Biome-Scale Forest Properties in Amazonia Based on Field and Satellite Observations
Amazonian forests are extremely heterogeneous at different spatial scales. This review intends to present the large-scale patterns of the ecosystem properties of Amazonia, and focuses on two parts of the main components of the net primary production: the long-lived carbon pools (wood) and short-live...
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| Format: | Article |
| Language: | English |
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MDPI AG
2012-05-01
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| Series: | Remote Sensing |
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| Online Access: | http://www.mdpi.com/2072-4292/4/5/1245 |
| _version_ | 1828142929955258368 |
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| author | Liana O. Anderson |
| author_facet | Liana O. Anderson |
| author_sort | Liana O. Anderson |
| collection | DOAJ |
| description | Amazonian forests are extremely heterogeneous at different spatial scales. This review intends to present the large-scale patterns of the ecosystem properties of Amazonia, and focuses on two parts of the main components of the net primary production: the long-lived carbon pools (wood) and short-lived pools (leaves). First, the focus is on forest biophysical properties, and secondly, on the macro-scale leaf phenological patterns of these forests, looking at field measurements and bringing into discussion the recent findings derived from remote sensing dataset. Finally, I discuss the results of the three major droughts that hit Amazonia in the last 15 years. The panorama that emerges from this review suggests that slow growing forests in central and eastern Amazonia, where soils are poorer, have significantly higher above ground biomass and higher wood density, trees are higher and present lower proportions of large-leaved species than stands in northwest and southwest Amazonia. However, the opposite pattern is observed in relation to forest productivity and dynamism, which is higher in western Amazonia than in central and eastern forests. The spatial patterns on leaf phenology across Amazonia are less marked. Field data from different forest formations showed that new leaf production can be unrelated to climate seasonality, timed with radiation, timed with rainfall and/or river levels. Oppositely, satellite images exhibited a large-scale synchronized peak in new leaf production during the dry season. Satellite data and field measurements bring contrasting results for the 2005 drought. Discussions on data processing and filtering, aerosols effects and a combined analysis with field and satellite images are presented. It is suggested that to improve the understanding of the large-scale patterns on Amazonian forests, integrative analyses that combine new technologies in remote sensing and long-term field ecological data are imperative. |
| first_indexed | 2024-04-11T19:49:52Z |
| format | Article |
| id | doaj.art-04a91aa49d0e42aa88bf49f012cd6717 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-04-11T19:49:52Z |
| publishDate | 2012-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-04a91aa49d0e42aa88bf49f012cd67172022-12-22T04:06:20ZengMDPI AGRemote Sensing2072-42922012-05-01451245127110.3390/rs4051245Biome-Scale Forest Properties in Amazonia Based on Field and Satellite ObservationsLiana O. AndersonAmazonian forests are extremely heterogeneous at different spatial scales. This review intends to present the large-scale patterns of the ecosystem properties of Amazonia, and focuses on two parts of the main components of the net primary production: the long-lived carbon pools (wood) and short-lived pools (leaves). First, the focus is on forest biophysical properties, and secondly, on the macro-scale leaf phenological patterns of these forests, looking at field measurements and bringing into discussion the recent findings derived from remote sensing dataset. Finally, I discuss the results of the three major droughts that hit Amazonia in the last 15 years. The panorama that emerges from this review suggests that slow growing forests in central and eastern Amazonia, where soils are poorer, have significantly higher above ground biomass and higher wood density, trees are higher and present lower proportions of large-leaved species than stands in northwest and southwest Amazonia. However, the opposite pattern is observed in relation to forest productivity and dynamism, which is higher in western Amazonia than in central and eastern forests. The spatial patterns on leaf phenology across Amazonia are less marked. Field data from different forest formations showed that new leaf production can be unrelated to climate seasonality, timed with radiation, timed with rainfall and/or river levels. Oppositely, satellite images exhibited a large-scale synchronized peak in new leaf production during the dry season. Satellite data and field measurements bring contrasting results for the 2005 drought. Discussions on data processing and filtering, aerosols effects and a combined analysis with field and satellite images are presented. It is suggested that to improve the understanding of the large-scale patterns on Amazonian forests, integrative analyses that combine new technologies in remote sensing and long-term field ecological data are imperative.http://www.mdpi.com/2072-4292/4/5/1245Amazoniaabove ground biomassfiredroughtfield dataforest productivitymonitoringnet primary productionrain forestsatellite datawood densityremote sensingMODIS |
| spellingShingle | Liana O. Anderson Biome-Scale Forest Properties in Amazonia Based on Field and Satellite Observations Remote Sensing Amazonia above ground biomass fire drought field data forest productivity monitoring net primary production rain forest satellite data wood density remote sensing MODIS |
| title | Biome-Scale Forest Properties in Amazonia Based on Field and Satellite Observations |
| title_full | Biome-Scale Forest Properties in Amazonia Based on Field and Satellite Observations |
| title_fullStr | Biome-Scale Forest Properties in Amazonia Based on Field and Satellite Observations |
| title_full_unstemmed | Biome-Scale Forest Properties in Amazonia Based on Field and Satellite Observations |
| title_short | Biome-Scale Forest Properties in Amazonia Based on Field and Satellite Observations |
| title_sort | biome scale forest properties in amazonia based on field and satellite observations |
| topic | Amazonia above ground biomass fire drought field data forest productivity monitoring net primary production rain forest satellite data wood density remote sensing MODIS |
| url | http://www.mdpi.com/2072-4292/4/5/1245 |
| work_keys_str_mv | AT lianaoanderson biomescaleforestpropertiesinamazoniabasedonfieldandsatelliteobservations |