文档介绍：Heavy Metals in Sediments and Plants of the Yellow
River Wetland Nature Reserve of Zhengzhou, China
Qingli Cheng * Wenlin Wang
Department of Environmental and Municipal Engineering Department of Biology
North China University of Water Conservancy and Electric Henan Institute of Education
Power, Zhengzhou, 450046, China
Zhengzhou 450011, China
Abstract— In this study, heavy metal contents (Cu, Cr, Pb, Mn, Even the interaction of heavy metals and other materials
Cd) were measured in sediments and plants from Yellow River anisms were also revealed. In Baotou section, the
wetland Nature Reserve of Zhengzhou, China. 6 species of family surface sediments from the relatively clean reach were
Compositae, 5 species of family Gramineae and samples of considered as the adsorbent, and the experimental results
sediments were taken from 4 different sites and analyzed by revealed that the adsorptive capacities of the heavy metals were
flame atomic absorption spectrophotometer for elemental controlled by different adsorption mechanisms in different ion
contents. In general, sediments in the study area were mainly concentration ranges [7]. In Lanzhou reach, the existence of
contaminated by Mn, Cd, Cr and Pb. Compared with the copper could also enhance the sorption of di-n-butyl phthalate
contents of elements in sediments, the accumulation levels i