CAJ | 학술논문

通过研究污染比较严重的珠江广州河段(雅岗至琶洲大桥)的六个断面,共10个采样点的上覆水和间隙水的磷形态分布特征,得上覆水总磷(TP)值为0.705～3.893mg/L,均为劣V类水质.总溶解性磷(TDP)与磷酸盐磷(PO_4~(3-))在各采样点的含昔分布不均匀,由PO_4~(3-)含量显示,各采样点已经有明显的富营养化趋势.通过分析各采样点间隙水磷含量和引起其上下层含量差异的环境因素知间隙水TP与TDP有一定相关性.间隙水上下层TP,TDP,PO_4~(3-)含量差异可能与沉积物有机质和氧化还原环境有一定相关性,总体上认为厌氧环境有利于促进沉积物的磷释放到间隙水.
통과연구오염비교엄중적주강엄주하단(아강지파주대교)적륙개단면,공10개채양점적상복수화간극수적린형태분포특정,득상복수총린(TP)치위0.705～3.893mg/L,균위렬V류수질.총용해성린(TDP)여린산염린(PO_4~(3-))재각채양점적함석분포불균균,유PO_4~(3-)함량현시,각채양점이경유명현적부영양화추세.통과분석각채양점간극수린함량화인기기상하층함량차이적배경인소지간극수TP여TDP유일정상관성.간극수상하층TP,TDP,PO_4~(3-)함량차이가능여침적물유궤질화양화환원배경유일정상관성,총체상인위염양배경유리우촉진침적물적린석방도간극수.
Phosphorus contamination of Guangzhou teach of Pearl River from Yagang to Pazhou Bridge was studied by sampling and analyzing overlying water and pore water in six sections, altogether 10 detected points. The form and distribution characteristics of phosphorus in pore water and overlying water and the relation between them were studied respectively. Through analysis of phosphorus in overlying water in each detected points, results showed that total phosphorus (TP) was 0.705～3.893mg/L, all belonging to grade of interior V according to Environmental Quality Standard for Surface Water. Content of total dissolved phosphorus (TDP) and PO_4~(3-) in each detected point distributed differently. Content of PO_4~(3-) in overlying water showed that all detected points had obvious trend of eutrophication. Through analysis of phosphorus content in pore water and environmental factors which induced the content difference in upper and lower layer of pore water, results indicated that TP and TDP were related in certain degrees. Content difference of TP, TDP and PO_4~(3-) in upper and lower layer of pore water might have certain connection with organic matter, pH and Eh environment in sediment. Anaerobic environment is in favor of the release of phosphorus from sediment to pore water.