616 reputation
410
bio website pronghorns.net
location Utah
age
visits member for 2 years, 3 months
seen Jun 10 at 5:28

Mar
21
awarded  Yearling
Jan
7
awarded  Commentator
Jan
7
comment Gas sampling, in need of large septums
plumb it to a smaller diameter and add a septum to that?
Sep
1
awarded  Notable Question
May
8
awarded  Nice Answer
Mar
21
awarded  Yearling
Feb
8
comment How do trees use Adhesion and Cohesion to move water against gravity?
Its important to add that the driving force for the actual water movement is the gradient in water potential in the system (atmosphere is dry, while the mesophyll of the leaf is wet). The plant expends no energy to move the water.
Jan
27
awarded  Popular Question
Jun
27
comment Do all plants photosynthesize with equal efficiency?
Great reference that I wish I had seen before posting. If I'm reading it right, the 4.6 and 6% figures are theoretical. They give the highest observed efficiencies as 3.4 and 4.3% (C3 and C4 respectively), so values in the WP article are very high.
Jun
26
revised Do all plants photosynthesize with equal efficiency?
edited tags
Jun
26
revised Can I estimate leaf temperature from air temperature? What other information would be required?
grammar
Jun
26
revised Can I estimate leaf temperature from air temperature? What other information would be required?
deleted 7 characters in body
Jun
26
answered Can I estimate leaf temperature from air temperature? What other information would be required?
Jun
25
revised Do all plants photosynthesize with equal efficiency?
just more editing to make it a little clearer
Jun
24
revised Do all plants photosynthesize with equal efficiency?
fixed some grammar
Jun
24
revised Do all plants photosynthesize with equal efficiency?
added 139 characters in body
Jun
23
revised Do all plants photosynthesize with equal efficiency?
added 47 characters in body
Jun
23
answered Do all plants photosynthesize with equal efficiency?
Jun
22
comment Can I estimate leaf temperature from air temperature? What other information would be required?
Leaf temperature is a function of air temp, water vapor pressure deficit, net radiation, stomatal conductance, and boundary layer conductance, among other things. Most of these change significantly within the course of a day (or more often), and consequently, so will the offset between leaf and air temp. There are some energy balance models that would be appropriate for estimating this offset (which I'll dig up if I get a chance).
Apr
24
answered Small worm living in some kind of cocoon, what are these animals?