Work with us as a Enhanced Weathering in Agriculture supplier

We've combined requirements from our modular protocol framework outlining everything you need to be validated as a Enhanced Weathering in Agriculture supplier.

We provide further support to compile a compliant validation package on our platform, Isometric Certify.

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Overview

Where do requirements come from?

Isometric Standardv1.5.1->Enhanced Weathering in AgricultureProtocolv1.1->

List of Enhanced Weathering in Agriculture requirements

Table of contents

Project setup

Essential project details including who's involved, the location of your project, and how much carbon will be removed.

Environmental & social impacts

How will your project affect people and nature, and how will you manage any risks that arise.

Pathway-specific

How will your project meet pathway-specific process requirements.

Projects must describe and evidence their in-field monitoring approach.

If the project is unable to maintain a control plot(s) representing at least a 2.5% control area, they must provide relevant justification and evidence.

Projects exceeding a total project area of 1,000 hectares must describe the location and design of the research plot(s).

Projects must provide detailed information on field management practices prior to feedstock deployment, including information on crop types and rotation cycles, productivity levels of the agricultural land, irrigation, tillage and fertilizer use.

Projects must provide climatic monitoring data from the project area (including rainfall, temperature, humidity, wind speed and solar radiation data), and describe the approach to gathering this data.

Projects must describe the soil sampling and compositing procedure used.

Projects must describe the statistical approach taken for crediting.

Projects must describe the number of soil samples to be taken, monitoring cadence, and sampling routine used.

Projects must describe the baseline soil sampling approach taken to establish the soil baseline, in particular with regards to the requirement to quantify heterogeneity in the soil characteristics most relevant to EW, including pH, soil texture, soil permeability, cation exchange capacity (CEC) and base saturation.

Projects must provide any additional information on how soil parameters are characterized in baseline and post-application samples.

Projects must describe their approach to determining the feedstock-based alkalinity applied to a field during a deployment.

Projects must provide details of the total digestion and measurement methods used to measure cation concentrations.

Projects must describe how the amount of cations sorbed by soil are calculated and considered in overall carbon accounting. Outline the chosen extraction procedure for both CEC and base saturation, including post-extraction analysis, and provide justification for this choice.

Projects must outline the approach taken to constrain the time between when weathering occurs and when bicarbonate is exported to the watershed. Typical approaches may include extrapolation of the upper soil column or geochemical models, e.g., a reactive transport model.

Projects must describe how secondary alteration products (e.g., clay minerals) formation is investigated. While secondary clay formation is difficult to quantify and will not currently be counted towards CDR quantification, it is an important consideration for CDR potential. Describe the analytical approach and the refinement or fitting techniques used to interpret the data.

Projects should describe if and how short-term soil carbon cycling is measured, specifying if gas flux chambers or eddy covariance towers are used, with what sampling density, and how data is collected.