Lower Wisconsin GMU

Below are statistics, charts and general information on the Lower Wisconsin GMU. All chart and map links open in a separate window.

The Lower Wisconsin GMU is highly agricultural with 38% of the total land area in timberland. Most of this is on ridge tops and slopes.

Forest acreage

The area of timberland in the Lower Wisconsin GMU has decreased by about 28,000 acres or 3% in the last decade. The most recent survey (2001-2005) indicates that productive forest land makes up about 900,000 acres or 38% of the total land area of the GMU.
View bar chart: Timberland acreage in the Lower Wisconsin GMU

Forest types

Oak-dominated forest types (white oak/red oak/hickory, white oak, and northern red oak) account for 50% of timberland acreage in the Lower Wisconsin GMU. Hard maple-dominated types make up 21% and bottomland types such as sugarberry/hackberry/elm/green ash, silver maple/American elm and black ash/American elm/red maple make up another 9%.
View bar chart: The most important forest types in the Lower Wisconsin GMU

Growing stock volume

Total growing stock volume in the Lower Wisconsin GMU is 1.2 billion cubic feet. Northern red and white oak each account for about 14% of volume. All oak species together account for 36% of growing stock volume.

Ratio of growth to removals

Net annual growth (48.6 million cubic feet) in the Lower Wisconsin GMU exceeded annual removals (16.3 million cubic feet) by 198%. Annual growth accounted for about 4.1% of standing volume.

Habitat type

Over ¾ of the timberland in the Lower Wisconsin GMU is classified as either dry mesic, dry mesic-mesic or mesic. Very little timberland is categorized as either very wet or very dry.
View pie chart: Major habitat types in the Lower Wisconsin GMU

Timberland ownership

Timberland in the Lower Wisconsin GMU is mostly privately owned with 9% belonging to the state and 1% to the Dept of Energy.
View pie chart: Ownership of Timberland in the Lower Wisconsin GMU