Share This Author
Carbon and Other Biogeochemical Cycles
For base year 2010, anthropogenic activities created ~210 (190 to 230) TgN of reactive nitrogen Nr from N2. This human-caused creation of reactive nitrogen in 2010 is at least 2 times larger than the…
Global Consequences of Land Use
Global croplands, pastures, plantations, and urban areas have expanded in recent decades, accompanied by large increases in energy, water, and fertilizer consumption, along with considerable losses of biodiversity.
Global fire emissions and the contribution of deforestation, savanna, forest, agricultural, and peat fires (1997-2009)
Abstract. New burned area datasets and top-down constraints from atmospheric concentration measurements of pyrogenic gases have decreased the large uncertainty in fire emissions estimates. However,…
Global land cover classification at 1 km spatial resolution using a classification tree approach
This paper on reports the production of a 1 km spatial resolution land cover classification using data for 1992-1993 from the Advanced Very High Resolution Radiometer (AVHRR). This map will be…
Global Percent Tree Cover at a Spatial Resolution of 500 Meters: First Results of the MODIS Vegetation Continuous Fields Algorithm
- M. Hansen, R. DeFries, J. Townshend, M. Carroll, C. DiMiceli, R. Sohlberg
- Environmental Science, Mathematics
- 1 October 2003
Abstract The first results of the Moderate Resolution Imaging Spectroradiometer (MODIS) vegetation continuous field algorithm's global percent tree cover are presented. Percent tree cover per 500-m…
A global overview of the conservation status of tropical dry forests
Aim To analyse the conservation status of tropical dry forests at the global scale, by combining a newly developed global distribution map with spatial data describing different threats, and to…
Science for managing ecosystem services: Beyond the Millennium Ecosystem Assessment
- S. Carpenter, H. Mooney, A. Whyte
- Environmental ScienceProceedings of the National Academy of Sciences
- 3 February 2009
New research is needed that considers the full ensemble of processes and feedbacks, for a range of biophysical and social systems, to better understand and manage the dynamics of the relationship between humans and the ecosystems on which they rely.
The Moderate Resolution Imaging Spectroradiometer (MODIS): land remote sensing for global change research
- C. Justice, E. Vermote, M. Barnsley
- Environmental Science, MathematicsIEEE Transactions on Geoscience and Remote…
- 1 July 1998
The proposed MODIS standard products for land applications are described along with the current plans for data quality assessment and product validation.
Carbon emissions from land use and land-cover change
Abstract. The net flux of carbon from land use and land-cover change (LULCC) accounted for 12.5% of anthropogenic carbon emissions from 1990 to 2010. This net flux is the most uncertain term in the…
Carbon emissions from tropical deforestation and regrowth based on satellite observations for the 1980s and 1990s
- R. DeFries, R. Houghton, M. Hansen, C. Field, D. Skole, J. Townshend
- Environmental ScienceProceedings of the National Academy of Sciences…
- 16 October 2002
The results indicate that the net rate of tropical forest clearing increased ≈10% from the 1980s to 1990s, most notably in southeast Asia, in contrast to an 11% reduction reported by the FRA.