3 results about "Solidago canadensis" patented technology

The present application relates to the technical field of biological safety and ecological protection, and discloses a method for tracing the spread of alien invasive plant Solidago canadensis with nursery stock, which comprises the following steps: collecting and recording the geographic coordinates, root base soil color, plant species in the root base soil range, and specification attribute data of the nursery stock in the planting area of the nursery stock suspected to carry Solidago canadensis and the spread points caused by the transportation of the nursery stock; identifying the color of the root base soil by using the Munsell color system and three attributes of color; and adopting a three-step analysis strategy to accurately identify the source of Solidago canadensis carried by the nursery stock, evaluating the spread risk of Solidago canadensis according to the tracing result, and putting forward targeted prevention and control suggestions for source control and early monitoring and early warning. The tracing analysis method can identify the region-specificity of the four types of data, i.e., root base soil, associated plant species, diameter, and branch height, thereby ensuring the accuracy of the tracing result.

The invention discloses a near-nano carbon-based material for function recovery and carbon fixation capability improvement of alien plant invasion damaged soil and a preparation method of the near-nano carbon-based material, and belongs to the technical field of soil remediation and carbon fixation and sink increase. The near-nano carbon-based material is prepared by the following steps: by taking an external invasive plant Canadian yellow flower stalk as a raw material, crushing, screening, mixing with water, carrying out hydrothermal reaction to obtain a hydrothermal carbonization product, and carrying out ball milling and screening treatment to obtain the near-nano carbon-based material. The obtained near-nano carbon-based material has a high-aromaticity carbon skeleton, a rich mesoporous-macroporous structure and a relatively high amorphous silicon content, can efficiently adsorb and passivate residual allelochemicals of solidago canadensis, reconstruct an aggregate structure, promote microbial diversity and key enzyme activity recovery, strengthen organic carbon-mineral bonding and improve the stability of the material. Therefore, invasion-induced multifunctional soil degradation is accurately reversed, and in-situ remediation of the soil structure and function and improvement of the carbon immobilization capacity are achieved. Experimental results show that the carbon-based material provided by the invention can increase the multifunctional index of invasion-induced damaged soil by about 560% and increase the carbon sequestration index by about 48.1%.

This invention discloses a method for controlling Canadian goldenrod, belonging to the field of biological control technology. The method includes: physical tilling combined with chemical spraying during the seedling stage; tilling followed by application of biological herbicides during the vegetative growth stage; spraying flower bud inhibitors to suppress seed formation during the flowering stage; and physical removal during the seed maturation stage. This invention employs a phased, multi-pronged, synergistic comprehensive control strategy, targeting the biological characteristics of Canadian goldenrod at different growth stages, and combining chemical, biological, and physical methods to achieve highly efficient, long-lasting, and environmentally friendly control effects. This significantly reduces problems such as herbicide resistance, high recurrence rates, and environmental pollution caused by single-method control.