Methods for returning Plantago asiatica to the wild

Abstract

The present application provides a method for the wild return of Plantago asiatica, which relates to the technical field of the wild return of rare and endangered plants. The method comprises: preparing the target return site of Plantago asiatica with a reverse slope horizontal step, the elevation of the target return site to the horizontal ground is less than or equal to 5 meters, and the soil thickness of the target return site is greater than or equal to 10 centimeters; planting Plantago asiatica in the reverse slope horizontal step in March, and weeding every 15 days after planting; sowing Xanthium sibiricum seeds between the rows of Plantago asiatica in April, and thinning out the grown Xanthium sibiricum in June; after clearing all Xanthium sibiricum in July, covering the reverse slope horizontal step with the Plantago asiatica exposed, and removing the film from the reverse slope horizontal step in September. The method of the present application is used to improve the survival rate of Plantago asiatica in the wild return by pretreating the target return site of Plantago asiatica and planting shade plants between the rows of Plantago asiatica.

Description

Technical Field

[0001] The present application relates to the technical field of wild reintroduction of rare and endangered plants, and in particular to a method for reintroducing Plantago asiatica into the wild. Background Art

[0002] Plantago fengdouensis is a rare and endangered plant species that is endangered due to its limited wild distribution and small number of individuals. Therefore, effectively reintroducing Plantago fengdouensis into the wild is crucial for its conservation.

[0003] Existing research focuses on the classification, ex situ conservation, and biological characterization of Plantago fengduensis. In terms of breeding technology, rapid tissue culture propagation has been developed through seed screening, pretreatment, sterilization, and germination induction, thereby increasing its reproduction rate.

[0004] However, there has been no detailed research and report on the field return method of Plantago asiatica in the prior art. Summary of the Invention

[0005] The present application provides a method for the wild reintroduction of Plantago asiatica, which is used to improve the survival rate of the wild reintroduction of Plantago asiatica by pretreating the target reintroduction site of Plantago asiatica and planting shade plants between the rows of Plantago asiatica.

[0006] In a first aspect, the present application provides a method for field regression of Plantago asiatica, the method comprising:

[0007] The target regression site in Cheqian, Fengdu, is subjected to reverse-slope horizontal terrace land preparation, wherein the elevation of the target regression site to the horizontal ground is less than or equal to 5 meters, and the soil thickness of the target regression site is greater than or equal to 10 centimeters, the reverse slope inclination angle of the reverse-slope horizontal terrace land preparation is between 5 degrees and 10 degrees, the step distance of the reverse-slope horizontal terrace land preparation is 1 meter, and the step width of the reverse-slope horizontal terrace land preparation is 40 centimeters to 50 centimeters;

[0008] Plant the Plantain truncatum in the horizontal steps of the reverse slope in March and weed every 15 days after planting.

[0009] Sow cocklebur seeds between the rows of Fengdu Plantain in April, and thin out the grown cockleburs in June;

[0010] After all the Xanthium sibiricum were removed in July, the horizontal steps on the reverse slope were covered with film while the Plantago asiatica was exposed, and the film was removed in September.

[0011] In one possible design, the cocklebur seeds are sown at a spacing of 30 cm.

[0012] In one possible design, the thinning intensity of cocklebur is 0.5.

[0013] In one possible design, the first 30 cm of the Fengdu Plantago plant is not covered with film.

[0014] In one possible design, the distance between two adjacent Plantago asiatica plants is 10 cm to 20 cm.

[0015] In one possible design, it also includes:

[0016] Water the plants once on the day of planting to help them establish roots, and once on the 1st, 2nd and 7th day after planting.

[0017] In one possible design, before the Fengdu Plantain is planted in the horizontal terraces on the reverse slope in March, it also includes:

[0018] The dead branches and leaves of native plants in the target riverbank area where Fengdu Plantago grows in the wild are fully burned to obtain wood ash, which is then spread on the reverse slope horizontal steps of the target regression site to be evenly mixed with the soil.

[0019] In one possible design, before the Fengdu Plantain is planted in the horizontal terraces on the reverse slope in March, it also includes:

[0020] The seedlings of Plantago asiatica were placed in a shade environment for drought hardening. The drought hardening included watering once every 10 days, with each seedling receiving 500 ml of water each time.

[0021] In one possible design, drought training is performed in January and the duration of drought training is 60 days.

[0022] In a possible design, before placing the seedlings of Plantago asiatica in a shade house environment for drought hardening, the following steps are also included:

[0023] The seedlings of Plantago asiatica propagated from two-year-old seeds were selected, and the root-to-shoot ratio of the seedlings was greater than or equal to 3.

[0024] The present application provides a field regression method for Plantago asiatica, which includes: preparing the target regression site of Plantago asiatica with reverse-slope horizontal steps, wherein the elevation of the target regression site to the horizontal ground is less than or equal to 5 meters, and the soil thickness of the target regression site is greater than or equal to 10 centimeters, the reverse slope inclination of the reverse slope horizontal steps is between 5 degrees and 10 degrees, the step distance between the reverse slope horizontal steps is 1 meter, and the step width of the reverse slope horizontal steps is 40 centimeters to 50 centimeters; in March, Plantago asiatica is planted in the reverse slope horizontal steps, and weeding is performed every 15 days after planting; in April, Xanthium sibiricum seeds are sown between the rows of Plantago asiatica, and the grown Xanthium sibiricum is thinned out in June; after removing all Xanthium sibiricum in July, the reverse slope horizontal steps are covered with a film while the Plantago asiatica is exposed, and the film is removed from the reverse slope horizontal steps in September. The following technical effects are achieved: by selecting a suitable return site for Plantain fengduensis, the elevation of the return site relative to the horizontal ground is made not more than 5 meters, thereby ensuring that the terrain of the return site is suitable for the growth of Plantain fengduensis and is conducive to drainage, thus avoiding the problem of root rot of Plantain fengduensis caused by water accumulation; by ensuring that the soil layer thickness of the return site is not less than 10 centimeters, sufficient soil depth is ensured, supporting the root development of Plantain fengduensis, thereby ensuring that the soil can provide sufficient nutrients and root growth space for Plantain fengduensis; by performing reverse slope horizontal terrace land preparation on the target return site, the drainage of the soil for planting Plantain fengduensis is improved, soil and water erosion can be prevented, and the growth of Plantain fengduensis is conducive to the growth of Plantain fengduensis. By regularly weeding and removing Xanthium sibiricum, the competition of weeds on Plantain chinensis is reduced, ensuring that it has sufficient resources for growth; by covering the horizontal steps on the reverse slope, the evaporation of soil moisture is reduced, the soil moisture is maintained, the soil temperature is increased, and the growth of weeds is inhibited, further providing a suitable soil environment for the growth of Plantain chinensis; by rationally using film covering and film removal, the good air permeability of the soil is maintained, promoting the healthy development of the root system of Plantain chinensis; through the design of the horizontal steps on the reverse slope and the use of film covering, it is more convenient for technicians to manage and monitor Plantain chinensis, which helps to promptly discover and solve various problems arising during the growth of Plantain chinensis. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0027] Figure 1A schematic diagram of a method for field regression of Plantago asiatica provided in an embodiment of the present application Figure 1 ;

[0028] Figure 2 A schematic diagram of a method for field regression of Plantago asiatica provided in an embodiment of the present application Figure 2 ;

[0029] Figure 3 A schematic diagram of a Fengdu Plantago plant that grows normally in April provided in an embodiment of the present application;

[0030] Figure 4 A schematic diagram of Fengdu Plantago in April without spreading wood ash in the soil in advance, provided in an embodiment of the present application;

[0031] Figure 5 A schematic diagram of a Fengdu Plantago plant that grows normally in July, provided in an embodiment of the present application;

[0032] Figure 6 This is a schematic diagram of Plantago asiatica in Fengdu in July after all Xanthium sibiricum has been cleared in advance, as provided in an embodiment of the present application. DETAILED DESCRIPTION

[0033] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0034] In the embodiments of the present application, words such as "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit differences. It should be noted that in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described in this application as "exemplary" or "for example" should not be interpreted as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete way. In the embodiments of the present application, "at least one" refers to one or more, and "more than one" refers to two or more.

[0035] It should be noted that the phrase "at the time of..." in the embodiments of the present application can refer to the instantaneous occurrence of a certain situation or a period of time after the occurrence of a certain situation, and the embodiments of the present application do not specifically limit this. Furthermore, the field return method for Plantago asiatica provided in the embodiments of the present application is merely an example, and the field return method for Plantago asiatica may also include more or less content.

[0036] To facilitate a clear description of the technical solutions of the embodiments of the present application, some of the terms and technologies involved in the embodiments of the present application are briefly introduced below:

[0037] Rewilding: A conservation measure involves reintroducing species that once inhabited a region but are now extinct or extremely rare into their original or similar natural habitats through artificial propagation or other means. This practice aims to restore wild populations, protect biodiversity, and repair damaged ecosystems. Rewilding is crucial for many endangered species, as it helps them avoid extinction and contributes to the health and stability of ecosystems. Specifically, based on ex situ conservation, plants are introduced into their original natural or semi-natural habitats through artificial propagation to establish new populations that can be naturally maintained and regenerated.

[0038] Root-to-crown ratio: This refers to the ratio of the fresh weight or dry weight of a plant's underground part (roots) to its aboveground part (crown, including stems, leaves, etc.). This ratio is one of the key indicators for assessing a plant's growth status, environmental adaptability, and resource allocation strategy. Changes in the root-to-crown ratio can reflect a plant's response to varying environmental conditions, such as water and nutrient availability. A large root-to-crown ratio indicates a well-developed root system, capable of storing more water and nutrients for the plant, and generally resulting in greater stress resistance.

[0039] Tissue culture and rapid propagation, also known as tissue culture and rapid propagation, is a method for rapidly propagating plants using plant tissue culture techniques. This technique has important applications in plant protection, breeding, and commercial production, and is particularly suitable for plant species with slow propagation rates, low seed germination rates, or endangered species. Tissue culture and rapid propagation can produce large numbers of plants with consistent genotypes in a short period of time, making it suitable for large-scale production and the protection of endangered plants.

[0040] Plantago fengdouensis is a unique, rare, and endangered perennial herbaceous plant of the Plantaginaceae family. It is a protected species that grows in specific regions and environments. As an amphibious plant, it is resistant to flooding and drought and possesses unique ecological value. Through a long period of natural succession, it has developed a natural habit of dormancy in summer to cope with river flooding and growth and reproduction during the spring dry season. This unique growth habit allows its aboveground parts to wither or rot when river water rises, while its underground roots remain active and quickly resume growth after the water recedes, making it an important model for studying plant adaptation to extreme environments. However, due to its limited wild distribution, population decline, and sparse numbers, as well as ecological damage and the impact of human activities, Plantago fengdouensis is listed as a rare and endangered plant. Its current survival is extremely critical, and it faces a serious threat of extinction.

[0041] Fengdu Plantago was once declared extinct in the wild, but subsequent research by researchers has revealed only a small number of extant plants. Its seeds suffer from low seed set, variable quality, low germination and seedling survival rates, and poor adaptability to the environment. This has resulted in low wild populations and a difficult natural regeneration process. Its native habitat, now inundated by rivers, has been destroyed, leaving Fengdu Plantago facing a fragmented habitat and a constant risk of extinction. Therefore, effective reintroduction and conservation of Fengdu Plantago is crucial.

[0042] In the current technological landscape, research on Plantago fengduensis primarily focuses on taxonomic identification (clarifying its taxonomic status and morphological characteristics), the development of ex situ conservation measures (transplanting it into controlled environments through the establishment of botanical gardens or protected areas), and in-depth biological observations (studying its growth and development patterns, ecological habits, and other factors to provide a theoretical basis for reintroduction into the wild). Regarding breeding techniques, while some research has successfully addressed the challenges of rapid tissue culture propagation of Plantago fengduensis through meticulous seed screening, pretreatment, sterilization, and germination induction, significantly improving its reproduction rate, despite progress in breeding techniques, systematic research and practice on reintroduction into the wild remains lacking. Currently, no research has been conducted on reintroducing Plantago fengduensis into riparian environments, resulting in a lack of research on how to successfully reintroduce it into its natural habitat. In this context, the implementation of the wild reintroduction of Plantago asiatica can effectively expand its wild population and avoid its extinction in the wild. How to solve the above difficulties and improve the survival rate of the wild reintroduction of Plantago asiatica is a technical problem that needs to be solved urgently.

[0043] Based on this, the embodiment of the present application proposes a method for the wild return of Plantago asiatica, which can be used in the technical field of the wild return of rare and endangered plants, and aims to solve the above technical problems of the prior art. Through a series of scientific and effective measures, the survival rate of Plantago asiatica in the wild is significantly improved. Specifically, the method includes two core links: one is to carry out comprehensive and detailed pretreatment of the target return site to ensure that the return site has the basic conditions suitable for the growth of Plantago asiatica; the second is to reasonably plant shade plants between the planting rows of Plantago asiatica to provide the necessary shading effect and reduce the potential damage of strong light to Plantago asiatica seedlings, thereby further ensuring its survival rate. By pretreating the target return site of Plantago asiatica and planting shade plants between the rows, its survival rate and adaptability in the wild can be significantly improved. The method in the embodiment of the present application provides a scientific basis and technical support for the protection of Plantago asiatica, and can also provide a reference for the wild return of other endangered plants.

[0044] The following specific embodiments describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0045] Figure 1 A schematic diagram of a method for field regression of Plantago asiatica provided in an embodiment of the present application Figure 1 .like Figure 1 As shown, the method includes:

[0046] S101. Perform reverse slope horizontal terrace land preparation on the target regression site in Cheqian, Fengdu.

[0047] In the embodiment of the present application, the elevation of the selected target regression site and the horizontal ground is less than or equal to 5 meters, and the soil thickness of the target regression site is greater than or equal to 10 centimeters, the reverse slope inclination angle of the reverse slope horizontal terrace is between 5 degrees and 10 degrees, the step distance of the reverse slope horizontal terrace is 1 meter, and the step width of the reverse slope horizontal terrace is 40 centimeters to 50 centimeters;

[0048] Specifically, in order to improve the survival rate and growth effect of Plantago asiatica in the wild, a suitable growth environment can be provided for it to ensure its healthy growth. First of all, a suitable target return site can be selected for Plantago asiatica. The elevation of the target return site should not exceed 5 meters relative to the horizontal ground to ensure that the terrain is suitable for the growth of Plantago asiatica. Moreover, such a height difference is conducive to drainage and avoids root rot problems caused by water accumulation. At the same time, the soil layer thickness of the target return site can be selected to be at least 10 cm to ensure sufficient soil depth to support the root development of Plantago asiatica, thereby ensuring that the soil can provide sufficient nutrients and root growth space for Plantago asiatica.

[0049] In the design of reverse-slope horizontal terraces, the reverse slope angle can be controlled between 5 and 10 degrees. This angle effectively prevents soil erosion while creating a sloping yet stable growth surface for Plantain fengduensis. This is because such a slope allows for effective drainage while maintaining soil moisture, preventing soil erosion and improving soil drainage, making it suitable for the growth of Plantain fengduensis.

[0050] In addition, the distance between steps is set at 1 meter, which not only ensures sufficient space for ventilation and light between each step, but also facilitates subsequent management and maintenance by technicians, facilitating daily management and monitoring of the Fengdu Plantain. The step width is set at 40 to 50 centimeters, which not only allows sufficient growth space for the Fengdu Plantain at each level, but also ensures the efficient use of land resources.

[0051] S102. Plant Plantain chinensis on the reverse slope in March and weed every 15 days after planting.

[0052] Specifically, March sees a gradual rise in temperatures, creating a suitable climate conducive to initial plant growth and underground rooting. Therefore, during this favorable month, Plantain fengduensis can be planted on the aforementioned horizontal steps on the reverse slope. To ensure healthy growth and the establishment of its root system, weeding should be performed every 15 days after planting to reduce weed competition and eliminate any impacts on Plantain fengduensis's growth, ensuring it receives sufficient water, nutrients, and sunlight.

[0053] Furthermore, the spacing between two adjacent Plantain truncatum plants is 10 to 20 centimeters. That is, in order to ensure that there is sufficient spacing between each Plantain truncatum plant and avoid overcrowding, the Plantain truncatum seedlings can be evenly planted on the horizontal steps of the reverse slope, and ensure that the distance between two adjacent Plantain truncatum plants is 10 to 20 centimeters.

[0054] S103. Sow Xanthium sibiricum seeds between the rows of Plantain trees in April, and thin out the grown Xanthium sibiricum in June.

[0055] Specifically, in April, to leverage the interactions between various ecological plants, Xanthium sibiricum seeds can be sown between the rows of Plantain truncatum. As a short-lived companion plant, Xanthium sibiricum can inhibit weed growth to a certain extent, provide shade for Plantain truncatum, and reduce soil evaporation. It can also attract some natural predators, helping to control pests and thus providing a better growing environment for Plantain truncatum.

[0056] In one possible embodiment, the Xanthium sibiricum seeds are sown at a spacing of 30 cm. As companion plants, the relationship between Xanthium sibiricum and Plantago asiatica needs to be maintained in a healthy ecological balance. An appropriate distance can prevent Xanthium sibiricum from excessively encroaching on the space and resources of Plantago asiatica, ensuring a harmonious coexistence between the two.

[0057] As an annual herb, Xanthium sibiricum grows quickly and has high requirements for light and nutrition. Too dense a sowing distance will lead to excessive competition for light, water and nutrients between Xanthium sibiricum plants and Plantago asiatica, thus affecting the growth of Plantago asiatica. Choosing a sowing distance of 30 cm can ensure that each Xanthium sibiricum plant has enough space to absorb water and nutrients from the soil, while also having sufficient light to avoid excessive competition between plants for resources, thereby promoting their healthy growth. A sowing distance of 30 cm can reduce competition between plants to a certain extent, which is beneficial for Xanthium sibiricum to provide shade for Plantago asiatica, while not having an adverse effect on the growth of Plantago asiatica.

[0058] The 30 cm spacing is also conducive to air circulation and light conditions between plants, reducing the density between plants, thereby reducing the breeding and spread of pests and diseases, reducing the occurrence of pests and diseases, effectively reducing the cost and difficulty of pest and disease prevention and control, and promoting the healthy growth of Fengdu Plantain.

[0059] Although the initial growth of Xanthium sibiricum can provide certain shading effect and microclimate regulating effect for Plantago asiatica. However, when Xanthium sibiricum grows to a certain extent, in order to avoid it from competing with Plantago asiatica for nutrients and illumination, it is necessary to thin out the Xanthium sibiricum that grows in June. In a possible embodiment, the thinning intensity of Xanthium sibiricum is 0.5. By making the thinning intensity of the shade plant Xanthium sibiricum be to remove 1 / 2, thereby only retaining an appropriate amount of Xanthium sibiricum plants, it is possible to maintain appropriate shading effect to Plantago asiatica, and avoid Xanthium sibiricum from excessively blocking the illumination of Plantago asiatica. Simultaneously, by controlling the density of Xanthium sibiricum, it is possible to prevent the excessive competition between Xanthium sibiricum and Plantago asiatica.

[0060] In July, all Xanthium sibiricum plants can be completely removed to ensure that there are no competing plants around the Plantain truncatum, thus ensuring that the growth of the Plantain truncatum is not affected.

[0061] S104. After all the Xanthium sibiricum are removed in July, the reverse slope horizontal steps are covered with film while the Plantago asiatica is exposed, and the film is removed from the reverse slope horizontal steps in September.

[0062] By July, after all the cockleburs have been removed, the plantains will be fully exposed to sunlight and air. At this point, to further increase soil temperature, maintain soil moisture, prevent weed growth, and promote root growth and expansion, the horizontal steps of the reverse slope can be mulched while ensuring the plantains are exposed. This maintains soil moisture, regulates soil temperature, and reduces weed growth, creating a suitable growing environment for the plantains by improving the soil environment.

[0063] Furthermore, in one possible embodiment, the plant is not covered with film within 30 cm. Specifically, when covering with film, care should be taken to expose the plant and ensure that the area around the plant is not covered with film within 30 cm, so as to maintain the air permeability and humidity of the area around the plant, promote better respiration and nutrient absorption of the plant's roots, and thus promote the healthy development of the plant's roots.

[0064] Finally, in September, as the weather gradually cools, the film will be removed from the horizontal steps of the reverse slope to prevent the excessive soil temperature and humidity caused by the film covering, which would affect the normal growth of the Fengdu Plantain. This will also allow the Fengdu Plantain to gradually adapt to the changes in the natural environment and promote its healthy growth. The film is removed in autumn because the Fengdu Plantain has established a more developed root system by then, allowing it to better adapt to the natural environment. It also helps to aerate the soil and promote its growth. This completes the entire method for returning the Fengdu Plantain to the wild.

[0065] The above steps not only provide a suitable growth environment for Plantain fengduensis but also fully utilize the interactions between species to ensure its healthy growth. Furthermore, through rational environmental management and competition control, taking into account soil, water, light, and competition factors, the survival rate and growth quality of Plantain fengduensis are improved, providing scientific basis and technical support for the conservation and restoration of this rare and endangered plant.

[0066] The present embodiment provides a method for field regression of Plantago asiatica, which includes: preparing the target regression site of Plantago asiatica with reverse-slope horizontal terraces, wherein the elevation of the target regression site to the horizontal ground is less than or equal to 5 meters, and the soil thickness of the target regression site is greater than or equal to 10 centimeters, the reverse slope inclination of the reverse slope horizontal terraces is between 5 degrees and 10 degrees, the step spacing of the reverse slope horizontal terraces is 1 meter, and the step width of the reverse slope horizontal terraces is 40 centimeters to 50 centimeters; in March, Plantago asiatica is planted in the reverse slope horizontal terraces, and weeding is performed every 15 days after planting; in April, Xanthium sibiricum seeds are sown between the rows of Plantago asiatica, and the grown Xanthium sibiricum is thinned out in June; after removing all Xanthium sibiricum in July, the reverse slope horizontal terraces are covered with a film while the Plantago asiatica is exposed, and the film is removed from the reverse slope horizontal terraces in September.

[0067] The following technical effects are achieved: by selecting a suitable return site for Plantain fengduensis, the elevation of the return site relative to the horizontal ground is made not more than 5 meters, thereby ensuring that the terrain of the return site is suitable for the growth of Plantain fengduensis and is conducive to drainage, thus avoiding the problem of root rot of Plantain fengduensis caused by water accumulation; by ensuring that the soil layer thickness of the return site is not less than 10 centimeters, sufficient soil depth is ensured, supporting the root development of Plantain fengduensis, thereby ensuring that the soil can provide sufficient nutrients and root growth space for Plantain fengduensis; by performing reverse slope horizontal terrace land preparation on the target return site, the drainage of the soil for planting Plantain fengduensis is improved, soil and water erosion can be prevented, and the growth of Plantain fengduensis is conducive to the growth of Plantain fengduensis. By regularly weeding and removing Xanthium sibiricum, the competition of weeds on Plantain chinensis is reduced, ensuring that it has sufficient resources for growth; by covering the horizontal steps on the reverse slope, the evaporation of soil moisture is reduced, the soil moisture is maintained, the soil temperature is increased, and the growth of weeds is inhibited, further providing a suitable soil environment for the growth of Plantain chinensis; by rationally using film covering and film removal, the good air permeability of the soil is maintained, promoting the healthy development of the root system of Plantain chinensis; through the design of the horizontal steps on the reverse slope and the use of film covering, it is more convenient for technicians to manage and monitor Plantain chinensis, which helps to promptly discover and solve various problems arising during the growth of Plantain chinensis.

[0068] Figure 2 A schematic diagram of a method for field regression of Plantago asiatica provided in an embodiment of the present application Figure 2 In one possible example, Figure 2 As shown, this embodiment Figure 1 Based on the embodiment, the steps of planting Plantain in the reverse slope level step are described in detail. Figure 2 As shown, the method includes:

[0069] S201. Selecting seedlings of Plantago asiatica grown from two-year-old seeds, wherein the root-to-shoot ratio of the seedlings is greater than or equal to 3.

[0070] Specifically, selecting seedlings with a root-to-crown ratio greater than or equal to 3 is to ensure that the selected seedlings have a strong root system. Selecting plants with more developed root systems will help improve their ability to absorb water and nutrients, and can better adapt to environmental changes after transplantation, thereby increasing the survival rate of Fengdu Plantain.

[0071] S202. Place the seedlings of Plantago asiatica in a shaded environment for drought hardening.

[0072] In the embodiment of the present application, drought conditioning includes: watering once every 10 days, with each seedling being watered with 500 ml of water each time.

[0073] Specifically, drought hardening enhances the stress resistance of Plantago asiatica seedlings, particularly their drought tolerance, by restricting their water supply. Drought hardening the seedlings in a shadehouse environment involves watering each seedling with 500 milliliters of water every 10 days. This simulates the drought conditions found in nature to a certain extent, encouraging the seedlings to develop stronger root systems and more efficient water use mechanisms, thereby enhancing their stress resistance.

[0074] In a possible embodiment, drought training is performed in January, and the duration of drought training is 60 days. In other words, this training can be performed in January for a period of 60 days to improve the drought tolerance of the plants.

[0075] After the drought training was over, the surviving Fengdu Plantago seedlings were retained as materials for returning to the wild.

[0076] S203, performing reverse slope horizontal terrace land preparation on the target regression site in Cheqian, Fengdu.

[0077] S203 is similar to S101 and will not be described in detail in this embodiment.

[0078] S204. The dead branches and leaves of the native plants in the target riverbank area where Fengdu Plantago grows in the wild are fully burned to obtain wood ash, and the ash is spread on the reverse slope horizontal steps of the target regression site to mix evenly with the soil.

[0079] Specifically, the dead branches and leaves of native plants are burned to obtain wood ash, which is then mixed with the soil. Wood ash is rich in minerals such as potassium and calcium, which can increase the mineral content and hydrogen ion concentration index (pH value) of the soil, improve the soil structure, increase soil fertility, and provide the necessary nutrients for the growth of Fengdu Plantain.

[0080] S205. Plant Plantain chinensis in horizontal steps on the reverse slope in March, and weed every 15 days after planting.

[0081] S205 is similar to S102 and will not be described in detail in this embodiment.

[0082] S206. Water the plants once on the day of planting to ensure that they take root, and once on the first, second, and seventh days after planting.

[0083] Specifically, water the roots on the day of planting, and then water them again on the 1st, 2nd and 7th day after planting. Watering the roots and subsequent waterings help promote the integration of the roots of Plantain chinensis with the new environment, ensuring that the Plantain chinensis plants get enough water in the early stages, thereby improving the survival rate of Plantain chinensis seedlings.

[0084] S207. Sow Xanthium sibiricum seeds between the rows of Plantain trees in April, and thin out the grown Xanthium sibiricum in June.

[0085] S208. After all the Xanthium sibiricum are removed in July, the reverse slope horizontal steps are covered with film while the Plantago asiatica is exposed, and the film is removed from the reverse slope horizontal steps in September.

[0086] S207-S208 are similar to S103-S104 and will not be described in detail in this embodiment.

[0087] The embodiment of the present application provides a method for the wild reintroduction of Plantago asiatica, which improves the survival rate and seedling quality of Plantago asiatica seedlings by screening out seedlings suitable for wild reintroduction in advance; improves the drought resistance of Plantago asiatica seedlings by drought training, thereby further enhancing the environmental adaptability of Plantago asiatica seedlings; collects dead branches and leaves of native plants in the target riverbank area where Plantago asiatica survives in the wild, burns them thoroughly to obtain wood ash, and spreads them on the reverse slope horizontal steps of the target reintroduction site to mix them evenly with the soil, thereby improving the soil structure, increasing soil fertility, and providing necessary nutrients for the growth of Plantago asiatica; and irrigates the roots with water on the day of planting, followed by watering on the 1st, 2nd and 7th days after planting, thereby promoting the integration of the root system of Plantago asiatica with the new environment, ensuring that the Plantago asiatica plants obtain sufficient water in the early stages, thereby improving the survival rate of the Plantago asiatica seedlings.

[0088] Figure 3 This is a schematic diagram of the normal growth of Fengdu Plantago in April provided in the embodiment of this application. Figure 3 As shown, technicians conducted an investigation on the Fengdu Plantain plants that had returned to the wild in April and found that the plants were in good growth condition and had entered the fruiting period.

[0089] Figure 4 This is a schematic diagram of Fengdu Plantago in April without spreading plant ash in the soil in advance, provided in the embodiment of the present application. Figure 4 As shown, technicians conducted an investigation on the Fengdu Plantain that had returned to the wild in April and found that although the Fengdu Plantain plants were in good growth condition when other conditions were the same but the native plant ash was not spread in the soil in advance, they had not entered the fruiting period. This shows that if the dead branches and leaves of native plants in the target riverbank area where Fengdu Plantain survives in the wild are not collected and the wood ash obtained by burning them is not spread on the reverse slope horizontal steps of the target return site, the fruiting period of Fengdu Plantain will be delayed or even no fruit will be produced.

[0090] Figure 5 This is a schematic diagram of the normal growth of Fengdu Plantago in July provided in the embodiment of this application. Figure 5As shown, technicians conducted an investigation on the Fengdu Plantain plants that had returned to the wild in July and found that the plants were in good growth condition.

[0091] Figure 6 This is a schematic diagram of the Fengdu Plantago plant in July that has been cleared of all Xanthium sibiricums in advance, as provided in the embodiment of the present application. Figure 6 As shown, technicians conducted an investigation of Plantain fengduensis plants that had been reintroduced to the wild in July and found that, despite other conditions remaining the same, the growth of the plants was affected after all Xanthium sibiricum was removed in May. By July, the leaves had disappeared, leaving only the petioles, and the crown width of the plants had become very small. This indicates that without the shade provided by Xanthium sibiricum, the growth of Plantain fengduensis plants would be severely affected.

[0092] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the scope of protection of the present application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solution of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solution to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for field restoration of Plantago asiatica, characterized in that: include: The target regression site in Cheqian, Fengdu is subjected to reverse slope horizontal terrace land preparation, wherein the elevation of the target regression site to the horizontal ground is less than or equal to 5 meters, and the soil thickness of the target regression site is greater than or equal to 10 centimeters, the reverse slope inclination angle of the reverse slope horizontal terrace land preparation is between 5 degrees and 10 degrees, the step distance of the reverse slope horizontal terrace land preparation is 1 meter, and the step width of the reverse slope horizontal terrace land preparation is 40 centimeters to 50 centimeters; Planting Plantago asiatica in the reverse slope level step in March, and weeding every 15 days after planting; Sowing cocklebur seeds between the rows of the Plantain Plantago asiatica in April, and thinning out the grown cockleburs in June; After all the Xanthium sibiricum were removed in July, the reverse slope horizontal steps were covered with film while the Plantago asiatica was exposed, and the film was removed from the reverse slope horizontal steps in September.

2. The method according to claim 1, characterized in that The sowing spacing of the Xanthium sibiricum seeds is 30 cm.

3. The method according to claim 1, characterized in that The thinning intensity of the Xanthium sibiricum is 0.

5.

4. The method according to claim 1, wherein The plantago asiatica is not covered with film within 30 cm.

5. The method according to claim 1, characterized in that The distance between two adjacent plants of Plantago asiatica is 10 cm to 20 cm.

6. The method according to any one of claims 1 to 5, characterized in that Also includes: Water the plants once on the day of planting to help them establish roots, and once on the 1st, 2nd and 7th day after planting.

7. The method according to any one of claims 1 to 5, characterized in that Before the Fengdu Plantain is planted in the reverse slope level step in March, the method further comprises: The dead branches and leaves of the native plants in the target riverbank area where the Fengdu Plantago grows in the wild are fully burned to obtain wood ash, which is then spread on the reverse slope horizontal step of the target regression site to be evenly mixed with the soil.

8. The method according to any one of claims 1 to 5, characterized in that Before the Fengdu Plantain is planted in the reverse slope level step in March, the method further comprises: The plantlets of Plantago asiatica are placed in a shade shed environment for drought hardening, wherein the drought hardening comprises watering the plantlets once every 10 days, with each plant receiving 500 ml of water each time.

9. The method according to claim 8, characterized in that The drought training is performed in January, and the duration of the drought training is 60 days.

10. The method according to claim 8, characterized in that Before placing the Plantago asiatica seedlings in a shade shed environment for drought hardening, the method further comprises: The seedlings of Plantago asiatica propagated from two-year-old seeds are selected, and the root-to-shoot ratio of the seedlings is greater than or equal to 3.

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