CN-121972505-A - Partition reinforced type heavy metal contaminated soil composite plant growth bag repairing method

CN121972505ACN 121972505 ACN121972505 ACN 121972505ACN-121972505-A

Abstract

The invention relates to the technical field of plant growth bag repair, and discloses a partition reinforced heavy metal contaminated soil composite plant growth bag repair method, which comprises the following steps: s1, a multidimensional partition evaluation and reference database construction stage; s2, customizing a partition functional composite plant-growing bag; s3, accurately laying the plant-growing bags through garden layout design; s4, ecological maintenance and gardens maintenance; s5, a multidimensional dynamic monitoring and scheme iterative optimization stage; the invention aims to provide a partition reinforced type heavy metal contaminated soil composite plant growth bag repairing method, which aims to solve the problems that in the existing soil repairing method, soils with different pollution degrees and different hardening conditions are mostly treated by a unified repairing scheme, the differential treatment requirements of various soils are difficult to match, and the repairing of partial areas is insufficient and the resources of partial areas are wasted.

Inventors

CAO ZHEN
ZHANG YICHI
ZHANG KEYI
GAO YUJIE
DU KEXIN

Assignees

操振

Dates

Publication Date: 20260505
Application Date: 20260120

Claims (6)

1. The partition reinforced type heavy metal contaminated soil composite plant growth bag repairing method is characterized by comprising the following steps of: S1, in a multi-dimensional partition assessment and reference database construction stage, a three-dimensional reference map is generated by detecting the heavy metal content and compactness of soil and integrating related data, and Qichun channels of medicinal material growth demand parameters are associated; S2, preparing a composite degradation bag body in a zoning functional composite plant-growing bag customization stage, customizing filling components of a functional layer according to pollution gradients, and processing the composite degradation bag body into a plant-growing bag with standardized specifications; S3, in a stage of garden layout design and accurate plant growth bag laying, a three-level layout scheme is formulated based on a three-dimensional reference map, plant growth bags in different partitions are laid by using a special tool set, and an ecological fixing device is matched; S4, in the ecological maintenance and gardens maintenance stage, preparing a microorganism activating solution and a humic acid solution, spraying at regular time, preparing a garden pruning tool set, and building a rainwater collection and composting supporting facility; s5, in the multi-dimensional dynamic monitoring and scheme iterative optimization stage, the detection equipment group is used for monitoring the parameters related to soil and plants, and the formula and maintenance scheme of the plant growth bags are adjusted based on a quantization formula.
2. The method for repairing the partitioned reinforced heavy metal contaminated soil composite plant-growing bag according to claim 1, wherein the multi-dimensional partitioned evaluation and reference database construction stage comprises the steps of measuring the content of heavy metals such as lead, cadmium and mercury in soil by adopting a portable heavy metal detector, measuring the value of the soil compactness by using a soil compactness meter, integrating three types of data of the degree of heavy metal contamination, the soil hardening grade and the soil fertility level by using a three-dimensional reference map generation unit, and generating a visual three-dimensional reference map, and associating Qichun channels of medicinal material growth requirement parameters.
3. The method for repairing the partition reinforced type heavy metal contaminated soil composite plant-growing bag according to claim 1, wherein the customization stage of the partition functional type composite plant-growing bag comprises the steps of mixing and pressing straw fibers and biochar according to the proportion of 7:3, and taking the straw fibers and the biochar as a plant-growing bag basic carrier; the partition dedicated functional layer filling unit comprises a composite system formed by a microbial agent, an organic matrix and plant seeds, wherein the microbial agent is screened and domesticated from Qichun local soil, the core concentration is C=10 8 CFU/g, the C is the effective viable bacteria concentration of the microbial agent, the unit is colony forming unit/g, the heavy pollution area formula is that local nitrogen fixing bacteria and heavy metal passivating bacteria are compounded according to 1:1, humus accounts for 60%, each bag of centipede seeds is 5-8 grains, the medium pollution area formula is that nitrogen fixing bacteria and phosphate solubilizing bacteria are compounded according to 3:2, the decomposed Chinese medicinal dregs account for 50%, each bag of red sage root seeds and blackberry seeds is 3-5 grains, the light pollution and hardening area formula is single nitrogen fixing bacteria, the compost decomposed matter accounts for 40%, each bag of paeonia and peony seeds is 2-3 grains, the standardized specification forming device processes the composite plant growth bag into 30cm multiplied by 40cm specification, the filling density is controlled to be 1.2g/cm 3 , 3 pore diameters of the surface of the bag are reserved, and the outer layer of the bag is provided with degradable non-woven fabric wrapping ventilation holes.
4. The method for repairing the composite plant-growing bags of the partitioned reinforced heavy metal contaminated soil is characterized in that the stage of garden layout design and plant-growing bag accurate laying comprises the steps of making a three-level layout scheme of banded isolation, group mixing and flower border fusion by a partition layout planning unit based on a three-dimensional reference map, laying and collocating dandelions and february roots in a 5m bandwidth mode along the edge of a medicine field in a severely contaminated area, inserting and planting dwarf lilyturf roots in a moderately contaminated area at a distance of 50cm, fusing a hardened area with a raw medicinal material field according to a flower border design concept to form a medicinal material, flowers and ground cover multilayer structure, and arranging an ecological isolation pile at a partition border by using a degradable grid fixing net with a pore diameter of 5cm in an ecological fixing device by a plant-growing bag laying tool set.
5. The method for repairing the composite plant growth bags of the partitioned reinforced heavy metal contaminated soil is characterized by comprising the steps of proportioning deionized water and brown sugar fermentation liquor according to the concentration of 5% by a microorganism activating liquor preparation device, preparing natural humic acid solution according to the concentration of 0.8% by a humic acid solution spraying device, preparing a timing spraying system, arranging a water collecting pool with the volume of not less than 10m 3 by a garden pruning tool set and a rainwater collecting and composting matching facility, configuring an ecological compost box by matching a filtering device and a drip irrigation pipe network, adopting an aerobic compost mode, and adopting a compost maturity calculation formula as follows: Wherein the method comprises the steps of The unit of the compost maturity is, The unit is the initial organic matter content of the compost, The unit is that D is more than or equal to 30% and the organic matter content after composting is equal to or higher than 30%.
6. The partition reinforced type heavy metal contaminated soil composite plant bag repairing method is characterized in that the multidimensional dynamic monitoring and scheme iterative optimization stage comprises a soil parameter detection equipment set, a plant growth state monitoring unit, an optimization decision unit and a heavy metal repairing efficiency formula, wherein the soil parameter detection equipment set comprises a soil organic matter tester, a pH meter, a granule structure analyzer and a heavy metal rapid detector, the soil humidity and pH value real-time sensor is equipped, the plant growth state monitoring unit records the plant height, the survival rate, the yield and the quality component content of medicinal materials, the flowering duration and the coverage rate of landscape plants are counted, the optimization decision unit adjusts the plant bag formula and the maintenance scheme based on monitoring data, and the heavy metal repairing efficiency formula is as follows: Wherein the method comprises the steps of The unit of the repair efficiency of heavy metal is, In order to ensure that the heavy metal content unit is mg/kg before repair, For the heavy metal content unit after restoration is mg/kg, the soil fertility improvement rate formula is: wherein The unit of the soil organic matter lifting rate is, The unit of the organic matter content of the soil before restoration is, The content of organic matters in the restored soil is in percent.

Description

Partition reinforced type heavy metal contaminated soil composite plant growth bag repairing method Technical Field The invention relates to the technical field of plant growth bag repair, in particular to a partition reinforced type heavy metal contaminated soil composite plant growth bag repair method. Background The soil composite plant growth bag is an environment-friendly treatment carrier with the functions of focusing ecological restoration and multifunctional cooperation, a bag body foundation is formed by degradable base materials, a composite functional layer integrating microbial agents, organic matrixes and plant seeds is filled in the soil composite plant growth bag without depending on chemical agents, the soil structure and pollution restoration problems can be improved pertinently through the synergistic effects of natural degradation of the carrier, the soil state regulation of microorganisms and the soil fixation and fertilization of plant roots, meanwhile, the application scene requirements can be combined, the added values of plant planting, landscape construction and the like are considered, and the soil composite plant growth bag is an integrated tool with practicability and environment friendliness in soil ecological treatment; The existing soil restoration method is mostly characterized in that the soil with different pollution degrees and different hardening conditions is handled by a unified restoration scheme, and the differential treatment requirements of various soils are difficult to match, so that the restoration of partial areas is insufficient and the resources of partial areas are wasted. Disclosure of Invention The invention aims to provide a partition reinforced type heavy metal contaminated soil composite plant growth bag repairing method, which aims to solve the problems that in the prior art, the existing soil repairing method is mainly used for coping with soil with different pollution degrees and different hardening conditions by a unified repairing scheme, and the differential treatment requirements of various kinds of soil are difficult to match, so that the repairing of partial areas is insufficient and the resources of the partial areas are wasted. In order to achieve the above purpose, the present invention adopts the following technical scheme: a partition reinforced type heavy metal contaminated soil composite plant growth bag repairing method comprises the following steps: S1, in a multi-dimensional partition assessment and reference database construction stage, a three-dimensional reference map is generated by detecting the heavy metal content and compactness of soil and integrating related data, and Qichun channels of medicinal material growth demand parameters are associated; S2, preparing a composite degradation bag body in a zoning functional composite plant-growing bag customization stage, customizing filling components of a functional layer according to pollution gradients, and processing the composite degradation bag body into a plant-growing bag with standardized specifications; S3, in a stage of garden layout design and accurate plant growth bag laying, a three-level layout scheme is formulated based on a three-dimensional reference map, plant growth bags in different partitions are laid by using a special tool set, and an ecological fixing device is matched; S4, in the ecological maintenance and gardens maintenance stage, preparing a microorganism activating solution and a humic acid solution, spraying at regular time, preparing a garden pruning tool set, and building a rainwater collection and composting supporting facility; s5, in the multi-dimensional dynamic monitoring and scheme iterative optimization stage, the detection equipment group is used for monitoring the parameters related to soil and plants, and the formula and maintenance scheme of the plant growth bags are adjusted based on a quantization formula. The technical scheme is further improved in that the multi-dimensional partition assessment and reference database construction stage comprises the steps of measuring the content of heavy metals such as lead, cadmium and mercury in soil by adopting a portable heavy metal detector, measuring the value of the soil compactness by using the soil compactness meter, integrating three types of data of heavy metal pollution degree, soil hardening grade and soil fertility level by using a three-dimensional reference map generation unit, generating a visual three-dimensional reference map, and associating Qichun channels of medicinal material growth demand parameters. The technical scheme is further improved that the customizing stage of the partition functional composite plant-growing bag comprises the steps of mixing and pressing straw fibers and biochar according to the proportion of 7:3, and taking the straw fibers and the biochar as a plant-growing bag basic carrier; the partition dedicated functional layer filling unit comprises a composite