期刊论文

中文

环境科学

0250-3301

2012

33

9

3064-3069

10.13227/j.hjkx.2012.09.046

2008ZX07101-001,2009ZX07101-009:水体污染控制与治理科技重大专项 863;2005AA60101005:国家高技术研究发展计划（863计划）

本校为第一机构

采集了太湖西岸湖滨带的表层沉积物,研究了沉积物中氮、磷和有机质的空间分布并进行评价.结果表明,表层沉积物氮、磷和有机质含量基本上呈由近岸向远岸递增的趋势,各点表层沉积物有机质平均含量7 124.00 mg.kg~(-1),介于2 261.78~11 963.10 mg.kg~(-1);总氮平均含量819.20 mg.kg~(-1),介于343.20~1 390.12 mg.kg~(-1);总磷平均含量379.39 mg.kg~(-1),介于197.46~570.85 mg.kg~(-1).沉积物中C/N值为9.5.沉积物中有机质及营养盐来源于湖中藻类和水生高等植物.采用有机指数和有机氮评价太湖西岸湖滨带沉积物的环境质量,有机指数平均为0.037,有机氮为0.044%,总体上属于尚清洁范畴.远岸端点位沉积物有...

The surface sediments in western lakeside belt of Taihu Lake were collected.The spatial distribution of nutrients and pollution evaluation were studied.The results showed that concentration of the nitrogen,phosphorus and organic matter in the surface sediments had an increasing tendency from inshore to the far shore.The concentration of organic matter in the sediments ranged from 2 261.78 mg·kg^-1 to 11 963.10 mg·kg^-1,with the average of 7 124.00 mg·kg^-1.Total nitrogen concentration in the sediments ranged from 343.20 mg·kg^-1to 1 390.12 ...