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Performance of Iron Plaque of Wetland Plants for Regulating Iron, Manganese, and Phosphorus from Agricultural Drainage Water
X. Y. Jia, M. L. Otte, Y. Liu, L. Qin, X. Tian, X. G. Lu, M. Jiang and Y. C. Zou
2018
发表期刊Water
卷号10期号:1
其他摘要Agricultural drainage water continues to impact watersheds and their receiving water bodies. One approach to mitigate this problem is to use surrounding natural wetlands. Our objectives were to determine the effect of iron (Fe)-rich groundwater on phosphorus (P) removal and nutrient absorption by the utilization of the iron plaque on the root surface of Glyceria spiculosa (Fr. Schmidt.) Rosh. The experiment was comprised of two main factors with three regimes: Fe2+ (0, 1, 20, 100, 500 mg.L-1) and P (0.01, 0.1, 0.5 mg.L-1). The deposition and structure of iron plaque was examined through a scanning electron microscope and energy-dispersive X-ray analyzer. Iron could, however, also impose toxic effects on the biota. We therefore provide the scanning electron microscopy (SEM) on iron plaques, showing the essential elements were iron (Fe), oxygen (O), aluminum (Al), manganese (Mn), P, and sulphur (S). Results showed that (1) Iron plaque increased with increasing Fe2+ supply, and P-deficiency promoted its formation; (2) Depending on the amount of iron plaque on roots, nutrient uptake was enhanced at low levels, but at higher levels, it inhibited element accumulation and translocation; (3) The absorption of manganese was particularly affected by iron plague, which also enhanced phosphorus uptake until the external iron concentration exceeded 100 mg.L-1. Therefore, the presence of iron plaque on the root surface would increase the uptake of P, which depends on the concentration of iron-rich groundwater.
文献类型期刊论文
条目标识符http://ir.iga.ac.cn/handle/131322/9221
专题湿地生态系统管理学科组
推荐引用方式
GB/T 7714
X. Y. Jia, M. L. Otte, Y. Liu, L. Qin, X. Tian, X. G. Lu, M. Jiang and Y. C. Zou. Performance of Iron Plaque of Wetland Plants for Regulating Iron, Manganese, and Phosphorus from Agricultural Drainage Water[J]. Water,2018,10(1).
APA X. Y. Jia, M. L. Otte, Y. Liu, L. Qin, X. Tian, X. G. Lu, M. Jiang and Y. C. Zou.(2018).Performance of Iron Plaque of Wetland Plants for Regulating Iron, Manganese, and Phosphorus from Agricultural Drainage Water.Water,10(1).
MLA X. Y. Jia, M. L. Otte, Y. Liu, L. Qin, X. Tian, X. G. Lu, M. Jiang and Y. C. Zou."Performance of Iron Plaque of Wetland Plants for Regulating Iron, Manganese, and Phosphorus from Agricultural Drainage Water".Water 10.1(2018).
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