Anthropic impacts on the tropical forest of central Amazon - Brazil

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Basic Information
Site Name
Anthropic impacts on the tropical forest of central Amazon
Short name
IAFA
Country
Brazil
Site Manager
Flávia Costa
Funding Agency
National Council for Scientific and Technological Development (CNPq)
Site Description
The LTER IAFA site has been running since 1999 and was the first long-term ecological research site in the Amazon. It is situated north of Manaus, central Amazon and includes three sub-sites, with undisturbed terra-firme forest (Reserva Ducke), selective logging (ZF-2 Forest Management Station), and forest fragmentation (Biological Dynamics of forest fragments – BDFFP sites) spread over around 30 x 30 km landscape. Both logging and fragmentation were carried out as controlled experiments to test their effects on biodiversity and ecosystem processes, and thus to outline recommendations for management. The 3 research areas together have 156 permanent monitoring plots, both terrestrial and aquatic, as well as grids of trails for large-scale process monitoring. The information produced has been stored on a public website (https://ppbio.inpa.gov.br/repositorio/dados) where anyone can search data and metadata about the research, as well as the list of publications and all the educational material ( books, identification guides, training course materials) for download.
Last modified
2020-06-29 10:38:55

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General Characteristics and Status
Site Status
Operational
Year Established
1999
Observed properties
Photos
Distribution of sub-sites of the IAFA LTER site
Distribution of sub-sites of the IAFA LTER site
Geographic
View in site map
Centroid/Representative Coordinates

Latitude: 2.69 Longitude: -59.85

Size
ca. 90000.00ha
Elevation (average)
80.00msl
Elevation (min)
35.00msl
Elevation (max)
140.00msl
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Site information [.json]

Centroid/representative coordinates [.shp] [.kml] [.geojson]
GEO-BON Biome
Terrestrial
Biome
Rainforest
Ecosystem Type
Forest
Rainforest
EUNIS habitat
Woodland, forest and other wooded land (G)
Air Temperature: Average Annual
26.00°C
Precipitation Annual
2543.00mm
Geology
The site is located over the Alter-do-Chão geological formation, of Cretaceous age.
Vegetation
Forest is classified as dense tropical moist forest, around 32 m tall, with emergent trees up to 55 m. Tree diversity is very high, with 1200 sp document in one of the sub-sites for which there is a near complete flora, but the total number may reach 2000 tree sp over the 3 sub-sites.
Soils
Soils are generally poor in nutrients (mostly less than 1 cmol.kg of exchangeable cations). Plateaus have clayey latossols and valleys sandy podzols, slopes have soils in between.
Hydrology
The hydrology if formed by a dense network of streams mostly from first to forth orders, dissecting the terrains and forming a complex undulating topography of plateaus incised by valleys. Valleys are permanently ot seasonally waterlogged, and stream flooding is irregular and of short duration (maximum of hours).
Site Type
Stationary land-based site
Design of Experimentation
partly experimentation
Scale of Experimentation
catchment scale
Design of Observation
partly observation
Scale of Observation
plot within catchment
Permanent Power Supply
Yes
Accessible All Year
Yes
All parts of Site Accessible
Yes
Access Type
dirt road (4WD)
Permanent Operation
Yes
General Data Policy
Co-authorship on publications resulting from use of the dataset
Data Policy Notes
Data or metadata is available to free download for visualization, teaching, and any uses that do not involve scientific use for publications. In this case, a formal request to authors is expected.
Data Policy URL
https://ppbio.inpa.gov.br/en/Data_Policy