Many of the interpretive keys used for soil disturbance hazard assessment require knowledge of soil conditions to 90 cm. Note Information on depth, texture, and coarse fragment content is normally collected for all the horizons and is required information for the soil disturbance hazard assessments. Record the actual depth of the soil pit for future reference or in defense of determined soil disturbance hazard ratings.

Items 27 to 38 may be used to collect and record information relating to the soil pit. Local soil survey maps and reports can be helpful in explaining the kinds of soil development and horizons that are found in the area.Īt each detailed sample plot, dig a soil pit to a depth adequate to accurately assess the soil disturbance hazards. Also, tThe surveyor should consult any reports prepared in conjunction with a development plan (i.e., terrain stability and geotechnical reports, community watershed assessments, stream classification reports, gully assessments, etc.). prescription requirements for any given site before beginning field data collection, since gathering too much non-relevant information can be almost as costly as repeated field trips to gather additional information.

The legal SP soil description requirements vary according to geographic area, proximity to a community watershed, and terrain. For areas where ground-based harvest systems are proposed, the most important data to be collected is the soil information necessary to complete the legally required soil disturbance hazard ratings. SIL411, Prescriptions Field Methods Book SIL411, Prescriptions Field Methods BookĬorrect soil identification and description is critical for an effective SP.

A horizon definition soil