| publications-1721 |
Peer reviewed articles |
2021 |
AliĂŠnor Lavergne, Deborah Hemming, Iain Colin Prentice, Rossella Guerrieri, Rebecca J. Oliver, Heather Graven |
Global decadal variability of plant carbon isotope discrimination and its link to gross primary production |
Global Change Biology |
10.1111/gcb.15924 |
Uncategorized |
Uncategorized |
|
AbstractCarbon isotope discrimination (Î13C) in C3 woody plants is a key variable for the study of photosynthesis. Yet how Î13C varies at decadal scales, and across regions, and how it is related to gross primary production (GPP), are still incompletely understood. Here we address these questions by implementing a new Î13C modelling capability in the landâsurface model JULES incorporating both photorespiratory and mesophyllâconductance fractionations. We test the ability of four leafâinternal CO2 concentration models embedded in JULES to reproduce leaf and treeâring (TR) carbon isotopic data. We show that all the tested models tend to overestimate average Î13C values, and to underestimate interannual variability in Î13C. This is likely because they ignore the effects of soil water stress on stomatal behavior. Variations in postâphotosynthetic isotopic fractionations across species, sites and years, may also partly explain the discrepancies between predicted and TRâderived Î13C values. Nonetheless, the âleastâcostâ (Prentice) model shows the lowest biases with the isotopic measurements, and lead to improved predictions of canopyâlevel carbon and water fluxes. Overall, modelled Î13C trends vary strongly between regions during the recent (1979â2016) historical period but stay nearly constant when averaged over the globe. Photorespiratory and mesophyll effects modulate the simulated global Î13C trend by 0.0015 ¹ 0.005â° and â0.0006 ¹ 0.001â° ppmâ1, respectively. These predictions contrast with previous findings based on atmospheric carbon isotope measurements. Predicted Î13C and GPP tend to be negatively correlated in wetâhumid and cold regions, and in tropical African forests, but positively related elsewhere. The negative correlation between Î13C and GPP is partly due to the strong dominant influences of temperature on GPP and vapor pressure deficit on Î13C in those forests. Our results demonstrate that the combined analysis of Î13C and GPP can help understand the drivers of photosynthesis changes in different climatic regions. |
787203 |
|
|
|
| publications-1722 |
Peer reviewed articles |
2023 |
Giovanni Virruso, Calogero Cassaro, Alessandro Tamburini, Andrea Cipollina, Giorgio D.M. Micale |
Performance Evaluation of an Electrodialysis with Bipolar Membranes Pilot Plant Operated in Feed & Bleed Mode |
Chemical Engineering Transactions |
10.3303/cet23105013 |
Control Systems |
Natural Water Bodies |
|
No abstract available |
869474 |
|
|
|
| publications-1723 |
Peer reviewed articles |
2022 |
Ali Elahinik, Maureen Haarsma, Martin Pabst, Ben Abbas, Dimitrios Xevgenos, Mark C.M. van Loosdrecht, Mario Pronk |
Glycerol conversion by aerobic granular sludge |
Water Research |
10.1016/j.watres.2022.119340 |
AI & Machine Learning |
Precipitation & Ecological Systems |
|
No abstract available |
869474 |
|
|
|
| publications-1724 |
Peer reviewed articles |
2023 |
Esmeralda Cruz-Silva, Sandy P. Harrison, I. Colin Prentice, Elena Marinova |
Holocene vegetation dynamics of the Eastern Mediterranean region: Old controversies addressed by a new analysis |
Journal of Biogeography |
10.1111/jbi.14749 |
IoT & Sensors |
Wastewater Treatment Plants |
|
AbstractAimWe reconstruct vegetation changes since 12 ky in the Eastern Mediterranean to examine four features of the regional vegetation history that are controversial: the extent of nonâanalogue vegetation assemblages in the transition from the Late Glacial to the early Holocene, the synchroneity of postglacial forest expansion, the geographical extent of temperate deciduous forest during the midâHolocene and the timing and trigger for the reâestablishment of droughtâtolerant vegetation during the late Holocene.LocationThe Eastern MediterraneanâBlack Sea Caspian Corridor.TaxonVascular plants.MethodsWe reconstruct vegetation changes for 122 fossil pollen records using a method that accounts for withinâbiome variability in pollen taxon abundance to determine the biome with which a sample has greatest affinity. Perâbiome affinity threshold values were used to identify samples that do not belong to any modern biome. We apply time series analysis and mapping to examine space and time changes.ResultsSites with nonâanalogue vegetation were most common between 11.5 and 9.5 ky and mostly in the Carpathians. The transition from open vegetation to forest occurred at 10.64âÂąâ0.65 ky across the whole region. Temperate deciduous forest was not more extensive at 6 ky; maximum expansion occurred between 5.5 and 5 ky. Expansion of forest occurred between c. 4 and 2.8âk, followed by an abrupt decrease and a subsequent recovery. This pattern is not consistent with a systematic decline of forest towards more droughtâtolerant vegetation in the late Holocene but is consistent with centennialâscale speleothem patterns linked to variations in moisture availability.Main ConclusionsWe show the occurrence of nonâanalogue vegetation types peaked during early Holocene, forest expansion was synchronous across the region and there was an expansion of moistureâdemanding temperate trees around 5.5 to 5 ky. There is no signal of a continuous late Holocene aridification, but changes in forest cover appear to reflect climatic rather than anthropogenic influences. |
787203 |
|
|
|
| publications-1725 |
Peer reviewed articles |
2022 |
Zheng, F., Prentice, I.C |
Critical soil moisture thresholds of plant water stress in terrestrial ecosystems. |
Science Advances |
10.1126/sciadv.abq7827 |
IoT & Sensors |
Wastewater Treatment Plants |
|
Plant water stress occurs at the point when soil moisture (SM) limits transpiration, defining a critical SM threshold (θ crit ). Knowledge of the spatial distribution of θ crit is crucial for future projections of climate and water resources. Here, we use global eddy covariance observations to quantify θ crit and evaporative fraction (EF) regimes. Three canonical variables describe how EF is controlled by SM: the maximum EF (EF max ), θ crit , and slope (S) between EF and SM. We find systematic differences of these three variables across biomes. Variation in θ crit , S, and EF max is mostly explained by soil texture, vapor pressure deficit, and precipitation, respectively, as well as vegetation structure. Dryland ecosystems tend to operate at low θ crit and show adaptation to water deficits. The negative relationship between θ crit and S indicates that dryland ecosystems minimize θ crit through mechanisms of sustained SM extraction and transport by xylem. Our results further suggest an optimal adaptation of local EF-SM response that maximizes growing-season evapotranspiration and photosynthesis. |
787203 |
|
|
|
| publications-1726 |
Peer reviewed articles |
2024 |
Rodoula Ktori, Mar Palmeros Parada, Marcos Rodriguez-Pascual, Mark C.M. van Loosdrecht, Dimitrios Xevgenos |
A value-sensitive approach for integrated seawater desalination and brine treatment |
Sustainable Production and Consumption |
10.1016/j.spc.2024.11.006. |
Uncategorized |
Water System |
|
No abstract available |
869474 |
|
|
|
| publications-1727 |
Peer reviewed articles |
2024 |
Giovanni Virruso, Calogero Cassaro, Waqar Muhammad Ashraf, Alessandro Tamburini, Vivek Dua, I. David L. Bogle, Andrea Cipollina, Giorgio Micale |
Dynamic Modelling of Electrodialysis with Bipolar Membranes using NARX Recurrent Neural Networks |
Computer Aided Chemical Engineering |
10.1016/b978-0-443-28824-1.50031-4 |
Simulation & Modeling |
Water System |
|
No abstract available |
869474 |
|
|
|
| publications-1728 |
Peer reviewed articles |
2022 |
Carmelo Morgante, Fabrizio Vassallo, Giuseppe Battaglia, Andrea Cipollina, Fabrizio Vicari, Alessandro Tamburini and Giorgio Micale |
Influence of Operational Strategies for the Recovery of Magnesium Hydroxide from Brines at a Pilot Scale |
Industrial & Engineering Chemistry Research |
10.1021/acs.iecr.2c02935 |
Uncategorized |
Water System |
|
No abstract available |
869474 |
|
|
|
| publications-1729 |
Peer reviewed articles |
2025 |
Rodoula Ktori, Mar Palmeros Parada, Marcos Rodriguez-Pascual, Mark C.M. van Loosdrecht, Dimitrios Xevgenos |
Sustainability assessment framework for integrated seawater desalination and resource recovery: A participatory approach |
Resources, Conservation and Recycling |
10.1016/j.resconrec.2024.107954 |
Uncategorized |
Water System |
|
No abstract available |
869474 |
|
|
|
| publications-1730 |
Peer reviewed articles |
2024 |
Giuseppe Scelfo, Alessandro Trezzi, Fabrizio Vassallo, Andrea Cipollina, Vittorio Landi, Christina Xenogianni, Alessandro Tamburini, Dimitrios Xevgenos, Giorgio Micale |
Demonstration of ultra-high-water recovery and brine concentration in a prototype evaporation unit: Towards zero liquid discharge desalination |
Separation and Purification Technology |
10.1016/j.seppur.2024.129427 |
Uncategorized |
Water System |
|
No abstract available |
869474 |
|
|
|