%0 Journal Article %@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S} %@nexthigherunit 8JMKD3MGPCW/3F3T29H %@nexthigherunit 8JMKD3MGPCW/43SQKNE %@resumeid %@resumeid 8JMKD3MGP5W/3C9JHE3 %X It is well known that land use and land-cover changes (LUCC), particularly deforestation, have the potential to modify the hydrological response. Although those signals are relatively well documented in worldwide microcatchment studies, conflicting results reported in literature indicate that those signals can be sometimes difficult to detect and isolate in basins at larger scales. In order to detect signals in the hydrological response potentially, related to LUCC, streamflow records from Ji-Paran´a Basin located in SW Amazonia are analysed in conjunction with deforestation maps derived from remote sensors. The basin has a drainage area greater than 30 000 km2 and has been through severe LUCC in the last decades. Statistical descriptors of daily streamflow series were correlated with landscape indices using non-parametric methodologies. To take into account scale effects, statistical analyses were repeated in different sub-basins. Results showed that the impact of LUCC on the hydrological response is time lagged at larger scales. The flow paths are clearly affected, depending on basin characteristics such as topography. In general, LUCC impacts lead to higher peak streamflows, the reduction of minimal values and the increment of stormflow. In agreement with previous studies, the detection of signals associated with LUCC was clearly detected at the smallest basin, but proved to be difficult at larger scales, suggesting the existence of non-linear effects, which aggregate across scale compensating small scale effects. Such behaviour indicates a challenge for mathematical models, which are usually developed to represent immediate hydrological response to basin wide LUCC. Copyright  2010 John Wiley & Sons, Ltd. %@mirrorrepository sid.inpe.br/mtc-m19@80/2009/08.21.17.02.53 %8 nov. %N 10 %T Is the forest conversion to pasture affecting the hydrological response of Amazonian catchments? Signals in the Ji-Paraná basin %@secondarytype PRE PI %K hydrology, land use, land cover changes, Amazonia. %@archivingpolicy denypublisher denyfinaldraft %@usergroup administrator %@usergroup deicy %@usergroup marciana %@group DOP-CPT-INPE-MCT-BR %@group CST-CST-INPE-MCT-BR %@group CST-CST-INPE-MCT-BR %@e-mailaddress deicy.farabello@cpec.inpe.br %3 Rodriguez DA, J Tomasella and C Linhares. 2010. Is the forest conversion to pasture affecting the hydrological response of Amazonian catchments; Signals in the Ji-Paraná Basin.pdf %@copyholder SID/SCD %@secondarykey INPE--PRE/ %@secondarymark A2_CIÊNCIAS_AGRÁRIAS A2_ECOLOGIA_E_MEIO_AMBIENTE A2_GEOCIÊNCIAS A2_GEOGRAFIA A1_INTERDISCIPLINAR %@issn 0885-6087 %2 sid.inpe.br/mtc-m19@80/2010/04.30.12.50.28 %@affiliation Instituto Nacional de Pesquisas Espaciais (INPE) %@affiliation Instituto Nacional de Pesquisas Espaciais (INPE) %@affiliation Instituto Nacional de Pesquisas Espaciais (INPE) %B Hydrological Processes %@versiontype publisher %P 1254-1269 %4 sid.inpe.br/mtc-m19@80/2010/04.30.12.50 %@documentstage not transferred %D 2010 %V 24 %@doi 10.1002/hyp.7586 %A Rodriguez, Daniel Andres, %A Tomasella, Javier, %A Linhares, Claudia, %@dissemination WEBSCI; PORTALCAPES; MGA; COMPENDEX. %@area MET