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Using steady-state mass balance model to determine critical loads of acidity for terrestrial ecosystems in Alberta

Description

Benchmarks for atmospheric deposition of acidifying substances for terrestrial ecosystems in Alberta were developed using the steady-state mass balance (SSMB) model. The SSMB model considers both biological response and soil buffering capacity. Alberta soil characteristics, dominant vegetation cover, run off, biomass harvest and grazing, base cation deposition and the impact of wildfires are used to derive these benchmarks or critical loads of acidity for sulphur and nitrogen deposition. This document provides critical load values necessary for acid deposition assessments carried out under the revised 2022 Acid Deposition Management Framework for Alberta. The report outlines the methods used to determine these critical load values and is a companion document to the revised framework.

Updated

May 17, 2022

Tags
acid deposition acid deposition management acid rain critical loads of acidity soil acidification steady-state mass balance model

Title and publication information

Type
Report
Frequency

Once

Publisher / Creator Information

Publisher

Environment and Parks

Contributor

Aklilu Y-A

Contributor

Blair L.

Contributor

Dinwoodie G.

Contributor

Aherne J.

Place of Publication

Edmonton

Resource Dates

Date Created

2022-05-17

Date Added

2022-05-13T20:04:19.302590

Date Modified

2022-05-17

Date Issued

2022-05-17

Audience information

Identifiers

Usage / Licence

Contact

Contact Name

Alberta Environment and Parks. Airshed Sciences, Resource Stewardship Division