Search Results - "Janssens, I."

Global patterns of phosphatase activity in natural soils by Margalef, O., Sardans, J., Fernández-Martínez, M., Molowny-Horas, R., Janssens, I. A., Ciais, P., Goll, D., Richter, A., Obersteiner, M., Asensio, D., Peñuelas, J.

“…Soil phosphatase levels strongly control the biotic pathways of phosphorus (P), an essential element for life, which is often limiting in terrestrial…”
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Fertile forests produce biomass more efficiently by Vicca, S., Luyssaert, S., Peñuelas, J., Campioli, M., Chapin III, F. S., Ciais, P., Heinemeyer, A., Högberg, P., Kutsch, W. L., Law, B. E., Malhi, Y., Papale, D., Piao, S. L., Reichstein, M., Schulze, E. D., Janssens, I. A.

“…Ecology Letters (2012) Trees with sufficient nutrition are known to allocate carbon preferentially to aboveground plant parts. Our global study of 49 forests…”
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Reduction of forest soil respiration in response to nitrogen deposition by Janssens, I. A, Dieleman, W, Luyssaert, S, Subke, J-A, Reichstein, M, Ceulemans, R, Ciais, P, Dolman, A. J, Grace, J, Matteucci, G, Papale, D, Piao, S. L, Schulze, E-D, Tang, J, Law, B.E

“…The use of fossil fuels and fertilizers has increased the amount of biologically reactive nitrogen in the atmosphere over the past century. A meta-analysis…”
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Global trends in carbon sinks and their relationships with CO2 and temperature by Fernández-Martínez, M., Sardans, J., Chevallier, F., Ciais, P., Obersteiner, M., Vicca, S., Canadell, J. G., Bastos, A., Friedlingstein, P., Sitch, S., Piao, S. L., Janssens, I. A., Peñuelas, J.

“…Elevated CO 2 concentrations increase photosynthesis and, potentially, net ecosystem production (NEP), meaning a greater CO 2 uptake. Climate, nutrients and…”
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Evaluating the convergence between eddy-covariance and biometric methods for assessing carbon budgets of forests by Campioli, M., Malhi, Y., Vicca, S., Luyssaert, S., Papale, D., Peñuelas, J., Reichstein, M., Migliavacca, M., Arain, M. A., Janssens, I. A.

“…The eddy-covariance (EC) micro-meteorological technique and the ecology-based biometric methods (BM) are the primary methodologies to quantify CO 2 exchange…”
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Nutrient availability as the key regulator of global forest carbon balance by Fernández-Martínez, M., Vicca, S., Janssens, I. A., Sardans, J., Luyssaert, S., Campioli, M., Chapin III, F. S., Ciais, P., Malhi, Y., Obersteiner, M., Papale, D., Piao, S. L., Reichstein, M., Rodà, F., Peñuelas, J.

“…A synthesis of findings from 92 forests in different climate zones reveals that nutrient availability plays a crucial role in determining forest carbon…”
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Chemical characterisation of atmospheric aerosols during a 2007 summer field campaign at Brasschaat, Belgium: sources and source processes of biogenic secondary organic aerosol by Gómez-González, Y, Wang, W, Vermeylen, R, Chi, X, Neirynck, J, Janssens, I. A, Maenhaut, W, Claeys, M

“…Measurements of organic marker compounds and inorganic species were performed on PM2.5 aerosols from a Belgian forest site that is severely impacted by urban…”
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Sensitivity of decomposition rates of soil organic matter with respect to simultaneous changes in temperature and moisture by Sierra, Carlos A., Trumbore, Susan E., Davidson, Eric A., Vicca, Sara, Janssens, I.

“…The sensitivity of soil organic matter decomposition to global environmental change is a topic of prominent relevance for the global carbon cycle…”
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Temporal and among-site variability of inherent water use efficiency at the ecosystem level by Beer, C, Ciais, P, Reichstein, M, Baldocchi, D, Law, B.E, Papale, D, Soussana, J.F, Ammann, C, Buchmann, N, Frank, D, Gianelle, D, Janssens, I.A, Knohl, A, Köstner, B, Moors, E, Roupsard, O

“…Half‐hourly measurements of the net exchanges of carbon dioxide and water vapor between terrestrial ecosystems and the atmosphere provide estimates of gross…”
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Do successive climate extremes weaken the resistance of plant communities? An experimental study using plant assemblages by Dreesen, F. E, De Boeck, H. J, Janssens, I. A, Nijs, I

“…The probability that plant communities undergo successive climate extremes increases under climate change. Exposure to an extreme event might elicit…”
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Biomass production efficiency controlled by management in temperate and boreal ecosystems by Campioli, M., Vicca, S., Luyssaert, S., Bilcke, J., Ceschia, E., Chapin III, F. S., Ciais, P., Fernández-Martínez, M., Malhi, Y., Obersteiner, M., Olefeldt, D., Papale, D., Piao, S. L., Peñuelas, J., Sullivan, P. F., Wang, X., Zenone, T., Janssens, I. A.

“…Some of the energy from photosynthesis is used in production of biomass. An analysis of plant productivity measurements reveals that site management is the…”
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The contribution of nitrogen deposition to the photosynthetic capacity of forests by Fleischer, K., Rebel, K. T., van der Molen, M. K., Erisman, J. W., Wassen, M. J., van Loon, E. E., Montagnani, L., Gough, C. M., Herbst, M., Janssens, I. A., Gianelle, D., Dolman, A. J.

“…Global terrestrial carbon (C) sequestration has increased over the last few decades. The drivers of carbon sequestration, the geographical spread and magnitude…”
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Fine root biomass and turnover of two fast-growing poplar genotypes in a short-rotation coppice culture by Berhongaray, Gonzalo, Janssens, I. A, King, J. S, Ceulemans, R

“…BACKGROUND AND AIMS: The quantification of root dynamics remains a major challenge in ecological research because root sampling is laborious and prone to error…”
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Asymmetric sensitivity of first flowering date to warming and cooling in alpine plants by Wang, Y. F, Wang, S. P, Meng, F. D, Duan, J. C, Cui, X. Y, Cui, S. J, Piao, S. L, Niu, H. S, Xu, G. P, Luo, C. Y, Zhang, F. W, Zhang, Z. H, Zhu, X. X, Shen, M. G, Li, Y. N, Du, M. Y, Tang, Y. H, Zhao, L, Zhao, X. Q, Ciais, P, Kimball, B, Peñuelas, J, Janssens, I. A

“…Understanding how flowering phenology responds to warming and cooling (i.e., symmetric or asymmetric response) is needed to predict the response of flowering…”
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Fluxes of the greenhouse gases (CO2, CH4 and N2O) above a short-rotation poplar plantation after conversion from agricultural land by Zona, D., Janssens, I.A., Aubinet, M., Gioli, B., Vicca, S., Fichot, R., Ceulemans, R.

“…► Here we report CO2, CH4, and N2O fluxes measured using eddy covariance above a short-rotation bioenergy plantation. ► During the first six months the total…”
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Importance of methane and nitrous oxide for Europe's terrestrial greenhouse-gas balance by Schulze, E. D, Luyssaert, S, Ciais, P, Freibauer, A, Janssens, I. A

“…Carbon dioxide uptake by the terrestrial biosphere has the potential to mitigate fossil fuel emissions. Comprehensive estimates of Europe's greenhouse-gas…”
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Drivers of biogenic volatile organic compound emissions in hygrophytic bryophytes by Yáñez-Serrano, A.M., Corbera, J., Portillo-Estrada, M., Janssens, I.A., Llusià, J., Filella, I., Peñuelas, J., Preece, C., Sabater, F., Fernández-Martínez, M.

“…Bryophytes can both emit and take up biogenic volatile organic compounds (BVOCs) to and from the environment. Despite the scarce study of these exchanges,…”
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European carbon balance. Part 2: croplands by CIAIS, P, WATTENBACH, M, VUICHARD, N, SMITH, P, PIAO, S.L, DON, A, LUYSSAERT, S, JANSSENS, I.A, BONDEAU, A, DECHOW, R, LEIP, A, SMITH, PC, BEER, C, VAN DER WERF, G.R, GERVOIS, S, VAN OOST, K, TOMELLERI, E, FREIBAUER, A, SCHULZE, E.D

“…We estimated the long-term carbon balance [net biome production (NBP)] of European (EU-25) croplands and its component fluxes, over the last two decades. Net…”
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European carbon balance. Part 4: integration of carbon and other trace-gas fluxes by SCHULZE, E.D, CIAIS, P, LUYSSAERT, S, SCHRUMPF, M, JANSSENS, I.A, THIRUCHITTAMPALAM, B, THELOKE, J, SAURAT, M, BRINGEZU, S, LELIEVELD, J, LOHILA, A, REBMANN, C, JUNG, M, BASTVIKEN, D, ABRIL, G, GRASSI, G, LEIP, A, FREIBAUER, A, KUTSCH, W, DON, A, NIESCHULZE, J, BÖRNER, A, GASH, J.H, DOLMAN, A.J

“…Overviewing the European carbon (C), greenhouse gas (GHG), and non-GHG fluxes, gross primary productivity (GPP) is about 9.3 Pg yr⁻¹, and fossil fuel imports…”
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An optimized fine root sampling methodology balancing accuracy and time investment by Berhongaray, G., King, J. S., Janssens, I. A., Ceulemans, R.

“…Aims Tree roots are spatially highly heterogeneous and it thus requires large numbers of samples to detect statistically significant changes in root biomass…”
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