The planting unit of pleuston in a kind of current water
Technical field
The utility model relates to the planting unit of pleuston in a kind of current water, belongs to the water body environment technical field
Background technology
In recent years, the body eutrophication problem has been subject to whole world lakes and marhshes and environmentalism expert's extensive concern.The most of river course of China, lake ecological environment worsen.Since the mid-1970s, waterplant becomes the focus of research gradually as the Primary Actor of polluted-water reparation, is utilizing aquatic plant purification and is repairing and all to have done a large amount of research work aspect polluted-water both at home and abroad.The research that utilizes the waterplant plant that water body environment is improved mainly concentrates on three aspects: absorb the research that nutritive salt improves water quality in its growth and breeding process from water; By secreting the research of allelochemical and competition nutrition, the breeding of sunlight inhibition algal grown; Take root in the bottom, suspend again by the fixed action inhibition substrate to substrate and cause the research of Nutrient release.As the important means of shallow water Hyper-eutrophic ecological regulation and control and the control of endogenous pollution load, the key of waters biological restoration is to seek desirable phytoremediation species and rational plantation condition, and in time gathers in the crops, and avoids secondary pollution in the aquatic vegetation recovery.
Pleuston can effectively be repaired eutrophication water by absorbed nitrogen, phosphorus and allelopathy.Pleuston can reach Eutrophication materials absorption from the close-by examples to those far off by the long-term absorption at certain area.Pleuston can also be stopped sedimentation to suspension bed sediment simultaneously, to reach the purpose of subduing.
But pleuston often has a strong impact on its absorption and viability because of its floatability with current.Particularly at the larger large water surface of stormy waves, the turnover rate of pleuston reaches more than 80%.Existing lake, the river course, the general tree pleuston is fixed in the pond, perhaps use simple support to be fixed, fixing firm not, pleuston still can arbitrarily be waved on the water surface, and the pleuston energy for growth is extremely strong, usually extend to beyond fixing scope fixing poor effect.
In the restoration of the ecosystem process, be in the ecological niche of a comparative superiority due to pleuston in whole aquatic ecosystem, larger growth vigor arranged, therefore in the primary producer, fast than other aquatic plants growth speed, can very fast whole coverage of water be taken.But floating matter not only affects aesthetic feeling, the increase fishing job amount of waters view, covering also of floating matter can affect repairing effect by the photosynthesis that affects submerged vegetation, in addition, because pleuston mostly is annual, in case the season of growth goes over, if just the very fast rotten secondary pollution that causes in water of the untimely removing of old plant.At engineering field, the mode of often taking to build a dam is stopped floating matter, but dam body construct the exchange that has also affected water body when stopping floating matter.The process of construction has caused to waters natural, ecological style and features the destruction that is difficult to repair especially.
For addressing the above problem, existing investigator and unit utility model the floating bed technology, described floating bed technology is to utilize the technology of planting aquatic plants on the water surface floatable bed body and bed body, root system by plant filters and absorbs pollution substance in sewage, and has well controlled the growth of waterplant by floating bed.lot of domestic and international investigator has used the floating bed technology eutrophication water has been purified, and decontamination effect improving is apparent in view, open day is on December 17th, 2008, it is the Chinese utility model patent of CN201165481 as publication number, name be called " a kind of for water purify biological floating bed ", solved the floating bed structural strength little, shock-resistant capacity of anti-storm is low, the large technical problem such as insecure of splicing difficulty between each floating bed mainboard, but more complicated on this biological floating bed skeleton construction, materials are many, cost is very high, and, can only plant pleuston by the implantation hole that sets, therefore the pleuston area is less, cost performance is low, be not suitable for large-area waters.
The utility model content
In order to solve the problems of the technologies described above, the utility model is taked following technical scheme:
The planting unit of pleuston in a kind of current water, the leader 3 that comprises flexible material, the end to end structure that surrounds circumferential sealing of described leader 3, its upper and lower both sides hawser 1 tying, four orientation of described leader 3 are provided with four root posts 6, described column 6 is fixed on water body bank or water bottom, and described leader 3 is connected with described column 6 by rope; Also wear a plurality of floating drums 2 in described leader 3, the above water of described leader 3 is supported by described floating drum 2; Described leader 3 lower rims are connected with the weight 7 that evenly arranges; Many plantation ropes 5 that are parallel to each other are set in described planting unit, and described many plantation ropes 5 form the net bed.
Further, the described hawser 1 polyethylene fishing rope that is diameter 1~2cm.
Further, described column 6 length are 1.5m, and diameter is 6-7cm.
Further, described floating drum 2 is height 70-80cm, the cylinder foam bucket of width 50cm.
Further, described weight 7 is common brick.
Further, the spacing between described many plantation ropes 5 is 3m.
The implantation methods of the planting unit of pleuston in a kind of current water comprises the following steps:
1) every 2.5-3.5m, that one clump of pleuston 4 is tied thereon on described plantation rope 5;
2) in the zone of the net bed that described plantation rope 5 forms, put into many clumps of pleustons 4.
Further, described pleuston is water peanut and/or Herba Eichhorniae and/or frogbit.
Further, described step 2), the many clumps of pleustons 4 of putting into evenly distribute.
characteristics of the present utility model are: adopted cheap leader, floating drum, hawser, the plantation rope, the basic materials such as weight, be built into the pleuston planting unit of suitable water field of big area, and, the higher stability of utilizing every clump of pleuston to be difficult for spreading out, pleuston is tied on the plantation rope every 2.5-3.5m, the impetus of a growth is provided for pleuston, pleuston can breed by Rapid Rooting, again other pleustons are positioned in other positions of net bed, the positioning action of the pleuston that utilization ties, utilizing the barrier effect of leader, even the planting unit of the pleuston in water body of the present utility model has carried out small size drift on the water surface, floating vegetation can not leave the zone at net bed place yet, this planting unit plays good position-limiting action.
The beneficial effects of the utility model are:
1) improved the living environment of lake environment and other biological, had profound purification, species diversity and form hydrocoles and perch, suppress algae function and aesthetic of landscape function etc.
2) can stop floating matter, not affect the exchange of water body simultaneously;
3) be convenient to mobile, wind and wave resistance.
4) cost is low, and cost performance is high, is fit to use in the waters on a large scale.
5) position of floating bed can be regulated automatically, can rely on the buoyancy drive of floating drum 2 that it is floated on the surface in the situation of water level rising or reduction.
6) utilize the pleuston proportion characteristics less than water, the net bed only pulls into plantation rope 5, and is convenient and swift, and saves material.
7) water plant planting is convenient, utilizes that pleuston proportion is little, breeding is fast, the characteristic of not damaged loss, and method falls within pleuston on the net bed to adopt binding and shed etc., need not to use planting groove, also need not to fix with cord.
Description of drawings
Fig. 1 is the structural representation of the pleuston planting unit in current water of the present utility model.
Fig. 2 be in pleuston planting unit in current water of the present utility model binding and shed hydrophyta natantia after schematic diagram.
Wherein, 1, hawser, 2, floating drum, 3, leader, 4, pleuston, 5, the plantation rope, 6, column, 7, weight.
Embodiment
Below in conjunction with specific embodiment, the utility model is further illustrated.
Referring to Fig. 1, the planting unit of the interior pleuston of the utility model current water comprises for 3 of the leader of enclosure pleuston, leader 3 both sides hawser 1 tying, hawser 1 is the polyethylene fishing rope of diameter 1.5cm, also comprise for the fixing column 6 of leader 3, column 6 is to be about 1.5m, the stake of diameter 6-7cm.Leader 3 is divided into waterborne and underwater portion, and above water supports with floating drum 2, and floating drum 2 is highly about 75cm, and width is the cylinder foam bucket of 50cm approximately, and vertical for making leader, underwater portion hangs with weight 7 every 5m, and weight 7 is fired the common brick that forms for clay.Simple and easy net bed is made at the place at the inner water surface of leader, the net bed is by drawing a plantation rope 5 to form along being parallel to long limit every 3m, every about 3m, that pleuston 4 is tied thereon on plantation rope 5, pleuston 4 is the stronger indigenous pleuston of resistance to soiling, for example, water peanut, Herba Eichhorniae and frogbit etc. make it not assemble agglomerating because of water flow; At last, pleuston 4 is sprinkling upon in the grid of net bed and makes its even distribution.By the vigorous growth of pleuston 4, constantly purify water and improve water transparency, and constructing stable two dimensional structure with the transverse growth that reaches of its root system downwards, reach the powerful effect of stopping.Such pleuston implantation methods makes whole planting unit, especially the structure of floating bed is simplified, and the madness of utilizing leader to control pleuston 4 spreads, the waters is in optimum growh and photosynthesis ecological niche to make a net waterplant of carrying be in all the time fixedly, not only having solved the pleuston madness spreads, gathers in water flow is difficult, the secondary pollution problems of rotting winter to cause, and absorbed nitrogen, phosphorus and allelopathy are effectively repaired eutrophication water.
In plantation time, will be with the whole plant of root by adopting the binding method and directly shedding method and plant on easy floating bed.Make not fugacity of pleuston 4 by the buoyancy of floating drum 2 and the gravity of weight 7, and driving planting unit integral body regulates automatically with the water level height, make the net bed be in all the time on the water surface, thereby limited the loss of pleuston, the net bed keeps the fixed position and passes through the vigorous growth of pleuston 4, constantly purifies water and improves water transparency.
Planting unit and the implantation methods thereof of pleuston in current water of the present utility model, can improve to a certain extent the living environment of lake environment and other biological, have profound purification, species diversity and form hydrocoles and perch, suppress algae function and aesthetic of landscape function etc., also can stop floating matter, but not affect the exchange of water body; Simultaneously, be convenient to mobile, cost is low, wind and wave resistance.
Although the present embodiment and leader that accompanying drawing is described 3 rectangular structures, leader 3 can be repaired needs or water quality characteristic according to the river course, its shape of flexible and layout thereof, extends, and therefore differing is decided to be the rectangular configuration of standard.Those of ordinary skill in the field can realize function of the present utility model equally by the simple conversion to the present embodiment; under the prerequisite that does not break away from the utility model purport, the utility model is also had various variations, these variations all fall in protection domain of the present utility model.