中国海洋大学学报（自然科学版）2012，Vol.42Issue(5)：28-34,7.
辽河口芦苇湿地土壤有机碳的积累特征研究
Studies on the Accumulation of Organic Carbon in the Soil in the Reed Wetland at Liaohe Estuary
摘要
Abstract
In order to demonstrate the preservation and degradation of organic matters in the reed wetland, vertical distributions of total organic carbon (TOC) oil, linear alkylbenzene sulfonates (LAS), PAHs and fatty acids (FAs) in the soil were studies in the Liaohe Estuary in March, 2009. The TOC, oil, LAS, PAHs and FAs ranged at 0, 3~9. 3 %, 19. 04~482. 31 mg/kg (dry weight), 0. 84~19. 28 mg/kg (dry weight), 2. 59 ~ 4. 40 mg/kg (dry weight) and 5. 72 ~ 190. 69 mg/kg (dry weight), respectively. The TOC varied and originated from multiple sources. The development on waste treatment helped to decrease the oil aggregation in the soil, associated with the transportation by the reed root system and the selective degradation by microorganisms. LAS decreased significantly by 67. 0 % from surface to subsurface, which was the most rapid degradation among the detected organic matters, whereas PAHs varied little from surface to bottom. Bacteria played a key role in TOC degradation, preferring the organic matter produced in situ under subsurface layer.关键词
有机碳/石油类/阴离子表面活性剂/多环芳烃/脂肪酸/芦苇湿地/辽河口Key words
total organic carbon/ oil/ linear alkylbenzene sulfonates (LAS)/ PAHs/ fatty acids/ reed wetland/ Liaohe Estuary分类
资源环境引用本文复制引用
彭溶,邹立,万汉兴,高亮,高会旺..辽河口芦苇湿地土壤有机碳的积累特征研究[J].中国海洋大学学报（自然科学版）,2012,42(5):28-34,7.基金项目
国家自然科学基金项目(41176064) （41176064）
国家水体污染控制与治理科技重大专项(2012ZX07202-007)资助 （2012ZX07202-007）
