太湖百渎港湿地植物群落沉积物粒度分布特征  

Grain size distribution characteristics of the sediments in the wetland plant community of the Baidu Port of Taihu Lake

作　　者：黄玉洁[1] 张银龙[1] 孙雅辉[1] 杨均科[1] 李文朝[2] 于海兵[3] 

机构地区：[1]南京林业大学森林资源与环境学院,南京210037 [2]中国科学院南京地理与湖泊研究所 [3]浙江省水利河口研究院

出　　处：《林业科技开发》2011年第3期50-54,共5页China Forestry Science and Technology

基　　金：江苏省高校自然科学研究重大项目(09KJA180002);林业公益性科研专项(200904001-3);江苏省环保科研项目(2008013)

摘　　要：以太湖百渎港湿地植被恢复区为研究区,研究湿地植物群落沉积物粒度分布特征。结果表明:研究区沉积物中黏土含量平均值为10.44%,粉砂含量平均值73.85%,砂含量平均值为15.75%,即粉砂的平均值最高,砂其次,黏土最低,说明沉积物组成以粉砂为主。从平均粒径的平均值分析来看,对照区沉积物的颗粒基本上比其他湿地植物群落分布区总体要粗,说明湿地植物的存在有利于细颗粒的沉降。在58个采样点中,有35个采样点的分选系数处于中级别,有45个采样点的偏态处于正偏级别,有32个采样点的峰态处于窄级别。The study in the wetland plant restoring areas of the Baidu Port of Taihu Lake was carried out on grain size distributional characteristics.The results showed that the average content of the clay,silt and sand was 10.44%,73.85% and 15.75% respectively in the sediments of the studied area.This indicated that the sediments were consisted of silt primarily.From the mean grain size,the particles in the control areas were basically coarser than that in the other wetland plant community areas because the wetland plants were favorable for the sediment of the fine particles.In 58 sites the sorting coefficient of 35 sites belonged to moderate level,skewness of 45 sites belonged to positively skewed level and kurtosis of 32 sites belonged to narrow level.

关 键 词：湿地植物群落 沉积物 粒度 分布特征 太湖百渎港 

分 类 号：X703[环境科学与工程—环境工程]