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Biomass Estimation from DBH-How to

Added by Ghimire Suman about 4 years ago

Dear All,
I am new to this topic of Biomass Estimation. I have calculated DBH using Computree. Now i am confused on what to do further. If anyone has some knowledge please share it with me. I would be really thankful to you guys.

Thank you very much

Regards,
Suman


Replies (5)

RE: Biomass Estimation from DBH-How to - Added by Ghimire Suman about 4 years ago

I was hoping to see some replies.

RE: Biomass Estimation from DBH-How to - Added by Hackenberg Jan about 4 years ago

We are working on a plugin to estimate the total volume directly, unfortunately it is not finished yet.

What you can do with DBH:

In forestry or more general spoken in Biology you can estimate difficult to obtain variables (the Biomass) from easy to obtained variables (the DBH, often also in addition with the height) from statistical derived functions. You can get those functions - called allometrical functions - for example from this homepage:
http://globallometree.org/

You can get some further citations on this topic from this pub, they are given in the introduction:
http://www.mdpi.com/1999-4907/5/5/1069

The method presented here is the one I spoke about to be implemented, but it will take at least two more months until it will be available... Until its done you have to live with the allometric approach. If you work with common species you will find the functions on the given homepage. In various forms. I am not specialist in this field, but people who are more into it recommending in general the functions who take both DBH and height into account.

Cheers
Jan

RE: Biomass Estimation from DBH-How to - Added by Ghimire Suman about 4 years ago

Dear Jan,
Thank you so much for your reply. I highly appreciate it. Jan , i wanted to ask you about the voxel under the plugin base. Can we find the volume manually through it. Also there are crowns segmentation. What can be done through it?

I was curious to know if i perform regression analysis on plots and find a model. How can i apply it through the entire project area? The instrument i am using is Faro Focus 3D( Terrestial Laser Scanner)

Thank you very much.

I Look forward to hear from you

Regards,
Suman Ghimire
Nepal

RE: Biomass Estimation from DBH-How to - Added by Hackenberg Jan about 4 years ago

Sorry
purely am focused for now on the development with my plug-in and just exploring the computree platform from a developer perspective. That means I have zero knowledge about other plug-ins... Will have to learn here too, but cannot answer anything related to other plug-ins for now.
You need to get help by others...

Gn8
Jan

RE: Biomass Estimation from DBH-How to - Added by Ghimire Suman about 4 years ago

It’s okay. I hope some people reply to this post. I didn’t find any documentation related to applying the model from regression analysis of the plot to the entire project area.

Anyways, Your reply meant a lot to me specially when i am stuck with deadlines on finishing my undergraduate thesis. Thanks a lot bro.

Regards,
Suman

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