A kind of Anti-Typhoon Camellia nitidissima nursery in coastal area cool canopy building methodTechnical field
The present invention relates to botanical seedling culturing Polyhouse technology field, specifically the Anti-Typhoon Camellia nitidissima nursery in a kind of coastal area cool canopy building method.
Background technology
Camellia nitidissima is the general name of Theaceae Camellia Camellia Section Chrysantha, is world-renownedly to treasure endangered plants, is the species uniquely in camellia family with golden yellow petal, is world-famous for the petal that it has golden yellow translucent wax dress.Current Camellia nitidissima in the world has 42 kind of 5 mutation, kind more than 10 is produced and Yunnan Province of China, Guizhou, Sichuan are respectively produced except a kind except North Vietnam, south Guangxi and the west and south are all originated in all the other 29 kind of 5 mutation, and Guangxi is the geographical distribution center of Camellia nitidissima, is described as the native place of Camellia nitidissima.
Dongxing Camellia nitidissima (CamelliatunghinensisChang) is China Guangxi endemic species, and distribution is very narrow, only in the evergreen forest of south Guangxi non-calcareous mountain region, has a small amount of distribution.In recent years, along with the popularity of Camellia nitidissima improves constantly, plantation, research, exploitation Camellia nitidissima become upsurge, cause wild Camellia nitidissima plant to be subjected to excessive exploitation, exacerbate the minimizing of Camellia nitidissima Wild population quantity, are faced with the danger of field extinction.Be badly in need of breeding it carrying out correlative study, and take vigorous growth and the procreation of corresponding Tending guarantee Camellia nitidissima wild stocks.Therefore carry out the research of Camellia nitidissima seedling breeding, artificial propagation Camellia nitidissima nursery stock, to protecting rare and endangered species, a large amount of Camellia nitidissima nursery stock of artificial propagation, is extremely necessary to meet market demand.
Guangxi Gold jasmine tea its growing environment excellent due to kind is only positioned at ALONG GUANGXI COAST one band.Therefore manually adopt booth to breed Camellia nitidissima in a large number, must consider the impact of typhoon, thus build a kind of Anti-Typhoon seedling raising greenhouse, the cultivation for Camellia nitidissima seedling is most important.
Summary of the invention
The technical problem to be solved in the present invention is to provide one and is adapted at coastal area use, has the Camellia nitidissima nursery cool canopy building method of Anti-Typhoon effect.
The present invention takes following technical scheme:
A kind of Anti-Typhoon Camellia nitidissima nursery in coastal area cool canopy building method, comprises the steps:
(1) pre-cast concrete basis: at cloudy canopy head tree design attitude, excavation cement ground; Concrete pedestal digs down earth's surface 50cm, cross section 20cm × 20cm, and head tree imbeds cement ground 30-50cm;
(2) big-canopy framework is set up: set up column, crossbeam, umbrella shape support, arch bar, drag link, spine, centre lead beam, hound, gutter tank, draw-in groove; Described head tree imbeds cement ground, and is bolted reinforcing; All the other components all adopt standard component connect and through galvanizing process;
(3) fly net is installed: within the scope of booth surrounding (end face is established except a place) vertical ground height 30cm-300cm, fly net is installed, when ventilating for booth, prevents insect from entering booth damage to crops;
(4) horticultural covering film and Juan Mo mechanism are installed: large shed top surface and surrounding cover without dripping sharp film, and the outside horticultural covering film of fly net part is designed to activity form, and booth both sides and end face (establishing except a place) manually film-coiling device are packed up or put down;
(5) motor-operated fan is installed: encircle large ceiling ridge design electrical exhaust fan at each, allow hot gas be discharged by fan, booth internal temperature can be regulated; The power supply often encircleing booth exhaust fan controls separately, and the power switch of every booth is integrated in an electric cabinet;
(6) structure of draining, waterproof system: dig drainage ditch from booth 1m place in booth surrounding, if drainage pipeline is by gutter tank access drainage ditch; And build 30cm height brick wall in the close booth side of drainage ditch, and criticize ash with cement concrete, for booth basis water-proof drainage;
(7) setting of shading system: adopt the collapsible black hundred of 70% sunshade rate to knot, Foldable electric launches and packs up, and every booth establishes a set of tendon-drive system, for being launched by sunshade net or packing up.
Further, in described step (2), steel used are hot galvanized steel pipe, and through antirust treatment and Passivation Treatment.
Further, in described step (7), shading system is driven by electromotor, and the sunshade net speed of service is 0.25m/min, and power of motor is 750W, and operating voltage is 380V.
Booth building method provided by the invention, has excellent water resistant drainage measure, prevents because soil layer softens the greenhouse bracket shakiness brought, and can draw horticultural covering film at typhoon weather, effectively can resist typhoon.
Embodiment
Embodiment
Guangxi region Camellia nitidissima protection zone Camellia nitidissima seedling raising greenhouse construction project
Item address is positioned at Fangcheng District, tourist resources, and this area adjoins straits, the North Sea, repeatedly disturbs by typhoon in 1 year, and typhoon brings larger infringement to local productive life.
With the inventive method for the construction of this project booth, step is as follows:
(1) pre-cast concrete basis: after surface management is smooth, at cloudy canopy head tree design attitude, excavation cement ground; Concrete pedestal digs down earth's surface 50cm, cross section 20cm × 20cm; Long 30 meters of the booth of this project, wide 8 meters, adopts arch five to connect a design;
(2) big-canopy framework is set up: head tree imbeds cement ground 30-50cm, and column installs, and reaches after 100% intensity, and be bolted reinforcing until cement ground; Then set up crossbeam, umbrella shape support, arch bar, drag link, spine, centre lead beam, hound, gutter tank, draw-in groove; Except column and cement ground are by by except screw bolt reinforcing, all the other components all adopt standard component to connect and through galvanizing process.
(3) fly net is installed: within the scope of booth surrounding (end face is established except a place) vertical ground height 30cm-300cm, fly net is installed, when ventilating for booth, prevents insect from entering booth damage to crops;
(4) horticultural covering film and Juan Mo mechanism are installed: large shed top surface and surrounding cover without dripping sharp film, and the outside horticultural covering film of fly net part is designed to activity form, and booth both sides and end face (establishing except a place) manually film-coiling device are packed up or put down; Horticultural covering film buying is from Shandong Qing Tian Plastic Products Co., Ltd;
(5) motor-operated fan is installed: encircle large ceiling ridge design electrical exhaust fan at each, allow hot gas be discharged by fan, booth internal temperature can be regulated; The power supply often encircleing booth exhaust fan controls separately, and the power switch of every booth is integrated in an electric cabinet;
(6) structure of draining, waterproof system: dig drainage ditch from booth 1m place in booth surrounding, and establish drainage pipeline by gutter tank access drainage ditch; And build 30cm height brick wall in the close booth side of drainage ditch, and criticize ash with cement concrete, for booth basis water-proof drainage;
(7) setting of shading system: adopt the collapsible black hundred of 70% sunshade rate to knot, Foldable electric launches and packs up, and every booth establishes a set of tendon-drive system, for being launched by sunshade net or packing up.
This project time of accomplishment is in October, 2014, and comes into operation so far, and successfully resisted typhoon " whale " in 2015, the attack of Super Typhoon " rainbow ", in twice Typhoon Activity, big-canopy framework is all excellent.Only under the impact of Super Typhoon " rainbow ", horticultural covering film is started to come off, and still can normally use after again laying.
Booth ant wind load: be greater than 0.5KN ∕ ㎡ (being equivalent to 10 grades of high wind).
The design service life of big-canopy framework is more than 10 years.