生态学杂志2009，Vol.28Issue(11)：2245-2249,5.
太湖五里湖富营养化的碳同位素记录
Historical eutrophication in Wuli Bay of Taihu Lake, China based on carbon isotope record
摘要
Abstract
Through the analysis of total organic carbon, total nitrogen, and total phosphorus con-centrations in surface sediment cores from Wuli Bay of Taihu Lake, the historical record of phos-phate input in the Bay was studied, and in combining with the analysis of carbon isotope value of bulk sedimentary organic matter, the evolution process of the primary productivity and eutrophi-cation in the Bay was revealed. The carbon isotope value of the sediment total organic C was -26. 6‰ on average, with a variation between-27.0‰ and-26. 3‰. It was decreased with depth up to the lowest value at 5 cm, subsequently increased gradually up to the highest value at 12 cm, and then fluctuated downward with the depth, which suggested that the evolvement of eu-trophication, productivity, and primary producer was associated with the increasing phosphorus input from human activities. Moreover, the concentrations of total phosphorus and the C/N atom-ic ratios of total organic carbon to total nitrogen recorded the succession process of aquatic plant community from float grass to float grass + algae to algae.关键词
总磷/C/N原子比值/碳同位素/富营养化/五里湖Key words
total phosphorus/ C/N atomic ratio/ carbon isotope/ eutrophication/ Wuli Bay分类
资源环境引用本文复制引用
李军,肖化云,朱兆洲,王仕禄,王美丽..太湖五里湖富营养化的碳同位素记录[J].生态学杂志,2009,28(11):2245-2249,5.基金项目
环境地球化学国家重点实验室开放课题和自主课题、国家自然科学基金项目(90610037)、天津市科技发展计划项目(06YFSZSF05100)和贵州省科学技术基金资助项目([2007]2167). （90610037）
