Sampling Criteria Chart: Minimum Required Sampling for Estimated Pools

Carbon Pool
Required Pool
Name of Requirement
Description of Requirement
Tree Biomass
Yes
Diameter (breast height) measurements  
Stated minimum diameter in methodology not to be greater than 3 inches.
Measurement Tools
Description of tools used for height, diameter, and plot measurement.
Measurement Standards
The methodology shall include a set of standards for height and diameter measurements.
Stratification Design
A description of the rules used to stratify the vegetation.
Plot Layout
A description of plot layout.
Merchantability of Trees
The methodology shall include all trees regardless of current merchantability to be included in the sampling design.
Allometric Equation used for Estimating Biomass
The methodolgy will include a description of the allometric equation used to estimate the whole tree biomass (bole, branches, leaves, and roots) from bole diameter measurements. Any diversion from the provided equation will need to be approved by the Registry.
Herbaceous Understory
No
Sampling Methodology
The Registry recomments the sampling methodology prepared by Brown et. al (2004). This methodology is referenced in Annex E. Alternative methodologies will need to be reviewed and approved by the Registry.
Standing Dead Biomass
Yes
Diameter (breast height) and top Diameter Measurements
Stated minimum breast height diameter in methodology not to be greater than 3". Description of how top diameter is derived.
Measurements Tools
Description of tools used for height measurement, diameter measurement, and plot measurement.
Measurement Standards
The methodology shall include a set of standards for height and diameter measurements.
Plot Layout
A description of plot layout (May be the same layout for Tree Biomass).
Merchantability of Trees
The methodology shall include all trees regardless of current merchantability to be including in the sampling design.
Litter and Duff
No
Sampling Methodology
The Registry recommends the litter and duff methodology prepared by Brown et. al (2004). This methodology is referenced in Annex E. Alternative methodologies will need to be reviewed and approved by the Registry.
Lying Dead Biomass
Yes
Diameter
Stated minimum average diameter in methodology not to be greater than 6" for pieces of dead wood at least 10" in length. If the average diameters is greater than 16", the minimum length for reporting not greater than 6". Anything not meeting the measurement criteria for lying dead wood will be considered litter, an optional category.
Measurement Tools
Description of tools used for length measurement, diameter measurement, and plot measurement.
Measurement Standards
The methodology shall include a set of standards for height and length measurements.
Plot Layout
A description of plot layout (May be the same as the layout for Tree Biomass).
Merchantability of Trees
The methodology shall include all trees regardless of current merchantabilty to be included in the sampling design.
Density by Decay Class
Description of methodology used to derive density estimates for each species (group) by density class.

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