CAJ | 학술논문

于2007年10月至2008年3月,对辽宁省盘锦、营口地区部分海参、贝类、种蟹越冬池塘的水温(T)、溶解氧(DO)、透明度(SD)、冰下照度、pH、总氨氮(TNH~+_4-N)、亚硝酸盐氮(NO~_-2-N)、硝酸盐氮(NO~_-3-N)、有效磷(PO_4-P)和化学耗氧量(COD)等进行了全面系统的调查,并对添加淡水对海水越冬池保温、增温效果进行了对比研究.结果表明:添加淡水对越冬池塘中、下层水有明显的保温增温作用,水温在3 ℃以上,而不添加淡水的池塘越冬期间水温为-1.6～3.7 ℃,最低温度出现在1月底至2月初,平均为-1.2 ℃;冰下照度呈现先降低后而升高的趋势,最低点出现在冬至前后,冬至当天9: 00左右的冰面照度为16.56 klx,全天光照大于1 klx的时间一般为6～7 h以上;透明度呈现先增加而后降低的趋势,最大为(1.24±0.25)m,最小为(0.68±0.13)m;DO一般较高,最大为(22.09±4.25)mg/L,最小为(7.81±5.42)mg/L;pH值则一般为8.5～9.0,最低为8.33±0.34,最高为9.27±0.27;COD含量为(8.18±1.47)mg/L,最低为(5.35±2.21)mg/L,最高为(10.80±1.46)mg/L;TNH~_+4-N含量为(0.358±0.260)mg/L,最低为(0.047±0.048)mg/L,最高为(0.785±0.162)mg/L;NO~_-3-N含量为(0.045±0.059)mg/L,最低为(0.002±0.002)mg/L,最高为(0.215±0.077)mg/L;NO~_-2-N含量为(0.017±0.016)mg/L,最低为(0.001±0.001)mg/L,最高为(0.055±0.051)mg/L; PO_4-P含量为(0.009±0.003)mg/L,最低为(0.003±0.002)mg/L,最高为(0.013±0.012)mg/L.研究表明,添加淡水对池塘DO、pH、COD以及营养盐的垂直分布有显著影响,但对透明度、冰下照度等影响不明显.
우2007년10월지2008년3월,대요녕성반금、영구지구부분해삼、패류、충해월동지당적수온(T)、용해양(DO)、투명도(SD)、빙하조도、pH、총안담(TNH~+_4-N)、아초산염담(NO~_-2-N)、초산염담(NO~_-3-N)、유효린(PO_4-P)화화학모양량(COD)등진행료전면계통적조사,병대첨가담수대해수월동지보온、증온효과진행료대비연구.결과표명:첨가담수대월동지당중、하층수유명현적보온증온작용,수온재3 ℃이상,이불첨가담수적지당월동기간수온위-1.6～3.7 ℃,최저온도출현재1월저지2월초,평균위-1.2 ℃;빙하조도정현선강저후이승고적추세,최저점출현재동지전후,동지당천9: 00좌우적빙면조도위16.56 klx,전천광조대우1 klx적시간일반위6～7 h이상;투명도정현선증가이후강저적추세,최대위(1.24±0.25)m,최소위(0.68±0.13)m;DO일반교고,최대위(22.09±4.25)mg/L,최소위(7.81±5.42)mg/L;pH치칙일반위8.5～9.0,최저위8.33±0.34,최고위9.27±0.27;COD함량위(8.18±1.47)mg/L,최저위(5.35±2.21)mg/L,최고위(10.80±1.46)mg/L;TNH~_+4-N함량위(0.358±0.260)mg/L,최저위(0.047±0.048)mg/L,최고위(0.785±0.162)mg/L;NO~_-3-N함량위(0.045±0.059)mg/L,최저위(0.002±0.002)mg/L,최고위(0.215±0.077)mg/L;NO~_-2-N함량위(0.017±0.016)mg/L,최저위(0.001±0.001)mg/L,최고위(0.055±0.051)mg/L; PO_4-P함량위(0.009±0.003)mg/L,최저위(0.003±0.002)mg/L,최고위(0.013±0.012)mg/L.연구표명,첨가담수대지당DO、pH、COD이급영양염적수직분포유현저영향,단대투명도、빙하조도등영향불명현.
Water temperature (T) ,dissolved oxygen (DO) ,transparency (SD) , light intensity, pH, ammonia-nitrogen(TNH~_+4-N), nitrite nitrogen(NO~_-2-N),nitrate nitrogen(NO~_-3-N), phosphate phosphor(PO_4-P)and chemical oxygen demand (COD) were determined under ices in some seawater ponds in Panjin and Yingkou, Liaoning province from Oct.2007 to Mar.2008. The water temperature was found to vary from -1.6 ℃ to 3.7 ℃, averaging -1.2 ℃, the minimum at late January or early February. The light intensity decreased first, and then increased. About 16.56 klx was observed on the Winter Solstice(09:00 a.m.),and the daily light density of over 1 klx was maintained over 6 or 7 hours during a wintering period. The transparency, however, increased first, and then decreased, the maximum (1.24±0.25)m and the minimum (0.68±0.13)m. Generally, the high dissolved oxygen levels were occurred, the maximum (22.09±4.25)mg/L, the minimum (7.81±5.42)mg/L. The pH was usually fluctuated between 8.5 and 9.0 with the lowest 8.33±0.34,and the highest 9.27±0.27. The maximum COD was (10.80±1.46) mg/L[average (8.18±1.47)mg/L],TNH~_+4-N(0.785±0.162) mg/L[average (0.358± 0.260)mg/L],NO~_-3-N(0.215±0.077) mg/L[average (0.045±0.059)mg/L],NO~_-2-N (0.055±0.051)mg/L[(0.017±0.016)mg/L] and PO_4-P (0.013±0.012)mg/L[(0.009±0.003)mg/L] while the minimum COD was (5.35±2.21)mg/L, TNH~_+4-N (0.047±0.048)mg/L,NO~_-3-N (0.002±0.002)mg/L, NO~_-2-N (0.001±0.001)mg/L and PO_4-P (0.003±0.002)mg/L. The results showed that a fresh water layer on the surface was apparently devoted to the relatively high water temperature in the middle and the bottom water layers, and to affect the vertical distribution of DO, pH,COD contents and nutrients, but did not affect the transparency and light intensity under the ice.