Phosphorus in groundwater discharge – A potential source for lake eutrophication

Meinikmann, Karin; Hupfer, Michael; Lewandowski, Jörg

doi:10.1016/j.jhydrol.2015.02.031

Cited by 168 publications

(85 citation statements)

References 47 publications

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“…The increase of phosphorus concentration in water has been considered to be the primary reason for eutrophication (Meinikmann et al, 2015). As a major component of phosphorus in the aquatic environment, organic phosphorus plays an important role in the phosphorus cycle (Qin et al, 2015;Zhu et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

The role of Fe(III) on phosphate released during the photo-decomposition of organic phosphorus in deionized and natural waters

et al. 2016

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Section: Introductionmentioning

confidence: 99%

The role of Fe(III) on phosphate released during the photo-decomposition of organic phosphorus in deionized and natural waters

et al. 2016

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“…Furthermore, the use efficiency of P fertilizer is as low as 8–33%7, which means that a large part of the P fertilizer is immobilized in soil through sorption with other cations8, in which a part of the immobilized P will be loss into river and leaks with surface runoff. The net loss of P from the world’s cropland is estimated at approximately 10.5 tons each year, nearly one half of the P extracted yearly3, which has led to widespread river eutrophication910. Therefore, P is both a critical and polluting element and must be used more efficiently and sustainably in the future to help safeguard food, energy and water security111213.…”

mentioning

confidence: 99%

Increase phosphorus availability from the use of alfalfa (Medicago sativa L) green manure in rice (Oryza sativa L.) agroecosystem

Gao

Shi

et al. 2016

Sci Rep

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Alfalfa is a good green manure source, but its effect on rice growth has not been fully elucidated. Two green manure species, alfalfa and broad bean (Vicia faba L.), and two N fertilizer levels, alone or combination, were applied to a rice field. The results indicated that alfalfa had more pronounced effects on increasing soil labile phosphorus (P) fractions (including NaHCO3-Pi, NaOH-Pi), P uptake and soil enzyme activities (dehydrogenase, urease, acid phosphatase and β-glucosidase) than broad bean and N fertilizer. The transformation of NaHCO3-Po to labile P regulated by alfalfa played a significant direct and indirect effect on grain yield. Although a much lower N input from alfalfa addition, a similar grain yield with N fertilizer treatment was achieved, and the integration of alfalfa with N fertilizer produced the highest grain yield and P availability, which was associated with the highest urease, acid phosphatase and β-glucosidase activity in soil. These results indicate that alfalfa green manure had a great ability of increasing grain yield through enhancing P availability in rice paddy, which could give us a way to reduce N fertilizer application by enhancing P availability.

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“…Industrial pollution is one of the main sources of phosphorous pollution in a river (Meinikmann et al 2015). The concentration of TP rises sharply after the Min River flows through Leshan (from M9 to M10).…”

Section: Effect Of Industrializationmentioning

confidence: 99%

Ten-year change of total phosphorous pollution in the Min River, an upstream tributary of the Three Gorges Reservoir

et al. 2016

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Understanding the spatial and temporal variation of nutrient concentrations, loads and their distribution from upstream tributaries is important for management of large lakes and reservoirs. The Min River is an important tributary of the upper reaches of the Three Gorges Reservoir (TGR) that contributes about 20 % of the inflow water from the Yangtze River to the TGR. It is also one of the main phosphorous sources of the TGR. In this study, total phosphorous (TP) concentrations and hydrological data from 2004 through 2014 for 13 sites in Min River and its tributaries were analyzed. The result suggested that the concentration of TP was comparatively lower in the upstream of the Min River and Dadu River, but tended to increase in recent years. Additionally, the TP pollution status in the Min River basin has gradually evolved from local pollution to whole-basin pollution. The concentration of TP in the Min River main stream increased, decreased and then increased again along the waterway. Pollution from nonpoint sources was the main contribution in the upstream portion and Outer River basin of Min River. Pollution from point sources was more serious than that from nonpoint sources in Chengdu, Meishan and Leshan segment. Specifically, TP pollution in Min River of Chengdu segment (Huanglongxi, Inner River) was primarily affected by urbanization, while Leshan segment (Yuebo) was mainly affected by glyphosate production. Controlling pollution from nonpoint sources and improving the sewage collection rate to reduce TP loads will be the primary task in the upstream portion and Outer River basin. Point source pollution controlling will still be the primary task associated with water quality management in the Inner River (Chengdu segment) and the downstream (Leshan segment) basin of Min River for the foreseeable future. Pollution from both point sources and nonpoint sources should be cared in the other area of Min River basin.

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Phosphorus in groundwater discharge – A potential source for lake eutrophication

Cited by 168 publications

References 47 publications

The role of Fe(III) on phosphate released during the photo-decomposition of organic phosphorus in deionized and natural waters

The role of Fe(III) on phosphate released during the photo-decomposition of organic phosphorus in deionized and natural waters

Increase phosphorus availability from the use of alfalfa (Medicago sativa L) green manure in rice (Oryza sativa L.) agroecosystem

Ten-year change of total phosphorous pollution in the Min River, an upstream tributary of the Three Gorges Reservoir

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