Diurnal cycles in sap flow and leaf water potential: do leaf height - PowerPoint PPT Presentation

Nov 18, 2022 •215 likes •373 views

Diurnal cycles in sap flow and leaf water potential: do leaf height and species identity matter? Adarsh U.G., College of Forestry-Sirsi Akshay Surendra, NCBS-Bangalore Rishiddh Jhaveri, IISER-Pune Flow of water in a tree: potential gradient

Diurnal cycles in sap flow and leaf water potential: do leaf height and species identity matter? Adarsh U.G., College of Forestry-Sirsi Akshay Surendra, NCBS-Bangalore Rishiddh Jhaveri, IISER-Pune
Flow of water in a tree: potential gradient Choat et al., 2018
Model Sperry et al., 2017
Hypotheses Diurnal cycle in sap flow and leaf-water potential There is a lag in leaf-water potential between bottom leaves and top leaves
Methods Turner 1988; Lu 1988
Trees of interest Terminalia paniculata Careya arborea Canopy species, tree height: 18.9 m Middle-storey species, tree height: 7m Bottom measurement: at 1.6 m Bottom measurement: at 3.5 m Top measurement: at 6 m Top measurement: at 7 m
Diurnal cycle of leaf water potential for two species
Diurnal cycle of leaf water potential at two heights
Comparing temperature, sap flow and leaf water potential
Key-takeways ● Diurnal pattern of a hump-shaped curve (with mid-day peak) for temperature, sap flow (2 species, 3 days) and leaf-water potential (2 species, 2 heights) ● Sap flow picks up later than leaf-water potential (sap flow follows leaf water conductance) ● Sap flow and leaf-water potential do no go to ‘zero’ by dusk (~7pm) ● Higher (negative) leaf water potential at greater height-of- leaf (terpan, cararb)
Thank you

Recommend

Investigating the Seasonal and Diurnal Cycles of Ocean Vector Winds, Precipitation, and Lightning

https://ntrs.nasa.gov/search.jsp?R=20170004483 2018-07-26T23:36:06+00:00Z Investigating the Seasonal and Diurnal Cycles of Ocean Vector Winds, Precipitation, and Lightning near the Philippines Timothy Lang NASA Marshall Space Flight Center

555 views • 23 slides

Potential Flow & Flow Nets Potential Flow Irrotational flow for which implies:

Potential Flow & Flow Nets Potential Flow Irrotational flow for which implies: This allows you to decompose velocity into a scalar potential such that: Combined with conservation of mass (continuity) and incompressibility you

110 views • 7 slides

Diurnal and Weekly Cycles in IPv6 Traffic Stephen Strowes Yahoo sds@yahoo-inc.com Motivation

Diurnal and Weekly Cycles in IPv6 Traffic Stephen Strowes Yahoo sds@yahoo-inc.com Motivation Non-trivial IPv6 deployments in access networks impacts capacity planning, peering, DNS load balancing (Also, people kept asking why IPv6 is 2-3%

496 views • 8 slides

Diurnal SST and diurnal rainfall in the Maritime Continent from a 40 km regional coupled model

Diurnal SST and diurnal rainfall in the Maritime Continent from a 40 km regional coupled model during Nov14-Dec13, 2011 (a) Diurnal amplitude of land and sea surface temperatures (b) Topography in the MC domain Philippines Borneo New Guinea

131 views • 10 slides

Water Potential = p + s Water Potential Used to describe the tendency of water to

Water Potential = p + s Water Potential Used to describe the tendency of water to leave one place in favor of another Water always moves from an area of higher water potential to an area of lower water potential Water Potential

310 views • 14 slides

BL diurnal cycle over land Atm S 547 Lecture 12, Slide 1 Diurnal variation of temperature over

BL diurnal cycle over land Atm S 547 Lecture 12, Slide 1 Diurnal variation of temperature over Wangara Atm S 547 Lecture 12, Slide 2 Convective mixed layer growth and entrainment Atm S 547 Lecture 12, Slide 3 Flatland observations

532 views • 4 slides

Smoothing investment cycles in the water sector 13 July 2012 Mark Worsfold, Chief Engineer, Ofwat

Smoothing investment cycles in the water sector 13 July 2012 Mark Worsfold, Chief Engineer, Ofwat 7 Water today, water tomorrow Agenda Prime Ministers views of infrastructure Future Price Limits Framework update Smoothing investment cycles

540 views • 31 slides

Chapter 17 Network Flow VI - Min-Cost Flow Applications CS 573: Algorithms, Fall 2013 October

Chapter 17 Network Flow VI - Min-Cost Flow Applications CS 573: Algorithms, Fall 2013 October 24, 2013 17.0.0.1 Lemma decomposing flow into cycles Lemma 17.0.1. f :a circulation in G . Then, f can be decomposed into m cycles, C 1 , . . . ,

315 views • 9 slides

Network Flow 5 Network Flow terminology Network flow is similar to finding how much water we

1 Network Flow 5 Network Flow terminology Network flow is similar to finding how much water we can bring from a source to a sink (infinite) (intermediates cannot hold water) 6 Network Flow terminology Definitions: c(u,v)

576 views • 34 slides

Potential Flow Lecture 5 ME EN 412 Andrew Ning aning@byu.edu Outline Equation Hierarchy

Potential Flow Lecture 5 ME EN 412 Andrew Ning aning@byu.edu Outline Equation Hierarchy Potential Flow Panel Methods Other Considerations Equation Hierarchy Equation Hierarchy When is an inviscid flow assumption valid? Video: flow over

227 views • 12 slides

The Leaf LEAVES: Function: Photosynthesis (food production for the whole plant).

The Leaf LEAVES: Function: Photosynthesis (food production for the whole plant). Transpiration Blade: Flat expanded area Petiole: stalk that connects leaf blade to stem, and transports materials Simple Leaf Compound Leaf

560 views • 27 slides

15 min interval data- shows flow of water to end use 15 min interval data- shows tank top up

15 min interval data- shows flow of water to end use 15 min interval data- shows tank top up only Base flow represents the constant underlying flow of water. Meaning the water that is always flowing through the pipes at any given time, even

855 views • 25 slides

Generalized Flow-Cut Dualities Sanjeevi Krishnan (Upenn) Bremen 2013 MAX FLOW = MIN CUT The

Generalized Flow-Cut Dualities Sanjeevi Krishnan (Upenn) Bremen 2013 MAX FLOW = MIN CUT The setting is a weighted digraph G with distinguished start and end points a,b. MAX FLOW = MIN CUT Flows = integral 1-cycles whose coefficients are

380 views • 21 slides

Relationship between Water Flow and Animal Size Variables Control variables: Water depth, river

Relationship between Water Flow and Animal Size Variables Control variables: Water depth, river bed substrate composition, light intensity, water temperature Independent variable : Water flow rate Dependent variables: Animal species(size of

373 views • 10 slides

Lessons from USAID LEAF David Ganz, Former Chief of Party, USAID LEAF Chief of Party,

Lessons from USAID LEAF David Ganz, Former Chief of Party, USAID LEAF Chief of Party, SERVIR-Mekong (USAID/ NASA) USAID LEAF - Overview USAID Lowering Emissions in Asias Forests (USAID LEAF) Donor: USAID/RDMA Period: 5 years

520 views • 20 slides

Diurnal cycle of Southern China Monsoon: characteristics and preliminary simulation Outline 1.

Diurnal cycle of Southern China Monsoon: characteristics and preliminary simulation Outline 1. Briefly on Southern China Monsoon. 2. Diurnal variations revealed by TRMM (1998~2006). 3 . Some results by the trial experiments . 4 .

152 views • 12 slides

Evaluation and Evaluation and Design of Water- - Design of Water Splitting Cycles Splitting

Evaluation and Evaluation and Design of Water- - Design of Water Splitting Cycles Splitting Cycles Scott Mullin, Jacob Tarver, Uchenna Uchenna Odi Odi Scott Mullin, Jacob Tarver, University of Oklahoma May 2006 Overview Overview

703 views • 67 slides

2. Long-term water cycles: Wet cycle and flood risk in

1. Climate change impact on glaciers and river runoff in the Kharkhiraa river basin, Mongolia 2. Long-term water cycles: Wet cycle and flood risk

352 views • 22 slides

Hydrology methodology used and results Potential Water Storage Criteria Development Sub-

Potential Water Storage Sites on Arizona State Trust Land study (2017) Hydrology methodology used and results Potential Water Storage Criteria Development Sub- Committee Meeting January 24, 2020 Background SB1399 Directed State

188 views • 6 slides

Biochemistry photosynthetic cells within a leaf The ground tissue in a leaf is sandwiched

10/7/16 Tissue Organization of Leaves : The epidermal barrier in leaves is interrupted by stomata, which allow CO 2 exchange between the surrounding air and the Biochemistry photosynthetic cells within a leaf The ground tissue in a leaf

340 views • 14 slides

Pecan Bacterial Leaf Scorch Disease Review and Update SEPGA, 2013 Randy Sanderlin LSU AgCenter

Pecan Bacterial Leaf Scorch Disease Review and Update SEPGA, 2013 Randy Sanderlin LSU AgCenter Pecan Research-Extension Station Shreveport, LA Pecan bacterial leaf scorch (PBLS) caused by bacterium Xylella fastidiosa that lives in the water

745 views • 21 slides

Flow Modeling on Massive Terrains Laura Toma Duke University Flow Modeling on Massive Terrains

Flow Modeling on Massive Terrains Laura Toma Duke University Flow Modeling on Massive Terrains Flow Modeling Flow direction The direction water flows at a point in the terrain. Flow accumulation value Total amount of water which

399 views • 15 slides

Water Diplomacy Building solutions to reduce potential for water stress and conflict Zaki

Water Diplomacy Building solutions to reduce potential for water stress and conflict Zaki Shubber Lecturer in Law and Water Diplomacy Why water diplomacy? Increased water uses and water uses Increased variability in the availability of

111 views • 7 slides

Chicago Type, Double Leaf, Trunnion, Bascule Bridge Chicago Type design evolved from research

Chicago Type, Double Leaf, Trunnion, Bascule Bridge Chicago Type design evolved from research in late 1890s by the Chicago Bridge Department to find a patent free design for both land and water based traffic Double Leaf two

658 views • 32 slides