CN106973660A - A kind of method for safeguarding that the changeable Regional Biodiversity of the hydrology is stable - Google Patents

A kind of method for safeguarding that the changeable Regional Biodiversity of the hydrology is stable Download PDF

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Publication number
CN106973660A
CN106973660A CN201710068244.7A CN201710068244A CN106973660A CN 106973660 A CN106973660 A CN 106973660A CN 201710068244 A CN201710068244 A CN 201710068244A CN 106973660 A CN106973660 A CN 106973660A
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China
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submerged plant
changeable
planting
hydrologic condition
region
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CN201710068244.7A
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Chinese (zh)
Inventor
韩翠敏
郭浩宇
王孝贤
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Jiangsu Jiangda Environment Technology Co Ltd
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Jiangsu Jiangda Environment Technology Co Ltd
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Priority to CN201710068244.7A priority Critical patent/CN106973660A/en
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G22/00Cultivation of specific crops or plants not otherwise provided for

Abstract

The invention belongs to ecological restoration technical field, and in particular to a kind of method for safeguarding that the changeable Regional Biodiversity of hydrologic condition is stable, and the changeable region submerged plant screening varieties of hydrologic condition are carried out first;Then the selection of the changeable region submerged plant seedling of hydrologic condition, planting patterns and planting density is carried out;Finally carry out the changeable region Submerged plant communities configuration of hydrologic condition;Planting experiment area is selected in the changeable region of hydrologic condition to be safeguarded, seedling selection, planting patterns and the planting density that the submerged plant determined is combined to the submerged plant kind filtered out carry out the comparative study experiment of various combination, finally preferably go out to be best suitable for the Submerged plant communities configuration in the changeable region of hydrologic condition to be safeguarded;Not only cost is low by the present invention, energy-conserving and environment-protective, and configures the very effective stabilization that safeguard the changeable Regional Biodiversity of hydrologic condition of energy by Submerged plant communities.

Description

A kind of method for safeguarding that the changeable Regional Biodiversity of the hydrology is stable
Technical field
The invention belongs to ecological restoration technical field, and in particular to one kind safeguards that the changeable Regional Biodiversity of the hydrology is stable Method.
Background technology
Submerged plant is important primary producer in aquatic ecosystem, in water in occupation of the key sequence boundary of shallow water body Play the role of in the raw ecosystem irreplaceable.
Submerged plant can absorb the nutrients such as the nitrogen phosphorus in water body, and to safeguarding lake ecosystem, control lake is rich Nutrient laden has the important ecological value;Submerged plant not only influence fish in dampening, planktonic organism, the composition of zoobenthos and Distribution, and can play a part of disappearing unrestrained and purify water.
The hydrology is one of most important environmental factor of Water-environment Ecological System, health and complete extremely pass to aquatic ecosystem It is important.The hydrology mainly includes two aspects:Water level and current, the two can all make a significant impact on submerged plant.
Water level promoting can be influenceed under water using illumination etc., and then influences growth and the spatial distribution of submerged plant;Water level Reduction can make submerged plant adult or brood body by arid or extreme temperature;Current increase, and substrate is disturbed larger, is conducive to Substrate settling flux, declines water transparency, is unfavorable for submerged plant growth.
Different plants is under the changeable region of the hydrology, and there were significant differences for biomass and survival ability.Therefore, closed for selection Suitable submerged plant kind is the important prerequisite for maintaining the changeable Regional Biodiversity of the hydrology stable.
The content of the invention
In view of the shortcomings of the prior art, the present invention is intended to provide a kind of safeguard what the changeable Regional Biodiversity of the hydrology was stablized Method, the changeable region of hydrologic condition is safeguarded by selecting suitable submerged plant kind to be planted in the changeable region of the hydrology so as to reaching The stable effect of bio-diversity.
To solve the above problems, the present invention provides following technical scheme:One kind safeguards the changeable Regional Biodiversity of the hydrology Stable method, is comprised the following steps that:
Step one, the changeable region submerged plant screening varieties of hydrologic condition;The changeable region of the hydrology for treating maintenance first is entered Row on-site inspection, then selectes planting experiment area in the changeable region of hydrologic condition to be safeguarded, a variety of submerged plants is contrasted Development test, filters out the submerged plant kind for being adapted to be grown in the changeable region of hydrologic condition to be safeguarded;
Step 2, the selection of the changeable region submerged plant seedling of hydrologic condition, planting patterns and planting density;Waiting to safeguard Planting experiment area is selected in the changeable region of hydrologic condition, and different seedlings, different plantation sides are chosen to the submerged plant kind filtered out Formula and different planting densities carry out grouping comparison experiment, it is determined that in the submerged plant of the changeable ecological region planting of hydrologic condition to be safeguarded Seedling, planting patterns and planting density;
Step 3, the changeable region Submerged plant communities configuration of hydrologic condition;It is selected in the changeable region of hydrologic condition to be safeguarded Planting experiment area, seedling selection, plantation side to the submerged plant that is determined in the submerged plant kind combination step 2 that filters out Formula and planting density carry out the comparative study experiment of various combination, finally preferably go out to be best suitable for the changeable region of hydrologic condition to be safeguarded Submerged plant communities configuration.
Further, the submerged plant kind includes close tooth eel grass, Potamogeton maackianu and Haloragidaceae Myriophyllum spicatum;Micro- tooth eye Dish and Haloragidaceae Myriophyllum spicatum are from caulody that is in the same size, being without branch, highly 10~20cm, and close tooth eel grass selects 10~20cm Seedling;The planting patterns of the submerged plant is planted for arc;The planting density of the submerged plant is 10~15cm of spacing × 5~10cm density, 2~4 plants/clump.
Further, described Submerged plant communities are configured to close tooth eel grass-Potamogeton maackianu-Honoka fox-brush.
Beneficial effect:Not only cost is low by the present invention, energy-conserving and environment-protective, and can be highly effective by Submerged plant communities configuration The stabilization for safeguarding the changeable Regional Biodiversity of hydrologic condition.
Brief description of the drawings
Fig. 1 is that different submerged plant kinds are fluctuated by the hydrology in submerged plant screening varieties in the specific embodiment of the invention Under the influence of each test group total biomass contrast chart.
Fig. 2 is that different submerged plant kinds are influenceed by current in submerged plant screening varieties in the specific embodiment of the invention Under each test group total biomass contrast chart.
Fig. 3 is different submerged plants of each test group under the different community collocations of submerged plant kind in the specific embodiment of the invention Survival rate contrasts chart.
Fig. 4 is three kinds of submerged plant arc planting patterns schematic diagrames in the specific embodiment of the invention.
Embodiment
The embodiment of the present invention is illustrated below according to not be the same as Example:
Embodiment 1, the present embodiment is Wuxi City, Jiangsu Province tribute using the live planting experiment of outdoor natural water, test site The changeable region of arm of lake wetland park hydrologic condition.
According to tribute arm of lake wetland park hydrologic condition it is changeable the characteristics of, it is to be screened with reference to local indigenous submerged plant kind Kind has:P.malaianus, black algae, close tooth eel grass, Potamogeton maackianu and Haloragidaceae Myriophyllum spicatum.
Step one, the screening of the changeable region submerged plant kind of tribute arm of lake wetland park hydrologic condition:To be screened is sunk Water plant variety carries out comparative study experiment
1), the submerged plant kind interference performance of resistance to water-level fluctuation contrast test to be screened, concrete operations are as follows for experiment:
Submerged plant kind to be screened is planted in high 15cm, diameter 20cm rubber bucket respectively, filled in rubber bucket There are 12cm lake muds, choose stormy waves smaller area, 4 row's timbers are set, often arranging above timber has fastener for connection, will plant planting submerged plant Rubber bucket be suspended on steel pipe, spiling sets the fixed depth of water 0.5m of rubber bucket, and second group of timber sets 2.0m, it is considered to To tribute fluctuation of lake level amplitude, the 3rd group of timber rubber bucket sets starting depth of water 0.5m, with 0.5m/5d frequency toward declining, extremely Again with 0.5m/5d frequency toward up-regulation after 2.0m, the 4th group of timber rubber bucket is then on the contrary, the starting depth of water is 2.0m, with 0.5m/5d Frequency toward up-regulation, to 0.5m, with 0.5m/5d frequency toward decline.Four groups of every kind of plant point, 0.5m fixes water level, 2.0m Fixed water level, 0.5m/2.0m fluctuation water levels and 2.0m/0.5m fluctuation water levels, each bucket plant 10 plants, and every group three are parallel, with Individual plant is repetition.
During off-test, each intact plant is harvested respectively, is rinsed well with running water, determine the total biomass of every kind of plant Dry weight characterizes test group vegetation growth state (data result is as shown in Fig. 1).
It can be drawn by data result:
A. under water level frequent fluctuation, the morphological feature and biomass of submerged plant are different because of species;
B. Potamogeton maackianu, Haloragidaceae Myriophyllum spicatum are the beneficiaries of water-level fluctuation, and appropriate water-level fluctuation is conducive to it to grow; Close tooth eel grass is influenceed by water-level fluctuation, and total biomass increased;P.malaianus are influenceed by water-level fluctuation, and growth is steady in two Determine between the depth of water;
C. black algae is influenceed by water-level fluctuation, and growth is suppressed, and is relatively adapted to stable ambient growth.
Finally draw:The resistance to water-level fluctuation interference energy of each submerged plant kind in the changeable region of tribute arm of lake wetland park hydrologic condition Power is strong and weak:The black algae > p.malaianus of the close tooth eel grass > Haloragidaceae Myriophyllum spicatums > of Potamogeton maackianu >.
The water-fast stream interference performance contrast test of submerged plant kind 2) to be screened is tested, concrete operations are as follows:
Submerged plant kind to be screened is planted in 53.5 × 40 × 15cm white plastic frame respectively, frame of plastic dress There are 12cm lake muds, the frame of plastic of kind of planting submerged plant be placed in the variable submerged plant planting groove of flow velocity, the 1m depth of waters are added water to, By the device at intervals of three regions, by using the connection pump of different capacity, flow water, it is ensured that current are basic, normal, high by three Individual interval (0.05m/s, 0.15m/s, 0.3m/s), is set to T1, T2, T3, each 20 plants of planting in interval, is attached most importance to individual plant It is multiple.
During off-test, each intact plant is harvested respectively, is rinsed well with running water, determine the total biomass of every kind of plant Dry weight characterizes test group vegetation growth state (data result is as shown in Fig. 2).
It can be drawn by data result:
A. low flow velocity influences smaller to each submerged plant kind, with the increase of water flow velocity, each submerged plant breed organism Amount has been reduced;
B. in middle flow rate water body, Potamogeton maackianu and suppleness preferably, can adapt to water impact quickly, eel grass, black Easily there is disconnected branch in algae and Haloragidaceae Myriophyllum spicatum;
C. during high flow rate, the growth of each submerged plant kind is all substantially suppressed.
Finally draw:Each submerged plant kind in the changeable region of tribute arm of lake wetland park hydrologic condition is water-fast, and stream interference performance is strong It is weak:The close black algaes of tooth eel grass > of p.malaianus > Potamogeton maackianu > Haloragidaceae Myriophyllum spicatums >.
Step 2, selectes planting experiment area, to different submerged plants in the changeable region of tribute arm of lake wetland park hydrologic condition Kind chooses different seedlings, Different Ways of Planting and different planting densities and carries out grouping comparison experiment, show that tribute arm of lake wetland is public The selection of the changeable region submerged plant seedling of garden hydrologic condition, planting patterns and planting density is specific as follows:It is Haloragidaceae Myriophyllum spicatum, black Algae, Potamogeton maackianu and p.malaianus are selected from caulody in the same size, without branch, 10~20cm of height, close tooth eel grass 10~20cm seedling, plantation density is planted with spacing 10~15cm × 5~10cm density, 2~4 plants/clump using arc.
In summary, in the changeable region of tribute arm of lake wetland park hydrologic condition, submerged plant kind is with Potamogeton maackianu, fringe Flower watermifoil and close tooth eel grass based on, Haloragidaceae Myriophyllum spicatum, Potamogeton maackianu from it is in the same size, without branch, height 10~20cm Caulody, close tooth eel grass select 10~20cm seedling, planting density is with spacing 10~15cm × 5~10cm density, 2~4 Strain/clump, is planted using arc, and submerged plant can keep preferable upgrowth situation, maintains stable bio-diversity.
Step 3, the configuration of tribute arm of lake wetland park hydrologic condition changeable region Submerged plant communities, for Potamogeton maackianu, Three kinds of submerged plants of Haloragidaceae Myriophyllum spicatum and close tooth eel grass carry out various combination comparative study experiment, and concrete operations are as follows:
The changeable region of tribute arm of lake wetland park hydrologic condition select planting experiment area, respectively build T1 (close thorn eel grass), T2 (Haloragidaceae Myriophyllum spicatum), T3 (Potamogeton maackianu) simple community, (close thorn is bitter by T4 (close thorn eel grass-Haloragidaceae Myriophyllum spicatum group), T5 Grass-Potamogeton maackianu group), (close thorn eel grass-Haloragidaceae Myriophyllum spicatum-is micro- by T6 (Haloragidaceae Myriophyllum spicatum-Potamogeton maackianu group) and T7 Tooth bog pondweed group), by planting in big frame of plastic, hang on timber, every group three are parallel, observe its growth, with Search out optimal community collocation.The total weight in wet base of phytomass is 60g in every group, and mean allocation is in each plant, seedling selection, plantation Mode and planting density are carried out by above-mentioned requirements.
According to each total survival rate for the treatment of group plant, it can be seen that three kinds of submerged plants are in hydrology variable region in simple community Tolerance is respectively close thorn eel grass>Haloragidaceae Myriophyllum spicatum>Potamogeton maackianu.In Liang Zhong plant societys group, with it is close thorn eel grass and Haloragidaceae Myriophyllum spicatum group is dominant, higher than other two kinds combinations of survival rate.Three kinds of submerged plant combinations, survival rate is all higher than other Configuration combination, survival rate improves 17.7%~42.7% (data result is shown in Fig. 3).
Summary, in the changeable region of tribute arm of lake wetland park hydrologic condition, submerged plant kind is with Potamogeton maackianu, fringe Based on flower watermifoil and close tooth eel grass, with spacing 10~15cm × 5~10cm density, 2~4 plants/clump, arcuate motion is planted, Haloragidaceae Myriophyllum spicatum, Potamogeton maackianu and p.malaianus are from caulody in the same size, without branch, 10~20cm of height, close tooth Eel grass selects 10~20cm seedling, using close thorn eel grass-Potamogeton maackianu-Haloragidaceae Myriophyllum spicatum community collocation, can strengthen it and support Water resistant text changing capability, improves its survival rate, helps to maintain the stabilization of ecological diversity.
It the foregoing is only some embodiments of the present invention, the embodiment being not all of, ordinary skill people Member, by any equivalent change read description of the invention and taken technical solution of the present invention, is the right of the present invention It is required that being covered.

Claims (3)

1. a kind of method for safeguarding that the changeable Regional Biodiversity of hydrologic condition is stable, the phase is characterised by, comprises the following steps that:
Step one, the changeable region submerged plant screening varieties of hydrologic condition;The changeable region of the hydrology for treating maintenance first is carried out in fact Ground is investigated, and then selectes planting experiment area in the changeable region of hydrologic condition to be safeguarded, comparative study is carried out to a variety of submerged plants Experiment, filters out the submerged plant kind for being adapted to be grown in the changeable region of hydrologic condition to be safeguarded;
Step 2, the selection of the changeable region submerged plant seedling of hydrologic condition, planting patterns and planting density;In the hydrology to be safeguarded Planting experiment area is selected in the changeable region of condition, the submerged plant kind that filters out is chosen different seedlings, Different Ways of Planting and Different planting densities carry out grouping comparison experiment, it is determined that the kind of the submerged plant in the changeable ecological region planting of hydrologic condition to be safeguarded Seedling, planting patterns and planting density;
Step 3, the changeable region Submerged plant communities configuration of hydrologic condition;In the selected plantation in the changeable region of hydrologic condition to be safeguarded Trial zone, to the seedling selection of the submerged plant that is determined in the submerged plant kind combination step 2 that filters out, planting patterns and Planting density carries out the comparative study experiment of various combination, finally preferably goes out to be best suitable for the heavy of the changeable region of hydrologic condition to be safeguarded Water community arrangement.
2. a kind of method for safeguarding that the changeable Regional Biodiversity of hydrologic condition is stable according to claim 1, its feature It is:The submerged plant kind includes close tooth eel grass, Potamogeton maackianu and Haloragidaceae Myriophyllum spicatum;Potamogeton maackianu and Honoka fox-brush Algae selects 10~20cm seedling from caulody that is in the same size, being without branch, highly 10~20cm, close tooth eel grass;It is described heavy The planting patterns of water plant is planted for arc;The planting density of the submerged plant is close for spacing 10~15cm × 5~10cm's Degree, 2~4 plants/clump.
3. a kind of method for safeguarding that the changeable Regional Biodiversity of hydrologic condition is stable according to claim 1 or 2, it is special Levy and be:Described Submerged plant communities are configured to close tooth eel grass-Potamogeton maackianu-Honoka fox-brush.
CN201710068244.7A 2017-02-07 2017-02-07 A kind of method for safeguarding that the changeable Regional Biodiversity of the hydrology is stable Pending CN106973660A (en)

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