CAJ | 학술논문

根据Hupfer方法可将沉积物中磷形态划分为弱吸附态磷(NH4Cl-P)、铁磷(Fe-P, BD-P)、铝磷(Al-P, NaOH-P)、钙磷(Ca-P, HCl-P)和残渣态磷.本文通过数据提取和分析,发现全磷(TP)与以上各部分磷之间存在极显著的相关性(P<0.001),其中, TP与NH4Cl-P、BD-P和HCl-P之间的关系符合一元二次方程,与其他组分的关系符合线性关系.进一步分析表明:沉积物自身磷质量分数、外源磷负荷、悬浮条件和氧化还原电位是影响磷形态分级和生物有效性的主要因素,并就湖泊中磷的形态分级和转化进行了探讨,为今后评价磷的内源循环提供理论参考.
근거Hupfer방법가장침적물중린형태화분위약흡부태린(NH4Cl-P)、철린(Fe-P, BD-P)、려린(Al-P, NaOH-P)、개린(Ca-P, HCl-P)화잔사태린.본문통과수거제취화분석,발현전린(TP)여이상각부분린지간존재겁현저적상관성(P<0.001),기중, TP여NH4Cl-P、BD-P화HCl-P지간적관계부합일원이차방정,여기타조분적관계부합선성관계.진일보분석표명:침적물자신린질량분수、외원린부하、현부조건화양화환원전위시영향린형태분급화생물유효성적주요인소,병취호박중린적형태분급화전화진행료탐토,위금후평개린적내원순배제공이론삼고.
In the Hupfer method, the P fraction is classified as NH4Cl-P (loosely adsorbed P), BD-P (Fe-P), NaOH-P (Al-P), HCl-P (Ca-P) and residual-P. We extensively extracted the P fraction data from previous pub-lished papers and analyzed all the data together. The results show that total phosphorus (TP) was significantly correlated with NH4Cl-P, BD-P, NaOH-P, HCl-P and residual-P (P<0.001). Quadratic relationships were found between TP and NH4Cl-P, BD-P and HCl-P. There were significant linear relationships between TP and NaOH-P and residual-P. Furthermore, the native P content of sediments, external sources of P loading, resuspension of sediment particles and redox potentials were demonstrated as major factors influencing P distribution. This study provides a novel insight into the mutual correlation of each P composition and will help identify the hotspots of P release region by using fractionation and TP under favorable conditions.