Seed in-situ catcher for distinguishing media

Abstract

The invention provides a seed in-situ catcher for distinguishing media, which mainly comprises a base (1), a rotary tank (2), a drawing filter screen (3), a rotary barrel (4), a gauze (5), blades (6), a water-solid separator (7), a stopping piece(8), a floating barrel (9), plastic foam rings (10) and stopping rods (11).The seed in-situ catcher is characterized in that the rotary barrel at the lower part can rotate freely, and a catching opening in the rotary barrel always faces towards the water inflow direction due to the impact of water flow to blades; the inner side of the rotary barrel is sleeved with the floating barrel at the upper part; a floating material mounted on the outer side of the barrel body enables the height of the barrel body to be automatically adjusted along with the water level to guarantee that collected seeds always float on water and prevent seeds spread by wind from death due to long-time drowning in water; a funnel-shaped catching opening is formed in the upper end of the floating barrel and used for collecting seeds spread with wind; the drawing filter screen is mounted at the lower end of the catching opening; the reversed funnel-shaped water-solid separator is arranged at the lower end of the filter screen to prevent seeds collected from water and seeds spread by wind from mixing.

Description

technical field [0001] The invention belongs to a new field experiment instrument of disciplines such as ecology, agronomy, and environmental science, and in particular relates to a seed in-situ catcher used for different transmission media such as water flow and air. Background technique [0002] The study of seeds is an important field in both ecology and agricultural science. In ecology, the storage of seeds produced by vegetation in the soil is called the seed bank and has received extensive attention since the 1970s. with research. Because the seed bank, as a reserve of propagules, has a stronger ability to withstand stress than ground vegetation, can escape environmental disturbances through dormancy, and is a potential holder of community propagules. In recent years, for damaged ecosystems, the ecological restoration technology targeting seed banks has developed rapidly, and has been applied to ecosystems such as degraded forest lands and transitional grazing areas. ...

AI Technical Summary

Problems solved by technology

[0004] But most current studies on seed dispersal are limited by sampling instruments, collecting seeds directly in the soil or using simple net bags, bobbins, etc.

In this way, on the one hand, the in-situ property cannot be guaranteed, and the most direct propagation information cannot be effectively obtained. After the seeds fall to the ground, their distribution will be affected by other factors, such as surface runoff, terrestrial animal feeding, human disturbance, etc., resulting in secondary distribution. or loss in quantity; on the other hand, such a method cannot distinguish between different transmission routes, namely, water-borne and wind-borne transmission, which will bring large errors in revealing seed dispersal patterns and existing seed collection methods or capture The sampler can only collect seeds that are carried by the wind, and it is difficult to catch the seeds carried by the water flow

Images