Occurrence of water phosphorus at the water-sediment interface of a freshwater shallow lake: Indications of lake chemistry
文献类型：期刊论文
| 作者 | Pu, Xiao1,2; Cheng, Hongguang3; Tysklind, Mats4; Xie, Jing5; Lu, Lu5,6; Yang, Shengtian1 |
| 刊名 | ECOLOGICAL INDICATORS
 |
| 出版日期 | 2017-10-01 |
| 卷号 | 81页码:443-452 |
| 关键词 | Water phosphorus Lake chemistry Phosphorus fractionation Exploratory data analysis Water-sediment interface |
| ISSN号 | 1470-160X |
| DOI | 10.1016/j.ecolind.2017.06.006 |
| 通讯作者 | Cheng, Hongguang(chg@bnu.edu.cn) |
| 英文摘要 | Better understanding of the occurrence of water phosphorus (P) at the water-sediment interface is vital to clarify P sources of origin in freshwater shallow lake ecosystems. This study focused on water-sediment interface systems and explored implicit indications of lake chemistry on water P based on a case study of Baiyangdian Lake, North China. 20 variables from 14 sampling sites collected for six months in two years were investigated, including sequentially extracted P fractions. Exploratory data analysis with multivariate statistical techniques and the index of P maximum solubilization potential were employed to examine interactions of water P and coexisting chemicals, and to accomplish pattern recognition of water-sediment interface systems. Results showed that nine key variables (temperature, conductivity, ammonium nitrogen, total nitrogen, sediment total P, metallic oxide bound P, organic P, aluminum and ferrum) were identified and ranked into four latent parameters (physical factors, nutrients, P species, and metals), accounting for 81% of water P variation. Accordingly, the recognized three patterns of water-sediment interface unraveled spatial partitioning for the domination of external or internal P sources. Four variables (temperature, sediment total P, metallic oxide bound P and organic P) were competent to classify patterns of water-sediment interface with 100% correct assignment of cases. Using two parameters (organic P and metallic oxide bound P), discriminant functions produced 85.7% correct assignations, indicating the importance of the two P species in explaining spatial heterogeneity of water P under oxic and alkaline circumstances. This study provides an operational zoning frame and implications for eutrophication management applicable to freshwater shallow lakes. |
| WOS关键词 | EUTROPHICATION ; FRACTIONATION ; SPECIATION ; NITROGEN ; IMPACT ; CHINA ; FORMS ; RIVER |
| 资助项目 | projects of National Natural Science Foundation of China[41301529] ; projects of National Natural Science Foundation of China[41471396] ; projects of National Natural Science Foundation of China[41601581] ; GLOCOM project (EU FP7-People)[PIRSES-GA-2010-269233] ; National Science and Technology Support Plan during the 12th Five-year Plan Period of China[2015BAC02B02] ; Beijing Natural Science Foundation[8172015] ; China Postdoctoral Science Foundation[2016LH0002] |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000417229100043 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | projects of National Natural Science Foundation of China ; GLOCOM project (EU FP7-People) ; National Science and Technology Support Plan during the 12th Five-year Plan Period of China ; Beijing Natural Science Foundation ; China Postdoctoral Science Foundation |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/56810]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Cheng, Hongguang |
| 作者单位 | 1.Beijing Normal Univ, Sch Geog, State Key Lab Remote Sensing Sci, Beijing 100875, Peoples R China 2.Capital Normal Univ, Coll Resource Environm & Tourism, Beijing 100048, Peoples R China 3.Beijing Normal Univ, Sch Environm, Beijing 100875, Peoples R China 4.Umea Univ, Dept Chem, S-90187 Umea, Sweden 5.Chinese Acad Environm Planning, Beijing 100012, Peoples R China 6.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Pu, Xiao,Cheng, Hongguang,Tysklind, Mats,et al. Occurrence of water phosphorus at the water-sediment interface of a freshwater shallow lake: Indications of lake chemistry[J]. ECOLOGICAL INDICATORS,2017,81:443-452. |
| APA | Pu, Xiao,Cheng, Hongguang,Tysklind, Mats,Xie, Jing,Lu, Lu,&Yang, Shengtian.(2017).Occurrence of water phosphorus at the water-sediment interface of a freshwater shallow lake: Indications of lake chemistry.ECOLOGICAL INDICATORS,81,443-452. |
| MLA | Pu, Xiao,et al."Occurrence of water phosphorus at the water-sediment interface of a freshwater shallow lake: Indications of lake chemistry".ECOLOGICAL INDICATORS 81(2017):443-452. |
入库方式： OAI收割
来源：地理科学与资源研究所
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