Abstract:
Some hydrophilic fibrovascular plants living under the ice of Baiyinhua reservoir such as Potamogeton crispus, Myriophyllum spicatum,Ceratophyllum demersum,Batrachium bungei were observed.The biomass of these plants varied from 10 to 3760 g / m2,and according to the area occupied by each of the plants their order was as follows:Potamogeton crispus>Myriophyllum spicatum>Ceratophyllum demersum>Batrachium bungei.The result of test with black-white bottle showed that Potamogeton crispus gave the greatest amount of oxygen (1 g of hydrophilic plant per unit time), followed by Batrachium hungei,Myriophyllum spicatum,Ceratophyllum demersum accordingly.The supplementary point of photosynthesis is 100 1x,175 1x,160 lx and 150 lx,respectively.
Key words:
Water body under ice,
Hydrophilic fibrovascular plants,
Supplementary point of photosynthesis
CLC Number:
Liu Guocai. Observation on Hydrophilic Fibrovascular Plants Living Under Ice of Baiyinhua Reservoir[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1994, 9(1): 121-125. doi: 10.3321/j.issn:1000-7091.1994.01.024.