Human impact recorded in the sediment of Honghu Lake, Hubei, China
文献类型:期刊论文
作者 | Yao, SC; Xue, B; Xia, WL |
刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
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出版日期 | 2006 |
卷号 | 18期号:2页码:402-406 |
关键词 | Honghu Lake Lake Deposit Human Impact |
ISSN号 | 1001-0742 |
英文摘要 | Vertical profiles of the total organic carbon (TOC), total nitrogen (TN), phosphorus, susceptibilities, elements and partical size were analyzed in a short Cs-137-dated sediment core collected from Honghu Lake, China. The average sedimentation rate was 1.55 mm/a. The results indicated that trophic status of Honghu Lake in the historical period had experienced three stages. Before 1840 the lake was characterized with lower productivity, TOC was less than 9.92 g/kg; TN was 0.902 to 1.24 g/kg. During about 1840-1950, population increased quickly, there was an obvious change in TOC with an average of 13.0 g/kg. Since 1950, human impacts have accelerated the lake eutrophication and nutrients enriched in the sediment with TOC of 21.7 to 93.1 g/kg, TN of 1.77 to 8.78 g/kg. The heavy metal concentration profiles presented similar distribution trends except Pb center dot and Mn. The results from elements analyses indicated that Honghu Lake had not been polluted by heavy metals except lead. |
公开日期 | 2012-03-08 |
源URL | [http://159.226.73.51/handle/332005/3041] ![]() |
专题 | 南京地理与湖泊研究所_湖泊室 |
推荐引用方式 GB/T 7714 | Yao, SC,Xue, B,Xia, WL. Human impact recorded in the sediment of Honghu Lake, Hubei, China[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2006,18(2):402-406. |
APA | Yao, SC,Xue, B,&Xia, WL.(2006).Human impact recorded in the sediment of Honghu Lake, Hubei, China.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,18(2),402-406. |
MLA | Yao, SC,et al."Human impact recorded in the sediment of Honghu Lake, Hubei, China".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 18.2(2006):402-406. |
入库方式: OAI收割
来源:南京地理与湖泊研究所
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