belowground biomass estimation

By Dipesh K.C. - 2/27/2008

i am conducting a belowground biomass estimation using minirhizotrons (in which a camera will be fixed to take the images of the roots) and a software for estimating the biomass. However, I am unsure to calculate the root turnover (biomass of dead roots). The sampling interval will be 2-3 weeks and within this interval, it is possible that some fine roots (<2mm in diameter) will die and the biomass will be underestimated. Can anyone suggest me to overcome this problem?

Comments (4)

Anonymous's picture
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Are you going to uproot the

Are you going to uproot the roots? As you are using minirhizotrons, i hope you are not uprooting them. So, where does this issue of root dying arise? will yo explain?

 
Anonymous's picture
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I was wrong. I now

I was wrong. I now understand fine roots do die in minirhizotrons. I think you should somehow take into account the survivorship of the fine roots for you species in your estimation to account for fine root dying. See following papers;

Tierney G.L./ Evaluating minirhizotron estimates of fine root longevity and production in the forest floor of a temperate broadleaf forest

M. G. Johnson/ Advancing fine root research with minirhizotrons

Jennifer M. Withington/ The impact of material used for minirhizotron tubes for root research

 
freeleWag's picture
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please delete this topic

please delete this topic

 
Fevabence's picture
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I am quite completely new to

I am quite completely new to this kind of blog conversation thing but Im willing to help and learn a good deal, I really hope. In particular in regards wellness and the particular areas of nutrition and in my case training.

Anyway, just saying hi and hope to be around for a while.

 

About the author

Dipesh's picture

Full Name
Dipesh K.C.

Position
Graduate Research Assistant

Organization
University of Arkansas at Monticello

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