CN102511257A - Regulating and controlling method for bogginess of grass type shallow lake based on synergic decomposing effect of plant residues - Google Patents
Regulating and controlling method for bogginess of grass type shallow lake based on synergic decomposing effect of plant residues Download PDFInfo
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- CN102511257A CN102511257A CN2011103608960A CN201110360896A CN102511257A CN 102511257 A CN102511257 A CN 102511257A CN 2011103608960 A CN2011103608960 A CN 2011103608960A CN 201110360896 A CN201110360896 A CN 201110360896A CN 102511257 A CN102511257 A CN 102511257A
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Abstract
The invention aims at bogginess caused by the small decomposing rate and the strong biological filling action of plant residues in a grass type shallow lake and provides a regulating and controlling method for bogginess based on a synergic decomposing effect between aquatic plant residues. Firstly, main dominant plants triggering the quick bogginess of a grass type lake and the silt decomposing capability thereof are determined in a target area, and the biomass proportion of different plants under the condition of maximizing the synergic decomposing effect is obtained by test. The biomass proportion is used as a basis in the target area, and a traditional plant situation in a boggy area is changed, so that the decomposition of the residues of dominant bog plants in water is quickened, the biological accumulating and filling action of the residues of the dominant bog plants is suppressed, and the trend of bogginess is delayed. The method is simple and convenient to operate and is economical and feasible, the defects of high cost and low efficiency of the modes of mechanical harvesting, manual dredging and the like are overcome, and the water environment of a lake and the ecological current situation of water can be obviously improved. The method has a certain popularizing and using value.
Description
Technical field
The present invention relates to the environmental ecology field, is a kind of careless type shallow lake bogginess control technique based on the collaborative destructive effect of plant residue specifically.The present invention passes through the residual body decomposition rate after definite different plant matched combined, designs a kind of new embedding plants integrated mode in the comparatively serious lake region of bogginess, utilizes the collaborative destructive effect of plant residue under this pattern, containment bogginess trend.
Background technology
About shallow lake bogginess control, states such as Japan, Canada, China all have relevant patented technology at present, and wherein the application of technical measures such as mechanical harvesting, artificial desilting, enclosure purification is comparatively extensive.Publication number is the weed cutting machine that the novel practical patent of 201004818Y has been announced a kind of hob type, and it is little to have size, and flexible operation is easy to operate, and harvesting efficiency is high, characteristics such as non-secondary pollution.Publication number is that the patent of invention of 101591131A shifts, transforms and degrade the pollutant in the bed mud through in water body, throwing in composite bacteria agent capable; Promote diversification of bed mud mud layer benthon population and abundantization; The bottom mud in lake pollutant is reduced and inorganicization; Thereby play the effect that bed mud is cut down, have the human and material resources of saving, financial resources, can avoid the characteristics of secondary pollution.Publication number be the patent of invention of 1631822A proposed a kind of riverway sludge on the spot resource utilize method; This method replants the aquatic vegetation type of certain economic value behind original vegetation in removing the river course; Utilize botanical system or plant-aquatile system to transform the eutrophication mud composition of removing in the mud; Take away the pollutant component in the mud through hydrobiological fishing for the results of aquatic economic crops; The mode that changes the water plants habitat through the part suppresses its growth, has certain economic and is worth.The patent of invention of CN1163861A designs the cleaning system in a kind of lake and marsh; Through target lake or marsh are isolated into a special water treatment zone; From water treatment zone, draw water then, from water, separate and clear out of pollutant, will purify waste water at last is discharged into outside the above-mentioned water treatment zone.This method provides a whole set of to purify the equipment in lake and marsh, can improve the water quality of the enclosed waters that has big water gaging more effectively, more reliably.From present result of study; The mechanization mode is gathered in accumulation and the release that submerged plant can be limited lake endogenous property endogenous nutrient loads, reduces secondary pollution, suppresses biology and fills and leads up effect; The control bogginess; But to triggering the large-scale emergent aquactic plant reed of bogginess, harvesting has increased stem density and has used harvesting or weed killer herbicide can't reach the long-term control to reed separately.Adopt artificial mode of isolating the waters can significantly improve the water quality in zone, marsh, but fundamentally do not solve the problem that large-scale aquatic vascular plant spreads, and the method Financial cost is higher, is unfavorable for promoting on a large scale.The present invention is conceived to the comprehensive regulation of careless type lakes and swamps, starts with from the collaborative decomposition general layout of design water plants, has the novelty of theory and technology, and certain impetus is played in the north careless type lakes and swamps comprehensive regulation.
Summary of the invention
The objective of the invention is to: the collaborative decomposition of utilizing each plant species; In the waters of certain limit, plant dissimilar very water, floating leaf and submerged plant in proportion; Make rapid, a large amount of decomposition of the plant residue that is in decline phase, reduce siltation volume, weaken its effect of filling and leading up lakebed.The invention is characterized in: the difference according to the plant decomposition rate can be confirmed the bogginess dominant plant, thereby formulates bogginess control scheme targetedly; The principle of interspecies competition is carried out plants configuration in the utilization ecology; Adopt very water--floating leaf--heavy water, very water--heavy water, floating leaf---submerged plant is inlayed integrated mode; Give full play to the competitive inhibitory effect between different plant populations in vegetative period, can accelerate the plant residue decomposition rate at decline phase.
The present invention compared with present technology, its benefit is: this technology adopts the ways and means of pure ecology, required plant is lake background plant; Be easy to into alive behind the plant cultivating; Do not influence the original ecological functions in lake, Financial cost is low, is easy in careless type shallow lake, promote the use of.
Principle and embodiment
Below specify principle of the present invention and embodiment:
Principle of the present invention: there is synergistic effect in the residual body of water plants in the middle of the process of decomposing.According to the certain biomass ratio, in the bogginess zone, carry out turning to the plants configuration of target with collaborative resolution ratio maximum, can effectively suppress the accumulation of the residual body of aquatic vascular plant, the aggravation of the careless type lakes and swamps degree of containment.
Embodiment is following: at first the very water in the target area, floating leaf and submerged plant population are carried out field investigation, confirm to trigger the dominant plant of bogginess; Gather different plant samples and air-dry, obtain its dry weight value, in vegetative period and decline phase, continue to monitor the decomposition rate of different plants, carry out analysis of threshold for the different factors that influence the plant resolution ratio (like total N, always P, water-level fluctuation and water temperature etc.); In the target area, plant very water, floating leaf, submerged plant according to different biomass ratios, confirm that each plant species decomposition rate is the fastest, the collaborative maximized biomass ratio of destructive effect between plant; Carry out the plants configuration in the target area according to above-mentioned biomass ratio, it is bigger to make under this kind pattern that the dominant plant in the bogginess zone can remain resolution ratio, and the less state of residual body cumulant slows down the bogginess trend in lake with this;
Embodiment 1
North China Plain Haihe basin section, main water plants comprises reed, lotus, Potamogeton pectinatus L.It is slow, poor with extraneous exchange capacity that this sheet waters water body flows, and residual body decomposition rate is extremely slow after the water plants death, and its degree of peat formation is presented as that stronger biology fills and leads up effect.The target area is divided into check plot and proportional arrangement district, in the proportional arrangement district, according to 3: 1: 1 ratio of biomass, in the target area, plants lotus, reed and Potamogeton pectinatus L, the bogginess regulating effect is as shown in table 1:
The contrast of table 1 bogginess regulating effect
| Resolution ratio/year deposition thickness | The lotus resolution ratio | The reed resolution ratio | Castor tooth resolution ratio | Year deposition thickness |
| The check plot | 76％ | 63％ | 67％ | 0.40cm |
| The proportional arrangement district | 92％ | 85％ | 89％ | 0.15cm |
Embodiment 2
Nan Si Lake basin section because a large amount of dischargings of sanitary sewage and agriculture rainwash, makes N in the water body, P severe overweight to cause emergent aquactic plant lotus, cattail then, and submerged plant hornwort, Potamogeton pectinatus L growing way are vigorous.When the ratio of the biomass of four plant species was respectively 3: 1: 0.5: in the time of 0.5, collaborative destructive effect is maximum, and in this ratio serike in the target area, effect is as shown in table 2:
The contrast of table 2 bogginess regulating effect
| Resolution ratio/year deposition thickness | The lotus resolution ratio | The cattail resolution ratio | The hornwort resolution ratio | Castor tooth resolution ratio | Year deposition thickness |
| The check plot | 64％ | 73％ | 65％ | 71％ | 0.36cm |
| The proportional arrangement district | 88％ | 92％ | 81％ | 86％ | 0.21cm |
Claims (3)
1. careless type shallow lake bogginess regulate and control method based on the collaborative destructive effect of plant residue; It is characterized in that: in the bogginess zone, utilize lake background plant to inlay combination, form the collaborative destructive effect between the different plant corpuss; Significantly increase the decomposition rate of various water plants; Effect is filled and led up in the accumulation that weakens plant residue, keeps the original ecological functions in lake, the regulation and control bogginess.
2. method according to claim 1; It is characterized in that: the aquatic vegetation that at first carries out large scale in the target area distributes and investigates; Confirm contribution rate and the decomposition rate of every plant species to bogginess; Through monitoring, obtain the ratio of the biomass under the destructive effect maximization condition to collaborative resolution ratio behind the different plant societys.
3. method according to claim 1 is characterized in that: the ratio with above-mentioned biomass is foundation, in the target area, carries out the transplanting of plant, can effectively accelerate the plant residue decomposition rate, reduces the biomass accumulation, containment bogginess trend.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103608960A CN102511257A (en) | 2011-11-15 | 2011-11-15 | Regulating and controlling method for bogginess of grass type shallow lake based on synergic decomposing effect of plant residues |
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| CN2011103608960A CN102511257A (en) | 2011-11-15 | 2011-11-15 | Regulating and controlling method for bogginess of grass type shallow lake based on synergic decomposing effect of plant residues |
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Citations (4)
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|---|---|---|---|---|
| CN1480411A (en) * | 2003-07-18 | 2004-03-10 | 中山大学 | Method for reconditioning water body in eutrophication through plants |
| CN101880088A (en) * | 2010-07-07 | 2010-11-10 | 国家城市给水排水工程技术研究中心 | Aquatic plant compositing technology used for reclaimed water and landscape waterbody eco-remediation |
| CN101962947A (en) * | 2009-07-23 | 2011-02-02 | 中国林业科学研究院林业研究所 | Method for restoring slash type degraded wetland |
| CN101968874A (en) * | 2010-09-06 | 2011-02-09 | 北京师范大学 | Identification technology of surface-water body vegetation importance value of lake swampiness degree |
-
2011
- 2011-11-15 CN CN2011103608960A patent/CN102511257A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1480411A (en) * | 2003-07-18 | 2004-03-10 | 中山大学 | Method for reconditioning water body in eutrophication through plants |
| CN101962947A (en) * | 2009-07-23 | 2011-02-02 | 中国林业科学研究院林业研究所 | Method for restoring slash type degraded wetland |
| CN101880088A (en) * | 2010-07-07 | 2010-11-10 | 国家城市给水排水工程技术研究中心 | Aquatic plant compositing technology used for reclaimed water and landscape waterbody eco-remediation |
| CN101968874A (en) * | 2010-09-06 | 2011-02-09 | 北京师范大学 | Identification technology of surface-water body vegetation importance value of lake swampiness degree |
Non-Patent Citations (5)
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| 吴庆龙等: "东太湖沼泽化防治对策研究", 《上海环境科学》, vol. 19, no. 8, 15 August 2000 (2000-08-15), pages 355 - 357 * |
| 王丽卿等: "6种沉水植物系统对淀山湖水质净化效果的研究", 《农业环境学学报》, vol. 27, no. 3, 20 May 2008 (2008-05-20), pages 1134 - 1139 * |
| 谷孝鸿等: "东太湖水生植物群落结构的演变及其沼泽化", 《生态学报》, vol. 25, no. 7, 25 July 2005 (2005-07-25), pages 1541 - 1548 * |
| 金红华: "浅水湖泊沼泽化程度定量评价及其在东太湖的应用", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》, no. 5, 15 November 2007 (2007-11-15) * |
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Application publication date: 20120627 |