1-5- eco services

1-5- eco services - Bis 2B - 1/5/11 Ecosystem services 1....

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Bis 2B - 1/5/11 Ecosystem services 1. provisioning services 2. regulating services 3. cultural services 4. supporting services Millenium ecosystem assessment Provisioning 1. provisioning- tangible things, what we harvest from the ecosystem. oil is not included because it is not renewable. -Food is a very important one. There is a lot of people who do not get enough food. About 1 billion. We have increased yeild per unit area. We have also expanded farm land. -wood production. Most timber harvested are sustainable. -fresh water. amount of water is decreasing relative to demand. a lot of people lack clean water supply. San Joaquin valley- far more water is being used for agriculture than the rivers can provide, so they are pumping it out of the ground. They are getting more water under the ground than rainwater can replenish. So the water in the soil is decreasing, and the cost of pumping water out of the ground is expensive. Water tables fall about a foot per year.
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/22/2011 for the course BIS 2B taught by Professor Strong during the Winter '08 term at UC Davis.

Page1 / 3

1-5- eco services - Bis 2B - 1/5/11 Ecosystem services 1....

This preview shows document pages 1 - 2. Sign up to view the full document.

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