39 results about "Pioneer species" patented technology

The invention discloses a method for constructing a subtropical mountain urban waterfront forest based on native plants in the field of ecological restoration. The method includes the following steps: S1: long-term field observation on the history and current situation of native species in the local waterfront space and consulting of relevant documents ; S2: formulate qualitative criteria for the selection of top pioneer species suitable for urban waterfront space, and include the plants of the top pioneer species; S3: select the top pioneer plants suitable for the subtropical mountain urban ecological environment according to the above criteria; S4: according to the site wetland conditions , the lower part of the arbor layer of the vertical structure of the waterfront forest community is equipped with water-resistant shrub layer plants. Adapt to the original bare land of the urban construction site, the large amount of green shade, the stable waterfront forest structure, enhance the biodiversity of the waterfront wetland, improve the level of ecosystem service functions, solve the endogenous secondary pollution of the previous graphic design and reduce manual management , Provide more summer urban cool source to meet social needs.

The invention discloses a method for reconstructing submerged plant communities of lakeside wetland and controlling water quality purification. The method comprises the steps of monitoring and analyzing the water quality purification capacity and the community change rule of water plants in an ecological restoration area of a lakeside wetland, and determining some kinds of water plants with high-intensity purification and survival ability to serve as pioneer species; determining which kind of season dominant species to which the pioneer species belong respectively, and constructing submerged plant communities of the lakeside wetland through reasonable matching of different season dominant species; quickly cultivating the pioneer species on a large scale in the ecological restoration area of the lakeside wetland to realize purification control of water quality. Compared with the prior art, by adopting the method disclosed by the invention, the amount of the submerged plant communities of the lakeside wetland can be effectively controlled, and the stability of a plant cover in an eutrophic water body is maintained, so that the method is of great significance to ecological restoration of the eutrophic water body; moreover, the method disclosed by the invention is technically reliable, simple and feasible in operation and low in cost.

The invention discloses a sand-fixing vanguard plant sand rice germplasm resource propagation technology, the sand rice seeds are purified, the dead branches, broken leaves, and sand impurities are removed, and plump, insect-free and damage-free sand rice is selected Seeds; soak seeds with 10% sodium hypochlorite for 5‑10min to sterilize, rinse and dry with distilled water; place seeds in dark conditions and soak them with 2g / L GA3 for 24h to break the dormancy of sand rice seeds; sow seeds in strips to seedlings Medium, covered with 1-2cm thick silt soil after sowing; watered to moisturize and cover a layer of sunshade net 1m above the seedling field; germinated after sowing 5-6d, part of the sunshade net was removed at night, watered and moisturized; 10- 15d stop seedling emergence, throw off all sunshade nets at night, water and moisturize. The invention can effectively break the dormancy of the sand rice seeds, has the advantages of simplicity, convenience, quickness and effectiveness, can propagate a large number of seedlings in a short time and can provide materials needed for realizing the edible and forage sand rice germplasm resources.

The invention discloses a method for recovering woody plants on a coal ash storage yard. The method includes the steps that pyrite is used as coal ash storage yard alkali buffering agents to reduce the alkalinity of the coal ash storage yard, and lichen and moss are introduced into the coal ash storage yard to improve the plant growth condition of the coal ash storage yard; when the alkali buffering agents are applied and the lichen and the moss are introduced for one week to three weeks, cuttage or transplant of willows is conducted on the coal ash storage yard; watering and daily maintenance are conducted on the willows regularly. According to the method, the pyrite is adopted to buffer the alkali harmfulness of the coal ash storage yard, the pioneer species are evolved to improve the plant growth condition of the coal ash storage yard, and large woody plants are recovered directly and quickly on the coal ash storage yard. The method is simple, convenient and fast to operate and construct, low in cost, high in efficiency, quick in effect achievement, easy to manage and free of special later management and maintenance. By means of the method, dust raising and rain washing of the coal ash storage yard can be controlled obviously, the stability of the whole storage yard can be improved effectively, large vegetation types can be increased, ecological system succession of the storage yard is promoted, and the stability of the ecological system recovery is maintained effectively.

The invention discloses a method for restoring a river submerged plant. The method is characterized in that the submerged plant is used as a pioneer species, appropriate submerged plant is cultivated in the river, different growth conditions of the submerged plant in the river are controlled, submerged vegetation is reconstructed in the degraded river through appropriate maintenance management technology, and the survival rate of the reconstructed submerged vegetation reaches 60 to 70 percent. The local environment of the river water ecological system is improved by restoring the water plants of the river, the structure and the function of the river ecological system can be restored, the cost is low, simplicity, feasibility, low carbon and environmental friendliness can be realized, the benefit is remarkable, the method is suitable for the restoration engineering of the water vegetation of the polluted river and for the ecological reconstruction engineering of the polluted river water plant diversity and water ecological system.