[1]ZENG Miao,ZHANG Houyong.Distribution of Soil and Plant Heavy Metals of Reed Wetland in the Yellow River Delta of China During Seasons[J].Research of Soil and Water Conservation,2016,23(04):344-350.
Copy
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
23
Number of periods:
2016 04
Page number:
344-350
Column:
Public date:
2016-04-28
- Title:
-
Distribution of Soil and Plant Heavy Metals of Reed Wetland in the Yellow River Delta of China During Seasons
- Author(s):
-
ZENG Miao1, ZHANG Houyong2
-
1. Aba Teachers College, Wenchuan, Sichuan 623002, China;
2. Ji’nan Research Academy of Environmental Sciences, Ji’nan 250014, China
-
- Keywords:
-
Yellow River Delta; reed wetland; heavy metal; seasons
- CLC:
-
X823;X52
- DOI:
-
-
- Abstract:
-
Surface soils and sediments and plant of reed wetland in the Yellow River Delta of China were chosen for monitoring the contamination levels of heavy metals (i. e., Hg, Cu, Zn, Pb, Cd and Cr) in average season (April), flood season (August), and dry season (October) in 2013. Statistical analysis methods were used to analyze the relationship between the heavy metal contents in soil and vegetation. The results indicated that:(1) the contamination of surface soils and sediments of reed wetland in the Yellow River Delta of Hg, Cu and Zn decreased with season which showed the order:average season > flood season > dry season, and the contamination of surface soils of Hg, Cu and Zn was higher than that of sediments in different seasons, however, the contamination of Pb, Cd and Cr show the opposite trend with season and the contamination of surface soils of Pb, Cd and Cr was lower than that of sediments with local fluctuation, comprehensive analysis showed that the contamination of Hg, Cu and Zn in average season was most serious and Pb, Cd and Cr pollution in dry season was most serious; (2) the contamination of surface soils of reed wetland in the Yellow River Delta of Hg, Cu and Zn was higher than that of sediments and contents of Pb, Cd and Cr in surface soils were lower than those in sediments; (3) the contamination of Hg, Cu, Zn, Pb, Cd and Cr of reed wetland plant in the Yellow River Delta was higher than that of soil, which indicated that plant played a key role in the absorption of heavy metals; (4) correlation analysis showed that the contamination of heavy metals in plant mainly came from the soil, at the same time, the plant of reed wetland in the Yellow River Delta keeps the independence in terms of the absorption of heavy metals from the soil.