文档介绍：2009年10月第三届全国农业环境科学学术研讨会论文集 611
乌梁素海沉积物有机质特征及其与
富营养化的关系
赵胜男,李畅游,史小红,李卫平,孙标
(内蒙古农业大学水利与土木建筑工程学院,呼和浩特 010018)
摘要:通过分析乌梁素海表层沉积物有机质、总氮与总磷的含量,结果表明:位于湖泊北部表层沉积物有机质含
量较南部高,且表现出沿岸带较丰富的空间分布特征;在水平方向上,有机质与总氮和总磷含量显著相关,表明有
机质富集应是促进湖泊富营养化的重要因素,水体富营养化具有显著的内源性。
关键词:乌梁素海、沉积物、有机质、富营养化
Characteristics anic Matter in the Sediment of wuliangsuhai lake and its Relationship to the
Eutrophication
ZHAO sheng-nan, LI Chang-you, SHI xiao-hong, LI wei-ping , SUN biao
(Inner Mongolia Agricultural University, Huhhot 010018, China)
Abstract: Through analyzing the content anic matter, total nitrogen and total phosphorus in Surface Sediments from the
Wuliangsu Lake, it shows that anic matter content in surface sediments from the north of Wuliangsu Lake is higher than
the south, and has a spatial distribution characteristics of anic matter content in the littoral zone of the Lake. In
horizontal direction, anic matter content has significant correlation with the total nitrogen and total phosphorus content,
demonstrating anic matter accumulation is an important factor which promo 6 tes lake eutrophication and water
eutrophication has an obvious endogenous.
Keywords: wuliangsuhai lake ,anic Matter, Eutrophication
湖泊沉积物是湖泊水体的三大环境要素之一,输入湖泊水体的营养性污染物相当一部分经过各种物理、
化学和生物过程在底质中积累起来,成为湖泊内负荷的重要蓄积库,因此,底泥能成为水体污染物的汇或源[1]。
湖泊底泥中释放出来的营养物,首先进入沉积物的间隙水中,逐步扩散到沉积物表面,再经过湖水的紊流扩
散和风浪作用,逐渐进入上浮水体之中