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Light is the most direct factor that affects the photosynthesis of plants and is closely related to the synthesis and accumulation of plant dry matter. The biomass of Sedum sinensis has a tendency to decrease with the weakening of light intensity. With the weakening of light intensity, the number of branches and leaves of the accompanying S. sinensis decreases, and when the shade of light reaches more than 70%, the synthesis of organic substances will be linear. However, the decline in light intensity did not reduce the chlorophyll associated with the Sedum, so the reason for the decrease in the light intensity and the decrease in the synthesis of organic matter remains to be analyzed. At the same time, as the light intensity decreases, the utilization rate of water and transpiration rate decrease. Therefore, light intensity should be properly controlled during its growth. Light quantum loggers can be used to measure and perform real-time recording and then control. .
Through the use of light quantum recorder to measure the light intensity and regulate the different light intensities for viewing, the light intensity and the absorption of heavy metals associated with the Jingtian absorption found that the impact of light intensity on the two is relatively small, but the light intensity It will affect the use of organic matter and water in the mineral associated with Sedum, so the shade of light is less than 70%, so that it can increase both the synthesis of organic matter and the absorption of heavy metal pollution.
The best environment for plants to absorb heavy metals in soil Each plant has a growth environment that is most suitable for it. The factors for growth environment are nothing other than temperature and humidity, light intensity, etc. The measurement of these two factors can use the temperature and humidity monitor. As well as a light quantum ray recorder for measurement, Sedum is a new species of sedum plant that grows in the lead-zinc ore region of Zhejiang Province. It has the characteristics of ultra-enriched zinc and cadmium, and is a perennial herb. Asexual reproduction is Lord, for those areas that are heavily polluted can use him to repair heavy metal-contaminated soil, how can it maximize its effectiveness?