New Hampshire's Forests 2007

Abstract

The fi rst full annual inventory of New Hampshire's forests reports nearly 4.8 million acres of forest land with an average volume of nearly 2,200 cubic feet per acre. Forest land is dominated by the maple/beech/ birch forest-type group, which occupies 53 percent of total forest land area. Fifty-seven percent of forest land consists of large-diameter trees, 32 percent contains medium-diameter trees, and 11 percent contains small-diameter trees. The volume of growing stock on timberland has been rising since the 1980s and currently totals nearly 9.5 billion cubic feet. The average annual net growth of growing stock on timberland from 1997 to 2007 is approximately 164 million cubic feet per year. Additional information is presented on forest attributes, land use change, carbon, timber products, and forest health. Detailed information on forest inventory methods and data quality estimates is included in a DVD at the back of the report. Tables of population estimates and a glossary are also included.

Forests of Vermont and New Hampshire 2012

“…19). Since 1983, forest land area in the moderately and fully stocked classes for all live trees and growing-stock trees has increased, and at the same time, overstocked area has decreased in both States (Morin et al 2011a(Morin et al , 2011b. However, since 2007, the distribution of forest land area among stocking classes has remained stable ( acres) and 1.9 times greater in New Hampshire (517,000 to 268,000 acres).…”

“…In previous reports on IPS for Vermont and New Hampshire which covered the 2007-2008 P2 invasive plot data (Morin 2011a(Morin , 2011b, 10 of the invasive species monitored were observed. In the 2012 inventory, the number of IPS observed on P2 invasive plots increased to 16.…”

“…The largest positive changes in growth-to-removals ratio between 2007 and 2012 were in eastern white pine (0.8 to 1.8), northern red oak (2.4 to 7.5), eastern hemlock (1.2 to 3.4), and American beech (1 to 2.7). By contrast, sugar maple (2.3 to 1.2) and sweet birch (8.2 to 1.5) had large negative changes in growth-to-removals ratio (Morin et al 2011b). …”

“…Previous forest inventories in Vermont were completed in 1948 (McGuire and Wray 1952), 1965(Kingsley and Barnard 1968(Frieswyk and Malley 1985b, Kingsley 1977(Frieswyk and Malley 1985b, Frieswyk and Widmann 2000b), 1997 (Frieswyk and Widmann 2000b), and 2007 (Morin et al 2011a). Previous forest inventories in New Hampshire were completed in 1952 (U.S. Forest Service 1954), 1960 (Ferguson and Jensen 1963(Frieswyk and Malley 1985a, Kingsley 1976(Frieswyk and Malley 1985a, Frieswyk and Widmann 2000a(Frieswyk and Widmann 2000a, and 2007 (Morin et al 2011b). The annualized system was implemented in Vermont in 2003 and in New Hampshire in 2002 to provide updated forest inventory information every year based on a 5-year cycle.…”

Fifty-Six Years of Forest Development Following the 1938 Hurricane in Hillsborough, New Hampshire, USA

“…Over time shade-tolerant species (eastern hemlock, sugar maple, American beech) have become established as a key component of stands at Fox despite management activities that favored the removal of beech. Across the state, growing stock increased for eastern hemlock, northern red oak, sugar maple, red maple, and eastern white pine from 1983 to 2007 [35,36].…”