[1]ZHOU Linfei,FAN Haichuan,XU Ye.Effects of Sediments with Different Nutrient Characteristics on the Growth of Aquatic Plants in Shifosi Constructed Wetland[J].Research of Soil and Water Conservation,2019,26(06):377-381.
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Effects of Sediments with Different Nutrient Characteristics on the Growth of Aquatic Plants in Shifosi Constructed Wetland
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
26
Number of periods:
2019 06
Page number:
377-381
Column:
Public date:
2019-10-17
- Title:
- Effects of Sediments with Different Nutrient Characteristics on the Growth of Aquatic Plants in Shifosi Constructed Wetland
- CLC:
- Q948.8;X53
- DOI:
- -
- Abstract:
- The effects of the nutrient characteristics of the sediments on the biomass of aquatic plants in different growth periods were studied by collecting sediments and biological plants in the different wetland areas with the growth of non-reed and the bulrush in the constructed wetland of Shifosi Reservoir, and the effects of sediments with different nutrient characteristics on aquatic plant biomass were compared. The results showed that the nutrient characteristics of the sediments had a certain correlation with the biomass of aquatic plants in each period, in the early growth stage, the biomass of the reeds and the grasses was negatively correlated with the nitrogen and phosphorus in the sediments, the correlation of biomass with TP content reach the significant level (p<0.05), indicating that the higher nutrient content in the sludge inhibited the growth of aquatic plants; with the further growth of aquatic plants, the inhibition effect gradually became weaker, and gradually transformed into the promoting effect, the correlation between nutrient content and aquatic plant biomass in the sediment changed from negative correlation to positive correlation; after the aquatic plants entered maturity, the biomass of reed and raupo reached the maximum, and the contents of TN and TP in the sediments were significantly positively correlated with the biomass of aquatic plants; this relationship gradually disappeared with the process of the aquatic plant exsciccation. The nutrient level of sediment affects the growth of aquatic plants, mainly affects the accumulation of biomass. The growth of different aquatic plants is affected differently, and the biomass of the grass is highly correlated with the nutrient content in the sediment.
- References:
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1900-01-01