensive management of the sludge and the waste land of the phosphorite mountain and resource and environment coordination development are realized, and a new mode of Yunnan pond river basin pollution control, ecological protection and green development is constructed, so that the method has important reference and guiding significance for future ecological restoration.
Drawings
FIG. 1 is a flow chart of the method steps of the present application.
Fig. 2 is a schematic diagram of the seedling planting of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
Example 1
Mixing 20 parts of common planting soil (mining reclamation soil) with 80 high-valued sludge matrix uniformly, mashing black shale to 2-3cm, customizing a plurality of control containers with diameter of 25cm and height of 25cm, and winding the root control containers into cylinders with top and bottom openings by adopting plastic plates.
Plastic film with the thickness of 6um or 1-2 layers of non-woven fabrics are paved in the planting area to serve as an interlayer, and the control containers are uniformly arranged on the interlayer. Meanwhile, plastic films or 1-2 layers of non-woven fabrics with the thickness of 6um are paved inside and outside the root control container.
Adding planting matrix soil into the root control container to 20% of the volume of the root control container, placing the nursery stock into the middle of the root control container, adding the planting matrix soil to 85% of the volume of the root control container, covering black shale on the upper part of the planting matrix soil, and filling the whole root control container.
The field planting seedlings are arranged in a quincuncial alternate mode with the wide rows and the narrow rows, the spacing is 1m, the row spacing of the wide rows is 2.4m, the row spacing of the narrow rows is 1.2m, irrigation pipelines are distributed among the field planting seedlings, water and fertilizer drip irrigation facilities are distributed around each root control container above the middle basin, and the root control containers below the middle basin or the seedling raising and hardening areas are distributed.
And selecting the nursery stock with the breast diameter of 1-2cm for planting according to the row spacing and the interval of the nursery stock, and selecting the Yunnan camphor and the costal tea for planting, wherein the rising trend of the Yunnan camphor is better than that of the costal tea, and the transplanting survival rate in ecological restoration of mines is higher and the restoration effect is better.
Example 2
Mixing 30 parts of common planting soil (mining reclamation soil) with 70 high-valued sludge matrix uniformly, mashing black shale to 2-3cm, customizing a plurality of control containers with the diameter of 50cm and the height of 50cm, and winding the root control containers into cylinders with openings at the top and the bottom by adopting plastic plates.
Plastic film with the thickness of 6um or 1-2 layers of non-woven fabrics are paved in the planting area to serve as an interlayer, and the control containers are uniformly arranged on the interlayer. Meanwhile, plastic films or 1-2 layers of non-woven fabrics with the thickness of 6um are paved inside and outside the root control container.
Adding planting matrix soil to 25% of the volume of the planting matrix soil in the root control container, placing the nursery stock in the middle of the root control container, adding the planting matrix soil to 90% of the volume of the root control container, covering black shale on the upper part of the planting matrix soil, and filling the whole root control container.
The field planting seedlings are arranged in a quincuncial alternate mode with the wide rows and the narrow rows, the spacing is 3m, the row spacing of the wide rows is 3.6m, the row spacing of the narrow rows is 1.2m, irrigation pipelines are distributed among the field planting seedlings, water and fertilizer drip irrigation facilities are distributed around each root control container above the middle basin, and the root control containers below the middle basin or the seedling raising and hardening areas are distributed.
And selecting the rib tea and the phoenix yunnanensis which have the chest diameter of 2-3cm according to the planting interval and the row interval for planting, wherein the growth vigor of the rib tea is better.
Example 3
Uniformly mixing 40 parts of common planting soil with 60 high-valued sludge matrixes, mashing the black shale to 2-3cm, customizing a plurality of control containers with the diameter of 80cm and the height of 80cm, and winding the root control containers into cylinders with openings at the top and the bottom by adopting plastic plates.
Plastic film with the thickness of 6um or 1-2 layers of non-woven fabrics are paved in the planting area to serve as an interlayer, and the control containers are uniformly arranged on the interlayer. Meanwhile, plastic films or 1-2 layers of non-woven fabrics with the thickness of 6um are paved inside and outside the root control container.
Adding planting matrix soil to 30% of the volume of the planting matrix soil in the root control container, placing the nursery stock in the middle of the root control container, adding the planting matrix soil to 95% of the volume of the root control container, covering black shale on the upper part of the planting matrix soil, and filling the whole root control container.
The field planting seedlings are arranged in a quincuncial alternate mode with wide and narrow rows, the spacing is 5m, the row spacing of the wide rows is 3.6m, the row spacing of the narrow rows is 2.4m, irrigation pipelines are distributed among the field planting seedlings, water and fertilizer drip irrigation facilities are distributed around each root control container above the middle basin, and the root control containers below the middle basin or the seedling raising and hardening areas are distributed.
Selecting 4-10cm seedlings according to the planting distance and the row distance: the photinia fraseri, the malus halliana, the purple leaf plum, the ligustrum japonicum and the pseudo-single magnolia are planted, and the survival rate of the planted seedlings is very high; wherein photinia fraseri and Prunus cerasifera have the best growth vigor and the maximum chest diameter growth amount; the photinia fraseri, the malus halliana and the prunus cerasifera have the best landscape effect and are very suitable for ecological restoration of mines.
Example 4
Uniformly mixing 40 parts of common planting soil with 50 high-valued sludge matrixes, mashing the black shale to 2-3cm, customizing a plurality of control containers with the diameter of 80cm and the height of 80cm, and winding the root control containers into cylinders with openings at the top and the bottom by adopting plastic plates.
Plastic film with the thickness of 6um or 1-2 layers of non-woven fabrics are paved in the planting area to serve as an interlayer, and the control containers are uniformly arranged on the interlayer. Meanwhile, plastic films or 1-2 layers of non-woven fabrics with the thickness of 6um are paved inside and outside the root control container.
Adding planting matrix soil to 22% of the volume of the planting matrix soil in the root control container, placing the nursery stock in the middle of the root control container, adding the planting matrix soil to 90% of the volume of the root control container, covering black shale on the upper part of the planting matrix soil, and filling the whole root control container.
The field planting seedlings are arranged in a quincuncial alternate mode with wide and narrow rows, the spacing is 2m, the row spacing of the wide rows is 4.8m, the row spacing of the narrow rows is 3.6m, irrigation pipelines are distributed among the field planting seedlings, water and fertilizer drip irrigation facilities are distributed around each root control container above the middle basin, and the root control containers below the middle basin or the seedling raising and hardening areas are distributed.
And selecting the nursery stock with the chest diameter of 1-3cm according to the planting distance and the row spacing of the nursery stock, and planting Yunnan camphor, yunnan run-up photinia and costa fraseri, wherein the survival rate of the nursery stock is relatively high, but the yunnan run-up photinia is easy to freeze and the growth vigor is less obvious.
Example 5
A method for restoring mine ecology by utilizing high-valued sludge matrix, which comprises the following steps:
as shown in figure 1, taking an actual production example as an illustration, the whole technology of planting seedlings by using the root control container is applied to restoring mine ecology, and the required materials are black shale, the root control container, a plastic film, common planting soil and high-valued sludge substrate soil.
1) Site selection
Selecting a land block to be recovered on the abandoned mine, and leveling the land.
2) Planting in a mode of wide and narrow rows and plum blossom shapes, wherein the spacing is 1m/3m/5m, the row spacing of the wide rows is 2.4m/3.6m/4.8m, the row spacing of the narrow rows is 1.2m/2.4m/3.6m, and lines are drawn in a planting area.
3) Mould making
Taking a root control container with the same diameter and height, wherein the diameter is as follows: 20-120cm, the height is: 20-120cm, and two opposite ends of the root control container are fixed by 3-5 pull ropes.
4) Adding an interlayer at the bottom of the root control container, and adopting a first method: 2 layers of 6-wire plastic films are paved on a fixed planting area; and a second method: and paving 1 layer of non-woven fabric in a fixed planting area. Meanwhile, plastic films or 1-2 layers of non-woven fabrics with the thickness of 6um are paved inside and outside the root control container.
5) And placing the root control container in a proper area of the interlayer, and planting plants.
6) And adding 20% of stabilized high-value sludge matrix as matrix soil according to the planting proportion to replace the traditional planting base fertilizer.
7) Planting seedlings, placing the seedlings in the middle of a root control container, adding 35 parts of common planting soil and 65 parts of high-valued sludge matrix soil according to the specific formula proportion of the planting soil, filling the planting soil into the root control container, and filling the planting soil to 90% of the root control container.
8) The black shale is added at the upper part of the root control container of the planted nursery stock, so that the effect of keeping moisture, nutrient substances, solidifying matrix and soil can be achieved.
9) Irrigation pipelines are arranged between rows, water and fertilizer spraying and drip irrigation facilities are arranged around each root control container above the middle basin, and the root control containers below the middle basin or seedling raising and hardening areas are arranged.
10 Element supplement is carried out in the interval between the wide row and the narrow row, and a small water storage pit can be excavated and manufactured; the seedling of the root control container with small specification can also be planted in an empty way; it can also be used for seeding and seedling raising or hardening seedlings, and the land area is fully utilized.
Although the application has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope and spirit of the principles of this disclosure. More specifically, various modifications and improvements may be made to the component parts or arrangements within the scope of the disclosure, drawings and claims. In addition to variations and modifications in the component parts or arrangements, other uses will be apparent to those skilled in the art.
Claims (2)
1. The method for restoring mine ecology by using the high-valued sludge matrix is characterized by comprising the following steps of:
(1) Uniformly mixing 20-40 parts of common planting soil and 50-80 parts of high-valued sludge matrix to obtain planting matrix soil for standby;
(2) Paving a plastic film or non-woven fabric as an interlayer in the planting area, and placing the root control container on the interlayer;
(3) Adding planting matrix soil into the root control container to 20% -30% of the volume of the root control container, placing the seedlings into the middle position of the root control container, and adding planting matrix soil to 85% -90% of the volume of the root control container;
(4) Filling a layer of black shale at the upper part of the root control container of the planted nursery stock until the volume of the root control container reaches 95%;
the root control container is a cylindrical shell with openings at the top and the bottom, ventilation holes are uniformly distributed on the side wall, the diameter of the root control container is 20-120cm, and the height of the root control container is 20-120 cm; the inner side and the outer side of the root control container are respectively covered with a plastic film or a non-woven fabric; the root control containers are arranged in a quincuncial alternate mode of interplanting and wide-narrow row spacing, the spacing between the field planting seedlings is 1-5 m, the wide row spacing is 2.4-4.8 m, and the narrow row spacing is 1.2-3.6 m.
2. A method for restoring mine ecology utilizing high valued sludge substrate as defined in claim 1 wherein: the seedling is at least one of Photinia serrulata, cinnamomum yunnanensis, yunnan Runlun photinia serrulata, prunus salicina, ricinus communis, malus halliana, ligustrum lucidum, cera flava, and Magnolia pseudomonarda.
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