渔业现代化2017，Vol.44Issue(6)：13-18,6.DOI:10.3969/j.issn.1007-9580.2017.06.003
底部微孔增氧管布设距离和增氧时间对刺参养殖池塘溶氧的影响
The influence of spacing and aerobic time on the dissolved oxygen levels by micropore tube aerator on the bottom of Apostichopus japonicus ponds
摘要
Abstract
In order to clarify the effects of the dissolved oxygen levels and the influence of spacing and aerobic time on the dissolved oxygen level by micropore tube aerator on the bottom of Apostichopus japonicus ponds,the concentrations of DO,NO-2-N and COD were detected during one oxygen increasingcycle( A 7-day cycle,8h from 11:00 am to 7:00 am for oxygen increasing per day. ) in Sapostichopus japonicus ponds in summer. The results showed:the DO increased continuously during the 8-hour continuous period for oxygen increasing;The rising rate of DO was quiet low in the first 2 hours,increased rapidly during the middle 4 hours(2-6 h),slowly decreased during the last 2 hours ( 6-8 h ) . The oxygen increasing for 8 hours continuously could solve the problem of low dissolution of oxygen in nights. The COD and NO-2-N in the water reduced gradually after the 7 day-cycle of oxygen increasing. The concentration of NO-2-N decreased from 0. 025 mg/L to 0. 013 mg/L,and the concentration of COD decreased from 18. 46 mg/L to 14. 15 mg/L. The concentration of DO in the water decreased along with the distance from the pipe. The concentration of DO remained at a high level at the distance from 1-2 m. The concentration of DO at the distance from 3-4 m decreased slowly ( having no significant difference with the concentration at the distance from 1-2 m:P>0. 05) with the value remaining at 5. 22 mg/L,while it decreased dramatically at the distance far from 5 m ( having a significant difference with the concentration at the distance from 1-2 m:P<0. 05). All the results indicated that by micropore aerators, the concentrations of DO, NO-2-N and COD in the water increased efficiently;the proper time for oxygen increasing were 6-8 h and the suitable pipe spacing is 6-8 m.关键词
刺参/微孔增氧/DO/COD/NO-2-NKey words
Apostichopus japonicus/micropore aerator/DO/COD/NO-2-N分类
农业科技引用本文复制引用
李彬,王印庚,廖梅杰,杜佗,范瑞用..底部微孔增氧管布设距离和增氧时间对刺参养殖池塘溶氧的影响[J].渔业现代化,2017,44(6):13-18,6.基金项目
中央级公益性科研院所基本科研业务费专项(20603022016008) （20603022016008）
山东省农业良种工程重大课题"速生抗病耐高温刺参良种选育" （）
