Our
next step is to determine locations that are close to water. Most of the
streams shown on the Tonto basin map are actually intermittent. To avoid
considering these, we first exclude all streams that are classed as first
order streams - that is, they have no other streams flowing into them.
Using the remaining streams, we calculate a 500 meter buffer around them
assigning all land inside the buffer a 1 and outside a 0. The red areas
indicate land that satisfies the second criterion.
Click Continue to go on.....