Soil Bioengineering Methods

A library of plant-based methods for erosion, slope instability, streambank degradation, and mine reclamation, developed over 40 years of field practice in British Columbia.

Soil bioengineering is the use of living plant materials to perform an engineering function. A wattle fence of willow cuttings is a retaining wall that grows and deepens its own roots. A live pole drain is a French drain that also transpires moisture and establishes a row of trees. Rough and loose surface treatment is seedbed preparation that lets native pioneers colonize without any seeding at all.

The common thread is that these methods work with natural ecological processes rather than replacing them. Conventional engineering solves the immediate problem and stops; soil bioengineering solves it and then lets the ecosystem keep solving it, deepening roots and progressing toward a self-sustaining native community. The techniques below underpin our services.

Matching treatment to site is the most important step in any project. The right method depends on what is driving the problem, the moisture regime, the scale, and the substrate:

Most real sites have several problems at once, and the techniques combine readily, for example live pole drains to intercept seepage, wattle fences to terrace the slope above, and live staking throughout to accelerate revegetation. The right combination is a site-specific judgment, which is what our assessment provides.

The methods library now connects to practical support pages that help crews and planners move from theory to implementation.

We assess slope angle, moisture regime, soil type, disturbance history, and your restoration objectives, then recommend the right technique or combination.

Serving municipal governments, mining and resource companies, developers, First Nations, and provincial agencies across British Columbia.