水资源与水工程学报2017，Vol.28Issue(2)：105-109,114,6.DOI:10.11705/j.issn.1672-643X.2017.02.18
呼伦湖沉积物中环境敏感粒度组分提取
The extraction of the environmentally sensitive grain size composition in the sediment of Hulun Lake
摘要
Abstract
A 100cm length of sediment core was taken from Hulun Lake of China in March,2015.The grain size analysis was carried out and the vertical distribution series of the grain size composition profile was determined.There are 4 main stages with 18cm,60cm and 86cm as divisions.The variations of the grain size composition that was 〈 16μm and 〉 32μm were in opposite directions,and the composition variations of the median grain size and sandy were similar.The environmentally sensitive grain size composition of the sediment core of Hulun Lake was larger than 30μm determined by particle size standard deviation method.Two main controlling factors F1 and F2 were obtained by the principal component analysis method,which accounted 88.12％ of the variation of the grain size characteristics.By combining the two methods,the information of the paleoclimate (precipitation,monsoon,ete) could be effectively investigated,and the other environmental factors could also be indicated.关键词
敏感粒度组分/湖泊沉积物/呼伦湖Key words
grain size environmentally sensitive grain size composition/lake sediment/Hulun Lake分类
天文与地球科学引用本文复制引用
王静洁,李畅游,赵胜男,梁丽娥,郭金燕,付尧..呼伦湖沉积物中环境敏感粒度组分提取[J].水资源与水工程学报,2017,28(2):105-109,114,6.基金项目
国家自然科学基金项目(51339002,51569019,51509133) （51339002,51569019,51509133）
内蒙古农业大学优秀青年科学基金项目(2014XYQ-10) （2014XYQ-10）
高等学校博士学科点专项科研基金项目(20131515120005) （20131515120005）
