CN102177806B - Rapid field planting method for eel grass - Google Patents

Abstract

The invention discloses a rapid field planting method for eel grass as a submerged plant, belonging to the technical field of ecological environment engineering. The method comprises following steps of (1) selecting flourishing eel grass, wherein the height of the flourishing eel grass is 15 cm to 30 cm; (2) fixing the eel grass to the middle part of a fixing rod in parallel by using a fixing rope; (3) sheathing the upper part of the fixing rod with a jointed bamboo pole by using a hollow bottom end, perpendicularly inserting the fixing rod into the bottom of water, and pressing the lower part of the fixing rod into a substrate to be fixed; and (4) perpendicularly pulling the bamboo pole out, and fixedly planting the eel grass on the substrate. The invention has advantages of simpleness, low cost, obvious yield effect and capabilities of efficiently improving the water quality of the water body and enhancing the transparency of the water body, and is suitable for the recovering project of the diversity of aquatic vegetation and aquatic plants in lakes, or the ecological reconstruction project of an aquatic ecosystem of the lakes.

Description

The method of the quick field planting of eel grass

Technical field

The present invention relates to the ecotope field of engineering technology, relate in particular to a kind of submerged plant---the method for the quick field planting of eel grass.

Background technology

Current; Because China's polluted-water is problem ubiquities such as qualified discharge, forest cover destruction and water and soil loss aggravation not; Make the nitrogen and phosphorus load of receiving water bodies such as river and lake increase; Water transparency descends and the body eutrophication problem is given prominence to, and atrophy of aquatic vegetation area and the bio-diversity brought fall sharply, and the careless type-clear water attitude in lake more and more highlights to algae type-muddy water attitude conversion series ecological problem.

Submerged vegetation is one of lake aquatic ecosystem important component part, has important ecological significance aspect stable keeping aquatic ecosystem; It can not only be for Herbivore provides food source, protects the place for zooplankton and fish provide, and can also play to purify water and prevent effects such as sediments suspends again.Yet at present China overwhelming majority lakes are because the eutrophication aggravation, and water transparency sharply descends, and occur that submerged plant disappears, the submerged vegetation area dwindles and vegetation and plant species unification and lake deteriorate to the severe situation of secondary barren.Recover the aquatic vegetation in China lake, be considered to repair the eutrophic lake wetland, carry out the important means of lake ecological reparation and raising lake service function.Yet the exploiting species field planting method that the pioneer recovers kind chooses with the lake ecological reparation is one of technical barrier that is run in the ecological recovery technology.

Eel grass [ Vallisneria natans(Lour.) be that perennial acaulescence sinks pasture and water originally Hara)], stolon is arranged.Phyllopodium gives birth to, and is linear, and long 30～50 centimetres, wide 5～10 millimeters, the top is blunt, and the full edge in edge or little has serration.This species happiness is warm; Anti-concealment; Not tight to the soil requirement, be widely distributed in area, temperate zone, the world, on China Jilin, Hebei, Shaanxi, Shandong, Jiangsu, Anhui, Zhejiang, Jiangxi, Fujian, Taiwan, Hubei, Hunan, Guangdong, Guangxi, Sichuan, Guizhou and Yunnan and other places distribution is arranged all.Eel grass durability against pollution and regeneration capacity are strong, how to enlarge population with vegetative mode, are the important foodstuffs sources of herbivorous fishes and palmipeds, are the constructive species or the sociales of the mesotrophy lake ecosystem.

Eel grass acrial part in winter is dead, survives the winter with hibernaculum or seed, and begin to sprout from hibernaculum or seed spring; And beginning is slowly grown with the temperature rises, and be fast growing period summer, and maximum biomass generally occurs in September; Be 5～August flowering stage, and fruiting period is 8～October.The eel grass light saturation point is low than other submerged plants such as Haloragidaceae Myriophyllum spicatum and hornwort etc., under lower luminous environment, can grow fast, breed.Its powerful root system can live in the mobile water body it with soft banded leaf well, even in the bigger habitat, streams of flow velocity, also can survive.

Eel grass has multiple breeding strategies such as sexual and asexual.Eel grass is a dioecism, and by means of air and current diffusion, male flower possibly be captured to female flower perianth the inside and accomplish pollinating process male flower when temporarily being flooded by ripples at the water surface.Accomplish the anthocaulus helical form that passes flower pollination back female flower and regain, develop into fruit under water.In evening summer or early autumn, some fruits break, and discharge seed, drop on maternal plant near.Hibernaculum is the most important vegetative propagation organ of eel grass.Since spring; Second internode elongation of hibernaculum forms a root-like stock, and root-like stock forms the filamentous young shoot of a densification very soon, and young shoot is upwards sprouted greenery and carried out photosynthesis; Grow downwards and must from matrix, absorb nutrition by the shape root, so promptly form the eel grass maternal plant.Eel grass behind certain phase, from or several root-like stocks of root generation lateral growth, produces new seedling at growth of seedling on the stem, form ramet.

Summary of the invention

The method that the purpose of this invention is to provide the quick field planting of a kind of eel grass.This method has good effect to eel grass in darker water body field planting, recovers in conjunction with other submerged plants, can effectively improve the submerged vegetation species diversity, improves the aquatic ecosystem structure, promotes the ecosystem stable.

To achieve these goals, this method comprises the following steps:

1. eel grass is chosen

Choose eugonic eel grass, plant height 15～30cm;

2. with static line with the eel grass secured in parallel in dead lever middle part;

3. have the bamboo pole of joint to entangle dead lever top with the bottom is hollow, vertically insert water bottom, the dead lever bottom is pressed in the matrix fixing;

4. bamboo pole is vertically extracted, and eel grass is colonizated on the matrix through dead lever.

Operation principle of the present invention:

Eel grass is fixed in dead lever middle part, by the hollow dead lever top of entangling, bamboo pole bottom, and dead lever is pressed in the water body matrix, thereby eel grass is colonizated on the water body matrix by means of dead lever by bamboo pole bottom joint.This invention uses dead lever to be intermediary, and indirect field planting eel grass has reduced artificially the destruction to the root system of eel grass.By long bamboo pole field planting eel grass, make the eel grass can also can successful field planting in the profundal zone that people can't set foot in.

The present invention has advantage and good effect:

1, method is simple, and is with low cost, brings notable results;

2, effectively improve water quality, improve water transparency;

3, be applicable to multifarious recovery engineering of lake aquatic vegetation and water plants thereof or lake aquatic ecosystem ecological restoration engineering.

Description of drawings

Fig. 1 eel grass deep water field planting sketch map.

Among the figure:

1-eel grass;

2-static line;

3-dead lever;

4-bamboo pole;

5-bamboo pole joint.

Embodiment

Specify below in conjunction with accompanying drawing and embodiment:

One, method

1, eel grass is chosen

Choose the eel grass in grow vigorous and the waters that cover degree is high, eel grass is uprooped, the clone individual plant of choosing plant height 15～30cm is as field planting eel grass 1.

2, dead lever

Collect the waste and old throwaway chopsticks in restaurant, be about into 15cm as dead lever 3.

3, static line

Static line 2 adopts cotton cord, and with repeatedly looseness winding method is with parallel dead lever 3 middle parts that are bundled in of eel grass 1 base portion, the binding dynamics is moderate, to prevent eel grass 1 impaired being advisable.

4, the field planting bamboo pole is made

The bamboo pole that selection bottom internal diameter is about 1cm is as field planting bamboo pole 4, and it is long that bamboo pole 4 bottoms and next-door neighbour's joint 5 keeps 5cm, and the bottom redundance cuts away along transverse cross-section parallel; Bamboo pole 4 length can be confirmed according to the field planting depth of water of eel grass.

5, eel grass field planting

The bottom hollow position of bamboo pole 4 is inserted on the top of the dead lever that is fixed with eel grass 13, again bamboo pole 4 is inserted water bottom, it is 5 stressed in dead lever 3 tops that the bamboo pole of bamboo pole 4 saves, thereby make eel grass 1 by means of dead lever 3 on the field planting water body matrix.

6, be the piece field planting

Repeat above-mentioned steps, by every separated 30cm left and right sides field planting one strain eel grass.

7, final-period management

Regularly this planting engineering is managed, the place that density is lower is reseeded.

Two, test situation

Planted 16m in the West Lake, Hangzhou with the method in October, 2010 ²Eel grass is also obtained good result.

Claims (1)

1. the method for the quick field planting of eel grass is characterized in that comprising the following steps:

1. eel grass (1) is chosen;

Choose the eel grass (1) in the vigorous and waters that cover degree is high of growth, eel grass (1) is uprooped, the clone individual plant of choosing plant height 15～30cm is as field planting eel grass (1):

2. use static line (2) with eel grass (1) secured in parallel in dead lever (3) middle part;

Collect the waste and old throwaway chopsticks in restaurant, be about into 15cm as dead lever (3);

Static line (2) adopts cotton cord, and with repeatedly looseness winding method is with parallel dead lever (3) middle part that is bundled in of eel grass (1) base portion, the binding dynamics is moderate, and is impaired to prevent eel grass (1);

3. have the bamboo pole of joint to entangle dead lever (3) top with the bottom is hollow, vertically insert water bottom, dead lever (3) bottom is pressed in the matrix fixing;

The bamboo pole that selection bottom internal diameter is about 1cm is as field planting bamboo pole (4), and it is long that bamboo pole (4) bottom and next-door neighbour's joint (5) keeps 5cm, and the bottom redundance cuts away along transverse cross-section parallel; Bamboo pole (4) length is confirmed according to the field planting depth of water of eel grass (1);

4. bamboo pole (4) is vertically extracted, and eel grass is colonizated on the matrix through dead lever (3);

The bottom hollow position of bamboo pole (4) is inserted on the top that will be fixed with the dead lever (3) of eel grass (1); Again bamboo pole (4) is inserted water bottom; The bamboo pole of bamboo pole (4) joint (5) is stressed in dead lever (3) top, thereby makes eel grass (1) by means of dead lever (3) on the field planting water body matrix;

5. be the piece field planting;

Repeat above-mentioned steps, by every separated 30cm left and right sides field planting one strain eel grass.

Images