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| 1 | An exploratory study on the use of enzyme activities as sediment tracers:biochemical fingerprints?显示文摘Little information exists on the potential of soil enzyme activities,which are sensitive to soil properties and management,for the characterization of sediment sources at the catchment scale.The objective of this study is to explore and evaluate enzyme activity as tracer for sediment fingerprinting in the Hiv catchment(55 km^2),Iran.Therefore,four enzymes were measured from 42 different sampling sites,covering three sediment source areas(rangeland/surface erosion,orchard/surface erosion,and streambank erosion),as well as from 12 sediment samples from reservoir check dams (sediment sinks).The results indicate that,based upon backward mode discriminant analysis,βglucosidase and dehydrogenase,allowed more than 95%of the samples to be correctly assigned to their source areas.These enzymes were selected as input data for a mixing-model to determine the relative contribution of the sampled sediment sources.The mean contributions from rangeland, orchard and streambank sources in the study area were estimated as 11.3%,15.1%and 73.7%, respectively.Using geochemical tracers,the mean contribution from rangeland,orchard and streambank sources was estimated as 14.1%,9.5%and 74.8%,respectively.Combined biochemical and geochemical tracers,similar values were obtained(18.7%,10.7%and 70.7%,respectively).Our results indicate that soil enzyme activity allows for a good characterization of sediment sources,and can provide a complementary tool to currently existing sediment fingerprinting approaches.However, the method should be also tested in other regions. | Kazem NOSRATI Gerard GOVERS Hassan AHMADI Forood SHARIFI Mohammad Ali AMOOZEGAR Roel MERCKX Matthias VANMAERCKE | 2011 | International Journal of Sediment Research2011，26，2： | 5 |
| 2 | L’alimentation entérale précoce du traumatisé cranien显示文摘 | C De Deyne R De Jongh L Merckx J Deghislage R Heylen | 1998 | Annales francaises d’anesthesie et de reanimation1998，，2： | 2 |
| 3 | Determinants of annual fluxes of CO2 and N2O in long-term no-tillage and conventional tillage systems in northern France显示文摘 | Oorts K Merckx R Grehan E | 2007 | Soil Till Res2007，95，： | 1 |
| 4 | Long-term kinetics of phosphate release from soil 显示文摘 | Lookman R Freese D Merckx R | 1995 | Environmental Science & Technology1995，29，6： | 1 |
| 5 | Expression of Biofilm-Associated Genes in Staphylococcus epi- dermidis during In Vitro and In Vivo Foreign Body Infections显示文摘 | Stefaan Johan Vandecasteele Willy Eduard Peetermans Rita Merckx | 2003 | The Journal of Infectious Diseases2003，188，： | 1 |
| 6 | Tumover of root-derived material and related microbial biomass formation in soils of different texture显示文摘 | Merckx R Den Hartog A Van Veen J | 1985 | Soil Biology and Biochemistry1985，17，4： | 1 |
| 7 | Relationship between soil properties and phosphate saturation parameters a transect study in northern Belgium显示文摘 | Lookman R Jansen K Merckx R | 1996 | Geoderma1996，69，34： | 1 |
| 8 | The role of sB in persistence of Staphylococcus epidermidis foreign body infection 显示文摘 | Valerie Pintens Caroline Massonet Rita Merckx | 2008 | Microbiology2008，154，： | 1 |
| 9 | Ex- pression of biofillm associalted genes in Straphylococcus epidermidis during in vitro and in vivo foreign bodyi nfec- tions显示文摘 | Vandecasteele SJ Peetermans WE Merckx R | 2003 | Infect Dis2003，188，5： | 1 |
| 10 | An improved colorimetric method to quantify sugar content of plant tissue 显示文摘 | Buysse J Merckx R | 1993 | Journal of Experimental Botany1993，44，10： | 1 |
| 11 | Sulphur immobilization and availability in soils assessed using isotope dilution显示文摘 | Nziguheba G Smolders E Merckx R | 2005 | Soil Biology & Biochemistry2005，37，： | 1 |
| 12 | Early enternal feeding in cranial trauma显示文摘 | De Deynec De Jongh R Merckx L | 1998 | Aun Fr Anesth Reanim1998，17，2： | 1 |
| 13 | Early enteral feeding in cranial trauma显示文摘 | De Deyne C De Jongh R Merckx L | 1998 | Ann Fr Anesth Reanim1998，17，： | 1 |
| 14 | Reliability of the ica, nap and atlE genes in the discrimination between invasive, colonizing and contaminant Staphylococcus epidermidis isolates in the diagnosis of catheter-related infections 显示文摘 | Vandecasteele S J Peetermans W E Merckx R R | 2003 | Clin Microbiol Infect2003，9，2： | 1 |
| 15 | Potential nitrification rate as a tool for screening toxicity in metal-contaminated soils显示文摘 | SMOLDERS E BRANS K COPPENS F MERCKX R | | 0，，11： | 1 |
| 16 | Transmission of carcinogenic human papillomavirus types from mother to child:a meta-analysis of published studies显示文摘 | Merckx M Arbyn M Meys J | 2013 | Eur J Cancer Prev2013，22，3： | 1 |
| 17 | Early enteral feeding in cranial trauma显示文摘 | De Jongh R Merckx L | 1998 | Ann Fr Anesth Reanim1998，17，： | 1 |
| 18 | Effect of epinephrine on end-tidal carbon dioxide pressure during prehospital cardiopulmonary resuscitation 显示文摘 | Cantineau JP Merckx P Lambert Y | 1994 | Am J Emerg Med1994，12，： | 1 |
| 19 | Reliability of the ica,aap and atlE genes in the discrimination between invasive,colonizing and contaminant Staphy lococcus epidermidis isolates in the diagnosis of catheterrelated infections显示文摘 | Vandecasteele SJ Peetermans WE R Merckx R | 2003 | Clin Microbiol Infect2003，9，2： | 1 |
| 20 | Relationship between soil properties and phosphate saturation parameters a transect study in northern Belgium显示文摘 | Richard Lookman Katleen Jansen Roel Merckx Karel Vlassak | 1996 | Geoderma1996，，3： | 1 |
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