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Questions related from Hormoz Sohrabi
I was searching for r packages for designing sample location for different sampling approaches like point, line, or plot sampling specially in forestry topic. I found fiesta and imfor, but...
27 October 2017 905 4 View
Acorn production is yearly variable and depend on so many ecological factors. For Oak species, Rose et al, 2012 showed that there is a weak relationship between DBH and acorn production. Also,...
01 March 2015 3,767 6 View
I am looking for a model for modeling the effects of varied forest management regimes on carbon dynamics under climate change. If this model take the satellite derived indices (such as NDVI) as...
03 February 2015 6,324 10 View
For some species like Fagus orientalis or Quercus spp, is it very easy to spot the borders of sapwood and do the measurements. But for some species, the sapwood area is not visually recognizable....
08 January 2015 7,038 5 View
Parresol 1999 and Parresol 2001 pointed out that biomass equations should be additive. He introduced two types of additive biomass equations: weighted seemingly unrelated regression (SUR) and...
08 January 2015 2,694 7 View
In Iran, we are selling harvested trees based on their volume. But volume measurements is not so precise. Instead, if we could sell the logs based on their weight, it can be simply done by loading...
04 January 2015 336 7 View
We have about 100 disks with diameter from 20 cm to 1.2 meter. We want to measure tree ring width for growth analyzes. We dont have access to lintab, so we are searching for a free software that...
21 December 2014 7,088 19 View
I am going to buy an unmanned aerial vehicle for my university for forestry applications. Since there are alot of options, I realy get confused to choose a proper model and a valid brand. Also, l...
23 November 2014 627 7 View
If you have two quantative factors (with interaction) with different level of each, with a given number of replication, what is the best way to analyze the data? It is obvious that we can use a...
17 November 2014 9,702 4 View
