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12: Plant water movement in xylem and phloem: A new perspective, 16.08.2017

Autor

Kaare H. Jensen

Herausgeber

KIT | Webcast

Beteiligtes Institut

KIT-Bibliothek (BIB)

Genre

Vorlesung

Beschreibung

12 |
0:00:00 Start
0:00:44 Why study plants?
0:02:09 Agricultural production
0:03:54 Plant vascular transport
0:05:58 Drought kills trees
0:06:56 Question: Why do plants need (so much) water?
0:08:02 Exchange of water for CO2
0:08:27 Cost of CO2 Diffusion and Fick's law
0:14:32 Transport Processes: Diffusion and advection
0:16:08 The Advection-Diffusion equation
0:19:10 Wood microstructure
0:21:25 Question: What pressures are needed to drive flow?
0:25:23 Pressure-drop/Flow rate
0:28:10 Transport Processes: The Navier-Stokes Equation
0:36:29 The Stokes equation Hagen-Poiseuille law
0:38:20 Analogy between electric and fluidic systems
0:39:53 Sugar transport
0:42:12 What powers sugar transport?
0:45:01 Taking the blood pressure of plants
0:51:07 The Münch mechanism Osmotic pressure pump
0:52:53 The leaf is an osmotic pump
0:54:57 Synthetic Phloem: Experiments by Münch (1927)

Laufzeit (hh:mm:ss)

00:56:07

Serie

MICMoR Summer School 2017: Transport Phenomena and the Limits of Life in the Biosphere

Publiziert am

30.01.2018

Fachgebiet

Geowissenschaften

Lizenz

KITopen-Lizenz

Auflösung 1280 x 720 Pixel
Seitenverhältnis 16:9
Audiobitrate 128000 bps
Audio Kanäle 2
Audio Codec aac
Audio Abtastrate 48000 Hz
Gesamtbitrate 933833 kbps
Farbraum yuv420p
Container mov,mp4,m4a,3gp,3g2,mj2
Medientyp video/mp4
Dauer 3367 s
Dateiname DIVA-2018-118_hd.mp4
Dateigröße 393.038.787 byte
Bildwiederholfrequenz 25
Videobitrate 799737 kbps
Video Codec h264

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