Pesticides Chemical substances, either liquid or granular, that are used for the control or eradication of undesirable insects, disease, vegetation, animals and other organisms. Herbicides, Insecticides, Fungicides and Nematicides are all considered
Pollutants Natural or man-made waste material that contaminates air, soil, or water.
Public Lands Those lands which are wholly owned and managed by any unit of local, regional, state or federal government. Lands not wholly owned (i.e., lease, wildlife management agreement, easement, life estate, purchase agreement, etc.) may limit the terms of control by a unit of government.
Raking Component of site preparation in which trees, stumps, roots, and logging slash are piled and/or pushed into windrows by tractors equipped with customized blades with rake tines across the bottom.
Refuse Inorganic waste materials such as metal, rubber, plastic, and glass.
Regeneration The young tree crop that either artificially or naturally follows a stand of older trees removed by harvest and/or disaster.
Rip-rap Aggregate material placed on potentially erodible sites to reduce the impact of rain or surface runoff on these areas.
Rotation The period of time required to establish, grow, and harvest a crop of trees at a specified stage of maturity. |
Sediment Soil particles which have been detached and transported by water during the process of erosion.
Seed Tree Cut Method of timber harvesting that provides for the natural regeneration of a site by leaving single, or small groups of, seed-bearing trees distributed throughout the harvest area.
Selection Cut Removal of select trees within a forest stand based on some economic or physiological criteria. Generally results in uneven aged stands.
Shelterwood Cut Removal of mature timber within a forest stand in a series of harvests which extend over a relatively short portion of the rotation in order to encourage the establishment of essentially even-aged reproduction under the partial shelter of seed trees.
Silvicultural System A process, following accepted forest management principles, whereby the crops constituting forests are tended, harvested and reproduced.
Site Preparation Measures employed on a site to dispose of debris, reduce competitive vegetation, and prepare the soil for artificial or natural regeneration.
Site Preparation (Prescribed) Burning The silviculture practice of using regulated fires to reduce or eliminate debris and vegetation in preparation for tree planting.
Site Sensitivity Class (SSC) An index of an area’s susceptibility to erosion and sediment production, based on soil type and slope. |
