Scaling the relationship between GPP and NIRV from FLUXNET eddy covariance sites, we estimate global annual terrestrial photosynthesis to be 147 Pg C y-1 (95% credible interval 131-163 Pg C y-1 ), which falls between bottom-up GPP estimates and the top-down global constraint on GPP from oxygen isotopes. This result emphasizes the critical role that species composition plays in mediating nutrient and carbon cycling within and among different communities. A., Field, C. B.THE DEPENDENCE OF PLANT-ROOT - SHOOT RATIOS ON INTERNAL NITROGEN CONCENTRATIONRELATIONSHIPS AMONG LEAF CONSTRUCTION COST, LEAF LONGEVITY, AND LIGHT ENVIRONMENT IN RAIN-FOREST PLANTS OF THE GENUS PIPERINTERACTIONS BETWEEN CROWN STRUCTURE AND LIGHT ENVIRONMENT IN 5 RAIN-FOREST PIPER SPECIESPHOTOGRAPHIC ESTIMATION OF PHOTOSYNTHETICALLY ACTIVE RADIATION - EVALUATION OF A COMPUTERIZED TECHNIQUEDETERMINANTS OF PHOTOSYNTHETIC CAPACITY IN 6 RAIN-FOREST PIPER SPECIESLEAF CARBON ISOTOPE RATIOS OF PLANTS FROM A SUBTROPICAL MONSOON FORESTEhleringer, J. R., Lin, Z. F., Field, C. B., Sun, G. C., Kuo, C. Y.Chapin, F. S., Bloom, A. J., Field, C. B., Waring, R. H.LEAF CARBON ISOTOPE AND MINERAL-COMPOSITION IN SUBTROPICAL PLANTS ALONG AN IRRADIANCE CLINEEhleringer, J. R., Field, C. B., Lin, Z. F., Kuo, C. Y.CONSTRUCTION AND MAINTENANCE COSTS OF MEDITERRANEAN-CLIMATE EVERGREEN AND DECIDUOUS LEAVES .2.
Lower transpirational water losses resulting from this earlier senescence provide a mechanism for the unexpected rise in soil moisture. Here we consider plant trait patterns at the local scale and ask whether plant chemical traits are more closely linked to environmental gradients or to changes in species composition. Furthermore, this hydraulic damage predicts the probability of interyear stem mortality. A question remains as to why symbiotic N(2)-fixing plants are more abundant in vast areas of the tropics than in many of the mature forests that seem to be nitrogen-limited in the temperate and boreal zones. These results indicate that a functional trade-off between aboveground and belowground allocation is essentially captured by variations in G, which itself is largely governed by stand biomass and only secondarily by site-specific resource availability. Our results suggest that a decade later the measured indicators show similar or only slightly stronger responses.
These conditions could constrain the near-term technical deployment potential of BECCS due to social and economic barriers that exist for biomass and CO2transport. A., Bjorkman, O.ENVIRONMENTAL CONTROLS ON STOMATAL CONDUCTANCE IN A SHRUB OF THE HUMID TROPICSPHOTOSYNTHETIC CHARACTERISTIC OF SOUTH-AFRICAN SCLEROPHYLLSMooney, H. A., Field, C., GULMON, S. L., Rundel, P., Kruger, F. J.COMPROMISES BETWEEN WATER-USE EFFICIENCY AND NITROGEN-USE EFFICIENCY IN 5 SPECIES OF CALIFORNIA EVERGREENSPHOTOCONTROL OF THE FUNCTIONAL COUPLING BETWEEN PHOTOSYNTHESIS AND STOMATAL CONDUCTANCE IN THE INTACT LEAF - BLUE-LIGHT AND PAR-DEPENDENT PHOTOSYSTEMS IN GUARD-CELLSDeterminants of leaf temperature in California Mimulus species at different altitudes.CONSTRUCTION AND MAINTENANCE COSTS OF MEDITERRANEAN-CLIMATE EVERGREEN AND DECIDUOUS LEAVES .1. A., Bonan, G. B., Collatz, G. J., Field, C. B., Fung, I. Y., Goulden, M., Hoffmann, W. A., Jackson, R. B., Myneni, R., Sellers, P. J., Shaikh, M.Recent patterns and mechanisms of carbon exchange by terrestrial ecosystemsSchimel, D. S., House, J. I., Hibbard, K. A., Bousquet, P., Ciais, P., Peylin, P., Braswell, B. H., Apps, M. J., Baker, D., Bondeau, A., Canadell, J., Churkina, G., Cramer, W., Denning, A. S., Field, C. B., Friedlingstein, P., Goodale, C., Heimann, M., Houghton, R. A., Melillo, J. M., Moore, B., Murdiyarso, D., Noble, I., Pacala, S. W., Prentice, I. C., Raupach, M. R., Rayner, P. J., Scholes, R. J., Steffen, W. L., Wirth, C.Consistent land- and atmosphere-based US carbon sink estimatesPacala, S. W., Hurtt, G. C., Baker, D., Peylin, P., Houghton, R. A., Birdsey, R. A., Heath, L., Sundquist, E. T., Stallard, R. F., Ciais, P., Moorcroft, P., Caspersen, J. P., Shevliakova, E., Moore, B., Kohlmaier, G., Holland, E., Gloor, M., Harmon, M. E., Fan, S. M., SARMIENTO, J. L., Goodale, C. L., Schimel, D., Field, C. B.Resource optimization and symbiotic nitrogen fixationRastetter, E. B., Vitousek, P. M., Field, C., Shaver, G. R., Herbert, D., AGREN, G. I.Contrasting effects of elevated CO2 on old and new soil carbon pools (vol 33, pg 365, 2001)Cardon, Z. G., Hungate, B. This index represents the instantaneous local velocity along Earth's surface needed to maintain constant temperatures, and has a global mean of 0.42 km yr(-1) (A1B emission scenario). Among approaches for predicting ecosystem responses, long-term observations and manipulative experiments can be powerful approaches for resolving single-factor and interactive effects of global changes on key metrics such as net primary production (NPP). We found that the temperature of maximum DLE upon chilling was strongly correlated with lateral phase separation temperatures, but was on average approximately 4 degrees C lower. The rate of warming implies a velocity of climate change and required range shifts of up to several kilometers per year, raising the prospect of daunting challenges for ecosystems, especially in the context of extensive land use and degradation, changes in frequency and severity of extreme events, and interactions with other stresses.Understanding how and why plant communities vary across space has long been a goal of ecology, yet parsing the relative importance of different influences has remained a challenge. Large protected areas may mitigate the problem in desert biomes. Most studies classify tree species into categories based on their regeneration requirements. We used the visible-to-shortwave infrared (VSWIR) spectrometer of the Carnegie Airborne Observatory to develop maps of four plant chemical traits-leaf nitrogen per mass, leaf carbon per mass, leaf water concentration, and canopy water content-across a diverse Mediterranean-type ecosystem (Jasper Ridge Biological Preserve, CA). The spatial and temporal distributions of ocean NPP are consistent with primary limitation by light, nutrients, and temperature.