Chapter 5 The Biosphere: The Carbon Cycle of Terrestrial Ecosystems

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Chapter 5 The Biosphere: The Carbon Cycle of Terrestrial Ecosystems Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. FIGURE 5.1 Molecular structure of the light-harvesting complex of photosystem II, showing the position of the Mg-porphyrin groups, shown with black dots. Source: From Kuhlbrandt et al. (1994). Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. FIGURE 5.2 Relationship between the content of 13C in plant tissues (expressed as δ13C) and stomatal conductance for a variety of plant species in western Nevada. Source: Modified from DeLucia et al. (1988). Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. FIGURE 5.3 Relationship between net photosynthesis and leaf nitrogen content among 21 species from different environments. Source: From Field and Mooney (1986). Used with permission of Cambridge University Press. Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. FIGURE 5.4 Root respiration as a function of nitrogen content (%) in roots of loblolly and ponderosa pine. Source: From Griffin et al. (1997). Used with permission of Springer. Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. FIGURE 5.5 Relationship between net primary production (NPP) and gross primary production (GPP) in different forest types. Source: From DeLucia et al. (2007). Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. FIGURE 5.6 Using data from a variety of ecosystems in North America, Webb et al. (1983) found a strong relation between the annual aboveground NPP and leaf biomass. Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. FIGURE 5.7 An eddy-covariance (flux) tower in a deciduous forest in North Carolina. Photo courtesy of G. Katul, Duke University. Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. FIGURE 5.8 Monthly gross primary production and evaporation in various temperate deciduous forests, measured by eddy-covariance techniques. The slope of the line is an estimate of water-use efficiency, here equivalent to 1.4 mmol/mol (see Eq. 5.3). Source: From Law et al. (2002). Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. FIGURE 5.9 A portion of the solar spectrum showing the typical reflectance from soil (-) and leaf (---) surfaces and the portions of the spectrum that are measured by the LANDSAT satellite. Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. FIGURE 5.10 The ratio of light reflected in the near-infrared and red spectral bands (wavebands TM4 and TM3 of the LANDSAT satellite; see Figure 5.9) is related to LAI for forest stands in the northwestern United States. Source: From Peterson et al. (1987). Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. FIGURE 5.11 The reflected microwave radiation (backscattering coefficient) measured by an airborne SAR for stands of young loblolly pine (Pinus taeda) in central North Carolina. Source: Modified from Kasischke et al. (1994). Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. FIGURE 5.12 Distribution of global NPP on land for 2002, computed from MODIS data. Source: From Running et al. 2004, Figure 5 in BioScience, June 2004; used with permission. Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. FIGURE 5.13 NPP in world forests versus mean annual temperature. Soruce: From Schuur (2003). Used with permission of the Ecological Society of America. Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. FIGURE 5.14 NPP in world forests versus mean annual precipitation. Source: From Schuur (2003). Used with the permission of the Ecological Society of America. Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. FIGURE 5.15 The Free-Air CO2 Enrichment experiment in Duke Forest in central North Carolina. Each plot is 30 m in diameter and surrounded by 16 towers, which emit CO2 so as to maintain a specified concentration in the cylindrical volume of the plot to the height of the forest canopy. All other factors, including soil fertility, are allowed to vary naturally in the control and experimental plots. Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. FIGURE 5.16 Change in terrestrial NPP from 2000 to 2009 from MODIS. Source: From Zhao and Running 2010. Used with permission of the American Association for the Advancement of Science. Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. FIGURE 5.17 Rates of decomposition of fresh litter in the United States predicted by a stimulation model using actual evapotranspiration as a predictive variable. Isopleth values are the fractional loss rate (k) of mass from fresh litter during the first year of decomposition. Source: From Meentemeyer (1978a.) Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. FIGURE 5.18 Fractionation of fulvic and humic acid components from soil organic matter. Source: From Stevenson (1986). Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. FIGURE 5.19 Turnover of detritus and soil organic fractions in a grassland soil, in units of kgC m- 2 yr- 1. Note that mean residence time can be calculated for each fraction from measurements of the quantity in the soil and the annual production or loss (respiration) from that fraction. Source: From Schlesinger (1977). Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. FIGURE 5.20 Latitudinal trends for carbon dynamics in forest and woodland soils of the world. The dashed line shows the mean annual input of organic carbon to the soil by litterfall. The solid line shows the loss of carbon, measured as the flux CO2 from the surface. The difference between these lines represents the loss of CO2 from root and mycorrhizae respiration and from the decomposition of root detritus and exudates. Source: From Schelesinger (1977). Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. FIGURE 5.21 The rate of accumulation of organic matter in soil chronosequences of different age and climate zones, all derived from volcanic materials. Source: From Zehetner (2010). Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. FIGURE 5.22 Decline in soil organic matter following conversation of native soil to agriculture in two grassland soils. Source: From Schlesinger (1986). Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. TABLE 5.1 Net Primary Production in 23- and 180-yr-old Abies amabilis Forests in the Cascade Mountains in Washington Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. TABLE 5.2 GPP, NPP, and NEP for Some Young Temperate and Boreal Forest Ecosystems Measured by H and CV Methods Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. TABLE 5.3 Biomass and Net Primary Production in Terrestrial Ecosystems Copyright © 2013 Elsevier Inc. All rights reserved.

Copyright © 2013 Elsevier Inc. All rights reserved. TABLE 5.4 Distribution of Soil Organic Matter by Ecosystem Types Copyright © 2013 Elsevier Inc. All rights reserved.