Goods and services provided by forests will be needed in greater amounts in the coming decades, yet are threatened by climate change and air pollution. In this chapter, we survey the peer-reviewed literature on elevated atmospheric CO2 (eCO2) and tropospheric O3 (eO3) interaction experiments, and discuss implications of results for policy development and social welfare. We located 58 studies reporting data on physiology, biomass production, litter quality and decomposition. Studies were abundant for young and intermediate ages, but non-existent for mature forests. Most plant parameters increased with exposure to eCO2, decreased under eO3 and were often intermediate for the eCO2×eO3 interaction, though this latter treatment was not always statistically significant. Current environmental policy could make better use of existing science, but more work, especially on mature forest ecosystems, is needed in step with process-model development to better predict forest responses and guide policy for future changes in air quality and climate.
This atlas is based on the lunar global Digital Elevation Models (DEM) of Chang'E-1 (CE-1), and presents CCD stereo image data with digital photogrammetry. The spatial resolution of the DEM in this atlas is 500m, with horizontal accuracy of 192m and vertical accuracy of 120m. Color-shaded relief maps with contour lines are used to show the lunar topographical characteristics. The topographical data gathered by CE-1 can provide fundamental information for the study of lunar topographical, morphological and geological structures, as well as for lunar evolution research.
This atlas is based on the lunar global Digital Elevation Models (DEM) of Chang'E-1 (CE-1), and presents CCD stereo image data with digital photogrammetry. The spatial resolution of the DEM in this atlas is 500m, with horizontal accuracy of 192m and vertical accuracy of 120m. Color-shaded relief maps with contour lines are used to show the lunar topographical characteristics. The topographical data gathered by CE-1 can provide fundamental information for the study of lunar topographical, morphological and geological structures, as well as for lunar evolution research.
Goods and services provided by forests will be needed in greater amounts in the coming decades, yet are threatened by climate change and air pollution. In this chapter, we survey the peer-reviewed literature on elevated atmospheric CO2 (eCO2) and tropospheric O3 (eO3) interaction experiments, and discuss implications of results for policy development and social welfare. We located 58 studies reporting data on physiology, biomass production, litter quality and decomposition. Studies were abundant for young and intermediate ages, but non-existent for mature forests. Most plant parameters increased with exposure to eCO2, decreased under eO3 and were often intermediate for the eCO2×eO3 interaction, though this latter treatment was not always statistically significant. Current environmental policy could make better use of existing science, but more work, especially on mature forest ecosystems, is needed in step with process-model development to better predict forest responses and guide policy for future changes in air quality and climate.
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