57results about How to "Improve water and soil conservation effect" patented technology

The invention relates to an exposed slope ecological restoration construction method using fermented sludge as a medium. The exposed slope ecological restoration construction method comprises the steps of: paving ecological rods on a slope surface of a slope in a contour manner and fixing the ecological rods through anchor rods; after the pavement of the ecological rods, performing bidirectional geogrid pavement to enable the bidirectional geogrid to cover the slope surface of the whole slope, and fixing the bidirectional geogrid on the slope surface of the slope through the anchor rods; spraying an underlying substrate on the slope surface where the ecological rods and the bidirectional geogrid are paved to enable the underlying substrate to cover the whole slope surface and the outer surfaces of the bidirectional geogrid and the ecological rods; after the underlying substrate is basically solidified, spraying a seed layer to enable the seed layer to cover the whole underlying substrate. The provided method achieves very obvious water and soil conservation effects and remarkable ecological fixation function on the slope, simple construction process, easy implementation, high efficiency and good effects, is suitable for large-area application, and has an obvious effect of optimizing the ecological environment and long-term significance.

The present invention relates to a method for optimizing the topography and the geomorphology of a dump in a large opencast coal mine in the loess area. The method comprises: "soft base removal", "base gully filling", "smooth base blasting treatment", "base piling for skid resistance", "fan-shaped disposal and layered compaction", and other steps. According to the method provided by the present invention, based on the simulation of the original "plateau" geomorphology millions years ago in the loess plateau, the artificial landmine terraces mode of the traditional sloping land in the water and soil erosion area in the Loess Plateau are changed; and relying on the convenient conditions of the mining and moving soil, the large-scale earthwork is used to deploy and form the basin geomorphology to co-ordinate the hydrological topography, and micro-topography modification is used to reduce the generation of the surface runoff, so that under the premise of ensuring the stability of the dump, the geomorphology of the dump in the large opencast coal mine in the loess area is restored to the "plateau" geomorphology, and the foundation is provided for the restoration of ecosystems and biological diversity.

The invention discloses a vegetation type cement building block prefabricating and using method for water bank economic protection. The building block comprises a hollow lump hexahedron of which one side surface is at least provided with one cross through slot; the other five surfaces are provided with holes having different apertures and communicated with the inner cavity of the hexahedron; the top of the main body is an openable movable top cover; the top corner of every three surfaces is provided with a round ring buckle; when the building blocks are spliced up and down and left and right, the ring buckles are serially connected and locked together by a large ring buckle with an opening and closing device, thus forming the whole water bank into a whole and achieving considerable flexibility. The building block is formed by mixing vegetation type cement, crushed stone, sand and water through prefabrication and pouring. A composite medium is injected in the hollow inner cavity of the building block which is built at the water bank, the side surface, provided with the cross through slot, of the building block is of a waterward surface and can be planted with plants, and the medium in the inner cavity can provide fertilizer and purify water quality.

The invention provides a water erosion prevention system and method for the ecology of a slope of an abandoned rear-earth mine land. According to the system, erosion of the slope of the abandoned rear-earth mine land caused by a water body can be prevented and controlled by arranging an obstructing belt and intercepting belts; a little sandy soil scoured by a water flow can be prevented from entering the water body by arranging a permeable layer; meanwhile the water flow can be led out by a diversion channel; and further, by arranging vegetation layers, water and soil can be effectively conserved, the slope is reinforced, and the maintenance of ecological balance is facilitated. Since the system is employed in the method provided by the invention, the method can effectively prevent and treat the water erosion of the slope and recover the ecological environment of the slope.

The invention discloses a novel slope water interception and drainage ditch and a design method thereof. The novel slope water interception and drainage ditch is characterized by comprising a seepage layer, a ditch bottom layer and a water interception layer, wherein the seepage layer, the ditch bottom layer and the water interception layer form a groove structure; the seepage layer is located on the left side of the ditch bottom layer; the water interception layer is located on the right side of the ditch bottom layer; the ditch bottom layer is arranged on the lower parts or bottom ends of the seepage layer and the water interception layer; the seepage layer is composed of a mesh cage and particle fillers; and the mesh cage is filled with the particle fillers. In the practical application, the seepage layer is arranged, interflow can be effectively drained, and surface erosion and the diffusion path of non-point source pollution are cut off; slope surface runoff and the interflow are rapidly collected, and the drainage of the slope runoff is increased, so that useless slope runoff can be changed into available water sources, and the utilization ratio of water source is improved.

The invention discloses a building method for a farmland ecological drainage ditch preventing the ditch wall soil loss. By performing preliminary processing on an original drainage ditch, a water collecting well is arranged at the joint of a farmland drainage port and the ecological drainage ditch, and after being subjected to preliminary precipitation in the water collecting well, farmland runoff enters the ecological drainage ditch through a water outflow weir; on the basis of solidifying of holes reserved in the ditch bottom of the ecological drainage ditch and ditch wall sloping treatment, the ditch wall of the ecological drainage ditch is subjected to strengthening treatment by means of porous ecological drainage ditch side plates, and purifying plants are planted in vegetation planting holes reserved in the side slope and the bottom of the ecological drainage ditch; and finally, a water baffle is arranged on a drainage port of the ecological drainage ditch, and the farmland rainfall runoff is purified by the ecological drainage ditch and then enters a river. The building method for the farmland ecological drainage ditch preventing the ditch wall soil loss has the beneficial effects of being easy, convenient and practicable, capable of preventing the ditch wall soil loss, stable in structure, good in purifying effect, good in landscape effect and the like.

The invention relates to a method for the recovery of plant in the rock dome in northern areas, comprising the following steps: a. dome treatment: cleaning the dome, setting anchor bar, fixing the plastic sealed metallic netting in the anchor bar; b. choosing the plant species: choosing the plant adaptive to the local climatic condition, which are primarily the forge and leguminous plant, mixing the chosen seeds; c. allocation of base material: employing sandy loam soil, grass peat, straw, composite fertilizer, water, cement and water-loss reducer as base material, mixing the base material and preparing the stand-by base material; d. spraying the base material: spraying the base material into the rock dome equipped with metallic netting, adding the mixed seeds into the stand-by base material and then spraying it to the surface of the base material; e. repellent treatments: covering the spraying layer of base material with protective coating, curing the base material layer.

The invention discloses a technology for treating a construction dreg site and a side slope accumulation with vetiver grass. The method comprises the following steps: leveling the slope tops of the construction dreg site and the accumulation according to a certain gradient; backfilling planting soil on the slope tops after leveling; grading the slope surfaces and dressing; arranging a medium platform between the slope surfaces; forming transverse drainage ditches in the side edges close to the slope tops and the bottom of the slope surface at each grade; forming longitudinal drainage ditches along the ridges and valleys in order to connect the transverse drainage ditches to form a passageway; arranging concrete grid beams on the slope surfaces if the angles of the slope surfaces are not less than 45 degrees; planting vetiver grass in gaps of the grid beams or the slope surfaces without the grid beams, wherein the planting density of the vetiver grass is that the plant spacing is 12cm, the line spacing is 100cm, and 3 to 5 plants form one clump; planting crops in the slope tops and the medium platform. The technology has the beneficial effects that the dreg site treatment costs less, the water and soil conservation effect is good, and the ecological restoration can be achieved.

The invention discloses a method for ecologically restoring an abandoned sandpit. The method for ecologically restoring the abandoned sandpit comprises the following steps: a, smoothing the land; b, preparing seedlings; c, digging holes and preparing soil; d, planting vetiveria zizanioides; e, managing the vetiveria zizanioides; and f, postprocessing. In the same year, the abandoned sandpit can be enabled to increase the organic matter of the shallow soil layer by 35%, the soil stickiness by 44% (represented by the number of soil particles), the microbial community by 20% and the soil water fixing capability by 10%, and decrease the water and soil loss by 30% and the sand dust by 30%; in such a way, the abandoned sandpit can basically reach the arable degree within 3-5 years; the technique for ecologically restoring the abandoned sandpit provided by the invention mainly adopts biological measures and certain auxiliary engineering measures; therefore, not only are the soil nutrient components improved, but also a good water and soil conservation effect is realized; moreover, the manufacturing cost is lower; and in addition, a good ecological environment improvement effect and a good visual effect are realized as well.

The invention relates to a matrix special for greening and is made of Chinese herbal medicine pharmaceutical waste residue and preparation method thereof. The waste residue is the pharmaceutical residue from Chinese herbal medicine decoction pieces after being extracted with effective medical components. The matrix special for greening is obtained by that the pharmaceutical waste residue, alkali making waste residue and mushroom cultivating waste residue are mixed according to certain proportion and fully and evenly mixed after conditioner is added. The invention mainly aims at replacing prior non-renewable resources such as mineral wool and peat, etc. with pharmaceutical waste residues which is rich in cellulose, lignin and organic materials for making matrix special for greening. The material proportion of the invention is to make use of pharmaceutical waste residue and waste heat to produce quickly rotten, low cost and quality composting and realizes the using of organic solid waste in town, eliminates pollution to environment and waste of resources, further realizes the utility of social benefit, biological benefit and economic benefit and sustainable development.

The invention provides a method for preventing soil water erosion by means of juice of maize straw. The method includes the following steps of (1) extracting, wherein the juice is extracted from the maize straw, (2) applying, wherein the extracted juice of the maize straw is applied to the surface of soil and (3) standing, wherein the soil where the juice is applied stands in a drying environment. According to the method, the problem of how to provide a practical and effective method for preventing soil water erosion is solved.

The invention relates to the technical field of water conservancy projects, and discloses a water conservancy project slope protection device. The water conservancy project slope protection device comprises a slope protection plate, planting grooves are formed in the slope protection plate, sapling supporting mechanisms are arranged in the planting grooves, stabilizing mechanisms are arranged at the lower end of the slope protection plate, the sapling supporting mechanisms comprise elastic rods, rubber rings, water collecting tanks, special-shaped air bags, connecting pipelines, extrusion air bags, spring rods, first deformation air bags, second deformation air bags, connecting rods, metal sheets, vibration rods and vibration balls, the elastic rods are located in the planting grooves, four elastic rods are arranged in one planting groove, the four elastic rods are fixedly connected with the inner walls of the four sides of each planting groove respectively, the elastic rods are arranged in a bent mode, each rubber ring is fixedly connected with one ends of the corresponding four elastic rods, and rubber nets are fixedly installed among the four elastic rods. The water conservancy project slope protection device enables supporting plates to be stressed by memory metal rods to fasten soil, the water and soil loss degree is reduced, and the water and soil conservation effect is achieved.

The invention discloses a drought-resistant afforestation method for sabina przewalskii in a drought shallow mountainous area in order to solve the problem that survival rate of afforestation for sabina przewalskii in the drought mountainous area is low. The drought-resistant afforestation method comprises following steps of: A, soil preparation; B, collection of direct surface runoff: collecting an overland flow slope and selecting a plastic film or asphaltic felt to be laid on a slope; C, seedling transplanting: placing seedlings to centers of holes and backfilling soil, gently lifting seedlings for 1 to 2 centimeters after soil is filled such that roots are closely combined with soil; D, covering tree disks with grass: covering grass around cultivated seedling rootstocks within the range of 0.8 to 1.0 meter; and covering tree disks with grass such that tree disks covered with grass are concave. The drought-resistant afforestation method for sabina przewalskii in the drought shallow mountainous area has following beneficial effects: by adoption of methods such as flow concentration, water storage, soil preparation and grass coverage of tree disks, survival rate for afforestation of sabina przewalskii in the drought shallow mountainous area is increased; the population size of man-made forests for sabina przewalskii is increased; and an technical guarantee is provided for plantation of sabina przewalskii for affectation by broad application of local trees and landscaping, improvement on an ecological environment and enhancement of regional water conservation and water and soil conservation.

The invention discloses a combined protective slope. The combined protective slope mainly comprises a lower blanket zone positioned at a river embankment blanket and an upper blanket zone positioned on a river embankment slope top as well as a protective slope main body which spreads along the river embankment slope surface and is used for connecting the upper blanket zone to the lower blanket zone, wherein reverse-filtration non-woven geotechnical cloth spreads between the protective slope main body and the river embankment slope surface. The invention further discloses a construction methodof the combined protective slope, and the construction method comprises the following steps of: pouring the lower blanket zone on the site on the bottom of the river embankment slope surface, and pouring the upper blanket zone on the site on the top of the river embankment slope surface; spreading the reverse-filtration non-woven geotechnical cloth from the river embankment blanket to the river embanked slope top on the river embankment slope surface; spreading the protective slope main body; and planting green plants. The combined protective slope adopts an interlocking block as the protective slope main body, plants green plants to assist slope protection, is environmentally friendly, is low in cost, and is relatively simple in daily maintenance and management.

The invention discloses an improvement structure for a low-lying land of a sandy riparian zone in a cold area. The improvement structure is as follows: a trumpet-shaped opening is arranged between a main river channel and a riparian zone; the elevation of the opening is lower than an ordinary water level of a river; an inverted trapezoidal ecological ditch is dug along an original terrain with theopening as a starting point; foreign soil is neatly laid in the interior of the ecological ditch; hygrophilous vegetation is planted on the surface of the foreign soil; Salix brachypoda is planted inboth bank slopes of the ecological ditch by cutting or transplanting; trees are planted on the edges of the ecological ditch; an inverted trapezoidal ecological pond is formed at the terminal position of the ecological ditch by utilizing an original dish-shaped low-lying land; foreign peat boggy soil are arranged at the bottom of the ecological pond; aquatic vegetation is planted at the bottom ofthe ecological pond; the hygrophilous vegetation is planted in the waterfront area of the bottom of the ecological pond; and the Salix brachypoda is planted in the bank slopes of the ecological pondby cutting or transplanting. The structure provided by the invention can improve sandy soil and vegetation habitat and conserve water and soil.

The invention discloses a method for preparing an ecological slope protection substrate from dredging silt. The method comprises the steps that 10-15 parts of dried dredging silt, 10-15 parts of surface soil and 0.15 part of a water-retaining agent are prepared first, all the materials are mixed and stirred to be uniform, and then a base fertilizer is applied to obtain a mixture B; the mixture B is laid on the slope surface, and plant seeds A which have been well soaked are uniformly broadcasted on the surface of the mixture B and covered with the surface soil which is clay; thorough wateringis conducted, periodical maintenance is conducted, and after the plant seeds grow to be 10-15 cm high, the ecological slope protection substrate is obtained. By means of the method, the aims of reduction and harmless treatment of existing dredging silt are achieved. The method is simple and reliable, low in production cost and capable of improving the mechanical property of the substrate, the growth of slope protection plants is promoted by using nitrogen, phosphorus and other nutrient substances rich in the silt, and the aim of new recycling of the dredging silt is achieved.

The invention provides a method for regreening bare land on the island mountain top. According to the method, regreening of the bare land on the island mountain top is achieved by combining drainage with plant planting, drainage is achieved by arranging drainage ditches from the mountain top to the boundary of the bare land, plant planting is planting of herb, shrubs and arbor, the herb is pennisetum purpureum, the shrubs are one or more of common melastoma herbs, zanthoxylum avicennae, strophanthus divaricatus or rhodomyrtus tomentosa, and the arbor is acacia confusa in China. According to the method, a drainage measure is adopted to limit the water and soil loss area of the bare land on the island mountain top, and is combined with a plant planting measure, so that the bare land on the island mountain top is successfully greened, the water and soil conservation capability of the bare land on the island mountain top is greatly improved, and the method has considerable necessity for improving the environment of the bare land on the island mountain top.