Linking plant hydraulics and the fast–slow continuum to understand resilience to drought in tropical ecosystems

2021 ◽  
Vol 230 (3) ◽  
pp. 904-923
Author(s):  
Rafael S. Oliveira ◽  
Cleiton B. Eller ◽  
Fernanda de V. Barros ◽  
Marina Hirota ◽  
Mauro Brum ◽  
...  
Keyword(s):  
Tropical Ecosystems ◽  
Plant Hydraulics

The Staging of Large Wastewater Treatment Plants - A “Modular” Approach

1992 ◽  
Vol 25 (4-5) ◽  
pp. 67-73
Author(s):  
H. Fleckseder ◽  
L. Prendl ◽  
H. Meulenbroek
Keyword(s):  
Wastewater Treatment ◽  
Driving Force ◽  
Wastewater Treatment Plants ◽  
Aeration Tank ◽  
Modular Approach ◽  
Central European ◽  
Plant Hydraulics ◽  
The World ◽  
Whole Life Cycle ◽  
Over Time

The primary driving force for re-investments in wastewater treatment plants in Austria - and also other countries in Central Europe - is at present not an increase in load to treatment but a marked increase in effluent requirements to be fulfilled. (The re-investments necessary for sludge handling and treatment remain outside this paper.) Within a period of 20 years, the load specific requirements on aeration tank volume rose five- to tenfold, when Lv = 2.0 kg BOD5/(m3d) was the starting value, and roughly doubled for final clarifiers. In addition, the importance of the application and expansion of primary sedimentation decreased as well. This development over time in Central European countries as well as the need to utilize previous investments as long as possible - 35 to 60 years for civil works are common as periods of depreciation - indicate that investments in new plant at any location in the world have to consider the possible whole life cycle of a plant and that plant hydraulics becomes the “key hook” for expandability.

Genome-wide diversity analysis for signatures of selection of Bos indicus adaptability under extreme agro-climatic conditions of temperate and tropical ecosystems

Animal Gene ◽  
2021 ◽  
pp. 200115
Author(s):  
Shivam Bhardwaj ◽  
Sanjeev Singh ◽  
Indrajit Ganguly ◽  
A.K. Bhatia ◽  
Vijay K. Bharti ◽  
...  
Keyword(s):  
Bos Indicus ◽  
Climatic Conditions ◽  
Diversity Analysis ◽  
Tropical Ecosystems ◽  
Genome Wide ◽  
Signatures Of Selection ◽  
Selection Of

scholarly journals Resilience of Tropical Ecosystems to Ocean Deoxygenation

2021 ◽  
Vol 36 (3) ◽  
pp. 227-238
Author(s):  
Andrew H. Altieri ◽  
Maggie D. Johnson ◽  
Sara D. Swaminathan ◽  
Hannah R. Nelson ◽  
Keryn B. Gedan
Keyword(s):  
Tropical Ecosystems ◽  
Ocean Deoxygenation

scholarly journals Aboveground carbon stock is related to land cover and woody species diversity in tropical ecosystems of Eastern Ethiopia

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Dejene W. Sintayehu ◽  
Anteneh Belayneh ◽  
Nigussie Dechassa
Keyword(s):  
Species Diversity ◽  
Land Cover ◽  
Carbon Stock ◽  
Woody Species ◽  
Eastern Ethiopia ◽  
Tropical Ecosystems ◽  
Aboveground Carbon ◽  
Woody Species Diversity

Endo- and Ectomycorrhizas in Tropical Ecosystems of Colombia

2019 ◽  
pp. 111-146 ◽  
Author(s):  
Clara P. Peña-Venegas ◽  
Aída M. Vasco-Palacios
Keyword(s):  
Tropical Ecosystems

scholarly journals Integrating plant hydraulics and gas exchange along the drought-response trait spectrum

2014 ◽  
Vol 34 (10) ◽  
pp. 1031-1034 ◽  
Author(s):  
S. Manzoni
Keyword(s):  
Gas Exchange ◽  
Drought Response ◽  
Plant Hydraulics

scholarly journals Linking hydraulic traits to tropical forest function in a size-structured and trait-driven model (TFS v.1-Hydro)

2016 ◽  
Vol 9 (11) ◽  
pp. 4227-4255 ◽  
Author(s):  
Bradley O. Christoffersen ◽  
Manuel Gloor ◽  
Sophie Fauset ◽  
Nikolaos M. Fyllas ◽  
David R. Galbraith ◽  
...  
Keyword(s):  
Tropical Forest ◽  
Water Potential ◽  
Plant Traits ◽  
Coupled Model ◽  
Leaf Traits ◽  
Tree Size ◽  
Leaf Mass Per Area ◽  
Stem Water Potential ◽  
Plant Hydraulics ◽  
Individual Trees

Abstract. Forest ecosystem models based on heuristic water stress functions poorly predict tropical forest response to drought partly because they do not capture the diversity of hydraulic traits (including variation in tree size) observed in tropical forests. We developed a continuous porous media approach to modeling plant hydraulics in which all parameters of the constitutive equations are biologically interpretable and measurable plant hydraulic traits (e.g., turgor loss point πtlp, bulk elastic modulus ε, hydraulic capacitance Cft, xylem hydraulic conductivity ks,max, water potential at 50 % loss of conductivity for both xylem (P50,x) and stomata (P50,gs), and the leaf : sapwood area ratio Al : As). We embedded this plant hydraulics model within a trait forest simulator (TFS) that models light environments of individual trees and their upper boundary conditions (transpiration), as well as providing a means for parameterizing variation in hydraulic traits among individuals. We synthesized literature and existing databases to parameterize all hydraulic traits as a function of stem and leaf traits, including wood density (WD), leaf mass per area (LMA), and photosynthetic capacity (Amax), and evaluated the coupled model (called TFS v.1-Hydro) predictions, against observed diurnal and seasonal variability in stem and leaf water potential as well as stand-scaled sap flux. Our hydraulic trait synthesis revealed coordination among leaf and xylem hydraulic traits and statistically significant relationships of most hydraulic traits with more easily measured plant traits. Using the most informative empirical trait–trait relationships derived from this synthesis, TFS v.1-Hydro successfully captured individual variation in leaf and stem water potential due to increasing tree size and light environment, with model representation of hydraulic architecture and plant traits exerting primary and secondary controls, respectively, on the fidelity of model predictions. The plant hydraulics model made substantial improvements to simulations of total ecosystem transpiration. Remaining uncertainties and limitations of the trait paradigm for plant hydraulics modeling are highlighted.

Sign in / Sign up

Export Citation Format

Share Document