CN209861515U - Ecological remediation system of rare earth ore waste land - Google Patents
Ecological remediation system of rare earth ore waste land Download PDFInfo
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- CN209861515U CN209861515U CN201822276294.7U CN201822276294U CN209861515U CN 209861515 U CN209861515 U CN 209861515U CN 201822276294 U CN201822276294 U CN 201822276294U CN 209861515 U CN209861515 U CN 209861515U
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- Cultivation Of Plants (AREA)
Abstract
The utility model discloses an ecological remediation system in tombarthite ore deposit abandonment ground. The utility model discloses divide into a plurality of fields with tombarthite ore deposit abandonment ground, be equipped with ecological detention area and plant cave in the field, ecological detention area is equipped with a plurality of bends, and is equipped with the retrieval and utilization pond of detention in bend department for collect and store the fertilizer that the field runs off, the slope of ecological detention area is 1% ~ 1.5%; the cross section of the ecological detention zone is of a U-shaped structure and sequentially comprises a cushion layer, a leguminous green manure seed layer and a non-woven fabric layer from bottom to top. The utility model discloses can effectively improve tombarthite ore deposit abandonment ground soil structure geology, improve the plant survival rate of tombarthite ore deposit abandonment ground, build ecological landscape.
Description
Technical Field
The utility model relates to an abandonment mine ecological environment restoration technical field, concretely relates to ecological remediation system in tombarthite ore deposit abandonment ground.
Background
The existing rare earth ore wasteland treatment technology mainly comprises a soil improvement link and an ecological restoration link. The soil improvement method of the rare earth ore abandoned land mainly adopts a chemical method, namely, the nutrition required by plants is supplemented by adding lime, common organic fertilizer or chemical fertilizer, however, the method has little improvement effect on the soil texture structure of the rare earth tailings with strong acidity and serious desertification and has no long-term effect; lime is added to adjust the pH value of the soil, and the lime can react with carbon dioxide to generate calcium carbonate precipitate, so that the soil hardening phenomenon is easily caused; the addition of common organic fertilizer is less in dosage, and subsequent topdressing management is lacked, so that the effect of improving the soil texture is not obvious, the method is not suitable for rare earth waste soil with extremely low fertility, and sustainability is not achieved; the plant growth is maintained by applying the fertilizer, and secondary pollution is easily caused.
In the aspect of ecological restoration management, herbaceous planting is basically adopted at present, mountain green coverage is realized through a single re-green mode, herbaceous species are mostly local common weed species such as bermuda grass, paspalum latiflorum, russiancholia, dichotoma grass and the like, the planting which can continuously improve soil texture or build ecological landscapes is not involved, and the ecological restoration mode of the rare earth mine site is too single, so that ecological benefits, economic benefits and social benefits are lower.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's weak point and provide an ecological remediation system of tombarthite ore deposit abandonment ground, can effectively improve tombarthite ore deposit abandonment ground soil structure, improve the plant survival rate of tombarthite ore deposit abandonment ground, build ecological landscape.
In order to achieve the purpose, the utility model adopts the following technical scheme:
an ecological restoration system of a rare earth ore waste land is characterized in that the rare earth ore waste land is divided into a plurality of fields, an ecological retention zone and planting holes are arranged in each field, the ecological retention zone is provided with a plurality of bends, a retention and recycling pool is arranged at each bend and used for collecting and storing fertilizer lost from the fields, the slope of the ecological retention zone is 1% -1.5%, and the lost water and fertilizer naturally flows to the retention and recycling pool without power; the cross section of the ecological detention zone is of a U-shaped structure and sequentially comprises a cushion layer, a leguminous green manure seed layer and a non-woven fabric layer from bottom to top.
The utility model discloses based on the characteristics that rare earth abandonment ground soil desertification is serious, the water retention is protected fertile poor, set up ecological detention area, can store partial rainwater, the nutrition fertilizer that the field piece runs off etc. the root system effect of the green manure of leguminous of deuterogamying still in soil or supply with crop growth with this partial moisture and nutrition required to reach cyclic utilization, improve the effect of soil geology.
Further, the leguminous green manure is trifolium repens, sweet clover or alfalfa, and further, the leguminous green manure is trifolium repens.
Further, the cushion layer is composed of natural porous adsorptive materials and waste native soil.
Further, the natural porous adsorbent material is diatomaceous earth.
Furthermore, the material of the detention recycling pool is an HDPE impermeable membrane.
Further, the width of the ecological detention zone is 0.3-0.5 m, and the depth is 0.15-0.25 m; the width of the excavation groove is 0.3-0.5 m, and the excavation depth is 0.25-0.35 m.
The utility model discloses a set up ecological detention area on the abandonment of tombarthite ore deposit, can improve the water conservation of field piece, protect fertile effect. The ecological detention belt material adopts diatomite which is a natural porous adsorptive mineral, and the diatomite has good functions of reporting water, retaining fertilizer and slowly releasing, can detente a part of rainwater and collect nitrogen, phosphorus and potassium fertilizers which are easy to run off; meanwhile, green manure is planted in the ecological detention zone, potassium can be activated and absorbed, and a large amount of organic fertilizer is generated in the growth process and supplied to flowers for growth; meanwhile, the yield of green manure of the land is increased, and the green manure can continuously improve the soil geology.
Furthermore, the cross section of the planting hole is trapezoidal, the planting hole sequentially comprises a non-woven fabric layer, an agriculture and forestry water retention agent layer and a matrix soil layer from bottom to top, and perennial flowers are planted on the matrix soil layer.
The agricultural and forestry water-retaining agent is super absorbent resin, is non-toxic and harmless, and can repeatedly release and absorb water to ensure water required for the growth of flowers in the early stage of growth.
Furthermore, the perennial flowers are also covered with a hay layer. The cover can be made by selecting the subtillis of the pioneer plant dicranopteris pedata or cyperus esculentus to avoid the burning of the seedling roots due to the sudden rise of the soil temperature in the daytime and also prevent the evaporation of a large amount of water to a certain extent, which is an important guarantee for the growth period of the fixed roots of flowers.
Furthermore, the planting density of the perennial flowers on the planting holes is 30-40 plants/m2The vervain is planted in the inner layer of the field, the coreopsis nigra, the officinal lily, the corn poppy and the senecio cineraria are planted in the peripheral edge strips of the field, and the white clover is planted in the field.
Furthermore, the width of the upper opening of the planting hole is 0.2-0.25 m, and the width of the lower opening of the planting hole is 0.15-0.2 m.
The utility model discloses a set up kind plant hole and plant view flowers in kind plant hole, can effectively improve the survival rate of flowers, improve the vegetation coverage, build the ecological view of tombarthite abandonment ground.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses based on the characteristics that rare earth abandonment ground soil desertification is serious, the water retention is protected fertile poor, set up ecological detention area, can store partial rainwater, the nutrition fertilizer that the field piece runs off etc. the root system effect of the green manure of leguminous of deuterogamying still in soil or supply with crop growth with this partial moisture and nutrition required to reach cyclic utilization, improve the effect of soil geology.
The utility model discloses a setting up kind plant hole and planting view flowers in kind plant hole, improving the survival rate of flowers, building tombarthite abandonment ground ecological landscape, with soil texture improvement, vegetation are rebuild, view building comprehensive consideration, create land use new value, let tombarthite mine abandonment ground take on new beauty.
Drawings
FIG. 1 is a schematic structural view of the ecological retention zone of the present invention, 1-field block, 2-ecological retention zone, 3-retention reuse pool, 4-planting hole;
FIG. 2 is a sectional structure view of the ecological retention zone of the present invention, 2-ecological retention zone, 5-non-woven fabric layer, 6-cushion layer;
FIG. 3 is a schematic structural view of the planting hole of the present invention, 7-withered grass layer, 8-non-woven fabric layer; 9-a matrix soil layer; 10-agriculture and forestry water-retaining agent layer.
Detailed Description
To better illustrate the objects, aspects and advantages of the present invention, the present invention will be further described with reference to specific embodiments. It will be understood by those skilled in the art that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 and 2, the ecological restoration system for the rare earth ore waste land comprises a plurality of fields 1, wherein an ecological retention zone 2 and planting holes 4 are arranged in each field 1, the ecological retention zone 2 is provided with a plurality of curved channels, a retention and reuse pool 3 is arranged at each curved channel and used for collecting and storing fertilizers lost from the fields, and the slope of the ecological retention zone 2 is 1% -1.5%; the cross section of the ecological detention belt 2 is of a U-shaped structure and sequentially comprises a cushion layer 6, a leguminous green manure seed layer and a non-woven fabric layer 5 from bottom to top.
The utility model discloses based on the characteristics that rare earth abandonment ground soil desertification is serious, the water retention is protected fertile poor, set up ecological detention area, can store partial rainwater and field piece nutrient fertilizer that runs off, the root system effect of the green manure of leguminous of deuterogamying still in soil or supply with crop growth with this partial moisture and nutrition and required to reach cyclic utilization, improve the effect of soil geology.
The leguminous green manure is white clover, sweet clover or alfalfa, and further the leguminous green manure is white clover. The white clover has no erect stem and crawls on the ground, has strong covering and regenerating capability and is easy to form a grass layer; the leguminous green manure has developed root system and can increase nitrogen in soil, and it is estimated that 2/3 of nitrogen in the leguminous green manure comes from the air; the fertilizer can enrich and activate soil nutrients, and is low in carbon-nitrogen ratio, low in lignin content, fast in mineralization and small in humification coefficient; the application of the leguminous green manure can activate and update soil organic matters, improve the composition of the organic matters, increase the quantity of tightly combined soil humus and improve the nitrogen supply capacity of the soil.
The cushion layer 6 consists of natural porous adsorptive materials and waste original soil; the non-woven fabric layer 5 is selected from garden non-woven fabrics.
The natural porous adsorbent material is diatomite.
The specification of the detention recycling pool 3 is 0.8 multiplied by 1m, and the material is HDPE impermeable membrane.
The width of the ecological detention zone 2 is 0.3-0.5 m, and the depth is 0.15-0.25 m; the width of the excavation groove is 0.3-0.5 m, and the excavation depth is 0.25-0.35 m; after excavation, mixing 40-50% of diatomite and 50-60% of waste land original soil in a mass ratio, backfilling to form a cushion layer 6, uniformly scattering Trifolium repens seeds on the cushion layer 6 at a scattering amount of 7.5-12 g/m, then paving green garden non-woven fabrics, and fixing the garden non-woven fabrics on the upper part, the middle part and the bottom part of the garden non-woven fabrics every 10m by using U-shaped nails.
As shown in fig. 3, the cross section of the planting hole 4 is trapezoidal, the planting hole 4 sequentially comprises a non-woven fabric layer 8, an agriculture and forestry water retention agent layer 10 and a matrix soil layer 9 from bottom to top, and perennial flowers are planted on the matrix soil layer 9; the matrix soil layer 9 is formed by mixing 30-40% of peat soil and 60-70% of waste land original soil in a mass ratio.
The agricultural and forestry water-retaining agent is super absorbent resin, is non-toxic and harmless, and can repeatedly release and absorb water to ensure water required for the growth of flowers in the early stage of growth.
The perennial flowers are also covered with a hay layer 7. The cover can be made by selecting the subtillis of the pioneer plant dicranopteris pedata or cyperus esculentus to avoid the burning of the seedling roots due to the sudden rise of the soil temperature in the daytime and also prevent the evaporation of a large amount of water to a certain extent, which is an important guarantee for the growth period of the fixed roots of flowers.
The planting density of perennial flowers on the planting holes is 30-40 plants/m2The vervain is planted in the inner layer of the field, the coreopsis nigra, the officinal lily, the corn poppy and the senecio cineraria are planted in the peripheral edge strips of the field, and the white clover is planted in the field.
The upper opening width of the planting hole 4 is 0.2-0.25 m, and the lower opening width is 0.15-0.2 m.
The utility model discloses select strong, the perennial root flowers crop of tolerance to plant in the field piece and build ecological landscape, the screening is fit for tombarthite abandonment ground and plants the perennial root flowers and plants including vervain, black heart chrysanthemum, medicinal lily, corn poppy, tianju, wherein the height of vervain adult plant is 0.8 ~ 1.2m, the height of black heart chrysanthemum adult plant is 0.6 ~ 0.8cm, the height of medicinal lily adult plant is 0.3 ~ 0.5m, the height of corn poppy adult plant is 0.4 ~ 0.5cm, the height of tianju adult plant is 0.3 ~ 0.5 cm; the vervain is planted on a large piece of the inner layer of a field, the periphery edge is decorated with the striped chrysanthemum indicum, the officinal lily, the corn poppy and the senecio cineraria, and the vervain and the officinal lily are planted in the same spring, namely 3 months, so that the florescence is concentrated in 5-8 months to form the staggered and well-layered landscape benefits.
The soil condition ratio in tombarthite ore deposit abandonment ground is poor, the utility model discloses a setting plant the cave and plant view flowers in planting the cave, can improve the survival rate of flowers, build tombarthite abandonment ground ecological landscape, rebuild soil texture improvement, vegetation, view construction comprehensive consideration, create land utilization new value, let the tombarthite mine abandonment ground take back new and beautiful.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. The ecological restoration system for the rare earth ore waste land is characterized in that the rare earth ore waste land is divided into a plurality of fields, an ecological retention zone and planting holes are formed in each field, the ecological retention zone is provided with a plurality of bent ways, retention and recycling pools are arranged at the bent ways and used for collecting and storing fertilizers lost in the fields, and the slope of the ecological retention zone is 1% -1.5%; the cross section of the ecological detention zone is of a U-shaped structure and sequentially comprises a cushion layer, a leguminous green manure seed layer and a non-woven fabric layer from bottom to top.
2. The ecological restoration system of a rare earth ore wasteland according to claim 1, wherein said bedding layer is composed of a natural porous adsorptive material and a wasteland raw soil.
3. The ecological restoration system of a rare earth ore wasteland according to claim 2, wherein said natural porous adsorptive material is diatomaceous earth.
4. The ecological restoration system for the rare earth ore wasteland according to claim 1, wherein the retention and reuse tank is made of HDPE impermeable membrane.
5. The ecological restoration system for rare earth ore wastelands according to any one of claims 1 to 4, wherein the width of the ecological retention zone is 0.3 to 0.5m, and the depth thereof is 0.15 to 0.25 m; the width of the excavation groove is 0.3-0.5 m, and the excavation depth is 0.25-0.35 m.
6. The ecological restoration system for the rare earth ore wasteland according to claim 1, wherein the cross section of the planting hole is trapezoidal, the planting hole comprises a non-woven fabric layer, an agriculture and forestry water retention agent layer and a matrix soil layer in sequence from bottom to top, and perennial flowers are planted on the matrix soil layer.
7. The ecological restoration system for rare earth ore wastelands according to claim 6, wherein said perennial flowers are further covered with a hay layer.
8. The ecological restoration system for rare earth ore wasteland according to claim 6, wherein the planting density of perennial flowers on said planting hole is 30-40 plants/m2The vervain is planted in the inner layer of the field, the coreopsis nigra, the officinal lily, the corn poppy and the senecio cineraria are planted in the peripheral edge strips of the field, and the white clover is planted in the field.
9. The ecological restoration system for the rare earth ore wasteland according to claim 1 or 6, wherein the planting hole has an upper opening width of 0.2 to 0.25m and a lower opening width of 0.15 to 0.2 m.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822276294.7U CN209861515U (en) | 2018-12-29 | 2018-12-29 | Ecological remediation system of rare earth ore waste land |
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| CN201822276294.7U CN209861515U (en) | 2018-12-29 | 2018-12-29 | Ecological remediation system of rare earth ore waste land |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112474790A (en) * | 2020-10-27 | 2021-03-12 | 江西农业大学 | Water and soil conservation ecological restoration method for rare earth tailings |
| CN116584198A (en) * | 2023-06-23 | 2023-08-15 | 甘肃昊洲土壤修复科技有限责任公司 | Soil improvement method for preventing soil acidification, alkalization and desertification |
-
2018
- 2018-12-29 CN CN201822276294.7U patent/CN209861515U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112474790A (en) * | 2020-10-27 | 2021-03-12 | 江西农业大学 | Water and soil conservation ecological restoration method for rare earth tailings |
| CN116584198A (en) * | 2023-06-23 | 2023-08-15 | 甘肃昊洲土壤修复科技有限责任公司 | Soil improvement method for preventing soil acidification, alkalization and desertification |
| CN116584198B (en) * | 2023-06-23 | 2024-02-13 | 甘肃昊洲土壤修复科技有限责任公司 | Soil improvement method for preventing soil acidification, alkalization and desertification |
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