7 results about "Soil animal" patented technology

This invention discloses a method for calculating the nutrient balance of natural grassland grazing systems, belonging to the field of agricultural ecology and grassland management technology. To address the problems of low accuracy and difficulty in guiding precise management in existing nutrient balance calculations for grazing systems, this invention divides spatial units by coupling vegetation spatial heterogeneity index and livestock utilization intensity index; determines the diet composition and deducts vegetation mechanical damage to calculate net nutrient output; constructs a spatiotemporal dynamic layer of excrement deposition; uses a soil animal promotion coefficient-corrected decomposition model to calculate effective nutrient return; and performs spatial overlay analysis of nutrient output and effective nutrient return to calculate the nutrient balance index of each spatial unit, generating decisions for rest grazing, rotational grazing, or supplemental feeding. This invention enables accurate calculation of the nutrient balance of grazing systems, providing a scientific basis for the sustainable utilization and precise management of natural grasslands.

The application provides a microplastic treatment method in soil, and belongs to the technical field of microplastic treatment. The treatment method is as follows: raw biochar is prepared from agricultural straw, and then is modified by hydroxylation, magnetism and carboxylation; the obtained carboxylated biochar is double-coated by chitosan, acetic acid and sodium alginate; then the obtained double-modified biochar is activated, and a covalently immobilized composite targeting enzyme agent is fixed; the surface of the obtained covalently immobilized enzyme agent is loaded with a bacterial agent suspension by atomization spraying, and is adsorbed after standing; finally, the obtained microplastic treatment agent is applied to soil in the process of plant planting for microplastic treatment. The treatment method does not need to use harmful substances such as chemical oxidants, strong acids and strong bases, has no negative effect on soil animals and microbial communities, realizes source control, in-situ repair and long-term control of microplastic pollution, and provides stable ecological guarantee for sustainable planting of facility cucumbers.

The present application relates to a kind of farmland soil quality index evaluation method based on soil animal trophic structure, comprising the following steps: S1 collect the background information of large soil animals in oasis farmland of different tillage years, construct soil animal database;S2 establish large soil animal morphological identification search table and trophic function classification table;S3 to the large soil animal community of oasis farmland of different tillage years is investigated, the total number of large soil animals, the number of groups and the number of individual of each trophic group are counted, the trophic structure index of soil animal is calculated, and soil quality evaluation standard is established;S4 collects the large soil animal sample of oasis farmland of a tillage year, calculates the soil animal quality index according to the method in step S3, and determines the soil quality grade according to the established soil quality evaluation standard.The present application has the advantages of low sampling and analysis workload, simple calculation, clear ecological significance, suitable for fast evaluation of farmland soil quality.

This utility model relates to the field of soil animal technology, specifically a soil animal trapping device. The device includes a workbench with a trapping mechanism on top and an adjustment mechanism on the outside. The trapping mechanism comprises a separation shell and a lighting frame. An LED light is installed inside the lighting frame. A first collection bottle is snapped onto the outside of the separation shell, and a light-blocking cloth is installed on the outside of the first collection bottle. A separation net is fixedly connected to the inside of the separation shell, and a second collection bottle is threadedly connected to the bottom of the separation net. A degreased cotton board is installed inside the second collection bottle. An odor shell is fixedly connected to one end of both the first and second collection bottles, and a fan is installed at one end of the odor shell. This soil animal trapping device collects soil animals with different habits using the first and second collection bottles respectively, thereby facilitating the separation of immobile soil animals.

The application discloses a kind of microplastic biological effect evaluation methods based on typical soil animal multilevel response index, it is related to environmental toxicology evaluation and ecological technical field, by setting microplastic treatment group and control group, the multilevel response index of soil animal individual, organ, tissue, molecule level is determined, and the integrated biomarker response index method is used to calculate comprehensive effect index, and constructs microplastic effect comprehensive evaluation model.The application can realize the comprehensive evaluation of microplastic biological effect and early warning of low concentration pollution, improves the comprehensiveness and accuracy of ecological risk assessment, provides reliable technical support for soil microplastic pollution control.

The application discloses a culture device and experimental method for monitoring the interaction between soil animals and microorganisms and plant root systems, and belongs to the technical field of plant growth culture equipment, and comprises a culture bottle main body, culture media are arranged in the culture bottle main body, a plurality of exchange openings are arranged at the bottom end of the culture bottle main body, and a cover body is arranged at each exchange opening; the application can realize real-time observation and sampling of the monitored plants, the samples are not easy to be polluted, and problems such as poor experimental condition repeatability are solved, sampling detection of operators in experiments is facilitated, and the application is more convenient to use.