Background technology
Along with the quickening of process of industrialization, urban population density increases, and the environmental pollutions such as waste gas, dust, noise increasingly sharpen, and has seriously damaged civic physically and mentally healthy.Increase city's green areas imperative, and urban ground green coverage is limited, need to develop vertical planting, especially roof greening.At present, the careless blanket of many employings is afforested roof, and the implantation methods of existing grass blanket for greening roof one-stage lawn formation all contains growth substrate, this growth substrate is comprised of vegetalitas waste material or house refuse, wood sawdust, yellow soil, composite fertilizer, quicklime, cement, bone meal etc., method for roof cultivation is: first prepare growth substrate, then growth substrate being brought up to roof puts evenly, sow seeds on growth substrate again unrooted Buddhist first seedling cover some nutrient matrixes or cuttage plantation, plant by often watering, after 30 days, just can be delivered for use at least.Its weak point is:
(1) growth substrate raw material sources are narrow, be unfavorable for promoting the use of, and single growth substrate of doing with vegetalitas waste material easily infested, rot, easily make the plants such as stringy stonecrop susceptible or be subject to insect pest and affect growth.
(2) growth substrate is loose, easily by rain drop erosion, caused loss, before stringy stonecrop survives into level ground, growth substrate is not loose, when if chance natural precipitation amount is large, can cause matrix to be washed away in a large number loss, long-term rainwater or irrigation are washed away matrix are run off, and the later stage can affect the growth of stringy stonecrop; In addition, the matrix being washed may be stopped up sewer or cause the pollution of building ground, can cause rainwater punching disorderly simultaneously and wash away the phenomenon of linear stonecrop seedling, thereby making the lawn forming occur that cover degree is inhomogeneous.
(3) the stringy stonecrop management talent of plantation in earlier stage will often watering survives rapidly, so not only will reinstall watering device, connect and water drainage facility, and the frequent high and low of administrative staff roof is very inconvenient.
(4) be subject to stringy stonecrop growth characteristics and Climatic Effects, winter and summer stringy stonecrop poor growth or stop growing, the method for above-mentioned growth substrate can not guarantee to construct throughout the year.
Due to above-mentioned shortcoming, make the spread of roof greening and application be subject to larger restriction.
Utility model content
The technical problems to be solved in the utility model is, for above-mentioned defect of the prior art, provides a kind of grass blanket for greening roof and composite plant blanket.
The utility model solves the technical scheme that its technical problem adopts:
A kind of grass blanket for greening roof is provided, and described grass blanket for greening roof comprises the first filter cotton layer for reducing moisture seepage, for storing the cotton layer of moisturizing of moisture, for reducing the second filter cotton layer of moisture evaporation rate in the cotton layer of described moisturizing, and plantation layer; The cotton layer of described the first filter cotton layer, moisturizing and the second filter cotton layer sets gradually and form composite plant blanket by sewing up or binding, described plantation layer is positioned at the surface of the second filter cotton layer; The thickness of described the first filter cotton layer is 0.8mm~5mm, and the thickness of the cotton layer of described moisturizing is 3mm~10mm, and the thickness of described the second filter cotton layer is 0.8mm~5mm; The root of described plantation layer penetrates the cotton layer of moisturizing through the second filter cotton layer.
In grass blanket for greening roof described in the utility model, described plantation layer is any one in stringy stonecrop, PUDIJIN bamboo or purple zebrina.
In grass blanket for greening roof described in the utility model, described composite plant blanket is square, rectangle or other arbitrary shape.
In grass blanket for greening roof described in the utility model, described the first filter cotton layer and/or the second filter cotton layer are filter cotton, nonwoven, water slurry paper, ventilative sponge or felt.
In grass blanket for greening roof described in the utility model, the cotton layer of described moisturizing is water-absorbing sponge.
The utility model also provides a kind of composite plant blanket, comprises the first filter cotton layer for reducing moisture seepage, for storing the cotton layer of moisturizing of moisture and for reducing the second filter cotton layer of moisture evaporation rate in the cotton layer of described moisturizing; Described the first filter cotton layer, the cotton layer of moisturizing and the second filter cotton layer set gradually and sew up or bind; The thickness of described the first filter cotton layer is 0.8mm~5mm, and the thickness of the cotton layer of described moisturizing is 3mm~10mm, and the thickness of described the second filter cotton layer is 0.8mm~5mm.
In composite plant blanket described in the utility model, described composite plant blanket is square, rectangle or other arbitrary shape.
In composite plant blanket described in the utility model, described the first filter cotton layer and/or the second filter cotton layer are filter cotton, nonwoven, water slurry paper, ventilative sponge or felt.
In composite plant blanket described in the utility model, the cotton layer of described moisturizing is water-absorbing sponge.
Implement grass blanket for greening roof described in the utility model and composite plant blanket, there is following beneficial effect: first, grass blanket for greening roof of the present utility model does not comprise and contains the growth substrate of planting nutrition, avoided growth substrate because of infested or rot to cause the harm such as stringy stonecrop is susceptible, and composite plant blanket can be not washed away, cause sewer blockage or building ground to pollute; Secondly, by adopting the method for cultivating stringy stonecrop grass blanket on ground, can avoid roof plant culturing stringy stonecrop; The 3rd, grass blanket for greening roof of the present utility model is comprised of the material with certain pulling force, and the integral body carrying and the monoblock that are conducive to grass blanket for greening roof are sodded; The 4th, adopt the way of cultivating in advance grass blanket for greening roof, make careless blanket there is higher cover degree, generally can reach more than 90%, and the material weave in of the root system of stringy stonecrop and careless blanket, be difficult for separately.Finally, the utility model grass blanket for greening roof all can be constructed throughout the year.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
A kind of grass blanket for greening roof that one of the utility model preferred embodiment provides, described grass blanket for greening roof at least comprises successively from bottom to top and reduces the first filter cotton layer 1 of moisture seepage, store the cotton layer 2 of the moisturizing of moisture, reduce the second filter cotton layer 3 of the cotton layer of described moisturizing 2 interior moisture evaporation rate, and plantation layer 4; The first filter cotton layer 1, the cotton layer of moisturizing the 2 and second filter cotton layer 3 set gradually and form composite plant blanket by sewing up or binding, and plantation layer 4 is positioned at the surface of the second filter cotton layer 3; The thickness of the first filter cotton layer 1 is 0.8mm~5mm, and the thickness of the cotton layer 2 of moisturizing is 3mm~10mm, and the thickness of the second filter cotton layer 3 is 0.8mm~5mm; The root of described plantation layer 4 penetrates the cotton layer 2 of moisturizing through the second filter cotton layer 3.
Wherein, plantation layer is any one in stringy stonecrop, PUDIJIN bamboo or purple zebrina, and purple zebrina is mainly applicable in cloudy raw situation.In the present embodiment, plantation layer is stringy stonecrop, and this stringy stonecrop has excellent drought resistance and the vitality of overlength, even on summer high temperature, the roof of arid without rain, it can be not dead in 30 days under the state of unrooted, still can keep vigorous vitality.Meanwhile, the culture matrix of stringy stonecrop requires simple, can by soilless culture method, cultivate on roof.
Further, the first filter cotton layer 1, the cotton layer of moisturizing the 2 and second filter cotton layer 3 are combined to form a kind of composite plant blanket, and stringy stonecrop is planted on this composite plant blanket.Concrete, the first filter cotton layer 1, the cotton layer of moisturizing the 2 and second filter cotton layer 3 are to form composite plant blanket by sewing up or binding, and this composite plant blanket can be square, rectangle or other arbitrary shape.
Concrete, grass blanket for greening roof of the present utility model does not comprise and contains the growth substrate of planting nutrition, avoided growth substrate because of infested or rot to cause the harm such as stringy stonecrop is susceptible, and composite plant blanket can be not washed away, causes sewer blockage or building ground to pollute.
Wherein, the first filter cotton layer 1 can be made for any one in filter cotton, nonwoven, water slurry paper, ventilative sponge or felt, and thickness is 0.8mm~5mm.The first filter cotton layer 1 mainly plays support, discharge too much rainwater, prevent that thereby 2 moisture penetration of the cotton layer of moisturizing from playing the effects such as protection floor floor.
The cotton layer 2 of moisturizing can adopt the materials such as water-absorbing sponge to make, and its thickness is 3mm~10mm.The cotton layer 2 of moisturizing is mainly used in moisture and stores, absorbs rainfall or irrigate moisture, for green plants provides continual and steady moisture supply, plays the effect of drought-resistant water-preserving.
The second filter cotton layer 3 also can be made for any one in filter cotton, nonwoven, water slurry paper, ventilative sponge or felt, and thickness is 0.8mm~5mm.The second filter cotton layer 3 major function, for carrying out water conservation covering, reduce the moisture evaporation rate in the cotton layer 2 of moisturizing, prevent the cotton layer 2 moisture evaporation of moisturizing too much, play the effect of drought-resistant water-preserving.
In the present embodiment, the first filter cotton layer 1 and the second filter cotton layer 3 are nonwoven.
Above-mentioned grass blanket for greening roof can directly be routed to roof one-stage lawn formation:
A) to carrying out the roof of roof greening, do infiltration detection, and take the necessary measures and guarantee that roof does not seep water;
B) finished product grass blanket for greening roof is transported to roof direct splicing;
C) can be delivered for use after watering in right amount, later without watering, fertilizing, can grow always.
In sum, the utlity model has following beneficial effect:
(1) grass blanket for greening roof of the present utility model does not comprise and contains the growth substrate of planting nutrition, avoided growth substrate because of infested or rot to cause the harm such as stringy stonecrop is susceptible, and composite plant blanket can be not washed away, cause sewer blockage or building ground to pollute.
(2) by adopting the mode of cultivating grass blanket for greening roof on ground, can avoid the problems of bringing roof plant culturing stringy stonecrop, if stringy stonecrop is cultivated on roof, carry respectively roof on stringy stonecrop and growth base-material bothers very much, not only on roof, to pave base-material, and stringy stonecrop also will lay evenly, waste time and energy.
Further, stringy stonecrop plantation will fully guarantee that root system is moistening early stage, could survive rapidly, need to often water.If directly at roof plant culturing, administrative staff need upper and lower frequently, particularly for Light roofing, very inconvenient, also need to lay watering device, and the management phase of watering is more than one month.
In addition, stringy stonecrop is cultivated the initial stage, if use growth base-material, can be very loose, and once run into heavy rain or water and wash away, base-material can be broken up, and even stringy stonecrop also may be flushed away, and causes roof downpipe to stop up, and the stringy stonecrop Cheng Ping finally forming is also just inhomogeneous.
(3) stringy stonecrop grass blanket of the present utility model is comprised of the material with certain pulling force, the integral body carrying and the monoblock that are conducive to stringy stonecrop grass blanket are sodded, size and the weight of grass blanket can arrange as required, general equal can be by single carrying, while therefore constructing on roof, operating efficiency can improve greatly.
(4) the utility model adopts the way of cultivating in advance stringy stonecrop grass blanket, makes careless blanket have higher cover degree, generally can reach more than 90%.The material weave in of the root system of stringy stonecrop and careless blanket, is difficult for separately.While therefore sodding on roof, substantially do not need professional to construct, only need in advance roof to be carried out to anti-drain process, construction can be sodded by user oneself or common laborer completely, and settles at one go, and immediate effect is good.
(5) all can construct throughout the year.
Although the utility model describes by specific embodiment, it will be appreciated by those skilled in the art that, in the situation that not departing from the utility model scope, can also carry out various conversion and be equal to alternative the utility model.In addition, for particular condition or material, can make various modifications to the utility model, and not depart from scope of the present utility model.Therefore, the utility model is not limited to disclosed specific embodiment, and should comprise the whole embodiments that fall within the scope of the utility model claim.