CN110754351A - Water depth optimization and rapid recovery method of scirpus planiculmis wetland under saline-alkali stress - Google Patents
Water depth optimization and rapid recovery method of scirpus planiculmis wetland under saline-alkali stress Download PDFInfo
- Publication number
- CN110754351A CN110754351A CN201911189116.3A CN201911189116A CN110754351A CN 110754351 A CN110754351 A CN 110754351A CN 201911189116 A CN201911189116 A CN 201911189116A CN 110754351 A CN110754351 A CN 110754351A
- Authority
- CN
- China
- Prior art keywords
- scirpus planiculmis
- water depth
- planiculmis
- scirpus
- saline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G31/00—Soilless cultivation, e.g. hydroponics
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/25—Root crops, e.g. potatoes, yams, beet or wasabi
Abstract
The invention relates to a method for optimizing and quickly restoring the water depth of a scirpus planiculmis wetland under the saline-alkali stress condition, which comprises the steps of collecting scirpus planiculmis corms for seedling culture, then sowing the seedlings in different culture bowls, placing the culture bowls in a water tank to manufacture a water depth gradient, and adding NaHCO with different concentrations3Culturing in Hoagland semi-nutrient solution of NaCl; and after the culture is finished, measuring the aboveground and underground biomass of the scirpus planiculmis, and analyzing the optimum water depth of the scirpus planiculmis under different saline-alkali concentrations. The results show that: when the concentration of saline alkali is high<10 g kg‑1When the water depth is-5-0 cm, the water depth is the optimum water depth for growing the scirpus planiculmis; when the concentration of saline alkali is high>10.0 g kg‑1In time, Scirpus planiculmis cannot survive, and needs to be improved before planting Scirpus planiculmis or other plants suitable for survival. The invention determines the growth of the scirpus planiculmis under different saline-alkali concentrations by researching the influence of water depth on the growth of the scirpus planiculmis under different saline-alkali stress degreesThe method has the advantages of effectively improving the biomass accumulation of the scirpus planiculmis, and being beneficial to the rapid field planting and recovery of scirpus planiculmis populations.
Description
Technical Field
The invention belongs to the technical field of ecological restoration, and particularly relates to a method for optimizing and quickly restoring the water depth of a scirpus planiculmis wetland under saline-alkali stress.
Background
Scirpus planiculmis (Bolboschoenus nipponicus) is a perennial herb of Scirpus in Cyperaceae, swamp and shallow water. The western wetland of Pinyin plain is a vital transit land on the route of the round-trip migration of the black and white crane (Grus leucogamus) in the spring and autumn, wherein large pieces of Scirpus planiculmis are distributed, and the underground corm is the main food source plant of the black and white crane. Therefore, the area and growth status of the Scirpus planiculmis population in the area are related to the fortune of the white crane. In addition, the scirpus planiculmis wetland is a key primary producer of the salt marsh wetland and is very important for the stability of the functions and the structure of the original ecological system.
However, due to the influence of climate change and human activities, the soil salinization is increasingly serious, the habitat of the scirpus planiculmis is seriously damaged, so that the outage and the food source of the white crane are gradually reduced, and the survival of the white crane is seriously threatened. When the wetland vegetation is protected and reconstructed, the determination of the optimal water level of the wetland with different salinization degrees to improve the plant aboveground biomass and the bulb biomass is a crucial link. However, at present, when the vegetation of the wetland is restored, the influence of the bulb burial depth and the water level fluctuation of the scirpus planiculmis on the aboveground biomass and the bulb biomass is mainly considered, few people pay attention to the optimal water level for the growth of the scirpus planiculmis under different saline-alkali degrees, and the restoration effect of the degraded wetland is limited to a certain degree. Therefore, the invention provides an optimal water level optimization method for the growth of scirpus planiculmis seedlings under different saline-alkali stress depths, which has important significance for the recovery efficiency of scirpus planiculmis and the protection of the agrimony habitat and food sources.
Disclosure of Invention
The invention aims to provide a water depth optimization method and a rapid recovery method of scirpus planiculmis wetland under saline-alkali stress.
In a first aspect, the invention provides a method for optimizing the water depth of a scirpus planiculmis wetland under the saline-alkali stress, which is specifically realized according to the following steps:
(1) collecting Scirpus planiculmis corms, and keeping the bulbs in dark and moist for later use;
(2) selecting healthy and complete corms with consistent growth vigor, washing the corms clean, and putting the corms in seedling pots for cultivation to obtain scirpus planiculmis seedlings;
(3) seeding the scirpus planiculmis seedlings in different culture bowls, culturing in a greenhouse, and filling washing sand in the culture bowls as a matrix; the planting depth of the scirpus planiculmis seedlings is 2-3 cm, and 5 corms are planted in each culture pot;
putting the culture pot into a 300L water tank, adding a culture solution to treat the scirpus planiculmis seedlings, and replacing the culture solution once a week, wherein the culture solution is added with NaHCO with different concentrations3(ii) Hoagland semi-nutrient solution of NaCl;
square bricks and foam boards are arranged in the water tank to adjust the water depth;
(4) after culturing for 4 weeks, harvesting the scirpus planiculmis plants, cleaning the overground parts and the underground parts of the scirpus planiculmis with clear water, drying to constant weight, and weighing to obtain the overground biomass and the underground biomass of the scirpus planiculmis;
(5) single factor analysis of variance with SPSS for NaHCO concentrations3And the influence of NaCl and water depth on the growth of the scirpus planiculmis seedlings is subjected to multiple comparison afterwards, and the water depth optimization of the scirpus planiculmis wetland under the saline-alkali stress of different concentrations is completed by adopting graph-based inspection.
In the step (2), watering every day to keep the water depth of 0-2 cm in the pot, and obtaining the scirpus planiculmis seedling with the height of 2-5 cm.
In the step (3), the height of the culture pot is 13cm, the inner diameter of the culture pot is 14cm, and the filling height of the washed sand matrix is 10 cm.
The Hoagland semi-nutrient solution comprises the following components in percentage by weight: 0.5mmol L-1NH4H2PO4、3mmol L-1K+、2mmolL-1Ca(NO3)2·4H2O、1mmol L-1MgSO4·7H2O、23.13μmol L-1H3BO3、4.57μmol L-1MnCl2·4H2O、0.382μmol L-1ZnSO4·7H2O、0.16μmol L-1CuSO4·5H2O、0.0695μmol L-1MoO3、9μmol L-1Fe-EDTA。
NaHCO in the nutrient solution3The amount of NaCl added was 5 concentration gradients of 0, 2.5, 5.0, 10.0, 20.0g kg-1。
Said NaHCO3And NaCl in a mass ratio of 2: 1.
In the step (3), 4 water depth gradients are set, wherein the water depth gradients are-5 cm, 0cm, 10cm and 20cm respectively, and the surface of the substrate is taken as a reference.
In a second aspect, the invention provides a method for rapidly recovering scirpus planiculmis wetland under saline-alkali stress, which comprises the following steps:
(1) burying the scirpus planiculmis seedling in the recovery land with the burying depth of 2-3 cm;
(2) detecting the saline-alkali concentration of the soil, wherein the saline-alkali concentration is less than 10g kg-1When the water is needed, the water depth is adjusted to-5-0 cm.
According to the invention, the influence of water levels under different saline-alkali stress degrees on the growth of the scirpus planiculmis seedlings is researched, the optimal water level for the growth of the scirpus planiculmis seedlings is determined, and different optimal water levels are selected for wetlands with different saline-alkali degrees in the process of restoring the saline-alkali wetland, so that the accumulation of the biomass of the scirpus planiculmis can be effectively promoted, the rapid field planting and the construction of scirpus planiculmis populations are facilitated, and the method is more targeted and has better effect; in addition, the invention carries out vegetation reconstruction from the angle formed by improving the aboveground biomass and underground bulbs of wetland plants, can better play the function of the wetland as a wild animal habitat, and has important significance for plant population renewal and expansion.
Drawings
FIG. 1 is a bar graph showing the effect of water depth on aboveground biomass and underground biomass of Scirpus planiculmis under different saline-alkali concentrations in the examples; influence of water depth under the same saline-alkali concentration on the overground biomass and the underground biomass of the scirpus planiculmis (average value +/-1 SE, n is 3); the lower case letters indicate that there is a significant difference in aboveground biomass and underground biomass between different water depths (cm) (P < 0.01).
Detailed Description
The embodiment takes the distribution area of goosefoot head and scirpus planiculmis in the west of Jilin as an example, and further explains the technical scheme of the invention.
Example 1
The invention relates to a method for optimizing the water depth of a scirpus planiculmis wetland under the salt-alkali stress, which comprises the following steps:
(1) digging Scirpus planiculmis corms in a Scirpus planiculmis distribution area in the west of Jilin, and keeping the Scirpus planiculmis corms in a dark and moist way to obtain Scirpus planiculmis corms to be planted;
(2) selecting healthy and complete corms with consistent growth vigor, washing the corms clean, placing the corms in a seedling pot, watering every day to keep the water depth of 0-2 cm in the pot, and growing seedlings in a greenhouse to obtain 2-5 cm high scirpus planiculmis seedlings;
(3) seeding scirpus planiculmis seedlings in a culture pot, wherein the culture pot is 13cm high and 14cm in inner diameter, and is filled with 10cm high-water washed sand;
the planting depth of the scirpus planiculmis seedlings is 2-3 cm, and 5 corms are planted in each culture pot;
placing the culture bowl into a large water tank (300L), adding 0, 2.5, 5, 10, 20g kg of the culture bowl-1NaHCO3+NaCl(NaHCO3Treating the scirpus planiculmis seedlings by using the Hoagland semi-nutrient solution with the NaCl mass ratio of 2:1), replacing the Hoagland semi-nutrient solution once a week, filling square bricks and foam boards in a water tank to realize water depths of-5 cm, 0cm, 10cm and 20cm, and carrying out the whole experiment in a greenhouse;
(4) after culturing for 4 weeks, harvesting the scirpus planiculmis plants, cleaning the overground parts and the underground parts of the scirpus planiculmis with clear water, drying to constant weight, and weighing to obtain the overground biomass and the underground biomass of the scirpus planiculmis;
(5) SPSS was used for single factor analysis of variance analysis of different NaHCO species3+ NaCl concentration andthe influence of the water depth on the growth of the scirpus planiculmis seedlings is subjected to graph-based inspection in multiple comparison afterwards, and the water depth optimization of the rapid recovery of the scirpus planiculmis wetland under different salt and alkali stress degrees is completed.
The Hoagland semi-nutrient solution comprises the following components in percentage by weight: 0.5mmol L-1NH4H2PO4、3mmol L-1K+、2mmolL-1Ca(NO3)2·4H2O、1mmol L-1MgSO4·7H2O、23.13μmol L-1H3BO3、4.57μmol L-1MnCl2·4H2O、0.382μmol L-1ZnSO4·7H2O、0.16μmol L-1CuSO4·5H2O、0.0695μmol L-1MoO3、9μmol L-1Fe-EDTA。
Example 2
This example specifically illustrates the experimental results of the water depth optimization method and the fast restoration method of scirpus planiculmis wetland in example 1.
The size of the aboveground biomass represents the capability of the plant to obtain resources such as illumination, oxygen and the like, the size of the underground biomass is mainly determined by the size of the bulb biomass to a certain extent, and the bulb represents the strength of the resource storage capability and the later generation multiplication capability of the scirpus planiculmis, so that the water depth with relatively large aboveground biomass and underground biomass is used as the optimal water level for the growth of the scirpus planiculmis under each saline-alkali concentration.
FIG. 1 shows the aboveground and underground biomass of Scirpus planiculmis treated by the method described in example 1. The difference of capital letters in the figure indicates the difference of the biomass of the scirpus planiculmis on the ground and the biomass of the scirpus planiculmis under the same saline-alkali concentration and different water levels (P < 0.05).
Statistical analysis showed that both aboveground and underground biomass of scirpus planiculmis were significantly affected by water depth (fig. 1). When the saline-alkali concentration is 0g kg-1The aboveground biomass and the underground biomass respectively reach maximum values when the water depth is 0cm and-5 cm, and the aboveground biomass and the underground biomass when the water depth is-5 cm are not obviously different from that when the water depth is 0 cm; when the saline-alkali concentration is 2.5g kg-1When the water depth is-5 cm and 0cm, the aboveground biomass reaches the maximum value when the water depth is-5 cm, but the aboveground biomass and the underground biomass have no significant difference between the water depth of-5 cm and the water depth of 0 cm; when the saline-alkali concentration is 5.0gkg-1The aboveground biomass and the underground biomass respectively reach maximum values when the water depth is 0cm and-5 cm, but no significant difference exists between the aboveground biomass and the underground biomass between the water depth of 0cm and the water depth of-5 cm; when the saline-alkali concentration is 10.0g kg-1When the biomass is used, the aboveground biomass and the underground biomass reach maximum values when the water depth is 10cm and-5 cm respectively, but the aboveground biomass does not have significant difference between the water depths of 10cm, 5cm and 0cm, and the underground biomass does not have significant difference between the water depths of-5 cm, 10cm and 20 cm; but when the saline-alkali concentration is more than 20g kg-1In time, Scirpus planiculmis cannot survive. This shows that, when the wetland vegetation is reconstructed, the water level is controlled to fluctuate in a proper range aiming at the wetlands with different salinization degrees, the productivity of the community on the scirpus planiculmis land and the formation and growth of underground nutrient bulbs can be promoted, the inhabitation environment for the water birds to live is recovered, and the purpose of protecting the biodiversity is achieved.
Therefore, comprehensively, in order to ensure the maximum biomass accumulation of the scirpus planiculmis plant and ensure the continuation of scirpus planiculmis population and maintain the habitat quality of the rhirpus planiculmis population, when the saline-alkali concentration is less than 10g kg-1When the water depth is-5-0 cm, the water depth is the optimum water level height for the growth of the water-level-adjustable water-; but when the saline-alkali concentration is more than 10.0g kg-1In time, Scirpus planiculmis cannot survive, and needs to be improved before planting Scirpus planiculmis or other plants suitable for survival. Therefore, when the plant recovery is carried out on the degraded saline marsh, the recovery work is carried out by selecting proper water depth aiming at the wetlands with different salinization degrees, and the maximum benefit of the recovery project is realized.
Claims (8)
1. The method for optimizing the water depth of the scirpus planiculmis wetland under the saline-alkali stress is characterized by comprising the following steps of:
(1) collecting Scirpus planiculmis corms, and keeping the bulbs in dark and moist for later use;
(2) selecting healthy and complete corms with consistent growth vigor, washing the corms clean, and putting the corms in seedling pots for cultivation to obtain scirpus planiculmis seedlings;
(3) seeding the scirpus planiculmis seedlings in different culture bowls, culturing in a greenhouse, and filling washing sand in the culture bowls as a matrix; the planting depth of the scirpus planiculmis seedlings is 2-3 cm, and 5 corms are planted in each culture pot;
putting the culture pot into a 300L water tank, adding a culture solution to treat the scirpus planiculmis seedlings, and replacing the culture solution once a week, wherein the culture solution is added with NaHCO with different concentrations3(ii) Hoagland semi-nutrient solution of NaCl;
square bricks and foam boards are arranged in the water tank to adjust the water depth;
(4) after culturing for 4 weeks, harvesting the scirpus planiculmis plants, cleaning the overground parts and the underground parts of the scirpus planiculmis with clear water, drying to constant weight, and weighing to obtain the overground biomass and the underground biomass of the scirpus planiculmis;
(5) single factor analysis of variance with SPSS for NaHCO concentrations3And the influence of NaCl and water depth on the growth of the scirpus planiculmis seedlings is subjected to multiple comparison afterwards, and the water depth optimization of the scirpus planiculmis wetland under the saline-alkali stress of different concentrations is completed by adopting graph-based inspection.
2. The method according to claim 1, wherein in step (2), the water is applied daily to maintain a water depth of 0-2 cm in the pot, thereby obtaining 2-5 cm high seedlings of Scirpus planiculmis.
3. The method as claimed in claim 1, wherein in the step (3), the culture pot is 13cm high and 14cm inner diameter, and the filling height of the rinsing sand matrix is 10 cm.
4. The method according to claim 1, wherein in step (3), the Hoagland semi-nutrient solution comprises the following components: 0.5mmol L-1NH4H2PO4、3mmol L-1K+、2mmol L-1Ca(NO3)2·4H2O、1mmol L-1MgSO4·7H2O、23.13μmol L-1H3BO3、4.57μmol L-1MnCl2·4H2O、0.382μmol L-1ZnSO4·7H2O、0.16μmolL-1CuSO4·5H2O、0.0695μmol L-1MoO3、9μmol L-1Fe-EDTA。
5. The method of claim 1, wherein in step (3), NaHCO is contained in the nutrient solution3The amount of NaCl added was 5 concentration gradients of 0, 2.5, 5.0, 10.0, 20.0g kg-1。
6. The process according to claim 1 or 5, wherein in the step (3), NaHCO is used3And NaCl in a mass ratio of 2: 1.
7. The method according to claim 1, wherein in step (3), 4 water depth gradients are set, which are-5, 0, 10 and 20cm respectively, based on the substrate surface.
8. The method for rapidly recovering the scirpus planiculmis wetland under the saline-alkali stress is characterized by comprising the following steps of:
(1) burying the scirpus planiculmis seedling in the recovery land with the burying depth of 2-3 cm;
(2) detecting the saline-alkali concentration of the soil when the saline-alkali concentration<10g kg-1When the water is needed, the water depth is adjusted to-5-0 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911189116.3A CN110754351A (en) | 2019-11-28 | 2019-11-28 | Water depth optimization and rapid recovery method of scirpus planiculmis wetland under saline-alkali stress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911189116.3A CN110754351A (en) | 2019-11-28 | 2019-11-28 | Water depth optimization and rapid recovery method of scirpus planiculmis wetland under saline-alkali stress |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110754351A true CN110754351A (en) | 2020-02-07 |
Family
ID=69339635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911189116.3A Pending CN110754351A (en) | 2019-11-28 | 2019-11-28 | Water depth optimization and rapid recovery method of scirpus planiculmis wetland under saline-alkali stress |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110754351A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102845156A (en) * | 2012-09-12 | 2013-01-02 | 中国科学院东北地理与农业生态研究所 | Comprehensive restoration method for salt-alkali degraded marsh wetland in plain area |
| CN105961372A (en) * | 2016-05-10 | 2016-09-28 | 中国科学院东北地理与农业生态研究所 | Method effectively controlling restored wetland annual weed |
-
2019
- 2019-11-28 CN CN201911189116.3A patent/CN110754351A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102845156A (en) * | 2012-09-12 | 2013-01-02 | 中国科学院东北地理与农业生态研究所 | Comprehensive restoration method for salt-alkali degraded marsh wetland in plain area |
| CN105961372A (en) * | 2016-05-10 | 2016-09-28 | 中国科学院东北地理与农业生态研究所 | Method effectively controlling restored wetland annual weed |
Non-Patent Citations (2)
| Title |
|---|
| 刘莹: "盐碱梯度下芦苇和扁秆藨草水分利用效率和功能性研究", 《中国博士学位论文数据库基础科学辑》 * |
| 古勇波: "扁秆藨草和三江藨草功能性状对不同环境因子的响应", 《中国优秀硕士学位论文全文数据库 基础科学辑》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Epstein et al. | Applying forest restoration principles to coral reef rehabilitation | |
| Worm et al. | Do nutrient availability and plant density limit seagrass colonization in the Baltic Sea? | |
| CN102396334A (en) | Diversifolious poplar root pruning tillering asexual propagation method | |
| CN109042125B (en) | Method for rapidly restoring returned-to-wet field land into scripus orientalis wetland | |
| Kaplan et al. | Re-establishment of an extinct population of the endangered aquatic plant Potamogeton coloratus | |
| CN104756696A (en) | Breeding method for culturing salt-tolerant plants | |
| CN100333634C (en) | Method for breeding bulb of east lily in test tube | |
| CN106258408A (en) | A kind of implantation methods recovering Scirpus mariqueter Natural Population | |
| CN111492966B (en) | Seedling growing method for tylophora | |
| CN105723847B (en) | A kind of method that Technique in Western Jilin Province degeneration salt-soda soil reverts to three river scirpus triqueter wetlands | |
| CN103053380A (en) | Method for improving transplanting survival rate and grow effect of large and medium diameter trees | |
| Poschlod et al. | Natural revegetation and restoration of drained and cut-over raised bogs in southern Germany-a comparative analysis of four long-term monitoring studies | |
| CN110754350B (en) | Water depth optimization and rapid recovery method of scripus triqueter wetland under saline-alkali stress | |
| CN110754351A (en) | Water depth optimization and rapid recovery method of scirpus planiculmis wetland under saline-alkali stress | |
| CN101268737A (en) | Plant cover ecological recovery method for mine spoil area of south China | |
| CN107864803B (en) | Recovery method for improving scirpus planiculmis community stability by using microtopography construction | |
| JP5089507B2 (en) | Environmental improvement material, environmental restoration material in coastal area, artificial tidal flat, artificial tidal flat creation method, soil layer improvement material, crop cultivation soil, crop cultivation soil creation method, and crop production method | |
| CN111543304B (en) | Method for repairing seaweed bed | |
| Daudi et al. | Role of the source community for the recovery of seagrass associated meiofauna: a field colonisation experiment with seagrass mimics in Diani Beach, Kenya | |
| CN104770285A (en) | Zostera marina young seedling manual culture method | |
| CN107821132A (en) | A kind of optimal water salt threshold value breeding method of Reed rhizome budding | |
| CN109644785B (en) | Lotus leaf wrapping planting method for submerged plant tape grass seedlings of shallow water areas of Tongjiang lakes | |
| Xia et al. | Effect of continuous cropping generations on each component biomass of poplar seedlings during different growth periods | |
| Limin et al. | History of the development of tropical peatland in central Kalimantan, Indonesia | |
| Blindow et al. | Re-Establishment Techniques and Transplantations of Charophytes to Support Threatened Species. Plants 2021, 10, 1830 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200207 |