[HubbardBrookISE] Fwd: plot treatments

[Rustad, Lindsey -FS]

Dear ICErs,
thanks to those who attended the conference call this morning. Based on that conversation the following designations were made. The rationale is also included!
We are all quite happy so far with these designations!
Best,
Lindsey

Sent from my iPhone

Begin forwarded message:

From: "Campbell, John -FS" <jlcampbell at fs.fed.us<mailto:jlcampbell at fs.fed.us>>
Date: November 2, 2015 at 1:19:50 PM EST
To: "Rustad, Lindsey -FS" <lrustad at fs.fed.us<mailto:lrustad at fs.fed.us>>, "lindsey rustad (rustad at maine.edu<mailto:rustad at maine.edu>) (rustad at maine.edu<mailto:rustad at maine.edu>)" <rustad at maine.edu<mailto:rustad at maine.edu>>
Subject: plot treatments

Hi Lindsey,

Below are the plot treatment assignments.  I included some notes about how the decisions
were made.  I also included the R script I wrote to do this.

PlotNo Treatment
 [1,] "1"    "0.5 yr 2"
 [2,] "2"    "0.50 yr 1"
[3,] "3"    "0.25 yr 1"
[4,] "4"    "Control"
 [5,] "5"    "0.75 yr 1"
[6,] "6"    "0.25 yr 1"
[7,] "7"    "Control"
 [8,] "8"    "0.5 yr 2"
 [9,] "9"    "0.75 yr 1"
[10,] "10"   "0.5 yr 1"

Notes:
Plots were divided into two blocks based on position (Plots 1-5 and Plots 6-10).
each block will get one of the two replicate treatments assigned to it.

Treatments are as follows:
Control
0.25" in yr 1
0.50" in yr 1
0.75" in yr 1
0.50" in yr 1 and 2

Plots 4 and 7 were selected as controls because they contained
few sugar maple trees.  Since the controls are untreated, we can
use some nearby sugar maple trees from outside the plot.

Plot 1 was assigned a 0.5" treatment in year two because it is closer to
Hubbard Brook than plots 2-5, which will make it easier to spray.  Ian said
he would prefer to have the one he has to spray twice closer to the stream.

Plot 6 was selected as a 0.25" treatment because it is odd and the 0.25"
treatment was considered less important than the other treatments.
At plot 6 the lysimeter chemistry is different, the soils are rocky, and
the vegetation is not ideal (i.e., no red maple, not many trees).

R script used to assign treatments to plots:

PlotNo <- c(1,2,3,4,5,6,7,8,9,10)
Treatment <- c("0.5 yr 2","","","Control","","0.25 yr 1","Control","","","")
Assign <- cbind(PlotNo,Treatment)

Block_1_to_5 <- sample(c("0.25 yr 1","0.50 yr 1","0.75 yr 1"), 3, replace=F)
Block_6_to_10 <- sample(c("0.5 yr 1","0.5 yr 2","0.75 yr 1"), 3, replace=F)

Assign[2, "Treatment"] <- Block_1_to_5[1]
Assign[3, "Treatment"] <- Block_1_to_5[2]
Assign[5, "Treatment"] <- Block_1_to_5[3]

Assign[8, "Treatment"] <- Block_6_to_10[1]
Assign[9, "Treatment"] <- Block_6_to_10[2]
Assign[10, "Treatment"] <- Block_6_to_10[3]
Assign

[Forest Service Shield]

John L. Campbell, PhD
Research Ecologist

Forest Service
Northern Research Station

p: 603-868-7643
f: 603-868-7604
jlcampbell at fs.fed.us<mailto:jlcampbell at fs.fed.us>

271 Mast Rd.
Durham, NH 03824
www.fs.fed.us<http://www.fs.fed.us/>
[http://wwwstatic.fs.usda.gov/images/email/usda-logo.png]<http://usda.gov/>[Twitter Logo]<https://twitter.com/forestservice>[Facebook Logo]<http://facebook.com/USDA>

Caring for the land and serving people






-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.sr.unh.edu/pipermail/hubbardbrookise/attachments/20151103/c87b5cb8/attachment-0001.html 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.png
Type: image/png
Size: 7801 bytes
Desc: image001.png
Url : http://lists.sr.unh.edu/pipermail/hubbardbrookise/attachments/20151103/c87b5cb8/image001-0001.png 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image002.png
Type: image/png
Size: 1701 bytes
Desc: image002.png
Url : http://lists.sr.unh.edu/pipermail/hubbardbrookise/attachments/20151103/c87b5cb8/image002-0001.png 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image003.png
Type: image/png
Size: 1594 bytes
Desc: image003.png
Url : http://lists.sr.unh.edu/pipermail/hubbardbrookise/attachments/20151103/c87b5cb8/image003-0001.png 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image004.png
Type: image/png
Size: 1453 bytes
Desc: image004.png
Url : http://lists.sr.unh.edu/pipermail/hubbardbrookise/attachments/20151103/c87b5cb8/image004-0001.png