| 1. Identity statement | |
| Reference Type | Conference Paper (Conference Proceedings) |
| Site | mtc-m12.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 6qtX3pFwXQZ3r59YD6/GPAyC |
| Repository | sid.inpe.br/iris@1912/2005/07.21.00.44.36 |
| Last Update | 2020:11.23.14.25.47 (UTC) marciana |
| Metadata Repository | sid.inpe.br/iris@1912/2005/07.21.00.44.40 |
| Metadata Last Update | 2020:11.23.14.25.47 (UTC) marciana |
| Secondary Key | INPE-9478-PRE/5133 |
| Label | 10323 |
| Citation Key | AragãoWill:2002:LeArIn |
| Title | Leaf area index measurements at Caxianão forest and at Bragança mangrove in Pará State  |
| Year | 2002 |
| Access Date | 2024, Apr. 26 |
| Secondary Type | PRE CI |
| Number of Files | 1 |
| Size | 203 KiB |
| 2. Context | |
| Author | 1 Aragão, Luiz Eduardo 2 Williams, Mathew |
| Group | 1 DSR-INPE-MCT-BR |
| Conference Name | International LBA Scientific Conference, 2. |
| Conference Location | Manaus, BR |
| Date | 7-10 July 2002 |
| Organization | LBA Central Office (CPTEC/INPE) LBA Regional Office in Manaus (INPA) |
| History (UTC) | 2005-07-21 00:44:41 :: administrator -> jefferson :: 2006-05-10 13:55:46 :: jefferson -> administrator :: 2008-06-09 22:15:32 :: administrator -> jefferson :: 2010-07-07 19:06:06 :: jefferson -> administrator :: 2018-06-05 00:40:25 :: administrator -> marciana :: 2002 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Version Type | publisher |
| Keywords | ESTUDOS INTEGRADOS DO MEIO AMBIENTE Floresta Caxiuanã (PA) Amazônia (Região) carbon budgets |
| Abstract | Leaf area index (LAI)is a major control on land surface exchange rates of energy and carbon. Field measurement of LAI is critical both for parametrizing models for scaling up leaf gas exchange to the canopy level and for use in calibrating remote sensing information on canopy structure. In this study, we characterized LAI in three sites in the primary rain forest of Caxiuanã National Forest, and at a mangrove forest on the coast near Bragança, Pará State. The data collection occurred during a field campaign in November 2001. We collected data with a pair of LAI-2000 canopy analyzers (LI-COR). In Caxiuanã forest, we sa grid. obtained the vertical distribution of LAI for each Caxiuanã forest site by recording LAI at successive levels on canopy access towers. In the mangrove forest, we collected forty samples at 5 m spacing near the eddy flux tower. Results from Caxiuanã showed that mean LAI was varied linearly from 4.64 at 2 m to 2.57 at 30 m height. There was a similar pattern at the Esecaflor plot, which varied from 4.58 at 2 m to 2.01 at 30 m. The tower site had higher LAI values than the first two plots, with a LAI average of 5.70. The LAI profile at the tower site varied non-linearly, from 5.57 at 2 m to 1.1 at 30 m height. Compared to the rain forest, the mangrove site had low LAI values (2.73), reflecting the lower density of trees, and also the occurrence of tide channels. The two experimental plots at Caxiuanã forest have similar patterns of horizontal and vertical LAI distribution and these patterns seem to be different from tower site. The mangrove forest site had distinctly different characteristics from the rain forest, reflected in low LAI values. With these data, we can now examine how differences in C and energy exchange in mangrove and rain forest, as recorded by eddy covariance, are related to differences in canopy structure. |
| Area | SRE |
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSR > Leaf area index... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| data URL | http://urlib.net/ibi/6qtX3pFwXQZ3r59YD6/GPAyC |
| zipped data URL | http://urlib.net/zip/6qtX3pFwXQZ3r59YD6/GPAyC |
| Language | en |
| Target File | aragao_leaf.pdf |
| User Group | administrator jefferson administrator |
| Visibility | shown |
| Copy Holder | SID/SCD |
| Update Permission | not transferred |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/3ER446E |
| Dissemination | <E> |
| Host Collection | sid.inpe.br/banon/2001/04.06.10.52 |
| 6. Notes | |
| Empty Fields | affiliation archivingpolicy archivist booktitle callnumber copyright creatorhistory descriptionlevel doi e-mailaddress edition editor electronicmailaddress format isbn issn lineage mark mirrorrepository nextedition notes numberofvolumes orcid pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readergroup readpermission resumeid rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject tertiarymark tertiarytype type url volume |
| 7. Description control | |
| e-Mail (login) | marciana |
| update | |