77results about How to "Prevent soil erosion" patented technology

The present invention relates to compositions comprising a plant material and methods for using the same. The methods include extracting or removing a substance from a substrate, or remediating a substrate from a substance. The substance can comprise a hydrocarbon-containing substance, a protein, lipid, wax, fatty acid or fatty alcohol, or a combination thereof.

A method of constructing an internally braced geosynthetic-reinforced earth zone and slope facing system uses a single-layered, three-dimensional, high-profile pyramidal-woven geotextile fabric in conjunction with a bracing assembly of bars inserted into the geotextile weave and bracing an upright fold of the geotextile fabric with soil backfill to form an upright geotextile layer or lift in a plurality of wrapped, reinforcement layers of an earth wall or steepened slope. The wrapped geotextile reinforced earth wall or slope system can be internally seeded during construction or externally hydroseeded post-construction to form a vegetated facing. The wrapped geotextile lifts can be sandwiched around longer, supplemental geogrids that extend the width of the reinforced zone for taller slopes and walls.

Provided herein are compositions and methods for producing transgenic plants. In specific embodiments, transgenic plants comprise a construct comprising a polynucleotide encoding microRNA167 (miR167), or precursor thereof, operably linked to a plant pericycle-specific promote, wherein the miR167 is ectopically overexpressed in the transgenic plants, and wherein the promoter is optionally a constitutive or inducible promoter. In some embodiments, the transgenic plant has an improved agronomic or nutritional characteristic when cultivated in nitrogen-rich conditions as compared to a wild type plant cultivated in the same conditions. Also provided herein are commercial products (e.g., pulp, paper, paper products, or lumber) derived from the transgenic plants (e.g., transgenic trees) produced using the methods provided herein.

The invention relates to a rain collection purification system for preventing water and soil loss caused by rain wash in mountains. According to the terrain of a mountain, a river and a slope, two or more sets of rain collection purification systems are designed from the top of the slope to the bottom of the slope; a flume in one single set of rain collection purification system is arranged in the mountain and submerge-fast plants are planted; a rainwater collecting tank is arranged at the middle part of each flume; one row of willow branch bundle row piles are piled below an effluent weir of each flume; geotextile is paved inside the piles; epicormic willow branches are bundled into living branch bundles; gravel purification filtering media are filled in the living branch bundles; the living branch bundles are arranged between the effluent weir of each flume and the willow branch bundle row piles; the living branch bundles are totally covered with soil and ecological bricks are paved so as to form a side slope plain stage; a water outlet of each rainwater collecting tank is connected with gravity sprinkling irrigation equipment by a PVC (Poly Vinyl Chloride) pipe. The rain collection purification system has the advantages that water and soil loss and water flow non-point source pollution which are caused by rain wash in the mountains can be effectively prevented; the flow rate is reduced and intercepted; most of water enters the water collecting tanks; overflowing runoff can be deep intercepted by the interaction of the living branch bundles, the gravel layers and surface microorganisms and the purification effect is obvious.

The invention discloses a draining and salt-removing method for a newly-ploughed salinized farmland, comprising the following steps of: making a simple farmland concealed pipe by utilizing a building PVC (Poly Vinyl Chloride) sewer pipe, uniformly drilling holes with the diameter of 3mm on the wall of a 100mm plastic sewer pipe by the punching rate of 75 percent, coating two to three layers of crude chemical fiber outside the wall of the pipe, and strapping with plastic ropes; digging several rows of concealed pipe ditches in the newly-ploughed salinized farmland, wherein the depth of the concealed pipe ditches is 1.5-2.0m, the bottom width is 30cm and the specification of the side slope is 1:0.5; paving plastic weaved cloth with the width of 40cm at the bottoms of the ditches, paving sand gravel with the thickness of 15cm on the plastic weaved cloth, paving a coated concealed pipe, paving and spreading sand gravel with the thickness of 15-20cm at the surrounding and the upper part of the concealed pipe, paving the plastic weaved cloth with the width of 40cm on the sand gravel and refilling. The invention mainly solves the technical problem of draining by the concealed pipe in the newly-ploughed salinized farmland in aired regions and has a wide application value on the aspects of prevention and control of salinization and secondary salinizaiton of farmland in the dried regions, reformation and utilization of the farmland in the dried regions as well as prevention and control of desertification.

The invention relates to a vertical greening device and an automatic water circulation system thereof. The automatic water circulation system comprises a water tank arranged at the bottom of the vertical greening device, a water pump arranged inside the water tank and a circulating type water supply pipeline arranged above the water tank, the water supply pipeline comprises a vertically-arranged water supply section and an irrigation section, the irrigation section is arranged inside the vertical greening device, is distributed in an S shape from top to bottom, and is provided with water dripping holes for dripping water to the vertical greening device; the automatic water circulation system comprises a controller and humility sensors, the controller controls the operating state of the water pump according to the information detected by the humidity sensors so as to water the plants timely according to the humidity information and to avoid over-watering, so that water sources are fully saved under the condition that water requirements of the growth of the plants are guaranteed, water and soil loss can be prevented, and the healthy survival of the plants in a life cycle can be guaranteed.

The invention relates to a multi-stage sand blocking device for water and soil conservation. The multi-stage sand blocking device comprises a sand blocking fence, a winding device, a positioning sand-proof net and a load-bearing bottom frame, the winding device is arranged at the lower end of the sand blocking fence, the positioning sand-proof net is wound around the winding device, and the load-bearing bottom frame is arranged at the rear end of the sand blocking fence. The difficult problems that an existing sand blocking fence is usually a reinforced concrete hard wall, the wall partitionsand intercepts silt on the two sides, in the long run, a large amount of the silt located on the upper side of the wall is prone to being accumulated at the edge of the wall, the effect of water and soil conservation is difficult to achieve, the silt accumulated at the wall corner has a certain weight, the wall structure is prone to being damaged to a certain extent due to long-time accumulation,and the existing sand blocking fence is usually poured on a river slope, is cumbersome in installation, and cannot be dismantled can be solved.

The invention relates to a ditch pipe network protection body for slope protection and collapsing hill drainage and soil fixation. The ditch pipe network protection body for slope protection and collapsing hill drainage and soil fixation can be produced easily in a shaping mode and can be combined, assembled and constructed easily in the open air. According to the technical scheme, the ditch pipe network protection body for slope protection and collapsing hill drainage and soil fixation comprises an upper intercepting ditch which is formed in the top of a slope, a plurality of middle horizontal water guiding ditches which are sequentially formed downwards at intervals from the top of the slope, a lower drainage ditch which is formed in the bottom of the slope and a plurality of vertical drainage pipes which are arranged in parallel at intervals on the slope surface; the upper end and the lower end of each vertical drainage pipe are communicated with the upper intercepting ditch and the lower drainage ditch respectively, and each vertical drainage pipe is sequentially communicated with the middle horizontal water guiding ditches from top to bottom.

The invention discloses a soil improver for desertificated land, which is prepared from, by weight, 100-200 parts of humic acid, 100-200 parts of kaolin, 50-100 parts of bio-charcoal, 1-5 parts of a bio-microbial agent, 1-5 parts of a bio-enzyme preparation, 50-100 parts of diatomite, 50-100 parts of distiller grains of cassava, 20-50 parts of rapeseed dregs, 20-50 parts of peanut bran, 100-200 parts of maize straw, 50-100 parts of straw, 20-30 parts of feather meal, 20-30 parts of earthworm powder, 15-35 parts of an amino acid chelating liquid, etc. By adding the kaolin, diatomite, bio-charcoal and crosslinked starch, the soil improver has significant water retention effect, can immobilize the desertificated land and prevents water and soil loss. By adding aged loofah sponge, the maize straw and straw, due to synergistic effects, the soil improver can fix plants and prevent sand, wherein desertification and migration of soil are prevented due to a network structure of the aged loofah sponge.

A tillage system has a first set of deep tilling tines and a second set of shallow tilling coulter tines present in a number more than twice that of the deep tilling tines. The deep tilling tines till the field to a depth of about 5 to 12 inches at row planting locations, loosening the soil for easy plant growth. This deep grooving action builds mounds of soil at both sides of the deep groove which are cleared by a second set of shallow tilling curved coulter tines followed by a third set of plurality of rows of shallow tilling toothed coulters that till the space between grooves to a depth of about 1 to 4 inches, providing a water reservoir space and clearing plant debris. A last row of shallow tilling ruffled coulters are provided to mix and incorporate into soil plant debris and plant stocks, anchoring tilled soil.

The invention discloses a method for recovering staple food bamboos for pandas in subalpine regions, belonging to the technical field of ecological recovering and construction. Aiming at the characters of the staple food bamboos in traditional panda habitats such as difficult natural recovering, long recovering period, slow artificial recovering growth, poor bamboo quality and low bamboo survival rate and according to different habitats, the method disclosed by the invention selects the way of directly planting bamboos under trees or planting the bamboos together with arbors and bushes, thereby rapidly recovering the suitable habitats for the pandas and a forest ecological system, avoiding soil erosion and protecting species diversity.

The invention discloses an ecological revetment based on in-situ solidification of dredged sludge and a preparation method thereof. The preparation method comprises the following steps that 1) sediment is used as the bottom foundation of the ecological revetment by using a preparation device; and 2) sludge required to be dredged is inhaled into a vehicle-mounted stirring device, solidified sludgeslurry is formed by stirring and adding of a solidifying agent, and the solidified sludge slurry is injected into a wood-pile-imitating revetment template to prepare the ecological revetment. The massratio of the sludge solidifying agent, to sludge, to microporous membrane porous ash, to a foaming agent to a rheological agent in the solidified sludge slurry is (5%-15%): (70%-90%): (5%-15%): (0.1%-2%): (0.1%-2%). The ecological revetment based on in-situ solidification of dredged sludge and the preparation method are ecological, safe, practical, free of secondary pollution and low in comprehensive cost.

The invention belongs to the technical field of fruit tree cultivation and management, and particularly provides a method for improving the ecological environment by intercropping sweet clover with the multiple cropping combination of velvet bean and Chinese trumpet creeper in an orchard. The method comprises the steps of sowing with green manure, nursing and management, mowing and utilization andthe like. By intercropping the perennial upright green manure crop sweet clover with the multiple cropping combination of the summer green manure velvet bean and the winter green manure Chinese trumpet creeper in the orchard, the velvet bean, the Chinese trumpet creeper and other enwinding type green manure plants are guided in climbing on the sweet clover, prevented from climbing on vines and being wound on fruit trees and then prevented from affecting the growth of the fruit trees and fruits; through regular mowing, the surface of soil is covered with fresh grasses, and the land surface temperature is adjusted; the green manure and fresh grass production is increased, the content of organic matter in the orchard soil is increased, soil and water are preserved, weeds are inhibited, so that the application amount of chemical fertilizers is reduced, the ecological environment of the orchard is improved, the quality of the fruits is improved, and the market competitiveness is improved.

The invention provides a composite non-woven fabric wrap-knitted grid and a production method thereof. A backing fabric of a hot-rolled and spunbonded non-woven fabric and a common wrap-knitted grid are knitted together through a warp knitting machine, advantages of the backing fabric of the hot-rolled and spunbonded non-woven fabric and the common wrap-knitted grid are integrated, in a civil engineering project, effects of reinforcing and dispersing stress can be achieved, the strength of knots of the warp-knitted grid is enhanced with the aid of features of isotropy and high strength of the non-woven fabric, meanwhile, the filtering performance is good, water and soil loss of a civil engineering base material is avoided effectively, and improvement of integral quality and prolongation of the service life of the civil engineering project are greatly guaranteed and promoted.

Provided is a method for preventing soil erosion in which a nonionic guar and/or a cationic guar is applied on or into the soil. A method for preventing water runoff of a soil in which a nonionic guar and/or a cationic guar is applied on or into the soil is also provided. A treated soil against the soil erosion susceptible to be obtained by the method for preventing soil erosion in which a nonionic guar and/or a cationic guar is applied on or into the soil is also provided.

The invention provides a method for recovering anti-erosion vegetation of a gangue dump slope. An anti-erosion substrate comprises bentonite, zeolite, fulvic acid, wood fibers, polymers and syntheticfibers; water is added into a mixture of the anti-erosion substrate to prepare slurry; plant seeds and fertilizer are added into the slurry; the slurry is sprayed on a soil covering layer or a nutrient layer of gangue dump through a spraying machine, so that the slope is prevented from being eroded by rain, and the seeds quickly germinate, root and grow to protect the slope of the gangue dump. Wherein, the mixture of the anti-erosion substrate comprises, by weight, 600-1200 parts of bentonite, 200-600 parts of zeolite, 20-40 parts of fulvic acid, 1400-2600 parts of wood fibers, 20-100 parts ofpolymers and 0.5-2 parts of synthetic fibers. An anti-erosion vegetation layer prepared by the method retains water, protects the fertilizer, is loose and permeable and can effectively resist wind and rain erosion, prevent soil erosion of the slope of the gangue dump slope and rapidly form plant communities to achieve ecological restoration of mines.

The invention belongs to the technical field of fruit tree cultivation management and particularly provides a method for improving citrus orchard ecological environment by interplanting Tephrosia candida and Dolichos lablab L.. The method comprises the steps of green manure seeding, cultivation management, and cutting and utilization. According to the invention, by interplanting the perennial erect green manure crop Tephrosia candida and the entwined green manure cropDolichos lablab L. between rows of a citrus orchard, the Dolichos lablab L. is guided to climb on the Tephrosia candida, the Dolichos lablab L. is prevented from climbing on and winding around fruit trees, the amount of green manure and grass is increased, at the same time, by regular cutting, the grass covers the surface of soil, the surface temperature is further reduced, the organic matter content of the soil of the citrus orchard is improved, water and soil are preserved, weeds are inhibited, therefore, the fertilizerapplication is reduced, the ecological environment of the citrus orchard is improved, the fruit quality is improved, and the market competitiveness is improved.

Method for stabilizing sand and earth by precipitation of struvite, comprising applying an aqueous solution of salts comprising: a) Mg²⁺ ions of a concentration 10-200 mM, b) NH₄⁺ ions either added in the form of ammonium salt or from decomposition of added urea, of concentration 10-200 mM, c) anions added as part of corresponding cations, d) polyphosphate (Na₅P₃O₁₀/Na₃P₃O₉) of concentration 10-100 mM, e) a catalyst chosen among acidic and alkaline phosphatase.

The invention discloses a box body for interplanting mushrooms and plants. The box body comprises a box main body, mushroom planting shelves, a vegetable planting groove, an adjusting mechanism and awaterproof and breathable membrane mechanism, and a support is arranged above the portion inside the box main body. The adjusting mechanism comprises an electric control box, drying filters, a one-wayvalve, a water pump, an ultrasonic generator, an ozone sterilization generator, an antiosmosis filtering stick, a fog collecting box, a compressor, a lamp light adjusting system, a temperature adjusting system and a humidity adjusting system, the mushroom planting shelves are uniformly arranged under the support from top to bottom, the vegetable planting groove is formed below the mushroom planting shelves, and the waterproof and breathable membrane mechanism which relatively isolates a plant planting area and other areas of the box main body is arranged on the outer surface of the vegetableplanting groove. By means of the box body for interplanting the mushrooms and the plants, the problems that a large quantity of resources are wasted and the cost is high in the production process aresolved, and thus the purposes of increasing yield and income are finally achieved.