Resources by Jennifer Gagnon
Title | Available As | Summary | Date | ID | Author |
---|---|---|---|---|---|
Measuring Site Index | Site index (SI) is a measurement commonly used by
foresters to describe the productivity of a site. Typically
this measurement is used to describe sites growing
well-stocked even-aged forests. Site index is the average
height of the dominant1 and codominant2 trees on the
site, at a given age (base age). Typically, the base age for
hardwoods and white pine in Virginia is 50 years, while
the base age for loblolly pine is 25 years. For example, a
SI of 75, base age 50, means that the average height of
the dominant and codominant trees on a site will be 75
feet when they are 50 years old (SI50=75). The higher the
SI, the higher the site productivity (trees will grow faster
than on a site with a lower SI). |
Apr 30, 2020 | 2812-1028 (CNRE-96NP) | ||
Measuring Site Index | Site index (SI) is a measurement commonly used by
foresters to describe the productivity of a site. Typically
this measurement is used to describe sites growing
well-stocked even-aged forests. Site index is the average
height of the dominant1 and codominant2 trees on the
site, at a given age (base age). Typically, the base age for
hardwoods and white pine in Virginia is 50 years, while
the base age for loblolly pine is 25 years. For example, a
SI of 75, base age 50, means that the average height of
the dominant and codominant trees on a site will be 75
feet when they are 50 years old (SI50=75). The higher the
SI, the higher the site productivity (trees will grow faster
than on a site with a lower SI). |
Apr 30, 2020 | 2812-1028 (CNRE-96NP) | ||
Forest Landowner’s Guide To The Measurement Of Timber And Logs | As a forest landowner interested in selling timber, you are naturally interested in the price you will receive for your product and how that price is determined. The measurement of standing timber and logs may seem strange and complicated to you, and it is possible that you may be quoted dramatically different prices based upon differing estimates of the amount of timber you have and the units of measurement used. Methods of measuring timber and the units of measurement often differ between buyers, and, as a seller, you should have an understanding of these methods, the units of measurement, and an idea as to a reasonable price for your timber. |
Jul 13, 2020 | 420-085 (CNRE-103P) | ||
Timber Theft in Virginia | Forestland can provide countless hours of recreational
benefits as well as an important source of income. Many
landowners take careful steps to ensure that their property
is managed to maximize the benefits they receive.
However, all of this work can be easily eradicated by one
of Virginia’s most dreaded forest pests: timber thieves. |
Sep 14, 2020 | 420-136 (CNRE-117NP) | ||
Sustainable Forestry: A Guide for Virginia Forest Landowners | Feb 2, 2023 | 420-139 (CNRE-156P) | |||
Exotic Invasive Plants | Invasive exotic species are plants that are not native to
a given area and have the ability to out-compete indigenous
plant species. Invasive exotics are often brought
into their non-native surroundings by humans with
good intentions. |
Apr 29, 2020 | 420-320 (CNRE-105NP) | ||
Invasive Exotic Plant Species: Autumn Olive (Elaeagnus umbellata) | Autumn olive was introduced to the U.S. from Japan and
China in 1830. It was originally planted for wildlife habitat,
shelterbelts, and mine reclamation, but has escaped
cultivation. It is dispersed most frequently by birds and
other wildlife, which eat the berries. |
Apr 28, 2020 | 420-321 (CNRE-97P) | ||
Invasive Exotic Plant Species: Honeysuckle (Lonicera spp.) | Several species of Asian honeysuckle have been introduced
in the United States for their ornamental and
wildlife values. Honeysuckle is perhaps the most widespread
exotic invasive in the U.S., now found in at least
38 states. The Asian honeysuckle produces abundant
seeds which are dispersed by birds and other wildlife.
It also spreads by sprouting from its roots. Because it
tolerates shade from other plants, it grows in forest
understories. |
Apr 1, 2020 | 420-323 (CNRE-95P) | ||
Characteristics of Common Western Virginia Trees | Forest management is a complex process. Silviculture—a system in which healthy communities of trees and other vegetation are established and maintained for the benefit of people—uses forest ecology to guide complex management prescriptions that mimic forest disturbances and processes.
Silvics—the natural characteristics of trees—play an important role in prescribing effective silviculture. |
May 20, 2020 | 420-351 (ANR-118NP) | ||
Forests of Virginia: Importance, Composition, Ecology, Threats, and Management | Mar 4, 2016 | 465-315 (ANR-163P) | |||
Welcome to the Woods! A Guide for New Virginia Woodland Owners | We all depend on and benefit from the woods every
day, whether we know it or not. The trees, shrubs, plants,
animals, and soil that make up your woods provide
you, your neighbors, and your region with a host of
environmental, social, and economic benefits. |
Dec 19, 2023 | ANR-136P (CNRE-173P) | ||
So You Want To Sell Timber | Research into the attitudes and actions of private forest
landowners shows that although very few own their
forestland for the purpose of producing timber, most
will sell timber at least once in their lifetimes. Private
forest landowners sell timber for a variety of reasons
that range from purely financial to solely for management
purposes. Often landowners do not consider selling
timber until they have an immediate need for cash.
Other times the landowner has planned an immediate
commercial thinning with a full timber harvest scheduled
in 10 years. Whatever the reason(s) for a timber
sale, careful consideration of objectives is paramount. |
Dec 5, 2023 | ANR-154P | ||
Timber Selling Tips: Forestry Fact Sheet for Landowners | Timber harvesting is a valuable tool to help forest
landowners realize certain financial and land management
goals. Following are some suggestions to
consider before selling timber. |
Dec 5, 2023 | ANR-155P | ||
Trees and Water | Since at least the late 1800s, scientists and forest managers in the United States have recognized that forests have strong influences on water resources (Hewlett 2003). Today the connections between forests and water are widely reported in the news media, promoted by natural resource agencies, and investigated by specialists such as hydrologists, dendrologists, foresters, forest biologists, and water managers. Tree structures and functions influence at least four major areas of water-resources concerns: (1) water quality, (2) aquatic habitat, (3) water quantity, and (4) the interactions among water, climate, and energy use. This publication provides a basic introduction to Virginia's trees and a foundation for assessing the connections between water and trees. |
Apr 24, 2024 | ANR-18NP (CNRE-179) | ||
The Role of Logging Business Owners in Forest Certification | Many forest products companies and landowners participate in forest certification programs. Forest certification programs set standards for sustainable forest management and verify that they are being met. Certification programs can demonstrate to consumers that certified forest products come from trees that were grown and harvested sustainably. |
Apr 29, 2024 | ANR-51NP (CNRE-35NP) | ||
How to Sell Timber | Apr 27, 2020 | CNRE-107NP | |||
Legacy Planning - A Guide For Virginia Landowners | Jan 12, 2021 | CNRE-121P (CNRE-175P) | |||
An Overview of Forest Carbon Credit Programs in Virginia | Woodland owners increasingly hear about opportunities to earn income by participating in emerging forest carbon markets. This publication provides an overview of these markets and introduces the carbon credit programs operating in Virginia. This information is intended to help Virginia’s woodland owners decide if taking part in a forest carbon credit program is a good fit for their management objectives. |
Apr 10, 2024 | CNRE-177P | ||
Guide to Threatened and Endangered Species on Private Lands in Virginia | This publication explains how landowners can determine if threatened and endangered animals, plants, or insects are present on their land. It also identifies who to contact, if present, to determine if forest management activities could have a negative impact on these species. Finally, it includes information on a number of voluntary programs private landowners can participate in. These programs facilitate active forest management while protecting threatened and endangered species. |
May 3, 2024 | CNRE-24NP (CNRE-178NP) |