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| 1 | Chemical and spectroscopic characterization of humic substances from sediment and riparian soil of a highly polluted urban river (Suquía River, Cordoba, Argentina)显示文摘The Suquía River,the largest urban river in C ordoba(Argentina),has been severely polluted for decades.Actions must be taken to restore its environmental quality by managing riparian zones for increased water-self purification.The current study aimed to characterize organic matter(OM)dynamics and humic substances(HS)spectrochemical properties along the lower-middle basin of the Suquía River.Riparian soil(0e20 cm)and sediment(0e10 cm)samples were collected from a reference location(S1)and four polluted sites(S2eS5)during a low-flow period.The contents of soil and sedimentary OM and HS fractions were analyzed by wet oxidation,as well as HS Fourier transform infrared(FT-IR)and ultravioletevisible(UVeVis)spectrochemical properties.The OM and HS fractions from riparian soil were high upstream of C ordoba City(S1 and S2,50.2e50.4 g/kg OM)and within a 50 km downstream location(S5,30.9 g/kg OM)owing to a surplus of fresh plant biomass-carbon(C)inputs.Highly heterogeneous sediment samples did not show any significant differences among sites(P>0.05).The lowest values of the ratio of absorbances at 465 and 665 nm(E4/E6)(1.78)and the Δ log K(0.15)coefficient(a measure of HS maturity degree)were obtained downstream of C ordoba City,for both riparian soil and sediment,indicating that HS were enriched by more condensed aromatic structures within highly degraded portions of the river.All samples exhibited similar IR spectra,implying overlapping recalcitrant-C structures at the functional group level,but with different absorbance intensity.Data from the current study constitute a baseline for understanding the chemical nature of HS from sediment and riparian soil along the Suquía River and can be used as a reference for future studies tracking OM compositional changes over time. | Carolina Merlo Carolina Vázquez Ana Graciela Iriarte Carlos Matías Romero | 2020 | International Journal of Sediment Research2020，35，3： | 3 |
| 2 | Spatial heterogeneity of light and woody seedling regeneration in tropical wet forest 显示文摘 | Nicotra A Chazdon R L Iriarte S V B | 1999 | Ecology1999，80，： | 2 |
| 3 | Bacteriophages for plant disease control 显示文摘 | Jones J B Jackson L E Balogh B Obradovic A Iriarte F B Momol M T | 2007 | Annu Rev Phytopathol2007，45，： | 1 |
| 4 | Spatial heterogeneity of light and woody seedling regeneration in tropical wet forests 显示文摘 | NICOTRA A B CHAZDON R L IRIARTE S V B | 1999 | Ecology1999，80，6： | 1 |
| 5 | Antiplasticization of a Polyamide: a Positron Annihilation Lifetime Spectroscopy Study显示文摘 | Garcia A Iriarte M Uriarte C | 2004 | Polymer2004，45，： | 1 |
| 6 | Growth of nickel disilicide nanowires by CVD显示文摘 | Iriarte GF | 2010 | Journal of Non-Crystalline Solids2010，356，2324： | 1 |
| 7 | Correlation between symptom fatigue and muscular fatigue in multiple sclerosis显示文摘 | Iriarte J de Castro P | 1998 | Eur J Neurol1998，5，6： | 1 |
| 8 | Acceleration of monte carlo modeling of light transport in turbid media; an approach based on hybrid, theoretical and numerical, calculations 显示文摘 | Di Rocco H O Iriarte D I Pomarico J A | 2009 | Journal of Quantitative Spec- troscopy & Radiative Transfer2009，110，： | 1 |
| 9 | Distribution of mosquitoes on a hill of Nagasaki City, with emphasis to the distance from human dwellings显示文摘 | Iriarte W Tsuda Y Wada Y | 1991 | Trop Med1991，33，： | 1 |
| 10 | Isolation and Characterization of Bacillus thuringiensis Strains from Aquatic Environments in Spain显示文摘 | Javier Iriarte Manuel Porcar M.-Marguerite Lecadet Primitivo Caballero | 2000 | Current Microbiology2000，，6： | 1 |
| 11 | Isolation and characterization of Bacillus thuringiensis strains from aquatic environments in Spain显示文摘 | IRIARTE J PORCAR M LECADET M | 2000 | Curr Microbiol2000，40，6： | 1 |
| 12 | Performance characteristics of three aeration systems in the composting of sheep manure and straw 显示文摘 | Solano M L Iriarte F Ciria P | 2001 | Journal of Agricultural Engineering Research2001，79，3： | 1 |
| 13 | Relevancia cliniea de los movimientos periodicos de las piernas durante el sueno en paci- entes con apneas obstructivas del sueno显示文摘 | Iriarte J Irimia P Urriza J | 2000 | J Rev Neurol2000，30，2： | 1 |
| 14 | Super-high-frequency SAW resonators on AlN/Diamond 显示文摘 | RODRIGUEZ-MADRID J G IRIARTE G F PEDROS J | 2012 | Electron Device Letters IEEE2012，33，4： | 1 |
| 15 | Microvascular angina pectoris in hypertensive patients with left ventricular hypertrophy and diagnostic value of exercise thallium-201 scintigraphy显示文摘 | Iriarte M Caso R Murga N | 1995 | Am J Cardiol1995，75，5： | 1 |
| 16 | Classification of hypertension Cardiomyopathy显示文摘 | Iriarte M Marga N Sagastagoitia D et ol | 2001 | Eur Heart J2001，14，： | 1 |
| 17 | Chronic diffuse sclerosing osteomyelitis of the mandible or mandibular location of SAPHO syndrome显示文摘 | GARCIA - MARIN F IRIARTE - ORTABE J I REYCHLER H | 1996 | Acta Stomatol Belg1996，93，2： | 1 |
| 18 | Optimi- zation of AIN thin layers on diamond substrates for high frequency SAW resonators显示文摘 | Rodriguez-Madrid J G Iriarte G F Araujo D | 2012 | Materials Letters2012，66，1： | 1 |
| 19 | Effects of diabetic cardiomyopathy on regional electrophysiologic characteristics of rat ventricle显示文摘 | Casis O Gallego M Iriarte M | 2000 | Diabetologia2000，43，1： | 1 |
| 20 | Synthesis of c-Axis Oriented AIN Thin Films on Different Substrates:A Review显示文摘 | Iriarte G F Rodriguez J G Calle F | 2010 | Materials Research Bulletin2010，45，9： | 1 |
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