Search found 17 matches

by rgthurau
Mon Jan 26, 2015 11:17 pm
Forum: Applications and Utilities
Topic: i-eco canopy dieback impact on Condition, LAI, and runoff
Replies: 3
Views: 17488

i-eco canopy dieback impact on Condition, LAI, and runoff

iTree team. When processing some mock inventories through i-Eco, we're seeing some unexpected results for stormwater runoff values. From this post authored by Al Z. ( https://forums.itreetools.org/viewtopic.php?f=19&t=993 ) on "How does Eco calculate tree Structural Value?" there is a link to the pa...
by rgthurau
Tue Jan 20, 2015 12:50 pm
Forum: Applications and Utilities
Topic: What part of the tree to start distance and direction Energy
Replies: 1
Views: 13704

What part of the tree to start distance and direction Energy

When calculating energy benefits I am recording the distance and direction "from the tree to the nearest part of the building". Should this be the base of the tree or the edge of the canopy? These can be very different numbers. And, for direction, I'm assuming North is 0/360, south 180 etc.? Thanks ...
by rgthurau
Thu Jun 12, 2014 10:35 am
Forum: Applications and Utilities
Topic: Stratum already exist in land use descriptions error i-Eco
Replies: 1
Views: 13539

Stratum already exist in land use descriptions error i-Eco

We're trying to set up a stratified random sampling strategy in i-Eco. We have 250 plots distributed across a city, stratified using NLCD and instructions in the "Random Plots Stratification Workbook". Our issue is with the two text files required to stratify the data. The "Eco Strata" text file lis...
by rgthurau
Fri Feb 21, 2014 6:41 pm
Forum: Applications and Utilities
Topic: Documentation for Species Value Assignment
Replies: 5
Views: 27051

Re: Documentation for Species Value Assignment

Hello, Looking back at my question posted waaaay back in 2008 (has it been that long!?) I'm curious if there have been any serious changes to the way specific species contribute to ecosystem service values provided by trees in the Streets inventory? From the Manual v5.0 annual benefits reported are:...
by rgthurau
Wed Nov 28, 2012 6:32 pm
Forum: Applications and Utilities
Topic: Water related benefits in i-Eco 5 vs 4
Replies: 1
Views: 15361

Water related benefits in i-Eco 5 vs 4

I have i-eco data processed in version 4. I re-processed data in version 5 because of the additional benefits related to interception (supposed to report annual interception by species and land use). The written report produced by version 5 gives no information regarding interception. From the i-Eco...
by rgthurau
Fri Sep 12, 2008 3:57 pm
Forum: General Topics
Topic: Management Zone Criteria
Replies: 2
Views: 9760

Management Zone Criteria

Hi, I'm working on a tree inventory at a university in the Midwest, and we're interested in creating "management zones" to monitor diversity, tree health, age, etc. I've been searching the literature and: Are there any good guidelines out there for delineating management zones? Or any documents folk...
by rgthurau
Thu Aug 14, 2008 1:06 pm
Forum: Applications and Utilities
Topic: Define Species error
Replies: 9
Views: 25127

If you have some other way to identify what tree species each record is (i.e. comments section), then you could go into the database and change the "1" to the appropriate tree. Marking them as "non-tree" will remove them from the STRATUM assessment (I believe). My suggestion to make all the "1"s non...
by rgthurau
Wed Aug 13, 2008 2:04 pm
Forum: Applications and Utilities
Topic: Documentation for Species Value Assignment
Replies: 5
Views: 27051

Documentation for Species Value Assignment

Hello,
Can iTree give a reference to the methods for determining the "Species Value Assignments" given for certain species? I'm just looking to back up some of these values with some science.

For example: Carya species use the values of Green Ash for the calculations.

Thanks

RT
by rgthurau
Wed Aug 13, 2008 1:34 pm
Forum: Applications and Utilities
Topic: No Conifers for "Species Value Assignment": define
Replies: 1
Views: 12993

No Conifers for "Species Value Assignment": define

So, I'm assigning my unmatched species codes and I understand that the "Species Value Assignment" will dictate the algorythms used to calculate the values of species that are not in the STRATUM database. Why are there no conifers to match with my unmatched conifer trees? Am I missing something? Exam...
by rgthurau
Wed Aug 13, 2008 1:29 pm
Forum: Applications and Utilities
Topic: Define Species error
Replies: 9
Views: 25127

I'm certainly no expert, but I'm screwing around with the "define species" interface right now. Looks like you have at least one record in your inventory with a species code of "1". This code should be something like "ACSA1" for sugar maple. Somewhere in the inventory, someone chose to manually ente...
by rgthurau
Tue Aug 12, 2008 3:48 pm
Forum: Applications and Utilities
Topic: No "STRATUM_MCTI_Inventory" table created with PDA
Replies: 4
Views: 13126

Okay, thanks. It was the clicking of both green buttons that got me over the hump. Now, I'm posting a new question in another topic.

thanks

Rich
by rgthurau
Mon Aug 11, 2008 1:48 pm
Forum: General Topics
Topic: Access table for Relating Family to Species?
Replies: 7
Views: 19060

Well, although I have a formal education if Forestry, I never did have great training in pathology. My perspective on the most destructive forces for trees that I've seen or heard of (Chestnut blight, dutch elm, emerald ash) have all been at least genus level. Perhaps forest tent catepillars or the ...
by rgthurau
Mon Aug 11, 2008 12:49 pm
Forum: General Topics
Topic: Access table for Relating Family to Species?
Replies: 7
Views: 19060

One of our foresters here quoted an article stating the relative abundance for a healthy urban forest should 10%, 20%, 30% for any species, genus, family, respectively.
by rgthurau
Mon Aug 11, 2008 12:12 pm
Forum: General Topics
Topic: Access table for Relating Family to Species?
Replies: 7
Views: 19060

Yes, lots of plant info in the Plants Database. What I am looking for is a database table or spreadsheet that would be formatted to relate to either the species codes in iTree, or to the Genus species names in the "Botanical_Name" field from the "Trees_Species_PDA" table. Any simple table published ...
by rgthurau
Mon Aug 11, 2008 10:23 am
Forum: General Topics
Topic: Access table for Relating Family to Species?
Replies: 7
Views: 19060

Access table for Relating Family to Species?

Has anyone created a table of tree family names that could be related to the species master list?

I'm wanting a family name for each of our inventory trees.

Thanks

Rich