[Condor51]

Whoa!!! Let's hold on here and do some math. Something doesn't sound kosher. (no offense meant)
Allegedly there's 17,000 trees on 150 acres according to these mopes, correct?

Okay class, let's start ....

1. 1 acre = 1076.39 SF
   
2. 150 acres = 161,458.5 SF
   
3. Then we divide that by 17,000 trees (correct?)
   
4. That results in One Tree per 9.498 SF.
   
5. Which is ONE tree per every 3.08'x3.08' of area.
   (a tad larger than a square yard)

So this "17,000 tree" stuff IS IMPOSSIBLE, it's baloney - unless they are extremely SKINNY Pine Trees! /s
OR... if it is true then the trees SHOULD be cut - and then I get the jerks reference to the Amazon Jungle.

Another way to look at the baloney in all this is just the Single Golf Course they want to build.

• Assuming a Championship type course of around 7200 yards in length (21,600 LF) x an 'average' width of say.. 50 yards per hole (150 LF), we get; 3,240,000 SF

  Let's stop right there - as the Golf Golf alone is now BIGGER than the whole 150 acre (161,458.5 SF) Development.

Ergo, someone is lying, and I think it's the Sierra Club.

[Condor51]

Oops, forgot to add..

Or very sloppy reporting.

[RGSpincich]

uhoh There are over 45,000SF in an acre.

[tubebender]

An acre in Eureka is 43,530 square feet...

[razorback-bert]

To get meaningful information, similar types of stands should be lumped together. For example, all poletimber stands should be treated differently from sawtimber stands. This can be taken from the map, or by looking at each plot datum. Tree size for the stand will be where the largest amount of basal area occurs.

To get an average for the stand, simply make a tally sheet which lumps all similar counted trees together, by diameter class, tree height, and any other distinctions made at the time of sampling. Then multiply by the number of trees per acre from the above chart and divide by the number of plots. This will be the average number of trees per acre. For total numbers, multiply by the number of acres. For volumes, simply multiply the # of trees by the appropriate volume per tree. The average diameter for the stand is the sum of the trees per diameter, multiplied by the diameter, divided by the total number of trees.

There are now two ways to get the average basal area for the stand. From the tally sheet that has been constructed, simply divide the number of trees by the number of plots, and multiply by 10 (which was the basal area factor of your sampling device). Another method is to take the average number of trees per acre, which was computed above, and multiply by .005454 times the diameter squared.


Been a long time since I was actively involved in managing my timber and pulp, but 113 trees a acre seems to be high.

[razorback-bert]

Picture of a cell tower in the Del Monte Forest, doesn't appear to support 113 trees an acre.