Abstract：The distribution pattern of microbial ATP-biomass was analyzed in the sediment of the Songhua River basin. The results indicated that ATP exhibited a significant geographical distribution pattern. There was a higher ATP content in the river source and urban areas than in other parts of the river basin. Statistical analysis, including principal component analysis, multivariate regression tree and response model analysis, showed that ATP was one of the main principal characteristics in sediment. Among 11factors measured in the present study, the distribution variance of ATP can be explained first by geographic distance (latitude, 39.79%), and then by environmental factors (total nitrogen, 18.49%; nitrate nitrogen, 16.24%). The ATP content changes with latitude were fit to a quadratic curve (P<0.001). It was positively correlated to total nitrogen content (P=0.027) and negatively correlated to nitrate nitrogen content (P<0.01). Meanwhile, a significant correlation was also observed between ATP content and organic matter, total phosphorus and altitude (P<0.05). The significant correlation to multiple nutrients suggests that ATP monitoring has considerable potential for the evaluation of nutrient levels in aquatic environments.
刘杰, 屠腾, 纪玉蕊, 王莹莹. 松花江流域沉积物ATP微生物量的分布特征[J]. 中国环境科学, 2015, 35(1): 171-178.
LIU Jie, TU Teng, JI Yu-Rui, WANG Ying-Ying. Distribution pattern of microbial ATP-biomass in the sediment of the Songhua River basin. CHINA ENVIRONMENTAL SCIENCECE, 2015, 35(1): 171-178.
