5results about How to "Restoring ecological functions" patented technology

The invention relates to a restoration method of a wetland ecosystem, and aims to improve the biodiversity of a wetland and restore and enhance the ecological function of the wetland through systematic measures. The method comprises the following steps: firstly, evaluating the current condition of the wetland, and identifying specific or endangered species and alien invasive species; secondly, by introducing or protecting specific animal and plant species, the natural habitat is recovered, and the biodiversity of the wetland is improved; thirdly, the water quality and soil conditions of the wetland are improved by adopting technologies such as hydrological regulation and control and vegetation restoration; fourthly, the connectivity of the interiors of the wetlands and surrounding habitats is enhanced, and species migration and gene exchange are promoted. By means of the measures, a damaged wetland ecosystem can be effectively restored, key functions such as water quality purification, flood regulation and carbon storage of the wetland ecosystem can be restored, meanwhile, endangered species are protected, and the ecological value and landscape aesthetics of the wetland are improved.

The invention relates to an ion type rare earth ore tailing sandy land soil improvement structure and an improvement method, and belongs to the technical field of ecological restoration. The ion type rare earth ore tailing sandy land soil improvement structure sequentially comprises a humus layer, a surface soil layer and a subsoil layer. The subsoil layer comprises rare earth ore tailing sandy land soil and a slow-release modifier; the surface soil layer comprises the rare earth ore tailing sandy land soil, a slow-release modifier and a quick-acting modifier; the slow-release improver comprises agricultural and forestry wastes, and the quick-acting improver comprises livestock and poultry manure, lime and a compound fertilizer. According to ecological function characteristics of the soil, aiming at physical characteristics and nutrient content of the soil and specific rare earth and aluminum toxicity pollution of a mining area, the soil layer is remolded by using different dosages and different types of improvers, so that the restoration of a local damaged soil ecological system is accelerated, and the ecological function restoration of the soil in the rare earth ore tailing sand land is realized.

The invention relates to a water source water quality purification system for recovery of a natural bank zone of a river in an arid region, the water source water quality purification system comprises a hydraulic power supply unit, a water quality purification unit and a river bank remodeling unit which are sequentially connected in series, and water flow sequentially flows through the hydraulic power supply unit, the water quality purification unit and the river bank remodeling unit and then flows to an external river channel from the river bank remodeling unit; the hydraulic power supply unit comprises a sewage treatment plant and a water pumping station, the water quality purification unit comprises a soil percolation system and an ecological purification pond, the river bank remodeling unit comprises a floodplain, the floodplain is close to a river channel, and the floodplain is located between the water quality purification unit and the river channel; all structures in the water source water quality purification system are connected through a water diversion channel, and the water diversion channel between a water quality purification unit and a river channel penetrates through a flood plain. The soil percolation system comprises a multi-soil-layer percolation mechanism, at least one or more water distribution pipes are arranged in the multi-soil-layer percolation mechanism, and each water distribution pipe is correspondingly connected with a plurality of water quality strengthening and purifying grids.

This invention relates to the field of soil pollution control technology, specifically to a microbial-phytoremediation method for heavy metal contaminated soil in mining waste sites. It includes a supporting base layer, on which a leachate collection layer, a heavy metal passivation and isolation layer, a microbial reinforcement layer, and a plant growth layer are sequentially arranged. This invention organically integrates multi-layered structural units to form a spatially ordered structure of leachate drainage—heavy metal passivation—microbial loading—plant growth. It employs immobilized functional microbial agents and embeds multi-parameter sensing devices to establish a monitoring-feedback-control closed-loop system. Simultaneously, hyperaccumulating plants are planted and inoculated with arbuscular mycorrhizal fungi, achieving a shift from an open-loop passive mode to a closed-loop active collaborative mode, avoiding problems such as delayed remediation response, poor synergy, and insufficient long-term stability.

The invention discloses an environmentally friendly dredging ship for purifying water quality, comprising a hull, a high-pressure aeration water quality purification system, an adjustable aeration system, a mud-water separation system, an aeration output system and a power boat, wherein the power boat is arranged at the tail end of the hull, and the power boat is connected to the hull to drive the hull to travel in the water area; the high-pressure aeration water quality purification system and the adjustable aeration system are installed on the hull, and the adjustable aeration system is connected to the high-pressure aeration water quality purification system, and the high-pressure aeration water quality purification system and the adjustable aeration system are both used to aerate the bottom of the water to achieve the purpose of purifying the water quality; the mud-water separation system is installed in the hull, and the mud-water separation system is used to suck the mud-water mixture on the bottom of the water and then separate the mud and water. The dredging ship is mainly used for purifying water quality in the water area, has the advantages of good water quality purification effect, and meets the requirements of bottom water purification.