CAJ | 학술논문

以天津于桥水库作为我国北方湖泊的代表,应用淡水沉积物磷形态的标准测试程序(SMT)对于桥水库6个表层沉积物样品的理化特征及磷赋存形态进行分析,并在此基础上探讨了各形态磷之间及各形态磷与沉积物理化特征,如阳离子交换量、有机质总量、颗粒组成、主要金属含量之间的相关性.结果表明,研究区域内总磷含量为354～581 mg·kg~(-1),其中以无机磷(IP)为主;占总磷含量的57.3%～74.7%;3种主要磷形态含量的大小依次为Ca-P>OP>Al/Fe-P,其中Ca-P是沉积物中磷的主要赋存形态;随着沉积物中有机磷含量的增加,有机质总量与阳离子交换量也逐渐提高,细粉粒(0.01～0.005 mm)的含量也有所增加.此外,还对水库调水前后沉积物磷赋存形态的变化进行了研究,发现沉积物在调水期间主要扮演"汇"的角色,其中Fe/Al-P为调水期内变化最为活跃的磷形态.
이천진우교수고작위아국북방호박적대표,응용담수침적물린형태적표준측시정서(SMT)대우교수고6개표층침적물양품적이화특정급린부존형태진행분석,병재차기출상탐토료각형태린지간급각형태린여침적물이화특정,여양리자교환량、유궤질총량、과립조성、주요금속함량지간적상관성.결과표명,연구구역내총린함량위354～581 mg·kg~(-1),기중이무궤린(IP)위주;점총린함량적57.3%～74.7%;3충주요린형태함량적대소의차위Ca-P>OP>Al/Fe-P,기중Ca-P시침적물중린적주요부존형태;수착침적물중유궤린함량적증가,유궤질총량여양리자교환량야축점제고,세분립(0.01～0.005 mm)적함량야유소증가.차외,환대수고조수전후침적물린부존형태적변화진행료연구,발현침적물재조수기간주요분연"회"적각색,기중Fe/Al-P위조수기내변화최위활약적린형태.
The standard measurement and test(SMT) procedure for freshwater sediments was applied to the investigation of phosphorous forms in the surface sediments (0～10 cm) which obtained from six various regions in Yuqiao Reservoir. The relationship between different phosphorous forms,as well as physical-chemical properties including cation exchange capacity,organic matter content,particle composition and content of the main mental,were analyzed and discussed. The results suggested that the total phosphorous content,in which inorganic-P takes 57.3％～74.7％,ranged from 354 to 581 mg·kg~(-1). The size order of the three main forms of phosphorus speciation was Ca-P>OP>Al/Fe-P,and the Ca-P was the majority of TP. As the concentrations of organophosphorus increase,organic matter,cation exchange capacity and clay(0.01～0.005 mm) were also on the increase. The comparative study on phosphorus forms in sediment before and after water transfer of the Yuqiao Reservoir showed that the sediment sinks phosphorus,and the Fe/Al-P was the most active phosphorus forms in the transfer period.