Journal of Jilin University(Earth Science Edition) ›› 2021, Vol. 51 ›› Issue (1): 231-239.doi: 10.13278/j.cnki.jjuese.20190170

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Effects of Different Water Depths on Growth States of Typha Orientalis Presl,Water Quality and Sediment Physical and Chemical Properties

Zhou Linfei, Kang Siyu, Zhang Jing   

  1. College of Water Conservancy, Shenyang Agriculture University, Shenyang 110161, China
  • Received:2019-08-27 Published:2021-02-02
  • Supported by:
    Supported by the Water Conservancy Science and Technology Project of Liaoning Province (20170147)

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Abstract: In order to study the ecological response law and characteristics of Typha angustifolia in different water depth environments on 2018-06-30, 2018-07-30, 2018-08-29, and 2018-09-28, the changes of growth indexes, water quality factors,and sediment factors of Typha angustifolia under different flooding depths were discussed through field sampling survey and indoor chemical analysis. The results showed that the growth indexes of Typha orientalis Presl were different at different flooding depths. At the water depth of 50 cm, the growth state of Typha orientalis Presl was the best. The water samples of Shifosi reservoir were weakly alkaline over 4 sampling days, and sediment types were acidic neutral sediment. With the increase of the water depth, the mass concentration of dissolved oxygen (DO), nitrate nitrogen (NO3-),and nitrite nitrogen (NO2-) in the water samples gradually decreased, and the mass concentration of total nitrogen (TN) and ammonia nitrogen (NH4+) increased. With the increase of water depth, the overall quality score of ammonia nitrogen (NH4+) and organic carbon (SOC) increased, the quality score of total nitrogen (TN), nitrate nitrogen (NO3-) and nitrite nitrogen (NO2-) decreased gradually, the overall conductivity decreased gradually, and the quality score of the total phosphorus (TP) and available phosphorus (AP) fluctuated substantially. The content of nitrogen in sediment and water had a great influence on the growth of Typha orientalis Presl.

Key words: Typha orientalis Presl, growth state, water depth, water environmental factors, sediment environment factors, Shifosi constructed wetland in Shenyang, Liaoning

CLC Number: 

  • X524
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