Resources for College of Natural Resources and Environment
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) | ||
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) | ||
Sustaining America's Aquatic Biodiversity - Turtle Biodiversity and Conservation | Turtles are freshwater, marine, and terrestrial
vertebrates with a shell. There are about 300
living species worldwide in 12 families and
about 89 genera. Of these, eight species are marine,
49 are land, and about 250 are freshwater to semiaquatic. |
Mar 19, 2020 | 420-529 (CNRE-89P) | ||
Sustaining America's Aquatic Biodiversity - Freshwater Snail Biodiversity and Conservation | Six hundred fifty different species of snails are
widely distributed across the streams, rivers,
and lakes of North America. There are unique
species associated with every type of aquatic habitat
from the Canadian Arctic to the Everglades of
Florida. |
Nov 5, 2019 | 420-530 (CNRE-76P) | ||
Whitethorne Agroforestry Research and Demonstration Site at Virginia Tech’s Kentland Farm | Jul 17, 2017 | ANR-277 |