lecture_10_SAC_H2O&Ncycles

lecture_10_SAC_H2O&Ncycles - W ater Cycle & N...

Info iconThis preview shows pages 1–14. Sign up to view the full content.

View Full Document Right Arrow Icon
Water Cycle & Nutrient Cycling Part 1 SAC 2/4/2010 The Water Cycle Overview on Nutrient Cycling Nutrient limitation to NPP The Nitrogen Cycle
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Clarifications from last class:
Background image of page 2
Fluxes and pools POOL (liters) FLUX- I NPUT (liters/minu te) TURNOVER TI M E: POOL FLUX OUTPUT
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The Water Cycle Units= TT 1TT= 1x10 18 g
Background image of page 4
Questions : 1. Which is the largest pool of water in the biosphere? 2. How do the precipitation/evaporation ratios differ between land and oceans? 3. Does the water vapor in the atmosphere move from land to the ocean or from ocean to the land? Why? 4. Which is the major source of potable water here in Florida?
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The Water Cycle The processes of evaporation, transpiration, and precipitation cycle water through ecosystems
Background image of page 6
The Water Cycle 97% of the water in the globe resides in the oceans
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The Water Cycle • 22% of precipitation occurs over land, and is greater than losses by evaporation and transpiration • 78% of precipitation occurs over ocean, which is less than losses by evaporation
Background image of page 8
The residence time of water in the atmosphere is 2 weeks The oceans and land surface contain approximately 1,400,000 TT of water The atmosphere contains 13 TT of water vapor, and each year there is approximately 496 TT of precipitation globally. The residence time of water in liquid form on the surface is 2,800 years, 100,000 longer than in the atmosphere. The Water Cycle
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Nutrient Cycles
Background image of page 10
Nutrient A nutrient is a chemical that an organism needs to live and grow or a substance used in an organism's metabolism which must be taken in from its environment Cycling The exchange of “mineral elements” among plants, animals, microbes and the abiotic environment (soil, water, atmosphere ) From the plant’s perspective, belowground resources control GPP, NPP, and decomposition From the animal’s perspective, nutrients sometimes limit function, growth and reproduction
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Global NPP http://www.uni- klu.ac.at/socec/bilder/NPP0_600.png Which factors determine NPP??
Background image of page 12
Background image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 14
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 07/13/2011 for the course PCB 4034C taught by Professor Osenberg during the Spring '11 term at University of Florida.

Page1 / 49

lecture_10_SAC_H2O&Ncycles - W ater Cycle & N...

This preview shows document pages 1 - 14. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online