| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | mtc-m16b.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 6qtX3pFwXQZ3r59YD9/FLJMT |
| Repository | sid.inpe.br/iris@1915/2005/04.15.19.19 (restricted access) |
| Last Update | 2005:04.15.03.00.00 (UTC) administrator |
| Metadata Repository | sid.inpe.br/iris@1915/2005/04.15.19.20.01 |
| Metadata Last Update | 2022:04.15.22.40.28 (UTC) administrator |
| Secondary Key | INPE-9268-PRE/4937 |
| ISSN | 0361-5995 |
| Citation Key | TomasellaHodnRoss:2000:PeFuEs |
| Title | Pedotransfer functions for the estimation of soil water retention in Brazilian soils  |
| Year | 2000 |
| Month | Jan./Feb. |
| Access Date | 2024, May 16 |
| Secondary Type | PRE PI |
| Number of Files | 1 |
| Size | 328 KiB |
| 2. Context | |
| Author | 1 Tomasella, Javier 2 Hodnett, Martin G. 3 Rossato, Luciana |
| Resume Identifier | 1 8JMKD3MGP5W/3C9JHE3 |
| Group | 1 DMA-INPE-MCT-BR |
| Affiliation | 1 CPTEC-INPE-Cachoeira Paulista-12630-000-SP-Brasil |
| e-Mail Address | atus@cptec.inpe.br |
| Journal | Soil Science Society of America Journal |
| Volume | 64 |
| Number | 1 |
| Pages | 327-338 |
| History (UTC) | 2005-07-13 18:57:57 :: fabia -> administrator :: 2008-06-10 19:47:28 :: administrator -> estagiario :: 2010-05-11 16:55:55 :: estagiario -> marciana :: 2010-05-18 13:41:48 :: marciana -> administrator :: 2022-04-15 22:40:28 :: administrator -> marciana :: 2000 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Keywords | particle-size distribution bulk-density hydraulic-properties model texture carbon |
| Abstract | Various studies have shown that micro-aggregated, strongly weathered tropical soils have different water retention properties than temperate-region soils because of differences in mineralogy and weathering history. Hence, pedotransfer functions (PTFs), derived from data from temperate-region soils (temperate PTFs)have limitations when applied to tropical soils. In the absence of PTFs specifically for tropical soils, temperate PTFs are being applied worldwide in global climate modeling exercises, regardless of their textural validity. We derived a PTF to predict the water retention parameters of the van Genuchten (1980)equation using data from more than 500 Brazilian soil horizons. A modified approach was adopted: Multiple regression was used to derive coefficients that relate the van Genuchten parameters to basic soil data, followed by re-optimization of those coefficients by fitting the individual water content estimations to the measured data simultaneously. Pedotransfer functions were developed for four levels of vailability of basic soils data and validated using independent data from 113 Brazilian soil horizons. Water retention curves were better predicted by the new PTFs than by two temperate PTFs tested: The root mean square deviation (RMSD)ranged from 3.78 to 5.84, compared with 9.08 and 10.44, respectively. The new PTFs performed better even when the comparison was restricted to the range of textural validity of the temperate PTFs. For the proposed PTF, RMSDs increased with increasing silt content, but decreased for the temperate PTFs, This reflects the differences in silt content between temperate and strongly weathered tropical soils. |
| Area | MET |
| Arrangement | urlib.net > BDMCI > Fonds > Produção até 2016 > DMA > Pedotransfer functions for... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| Language | en |
| Target File | Tomasella_Pedotransfer functions for the estimation.pdf |
| User Group | administrator fabia marciana |
| Reader Group | administrator |
| Visibility | shown |
| Copy Holder | SID/SCD |
| Archiving Policy | denypublisher denyfinaldraft |
| Read Permission | deny from all and allow from 150.163 |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/46JKC45 |
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.50.34 1 |
| Dissemination | WEBSCI |
| Host Collection | cptec.inpe.br/walmeida/2003/04.25.17.12 |
| 6. Notes | |
| Empty Fields | alternatejournal archivist callnumber copyright creatorhistory descriptionlevel documentstage doi electronicmailaddress format isbn label lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarymark session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url versiontype |
| 7. Description control | |
| e-Mail (login) | marciana |
| update | |