Satellite‐derived increases in net primary productivity across North America, 1982–1998
Open Access
- 15 May 2002
- journal article
- Published by American Geophysical Union (AGU) in Geophysical Research Letters
- Vol. 29 (10) , 69-1-69-4
- https://doi.org/10.1029/2001gl013578
Abstract
We used a new 17‐year, high spatial resolution satellite record and a carbon cycle model to explore how changing net primary productivity (NPP) contributed to a proposed carbon (C) sink in North America. We found a small but significant increase in NPP, 0.03 Pg C yr−2 or 8% over 17 years, that could explain a substantial fraction of the C sink. The largest increases occurred in the central and southeastern United States, eastern Canada, and northwestern North America, and were consistent with NPP trends derived from forest inventories and crop yields. Interannual NPP variability was small, implying that the large interannual variability in the C sink found in previous studies were driven by changes in heterotrophic respiration.This publication has 22 references indexed in Scilit:
- Interannual variability of global terrestrial primary production: Results of a model driven with satellite observationsJournal of Geophysical Research: Atmospheres, 2000
- Inverse modeling of annual atmospheric CO2 sources and sinks: 2. Sensitivity studyJournal of Geophysical Research: Atmospheres, 1999
- The U.S. Carbon Budget: Contributions from Land-Use ChangeScience, 1999
- Interannual Variability in Terrestrial Net Primary Production: Exploration of Trends and Controls on Regional to Global ScalesEcosystems, 1999
- Aboveground biomass distribution of US eastern hardwood forests and the use of large trees as an indicator of forest developmentPublished by Elsevier ,1998
- Interannual variation in global‐scale net primary production: Testing model estimatesGlobal Biogeochemical Cycles, 1997
- Increased plant growth in the northern high latitudes from 1981 to 1991Nature, 1997
- Change in net primary production and heterotrophic respiration: How much is necessary to sustain the terrestrial carbon sink?Global Biogeochemical Cycles, 1996
- Aboveground net primary production decline with stand age: potential causesTrends in Ecology & Evolution, 1996
- Terrestrial ecosystem production: A process model based on global satellite and surface dataGlobal Biogeochemical Cycles, 1993