STUDY-UNIT SURVEY

Broad assessment of the water-quality conditions of the major aquifer systems of each NAWQA Study Unit. The Study-Unit Survey relies primarily on sampling existing wells and, wherever possible, on data collected by other agencies and programs. Typically, 20 to 30 wells are sampled in each of three to five aquifer subunits.

STUMPAGE

The value or volume of a tree or group of trees as they stand uncut in the woods (on the stump).

STUMPAGE VALUE

Economic value of a standing tree, equivalent to the amount concessionaires earn when a log is sold to the sawmill or the exporter, less the cost of logging. It is used as the net-price valuation in environmental accounting.

SUB-NATIONAL ACTOR

Sub-national actors include state/provincial, regional, metropolitan and local/municipal governments as well as non-party stakeholders, such as civil society, the private sector, cities and other sub-national authorities, local communities and indigenous peoples.

SUBLIMATION

Change of a solid to a vapor (or the reverse) without the appearance of a liquid state.

SUBMERSED PLANT

A plant that lies entirely beneath the water surface, except for flowering parts in some species.

SUBMITTED

A mitigation project is considered “submitted” when all the appropriate formshave been completed, uploaded, and submitted to Climate Forward.

SUBMITTED PROJECT

A Project listed on the Capturiant Website as a that has not yet been Validated or Verified.

SUBNATIONAL JURISDICTION

An administrative- or other sub-unit within a country, such as a state, province, region, department, district, or an eco-region or other defined area, specified in the jurisdictional program description

SUBSIDENCE

Sinking of an area of the earth’s surface due to compaction of the underlying material.