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86results about How to "Ecosystem stability" patented technology

Cultivation method for rice direct dibble seeding in wedged ditches

The invention discloses a cultivation method for rice direct dibble seeding in wedged ditches, which belongs to the field of rice cultivation. In order to solve the problem that yield potential of high-yield high-quality varieties is difficult to fulfill by existing cultivation methods, the cultivation method for rice direct dibble seeding in wedged ditches includes the steps: firstly, tilling soil, namely performing no turning or irrigation after preceding harvesting, and digging a field to obtain a plurality of ditches, wherein row spacing between each two adjacent ditches is 18-22cm, each ditch in a triangular shape is wide end up, each ditch is 5-20cm deep and 3-6cm wide, two sides of each ditch are slopes relative to the horizontal plane, and an included angle between each slope and the horizontal plane is 40 DEG-70 DEG; secondly, post-treating rice seeds; thirdly, performing base fertilizer application, direct dibble seeding, and irrigation; and fourthly, performing field management. The traditional ploughing is replaced with wedging, so that farming intensity is reduced, interference to soil is lowered, energy sources are saved, labor is reduced, seeds for use are few, soilwater retention capacity is high, soil system stable is high, fertilizer utilization rate is high, root system growth environment is improved, and cost reducing, yield increase and efficiency enhancement are achieved.
Owner:HUNAN AGRICULTURAL UNIV

Bank-protecting and pollutant-cleansing combined type ecological building block and construction method

InactiveCN102220748AEffective flood protectionSoil and water stabilityCoastlines protectionReceptacle cultivationWater flowEngineering
The invention relates to a bank-protecting and pollutant-cleansing combined type ecological building block and construction method. The ecological building block provided by the invention is formed by casting sand-free concrete, and has a bottom face and two standing faces; the overall ecological building block is tse(a cyrillic alphabet)-shaped; a side concave groove is arranged at one side of the bottom face, and a side bulging part capable of being chelated in relative to the side concave groove is arranged at a same position at the other side of the bottom face, corresponding to the side concave groove; and a concave groove is arranged at the bottom of a lower bottom face of one standing face, and a bulging part corresponding to the concave groove is arranged at the top of the other standing face of a same ecological building block and can be chelated with the concave groove. The invention overcomes the defects of collapse caused by small size of individual bank-protecting ecological building blocks, and easy loss of soils and plants as well as original soil bodies of rivers and lakes, and the like. The bank-protecting and pollutant-cleansing combined type ecological building block can resist impacts of water waves, prevent flood, and maintain water and soil stable, is not prone to cause the phenomenon of collapse on the bank, can be used for plant planting and cleansing of the pollutants from the bank, can be prefabricated in batch by a factory and has the advantages of low fabrication cost, simplicity for assembly in construction, and great time-saving performance for construction.
Owner:HOHAI UNIV

Construction method of water ecological system of landscape lake

The invention relates to the field of pollution control of water environments. Aiming at the problem of low self-cleaning capability of a landscape lake, the invention provides a construction method of a water ecological system of the landscape lake. The method comprises the following steps of S1, pretreatment of lake water: putting microbes and zooplanktons into the lake water; S2, construction of an aquatic plant system: planting aquatic plants; S3, construction of an aquatic animal system: after the planting of the aquatic plants is completed, putting aquatic animals into the lake water; and S4, later-stage maintenance: regularly harvesting the aquatic plants and catching the aquatic animals. Firstly, the microbes and the zooplanktons are added into the lake water, and the microbes adsorb and decompose organic substances in the lake water, so that nutrient substances such as ammonia, nitrogen and phosphorus in water can be favorably reduced, and water body transparency is improved;the zooplanktons are favorable for the decomposition of blue-green algae in the lake water; a better environment is favorably provided for the growth of the aquatic plants; the survival rate of the aquatic plants is favorably improved; and the self-repairing capability and self-purification capability of a water body are enhanced.
Owner:广东华碧环保股份有限公司

Fiber tube reinforced hollow fiber composite biofilm as well as preparation method and application thereof

The invention discloses a fiber tube reinforced hollow fiber composite biofilm as well as a preparation method and application thereof. According to the invention, a coating-immersion precipitation phase transformation method is adopted for utilizing a composite film spinning device to coat a braided tube by a casting solution liquid to prepare the fiber tube reinforced hollow fiber composite biofilm with high strength and high flux. The product provided by the invention has a large specific surface area, in particular, the specific surface area of the oxygen permeable film can be as high as 5108 m<2>/m<3>; the film is used as a carrier, a sufficient adhesion area can be provided for growth of microorganisms in a smaller space, so that a concentration of the microorganisms in the unit space is greatly improved, the treatment capacity per unit volume can be improved, and the aeration efficiency is high; the film has the characteristics of selective ventilation, and the oxygen absorptioncapacity is multiple times that of conventional equipment; and the product has the high-efficiency oxygen separation characteristic, so that the microorganisms are attached to the surface of the biofilm to form a biotic community to naturally form a stable ecosystem, the efficiency of biological absorption of water pollutants is accelerated, and the black odor problem can be thoroughly solved.
Owner:SUZHOU BEST COLOR ENVIRONMENTAL PROTECTION NANOTECH CO LTD

River way wave-dissipation and bank-protection module and river way wave-dissipation and bank-protection structure

ActiveCN105507204APurify pollutionSolve problems limited by water flow environment, etc.BreakwatersQuaysWater flowComputer module
The invention relates to a river way wave-dissipation and bank-protection module and a river way wave-dissipation and bank-protection structure. The bank-protection module comprises a net cage which is arranged on an outer layer and is formed by braiding metal wires, a gravel structure filled into the net cage, wherein the net cage is in a wooden-horse-shaped structure with trapezoidal transverse and longitudinal sections; the gravel structure comprises a first gravel layer arranged on the lower layer and a second gravel layer arranged on the upper layer; the bank-protection structure comprises at least two rows of the bank-protection modules which are arrayed in a near river bank in a triangular shape; a still water region is formed between the bank-protection modules and the river bank; aquatic plants are planted in the still water region. The river way wave-dissipation and bank-protection structure provided by the invention creates a new water flow boundary so that effects of controlling and guiding a water flow and protecting a bank are realized. Furthermore, the river way wave-dissipation and bank-protection structure also provides an ecological gallery for aquatic organisms through forming gentle water flow conditions and ecological chains, and good conditions are created for reproduction and inhabitation of the aquatic organisms, so that a stable ecological system is formed.
Owner:BEIJING ORIENT LANDSCAPE

Tongjiang lake aquatic vegetation restoring cultivation method

The invention discloses a Tongjiang lake aquatic vegetation restoring cultivation method. The method is characterized in that any one or more of Potamogeton wrightii Morong, Myriophyllum spicatum L.,nelumbo nucifera, Nuphar pumilum (Hoffm.) DC., zizania latifolia, Vallisneria spinulosa S.Z.Yan and hydrilla verticillata are selected as cultivated aquatic plant tool species; the best time for aquatic plant cultivation is selected to be from early April to mid-April; the controlled best cultivation water level is 10cm-50cm; seedlings of the Potamogeton wrightii Morong, Myriophyllum spicatum L.,Nuphar pumilum (Hoffm.) DC., zizania latifolia, Vallisneria spinulosa S.Z.Yan and hydrilla verticillata are used, and underground rhizomes and seeds of the nelumbo nucifera are used; in order to facilitate seed germination and seed seedling growth diffusion, tractor-ploughing is performed on a lakeshore-type recovery area in dry season; and hypophthalmichthys molitrix and aristichthys nobilis areput to improved water quality, and herbivorous fishes such as grass carps and fishes fed on benthic animals are prohibited from being stocked. According to the method, not only is waste of seed seedlings reduced, but also artificial cultivation work amount is reduced, and a restoring method achieving a required covering degree is provided to increase biodiversity of lakes, thereby making the ecosystem more stable and not easily destroyed.
Owner:ANHUI UNIVERSITY

Wave-eliminating bank protecting method of water purification type riverway

ActiveCN105648977APurify pollutionSolve problems limited by water flow environment, etc.BreakwatersQuaysAbsorption capacityAquatic animal
The invention relates to a wave-eliminating bank protecting method of a water purification type riverway. The bank protecting method includes the following steps that the specification of bank protecting modules is determined, the bank protecting modules are prepared and installed, and bank protection ecology is built. Due to the fact that the wave-eliminating bank protecting modules are arranged nearby a water bank of the riverway and are used for retarding a water flow and decreasing the speed of the water flow, a new water flow boundary condition is created, and therefore the effects of controlling and guiding the water flow and protecting the bank are achieved. Meanwhile, a static water micro environment is formed between the wave-eliminating modules and the bank, aquatic plants can be planted, aquatic animals can inhabit in the static water micro environment, and therefore an aquatic animal and plant ecological system is formed, and pollution of bank slope point and face pollution sources on the water quality is relieved. According to the bank protecting method, high-specific-area stones such as zeolite, ceramsite and vermiculite are adopted, stability and water absorption capacity of gravel are achieved, and the effects of purifying water and improving the water quality are achieved by absorbing pollutant substances, such as heavy metal ions, N and P, in water.
Owner:BEIJING ORIENT LANDSCAPE

Method for making seawater ecological ornamental aquarium and seawater ecological ornamental aquarium

The invention relates to a method for making a seawater ecological ornamental aquarium and the aquarium. The aquarium comprises an ornamental bin. Live sand, live biolith, functional organisms such as starfishes, algae and hermit crabs, and ornamental organisms such as coral, fishes and shrimps are placed in the ornamental bin, wherein the live sand, the live biolith and the functional organisms are selected from a mature ecological culture pond; and then the ornamental bin is communicated with the mature ecological culture pond to form a mature and stable ecological system. The aquarium made by the method comprises the ornamental bin, a heating rod bin, a precipitation bin and a clear water bin; large particle suspended solids are placed in the precipitation bin; a heating rod is arranged in the heating rod bin to control the water temperature; and water flows through the clear water bin, the ornamental bin and the precipitation bin, then returns to the clear water bin and is circulated so as to keep excellent ecological balance of the aquarium. According to the invention, the little ecological system of the aquarium can be promoted to be mature in the shortest time; production period is shortened; cost is reduced; and meanwhile, consumers obtain the seawater ecological ornamental aquarium which is easy for feeding and simple to maintain.
Owner:汪远

Bank protection method for wave dissipation of riverway

The invention relates to a bank protection method for wave dissipation of a riverway. The bank protection method comprises the following steps that the specifications of bank protection modules are determined, the bank protection modules are prepared, the bank protection modules are mounted, and bank protection ecology is constructed. The wave dissipation bank protection modules are arranged nearby a water bank of the riverway, new water flow boundary conditions are created by means of detention and speed reduction of the modules on water flow, and therefore the functions of controlling and guiding the water flow and protecting a river embankment are achieved. Meanwhile, a still water microenvironment is formed among the wave dissipation modules and the river embankment, aquatic plants can be planted, aquatic animals can perch, and therefore an aquatic animal and plant ecological system is formed, and pollution of point pollution sources and non-point pollution sources of a bank slope to water quality is reduced through purification. The problem that bank protection of a natural bank slope is limited by the water flow environment and the like during application is solved, meanwhile, a good water area environment is formed, and the bank protection type can be applied within a wider range.
Owner:BEIJING ORIENT LANDSCAPE

Regulating method for alleviating harm of cephalcia kunyushanica to host plants

The invention discloses a regulating method for alleviating harm of cephalcia kunyushanica to host plants and belongs to the field of forestry harmful insect prevention. The regulating method includes mixing and matching non-host plants with negative species association with cephalcia kunyushanica among the host plants, and preferentially includes performing physical interference on mature and young cephalcia kunyushanica, cleaning the ground of a forest and trimming host plant branches with cephalcia kunyushanica nests. The regulating method has the advantages that by means of changing a specific forestry distribution structure, the forestry distribution structure is changed in the direction not beneficial to survival of the cephalcia kunyushanica, so that the cephalcia kunyushanica is hard to migrate and spread by flying, and the harm is transferred; by the aid of physical measurements, initial population density of the cephalcia kunyushanica is lowered; by combining the mixing and matching measurement with the physical measurements, population quantity of the cephalcia kunyushanica can be kept in a low level, so that the harm to the host plants is decreased effectively, and an ecological environment with the cephalcia kunyushanica is maintained and protected.
Owner:INST OF FOREST ECOLOGY ENVIRONMENT & PROTECTION CHINESE ACAD OF FORESTRY

Method for ecologically softening hard revetments

The invention particularly relates to a method for ecologically softening hard revetments, including hardened revetments and unhardened revetments which need ecological restoration. According to the method, on the premise that the structure of an original revetment is not damaged, the unit layers of the original revetment are backfilled with lumps and plain soil one by one from the lowest one, tamping is carried out, and stiffening nets and stiffening ribs are laid on the unit layers; seepage water pipes can also be laid on the unit layers in a pre-buried mode. When backfilling is carried out on the highest layer of the original revetment, the highest layer can be backfilled with sandy soil instead of lumps and plain soil so that a sandy soil layer can be formed. After backfilling is finished, a layer of air-permeable and water-permeable geotextile is laid on the slope of a plain soil layer, then, gabions are installed layer by layer along the slope from the bottommost part, the gabions can be installed at a time when construction conditions allow, and adaptable plants are fixedly planted in the gaps between the gabions or in the gabions. According to the method, hardened revetments can be ecologically softened, and the unhardened revetments which need restoration can be restored; the revetments can be more stable, and construction waste, building material waste and living and production waste residues can be recycled after being effectively treated.
Owner:重庆任甲生物科技有限公司
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