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Investigation:

ND-04 (Fernandes / Wandelli)

LBA Dataset ID:

ND04_Poster_001

Originator(s):

1. Ackerman, Ilse Lieve
2. Duxbury, John
3. Feldpausch, Ted R.
4. Fernandes, Erick C.M.
5. Garcia, Silas
6. Kuczak, Christienne N.
7. Luizao, Flavio de Jesus
8. Luizao, Regina Celi Costa
      9. McCaffery, Karen Anne
10. Riha, Susan J.
11. Rondon, Marco Antonio
12. Silva, Neliton Marques da
13. Vaughan, Kim
14. Wandelli, Elisa Vieira
15. Welch, Steven A.
16. Lehmann, Dr. Johannes

Point(s) of Contact:

Fernandes, Erick C.M. (ecf3@cornell.edu)

Dataset Abstract:

Earthworms, termites and leaf cutter ants of the macrofauna group that are the more readily accessible and potentially manageable \'ecosystem engineers\'. Earthworms and termites not only ingest large amounts of litter and soil, but also actively move around in soil and thereby play a major regulatory role in the dynamics of litter, SOM and soil nutrients. Leaf cutter ants have been shown to decrease deep soil resistance to penetration and in increase deep soil fertility (Moutinho, 1998; Brener & Silva, 1995). Several authors have stressed the need for research on the role of soil macrofauna in restoring land productivity (Urbanek, 1989; Abbott, 1989; Lavelle, 1994). We are measuring the impact of previous land use, mulching, and biomass removals on the dynamics of earthworms, termites and leaf cutter ants and their impacts on C and nutrients in abandoned pastures and 9-year-old agroforestry systems established on abandoned pasture land. Where forest is converted to pasture, the initial increase in dead standing wood appears to be responsible for population explosions of mound-building termites. Paradoxically, while termites have an important role in cycling the dead woody material, their mounds in pastures appear to resist vegetation establishment thereby limiting aboveground biomass accumulation.

Beginning Date:

1994-01-01

Ending Date:

2000-12-31

Metadata Last Updated on:

2001-11-20

Data Status:

Not Applicable

Access Constraints:

Public

Data Center URL:

http://lba.cptec.inpe.br/lba/indexi.html

Distribution Contact(s):

Luiz Horta, lbadis@cptec.inpe.br

Access Instructions:

Public

Data Access:

IMPORTANT: The LBA-ECO Project website is no longer being supported. Links to external websites may be inactive. Final data products from the LBA project can be found at the ORNL DAAC. Please follow the fair use guidelines found in the dataset documentation when using or citing LBA data.
Poster(s):

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Keywords - Theme:

Parameter Topic Term Source Sensor
SOIL FERTILITY AGRICULTURE SOILS    

Uncontrolled Theme Keyword(s):  Abandoned pasture, Amazon, Asteraceae, Biomass equations, Brachiaria, Brazil, C stocks, Carbon sequestration, Earthworm, Fabaceae, Forest, Hedley fractionation, LAI, Leafcutter, Manaus, Melastomataceae, Methane fluxes, Oxisol, PC Raster, Piperaceae, Poaceae, Roots, Soil macrofauna, Termite, Vegetation dynamics model, Vismia

Keywords - Place (with associated coordinates):

Region
(click to view profile)
Site
(click to view profile)
North South East West
Amazonas (Manaus) EMBRAPA DAS Experiment - km 54 (CPAA) -2.51800 -2.51800 -60.03000 -60.03000

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