Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (5): 75-80.doi: 10.11924/j.issn.1000-6850.2014-2312

Special Issue: 资源与环境 水产渔业 农业生态

Previous Articles     Next Articles

Research on Fishery Ecological Environment Condition of Southern Shandong Subsided Water Area

Duan Dengxuan1, Xu Guojing1, Li Ming2, Du Xinghua1, Zhang Hongbo3,   

  1. Liu Fei1, Zhang Minglei1, Cheng Zhenqing3(1Freshwater Fisheries Research Institute of Shandong Province, Saline-alkali fishery Engineering Technology Research Center of Shandong Province, Ji’nan 250013; 2Life college of Shanghai Ocean University, Shanghai 201306;3Zoucheng Bureau of Aquatic Products, Ji’ning Shandong 273500)
  • Received:2014-08-25 Revised:2015-01-15 Accepted:2014-11-18 Online:2015-03-20 Published:2015-03-20

Abstract: Through analyzing the water quality of different subsidence waters (large water, pond and aquiculture pond), the total nitrogen (TN), ammonia nitrogen (NH4 -N), nitrate nitrogen (NO3--N), and nitrate (NO2--N), total phosphorus (TP), pH value, dissolved oxygen (DO), chemical oxygen consumption (COD), transparency (SD), chlorophyll a (Chl-a) and other physical and chemical water quality and nutrition indicators were studied, and the eutrophication level was evaluated using comprehensive nutrition state index (TLI). Results showed that the subsidence waters was suffered different level contamination, the indicators was basically bellow class Ⅲwater standards, nutrient has the characteristics of changes with the seasons; the eutrophication level of waters was all above moderate eutrophication.