Gerold, Gerhard

[["dc.bibliographiccitation.firstpage","259"],["dc.bibliographiccitation.journal","Science of The Total Environment"],["dc.bibliographiccitation.lastpage","274"],["dc.bibliographiccitation.volume","635"],["dc.contributor.author","Nóbrega, Rodolfo L.B."],["dc.contributor.author","Guzha, Alphonce C."],["dc.contributor.author","Lamparter, Gabriele"],["dc.contributor.author","Amorim, Ricardo S.S."],["dc.contributor.author","Couto, Eduardo G."],["dc.contributor.author","Hughes, Harold J."],["dc.contributor.author","Jungkunst, Hermann F."],["dc.contributor.author","Gerold, Gerhard"],["dc.date.accessioned","2020-12-10T15:21:12Z"],["dc.date.available","2020-12-10T15:21:12Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1016/j.scitotenv.2018.03.356"],["dc.identifier.issn","0048-9697"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/72947"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Impacts of land-use and land-cover change on stream hydrochemistry in the Cerrado and Amazon biomes"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","e0179414"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","PLoS ONE"],["dc.bibliographiccitation.volume","12"],["dc.contributor.author","Nobrega, Rodolfo L. B."],["dc.contributor.author","Guzha, Alphonce C."],["dc.contributor.author","Torres, Gilmar N."],["dc.contributor.author","Kovacs, Kristof"],["dc.contributor.author","Lamparter, Gabriele"],["dc.contributor.author","Amorim, Ricardo S. S."],["dc.contributor.author","Couto, Eduardo"],["dc.contributor.author","Gerold, Gerhard"],["dc.date.accessioned","2018-11-07T10:22:43Z"],["dc.date.available","2018-11-07T10:22:43Z"],["dc.date.issued","2017"],["dc.description.abstract","Understanding the impacts of land-use change on landscape-hydrological dynamics is one of the main challenges in the Northern Brazilian Cerrado biome, where the Amazon agricultural frontier is located. Motivated by the gap in literature assessing these impacts, we characterized the soil hydro-physical properties and quantified surface water fluxes from catchments under contrasting land-use in this region. We used data from field measurements in two headwater micro-catchments with similar physical characteristics and different land use, i.e. cerrado sensu stricto vegetation and pasture for extensive cattle ranching. We determined hydraulic and physical properties of the soils, applied ground-based remote sensing techniques to estimate evapotranspiration, and monitored streamflow from October 2012 to September 2014. Our results show significant differences in soil hydro-physical properties between the catchments, with greater bulk density and smaller total porosity in the pasture catchment. We found that evapotranspiration is smaller in the pasture ( 639 +/- 31% mm yr(-1)) than in the cerrado catchment ( 1,004 +/- 24% mm yr(-1)), and that streamflow from the pasture catchment is greater with runoff coefficients of 0.40 for the pasture and 0.27 for the cerrado catchment. Overall, our results confirm that conversion of cerrado vegetation to pasture causes soil hydro-physical properties deterioration, reduction in evapotranspiration reduction, and increased streamflow."],["dc.description.sponsorship","Open-Access-Publikationsfonds 2017"],["dc.identifier.doi","10.1371/journal.pone.0179414"],["dc.identifier.isi","000403274700035"],["dc.identifier.pmid","28609462"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/14556"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/42326"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","PUB_WoS_Import"],["dc.publisher","Public Library Science"],["dc.relation.issn","1932-6203"],["dc.relation.orgunit","Fakultät für Geowissenschaften und Geographie"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0/"],["dc.title","Effects of conversion of native cerrado vegetation to pasture on soil hydro-physical properties, evapotranspiration and streamflow on the Amazonian agricultural frontier"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","508"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Hydrological Processes"],["dc.bibliographiccitation.lastpage","521"],["dc.bibliographiccitation.volume","29"],["dc.contributor.author","Guzha, Alphonce C."],["dc.contributor.author","Nobrega, Rodolfo L. B."],["dc.contributor.author","Kovacs, Kristof"],["dc.contributor.author","Rebola-Lichtenberg, Jessica"],["dc.contributor.author","Amorim, Ricardo S. S."],["dc.contributor.author","Gerold, Gerhard"],["dc.date.accessioned","2018-11-07T10:00:55Z"],["dc.date.available","2018-11-07T10:00:55Z"],["dc.date.issued","2015"],["dc.description.abstract","On the basis of interactions between landscape characteristics and precipitation inputs, watersheds respond differently to different climatic inputs. The objective of this study was to quantitatively characterize controls on runoff generation from two first order micro-catchments in the Amazonia region. The study investigated the variation of hydrological signatures at micro-catchment scale and related these to landscape and land cover differences and weather descriptors that control the observed responses. One catchment is a pasture cleared of all natural vegetation in the early 1980s, and the second catchment is a primary tropical forest with minor signs of disturbance. Water levels and meteorological variables were continuously monitored during the study period (December 2012-May 2013). Water level measurements were converted to discharge, evapotranspiration was quantified using Penman-Monteith equation and catchment pedohydrological properties were also determined. During the study period, mean total rainfall was 1200mm, and direct runoff ratios were 0.29 and 0.12 for the pasture and forest catchments, respectively. Base flow index was relatively high in the forest catchment (0.76) compared with pasture catchment (0.63). Results from this study showed that the pasture catchment had a 35% higher mean stream flow. Analysis of selected individual rainstorm events also showed peak discharges, which were attained much faster in the pasture catchment compared with the forest catchment. At both sites, rainfall-runoff responses were highly dependent on surface and subsurface flow generation. Overland flow was observed in the pasture site during intense rainfall events. The pasture catchment exhibited higher event water contribution than the forest catchment. Findings from this research suggest that shallow lateral pathways play a significant role in controlling runoff generation processes in the forest catchment, whereas infiltration excess runoff generation processes dominate in the pasture catchment. The findings in this study suggest that the conversion of forest to pasture may lead to important changes in runoff generation processes and water storage in these head water catchments. Copyright (c) 2014 John Wiley & Sons, Ltd."],["dc.identifier.doi","10.1002/hyp.10161"],["dc.identifier.isi","000347848900003"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/37909"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.relation.issn","1099-1085"],["dc.relation.issn","0885-6087"],["dc.title","Characterizing rainfall-runoff signatures from micro-catchments with contrasting land cover characteristics in southern Amazonia"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","e00819"],["dc.bibliographiccitation.journal","Global Ecology and Conservation"],["dc.bibliographiccitation.volume","21"],["dc.contributor.author","Nóbrega, Rodolfo L.B."],["dc.contributor.author","Ziembowicz, Taciana"],["dc.contributor.author","Torres, Gilmar N."],["dc.contributor.author","Guzha, Alphonce C."],["dc.contributor.author","Amorim, Ricardo S.S."],["dc.contributor.author","Cardoso, Domingos"],["dc.contributor.author","Johnson, Mark S."],["dc.contributor.author","Santos, Túlio G."],["dc.contributor.author","Couto, Eduardo"],["dc.contributor.author","Gerold, Gerhard"],["dc.date.accessioned","2020-12-10T14:24:15Z"],["dc.date.available","2020-12-10T14:24:15Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1016/j.gecco.2019.e00819"],["dc.identifier.issn","2351-9894"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/16646"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/72195"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.notes.intern","Merged from goescholar"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Ecosystem services of a functionally diverse riparian zone in the Amazon–Cerrado agricultural frontier"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]