321 results about "Ecological rehabilitation" patented technology

The invention belongs to the technical field of livestock breeding and specifically relates to an ecological method of breeding chicken by planting grass under trees. The method includes that a fine forage grass breed which is shade-tolerant, trampling-resistant, strong in stress resistance and applicable to being planted in the forest is selected, and a forest land for grazing the chicken is modified to form a grassland under the trees for grazing the chicken; a contour grass and shrub zone in a stocking land is used for planting the grass, a chicken house is built in the middle of the grassland under the trees for grazing the chicken, zone division is performed for rotation grazing, and zones are separated by biological fences; and Chinese herbal plants are sowed in rotation grazing zones so that the grazed chicken can freely ingest the plants. A scientific evidence is provided for obvious economic benefits and ecological benefits which are achieved by means of rapid development of domestic fowls and effective ecological rehabilitation, wherein the domestic fowls of Hetian chicken and the like are applicable to stocking in forestland. By means of the model for breeding the chicken, high economic benefits are created, parts of the economic benefits are used for investing development of ecological chicken breeding model, and the created economic benefits and the development of ecological chicken breeding model are combined for creating better benefits, and accordingly, a virtuous cycle is achieved, ecological balance is kept, and the sustainable development is effectively achieved.

The invention discloses a rapid ecological restoration method for rock-soil side slopes, and relates to the field of ecological management for the rock-soil side slopes. The rapid ecological restoration method includes: (1) cleaning a rock-soil side slope; (2) paving a high-tensile net; (3) preparing basic materials for vegetation growth; (4) allocating vegetation, mixedly planting seeds and grass blades of shrubs and herbage plants endurable to draught and infertility and selecting rock-soil side slope protective Bermuda grass blades; (5) subjecting the vegetation to spray-planting; and (6) maintaining and managing. Since the rock-soil side slope protective Bermuda grass blades are selected to protect the rock-soil side slopes, the rapid ecological restoration method is efficient and rapid; the basic materials for the vegetation growth are easy to obtain, simple to prepare, scientific to prepare, capable of effectively meeting requirements on nutrient and moisture of the vegetation, beneficial to flourishing and long-term growth of the vegetation and the like; and the herbage plants and the shrubs endurable to draught and infertility are selected as the vegetation to be planted mixedly, so that the rapid ecological restoration method is good in landscape allocation effect. The rapid ecological restoration method is applicable to ecological restoration in earth-rock mountain regions, and is particularly beneficial to stability of eco-fragile regions with bare rocks.

The present invention discloses one kind of nanometer composite water retaining agent with slow released fertilizer function and its preparation process. The nanometer composite water retaining agent is prepared with organized attapulgite clay, humic acid and acrylic acid as the main material, and through adding initiator and cross-linking agent, graft copolymerization and cross-linking in water solution, washing, drying and crushing. The nanometer composite water retaining agent has distilled water absorbing capacity of 300-600 g/g, and possesses wide application foreground in water saving agriculture, ecological restoring, etc.

The invention discloses a method for comprehensive treatment of a town river way. The method comprises exogenous pollution control: sewage draining outlet pretreatment and branch surge pretreatment; endogenous pollution removal: bottom mud pollutant treatment and biological purification of polluted water; in-situ remediation of a river channel ecological system: ecological restoration of aquatic plants and restoration of aquatic animals; and supplemented feeding of an efficient microbial agent and ecological restoration monitoring of the river channel. A staged treatment principle is adopted for the method for comprehensive treatment of the town river way, conditions are created positively to gradually reduce river channel pollution; through the exogenous pollution control, the endogenous pollution removal, the in-situ remediation of the river channel ecological system, later period maintenance and ecological regulation and the like, a water system is made smooth, the river channel is made clean, the ecological system is established artificially, the self-cleaning capacity of the river channel is restored gradually, healthy water circulation of the river channel is achieved, biodiversity is promoted, and virtuous circle of the town and country environment and the ecological system is promoted.

The invention relates to a bottom spray-seeding substrate containing fermented sludge and a preparation method thereof. The bottom spray-seeding substrate containing fermented sludge comprises: fermented sludge, an organic matter, loam, a soil water-holding agent and a binder. The bottom spray-seeding substrate containing fermented sludge provided by the invention can improve the soil structure, and also can improve soil fertility, the water holding capacity of soil and ion exchange capacity, thereby creating a soil environment suitable for plants. With good air permeability and water holding capacity, the bottom spray-seeding substrate containing fermented sludge is rich in organic matters, and provides good environment and nutrients for rapid growth of plants. At the same time, fermented sludge is employed to replace traditional peat to change sludge into things of value, thus improving resource development and utilization of sludge, reducing the cost of ecological rehabilitation projects, creating huge environmental and social benefits, also creating objective economic benefits for enterprises, and promoting the development of circular economy.

The present invention utilizes fungal spore mass or hyphal fragments in landscaping cloths, fiber substrates, paper products, hydroseeders and agricultural equipment. The fungi may include saprophytic fungi, including gourmet and medicinal mushrooms, mycorrhizal fungi, entomopathogenic fungi, parasitic fungi and fungi imperfecti. The fungi function as keystone species, delivering benefits to both the microsphere and biosphere. Such fungal delivery systems are useful for purposes including ecological rehabilitation and restoration, preservation and improvement of habitats, bioremediation of toxic wastes and polluted sites, filtration of agricultural, mine and urban runoff, improvement of agricultural yields and control of biological organisms. The invention allow for a variety of methods and products including the use of cardboard boxes as a delivery system for fungi with or without the combination with plant seeds for starting gardens, for controlling insects, or for the process of ecological recovery.

The invention relates to a method for planting sunken plants in a large area and a device thereof which can be applied in a water body and bottom material ecological rehabilitation project of a lake, a rive and a city river way. By the method and the device, various sunken plants can be conveniently and effectively planted in various water body bottom material environments and rapid growth and breeding of the sunken plants planted in new water body are facilitated. Specifically, the planting device is a cuboid iron box made of stainless steel sheet iron; the lateral part of the iron box is formed by four pieces of identical sheet iron; the bottom part is formed by four pieces of triangular sheet iron and every piece of sheet iron is connected with four edges of the bottom part by hinges; the vertex angles of the four pieces of triangular sheet iron are all provided with a round hole and the holes can overlap in the center of the bottom part; two iron bars are crossly connected at the top part of the iron box and the junction is provided with a round hole; an iron bar is hung in the round hole, and the iron bar is connected with a steel wire and can move up and down; the four corners of the top part of the iron box are connected together by four iron wires.

The invention provides a composite material which uses nanometer bubbles to rapidly eliminate lake algae bloom and repair anaerobic substrate sludge. The composite material repairs anaerobic substrate sludge, increases the oxidation-reduction potential of the substrate sludge and the dissolved oxygen level of the water body while rapidly eliminating algae blood in a large area and increasing the transparency of the water body. The nanometer bubbles are oxygen nanometer bubbles, ozone nanometer bubbles or air nanometer bubbles. Natures of nanometer bubbles such as quantity, size, density and the like can be adjusted and controlled with a particular method. The invention also provides a method for using the composite material to repair the lake and anaerobic substrate sludge, which comprises that a mechanical method is used for spreading or spraying the composite material onto the lake surface, thus simultaneously finishing the algae bloom removal in the large area, increasing the transparency of the water body, repairing the anaerobic substrate sludge, increasing the dissolved oxygen level of the water body, and providing a good environment for the rapid growth of submerge vegetation and ecological restoration of the eutrophication water body; and the method has ecological security and long effect of the lake treatment.

A system and method for restoring wetland habitats and providing a platform on which indigenous and transplanted plant species can thrive. Water from a source, such as, stormwater run-off is captured and filtered through a combination of sand berms and riffle weirs to a series of aquatic beds, thus creating nutrient-rich environment.

The invention relates to a plain area urban river network water circulation regulation and control method based on an ecological restoration target, and the method comprises the steps: building a water volume-hydrodynamic force-water quality-water ecological index system through the investigation of the basic conditions of an urban river network and taking the aquatic organism diversity as the basic target of the urban river network water ecological restoration; constructing a river network hydraulics-water quality-water ecology refined simulation model, optimizing a flowing water engineeringregulation and control scheme by utilizing a hydrodynamic force-water quality simulation result of each scene scheme, constructing an urban river network large circulation system, and adjusting a section structure of a local end river segment to realize local small circulation; and comprehensively evaluating the flood control safety, the environment improvement benefit and the influence on the water supply source of the regulation and control scheme. Under an existing engineering system, a flowing water source and kinetic energy of the flowing water source are fully utilized, dispatching of hydraulic engineering such as gates and pumps serves as a main way, ordered movement of inland river water flow is promoted, and the inland river self-cleaning capacity is recovered and improved.

Provided is an ecological restoration method of an iron mine steep slope waste rock field in a northern area. The soil ecological restoration method includes the following steps that fish scale pits are dug in a waste rock field steep slope from top to bottom, and a small platform is built under every two rows of fish scale pits; a stone protection dam is built on a slope toe of the steep slope waste rock field; artificial matrixes are buried in the fish scale pits, and the small platforms are covered with the artificial matrixes which are 0.5 m thick; the artificial matrixes are composed of urban sludge, river bottom sediment, corn straw, coal ash, fired coal slag and sawdust; the vegetation plant modes are sequentially arranged as following, the fish scale pits in the slope are in a shrub and grass planting mode, the small platforms are in a shrub, glass and vein planting mode, and the stone protection dam below the slope toe is in an arbor, shrub and grass planting mode. The method can effectively prevent rock steep slope collapse, improve the soil structure of waste land and quickly restore a vegetation ecological system.

The invention relates to a reinforced ecological concrete revetment and belongs to the field of revetment engineering, geotechnical engineering and ecological rehabilitation projects. The reinforced ecological concrete revetment comprises a revetment top, a revetment surface and a revetment toe, wherein the revetment top is provided with a concrete column prefabricated hook pile; the revetment surface comprises nutritional geotechnical cloth, lower layer ecological concrete, a geogrid, upper layer ecological concrete, artificial casing soil and environment protecting plants in sequence from bottom to top along a direction vertical to the revetment surface; the nutritional geotechnical cloth is hung on the concrete column prefabricated hook pile; the revetment toe is dug to form a groove; filler is paved in the groove and is compacted. According to the reinforced ecological concrete revetment disclosed by the invention, the ecological concrete and the geogrid made of a flexible material are alternately compressed, and are combined into a whole, so that the crack resistance and the settling resistance of the revetment engineering are enhanced; the nutritional geotechnical cloth not only has a reverse filtering function but also is in favor of the ecological protection on roots and prevention on water and soil loss, and therefore the erosion resistance and the stability of the revetment engineering are greatly enhanced.

The invention provides a comprehensive sand beach protection system and an ecological sand beach restoration method and relates to the field of coastal ecological environmental treatment. The method comprises the steps that firstly, a coastal ecological protective embankment is formed by sequentially splicing multiple concrete blocks on the sea beach between a protective object and the ocean and is arranged along a coastline; secondly, soil improvement is conducted on the area behind the coastal ecological protective embankment by adopting the mode of changing sand with soil to form an artificial mud flat; thirdly, mangrove forests are planted on the artificial mud flat, and a mangrove forest protection net is arranged around the mangrove forests, wherein the density of the mangrove forests is 5000-7500 plants/hm<2>. By the adoption of the method, the comprehensive sand beach protection system consisting of the coastal ecological protective embankment, the artificial mud flat, the mangrove forests and the protection net and integrating wave prevention, sand transportation and an ecological mangrove forest system is established, effective restoration of the opened sand beach mangrove forests is achieved, and coastal typhoons, waves and ecological environment are comprehensively treated by adopting measures according to local conditions.

The invention method relates to a method for sieving vegetation recovery species, and belongs to the technical field of biological recovery. According to the method, an index system for sieving the recovery species of wetlands is established, the grading standard and weight of each index are determined, and attribute data of alternative species obtained by the conventional ecological analytical method and literature survey analytical method is graded comprehensively to sieve the recovery species of the wetlands aiming at different sites and recovery targets. The invention provides a special easy, scientific and objective comprehensive evaluation method for sieving the recovery species of the wetlands.

The invention discloses a quick ecological rehabilitation method for a steep rock slope. The quick ecological rehabilitation method comprises the following steps of: manufacturing metal net cages; filling stones in the metal net cages, wherein the particle size of each stone is required to not be smaller than the size of grids of each metal net cage; setting a planting groove in the upper surface layer of the stones; paving a layer of geotextile on the surface of the planting groove and then filling planting soil in the planting groove; covering net cover plates of the metal net cages; stacking the metal net cages on a foundation trench of the steep rock slope layer by layer from low to high; and connecting the metal net cages in a twisting way; and planting plants in the planting groove and conventionally curing the plants. The quick ecological rehabilitation method is a method for combining the metal net cages with planting groove afforestation, and thereby the aims of quickly protecting the slope and realizing the ecological rehabilitation effect are achieved; different from a traditional rigid structure (concrete and stone masonry), the quick ecological rehabilitation method has the characteristics of water permeability, durability, flexibility, high construction efficiency, environment friendliness, favorable afforestation effect and the like and is especially suitable for landscape construction.

The invention provides an ecological rehabilitation promoting snow-melting agent and a preparation method thereof .The snow-melting agent is prepared from, by mass, 10-30 parts of polyaspartic acid, 30-50 parts of humic acid, 10-30 parts of acetate and 0-20 parts of chlorine salt .Firstly, humic acid is prepared according to the mass proportion, potassium permanganate and 30% hydrogen peroxide are added, and a combined pre-oxidation reaction is conducted; after the combined pre-oxidation reaction is finished, acetate and chlorine salt are added, stirred and dissolved, and the mixture is cooled to room temperature; polyaspartic acid is added, and after the materials are evenly mixed, the mixture is directly contained in a barrel to serve as a liquid snow-melting agent or is sprayed to be prepared into a solid particle snow-melting agent .The snow-melting agent can be used for melting snow and ice, stimulating plant growth and reducing harm of chlorine salt snow-melting agents left in soil to the environment .Besides, biological degradation can be achieved, a preparation process is simple, production cost is low, and the snow-melting agent is suitable for industrial application.

The invention relates to a river-course system structure for water body purification and ecological restoration. The river-course system structure comprises an ecological filtering barrage unit, a gravel gabion ecological barricade unit and a river-bottom biological habitat unit, wherein the ecological filtering barrage unit, the gravel gabion ecological barricade unit and the river-bottom biological habitat unit are arranged on a river-bed base in sequence from front to back along the water flow direction of a river course; the ecological filtering barrage unit comprises a dam body which is arranged in the way of intercepting the river course, an ecological filtering layer charged inside the dam body, a water inlet arranged at the upper part of the dam body, and at least two water outlets arranged at the back lower part of the dam body; the river-bottom biological habitat unit comprises a gravel-construction waste basal layer, a pebble-modified bottom mud layer and a planting soil layer which are paved in sequence from bottom to top; a submerged plant is planted in the planting soil. By using the river-course system structure provided by the invention, pollutants such as a particulate matter, a macromolecular organic matter, COD (Chemical Oxygen Demand), BOD (Biochemical Oxygen Demand), N, P and the like in a river current can be effectively removed; a river-current ecological system of a dredged river reach can be recovered.