What are Land Surveyors?

Land surveying is the work of surveying and mapping the characteristics of the quantity and distribution of various types of land using surveying and remote sensing techniques. Including topographic survey, cadastral survey, land leveling survey, land use status survey, barren mountain and wasteland reserve resources survey, etc. The survey methods used include geodesy, general survey, aerial photogrammetry, remote sensing technology and mapping. With the gradual completion of the national basic topographic map, land surveying mainly refers to other content than topographic survey, and all measurements are based on the national basic topographic map. ^[1]

Land is an important foundation for our survival and development, so it is very important to do a good job of land surveying. Today in the 21st century, with the advancement of society, science and technology are constantly developing, and the value of land consolidation is also increasing. Therefore, people's requirements for surveying and mapping technology in land surveying are also increasing. ^[2]

1. Theodolite and steel rule measurement method In order to solve the difficulties encountered in irregular parcels, theodolite was used to help the measurement. Based on the first method, the theodolite is fixedly mounted at each inflection point on the parcel, the angle is measured, and the area of the parcel is calculated by combining the length measured by the steel ruler.

2. With the continuous development of the production and construction of the total station, the total station is introduced to meet the requirements of the development of the times. This instrument provides a convenient and applicable area measurement function. It has the greatest advantages compared to theodolites. That is, it is no longer necessary to mount the instrument at various inflection points on the parcel.

The characteristics of the GPS / BD measurement system can overcome the influence of many unfavorable factors such as terrain, climate, season, and difficulty in viewing. The positioning accuracy is high, and the data is safe and reliable. Easy to operate and easy to use. It does not require high operating conditions, strong data input, processing, and storage capabilities, and convenient communication with computers and other measuring instruments. Fewer operators, fast positioning speed and high comprehensive benefits.

With the wide application of differential satellite positioning technology,

In recent years, due to the popularity of computers and the continuous upgrading of surveying and mapping technology, the current mapping method is efficient, fast, and intuitive. As long as the data collected in the field is input to a computer and then edited using professional drawing software, it can be based on Users need to output color or black and white graphics in a plotter.

1. If the topographic map of the land development and consolidation project meets rural residential areas, only the peripheral lines of the village will be surveyed, and the village name will be marked inside;

2. The survey content of land development and consolidation not only includes the two major elements of topographic survey, but also it must meet the requirements of land planning and design.

3. For the planning and design of land development and consolidation projects, an elevation note must be marked on each mound on the topographic map.

4. At the completion survey of the land development and consolidation project, attention should also be paid to the measurement of the completion boundary should be accurate and combined with the planning and design of the project area for a comparative inspection to verify that it is consistent with the planning scope of the land development and consolidation project.