Forest and conservation workers measure and improve the quality of forests. Under the supervision of foresters and forest and conservation technicians, they help to develop, maintain, and protect forests.
Forest and conservation workers typically do the following:
Forest and conservation workers are often supervised by foresters and forest and conservation technicians, who direct their work and evaluate their progress.
They do basic tasks to maintain and improve forest quality, such as planting seedlings or removing diseased trees. To plant seedlings, they use digging and planting tools. To cut trees, they use handsaws or power saws.
Some forest workers work on tree farms, where they plant, cultivate, and harvest many different kinds of trees. Their duties vary with the type of farm and may include planting seedlings, spraying to control weed growth and insects, and harvesting trees.
Some forest and conservation workers work in forest nurseries, where they sort through tree seedlings, discarding those that don't meet standards. Others use hand tools or their hands to gather woodland products, such as decorative greens, tree cones, bark, moss, and other wild plant life. Some may tap trees to make syrup or chemicals.
Forest and conservation workers who are employed by or under contract with state and local governments may clear brush and debris from trails, roadsides, and camping areas. They may clean kitchens and rest rooms at recreational facilities and campgrounds.
Workers with a fire protection background also help to prevent fires. For example, they may construct firebreaks, which are gaps in vegetation that can help slow down or stop the progress of a fire. They also may work with technicians to study how quickly fires spread and how successful fire suppression activities were. For example, workers help count how many trees will be affected by a fire. They also sometimes respond to forest emergencies.
Surveyors establish land, airspace, and water boundaries. They measure the Earth's surface to collect data that are used to draw maps, determine the shape and contour of parcels of land, and set property lines and boundaries. They also define airspace for airports and measure construction and mining sites. Surveyors work with civil engineers, landscape architects, and urban and regional planners to develop comprehensive design documents.
Surveyors typically do the following:
Surveyors guide construction and development projects and provide information needed for the buying and selling of property. In construction, surveyors determine the precise location of roads or buildings and proper depths for foundations and roads. Whenever property is bought or sold, it needs to be surveyed for legal purposes.
In their work, surveyors use the Global Positioning System (GPS), a system of satellites that locates reference points with a high degree of precision. Surveyors interpret and verify the GPS results. They gather the data that is fed into a Geographic Information System (GIS), which is then used to create detailed maps.
Surveyors take measurements in the field with a crew, a group that typically consists of a licensed surveyor and trained survey technicians. The person in charge of the crew (called the party chief) may be either a surveyor or a senior surveying technician. The party chief leads day-to-day work activities. For more information, see the profile on surveying and mapping technicians.
Some surveyors work in specialty fields to survey particular characteristics of the Earth. Examples include the following:
Geodetic surveyors use high-accuracy techniques, including satellite observations, to measure large areas of the Earth's surface.
Geophysical prospecting surveyors mark sites for subsurface exploration, usually to look for petroleum.
Marine or hydrographic surveyors survey harbors, rivers, and other bodies of water to determine shorelines, the topography of the bottom, water depth, and other features.
Construction equipment operators drive, maneuver, or control the heavy machinery used to construct roads, bridges, buildings, and other structures.
Construction equipment operators typically do the following:
Construction equipment operators use machinery to move construction materials, earth, and other heavy materials at construction sites and mines. They operate equipment that clears and grades land to prepare it for construction of roads, bridges, and buildings, as well as airport runways, power generation facilities, dams, levees, and other structures.
The following are types of construction equipment operators:
Operating engineers and other construction equipment operators work with one or several types of power construction equipment. They may operate excavation and loading machines equipped with scoops, shovels, or buckets that dig sand, gravel, earth, or similar materials. In addition to operating the familiar bulldozer, they operate trench excavators, road graders, and similar equipment. Sometimes, they may drive and control industrial trucks or tractors equipped with forklifts or booms for lifting materials. They also may operate and maintain air compressors, pumps, and other power equipment at construction sites.
Paving and surfacing equipment operators control the machines that spread and level asphalt or spread and smooth concrete for roadways or other structures. Paving and surfacing equipment operators may specialize further:
Piledriver operators use large machines mounted on skids, barges, or cranes to hammer piles into the ground. Piles are long, heavy beams of wood or steel driven into the ground to support retaining walls, bridges, piers, or building foundations. Some piledriver operators work on offshore oil rigs.
Some workers operate cranes to move construction materials. For more information on these workers, see the profile on material moving machine operators.
Cement masons pour, smooth, and finish concrete floors, sidewalks, roads, and curbs. Using a cement mixture, terrazzo workers create durable and decorative surfaces for floors and stairways.
Cement masons typically do the following:
Terrazzo workers typically do the following (in addition to what cement masons do):
Concrete is one of the most common and durable materials used in construction. Once set, concrete--a mixture of cement, sand, gravel, and water--becomes the foundation for everything from decorative patios and floors to huge dams or miles of roadways.
The following are types of cement masons and terrazzo workers:
Cement masons and concrete finishers place and finish concrete. They may color concrete surfaces, expose aggregate (small stones) in walls and sidewalks, or make concrete beams, columns, and panels.
Throughout the process of pouring, leveling, and finishing concrete, cement masons must monitor how the wind, heat, or cold affects the curing of the concrete. They must have a thorough knowledge of the characteristics of concrete so that, by using sight and touch, they can determine what is happening to the concrete and take measures to prevent defects.
Terrazzo workers and finishers create decorative walkways, floors, patios, and panels. Although much of the preliminary work in pouring, leveling, and finishing concrete is similar to that of cement masons, terrazzo workers create more decorative finishes by blending a fine marble chip into the cement, which is often colored. Once the terrazzo is thoroughly set, workers correct any depressions or imperfections with a grinder to create a smooth, uniform finish.
Landscape architects plan and design land areas for parks, recreational facilities, highways, airports, and other properties. Projects may include subdivisions and commercial, industrial, and residential sites.
Landscape architects typically do the following:
People enjoy attractively designed gardens, public parks, playgrounds, residential areas, college campuses, and golf courses. Landscape architects design these areas so that they are not only functional but also beautiful and harmonious with the natural environment.
Landscape architects plan the locations of buildings, roads, and walkways. They also plan where to plant flowers, shrubs, and trees. Landscape architects design and plan the restoration of natural places disturbed by humans, such as wetlands, stream corridors, and mined areas.
Many landscape architects specialize in a particular area, such as beautifying or otherwise improving streets and highways, waterfronts, parks and playgrounds, or shopping centers.
Increasingly, landscape architects are working in environmental remediation, such as preserving and restoring wetlands or managing storm-water runoff in new developments. They are also increasingly playing a role in preserving and restoring historic landscapes.
Landscape architects who work for government agencies do design sites and landscapes for government buildings, parks, and other public lands, as well as plan for landscapes and recreation areas in national parks and forests.
In addition, they prepare environmental impact statements and studies on environmental issues, such as planning for use of public lands.