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Hans-Georg Frede

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Articles 9
Citations 95
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Recent Articles
1.
Breuer L, Hiery N, Kraft P, Bach M, Aubert A, Frede H
Sci Rep . 2015 Nov; 5:16503. PMID: 26561200
We organized a crowdsourcing experiment in the form of a snapshot sampling campaign to assess the spatial distribution of nitrogen solutes, namely, nitrate, ammonium and dissolved organic nitrogen (DON), in...
2.
Bai M, Wilske B, Buegger F, Esperschutz J, Bach M, Frede H, et al.
Environ Sci Pollut Res Int . 2014 Nov; 22(7):5444-52. PMID: 25367644
Biodegradability is a desired characteristic for synthetic soil amendments. Cross-linked polyacrylic acid (PAA) is a synthetic superabsorbent used to increase the water availability for plant growth in soils. About 4%...
3.
Iniguez-Armijos C, Leiva A, Frede H, Hampel H, Breuer L
PLoS One . 2014 Aug; 9(8):e105869. PMID: 25147941
Deforestation in the tropical Andes is affecting ecological conditions of streams, and determination of how much forest should be retained is a pressing task for conservation, restoration and management strategies....
4.
Heinz E, Kraft P, Buchen C, Frede H, Aquino E, Breuer L
Sensors (Basel) . 2013 Dec; 14(1):212-28. PMID: 24366178
We have developed a high-resolution automatic sampling system for continuous in situ measurements of stable water isotopic composition and nitrogen solutes along with hydrological information. The system facilitates concurrent monitoring...
5.
Wilske B, Bai M, Lindenstruth B, Bach M, Rezaie Z, Frede H, et al.
Environ Sci Pollut Res Int . 2013 Sep; 21(16):9453-60. PMID: 24037296
Superabsorbent polymers (SAP) are used, inter alia, as soil amendment to increase the water holding capacity of soils. Biodegradability of soil conditioners has become a desired key characteristic to protect...
6.
Bai M, Kostler M, Kunstmann J, Wilske B, Gattinger A, Frede H, et al.
Rapid Commun Mass Spectrom . 2012 Apr; 25(24):3683-9. PMID: 22468324
A system was developed for the automatic measurements of ¹³CO₂ efflux to determine biodegradation of extra carbon amendments to soils. The system combines wavelength-scanned cavity ring down laser spectroscopy (WS-CRDS)...
7.
Bach M, Frede H
Integr Environ Assess Manag . 2012 Jan; 8(3):543-52. PMID: 22275057
Many policies have been established and actions have been taken to reduce pesticide pollution of surface waters. However, the effectiveness of these initiatives was rarely tested on an empirical basis....
8.
Reichenberger S, Bach M, Skitschak A, Frede H
Sci Total Environ . 2007 Jun; 384(1-3):1-35. PMID: 17588646
In this paper, the current knowledge on mitigation strategies to reduce pesticide inputs into surface water and groundwater, and their effectiveness when applied in practice is reviewed. Apart from their...
9.
Muller K, Bach M, Hartmann H, Spiteller M, Frede H
J Environ Qual . 2002 Feb; 31(1):309-18. PMID: 11837435
Reducing pesticide loads in surface waters implies identifying the pathways responsible for the pollution. The current study documents the pesticide contamination of the river Zwester Ohm, a 4917-ha catchment in...