Regulations on field investigation maps for land investigation and evaluation in Vietnam in Vietnam

Regulations on field investigation maps for land investigation and evaluation in Vietnam in Vietnam  (Image from the internet)

Regulations on field investigation maps for land investigation and evaluation in Vietnam

(1) Regulations on field investigation maps in Vietnam

a) The field investigation maps for investigating and evaluating land quality, land degradation, and land pollution nationwide and regionally are created based on the land use status maps at provincial level for the same period;

b) The field investigation maps for investigating and evaluating land quality and land degradation at the provincial level are created based on the land use status maps at the district level for the same period;

c) The field investigation maps for investigating and evaluating land pollution at the provincial level are created for each polluted land area depending on the impact range of the pollution source, based on the land use status maps at the commune level for the same period at scales from 1:2,000 to 1:5,000, or at the district level for the same period at scales from 1:10,000 to 1:25,000 for areas investigating and evaluating land pollution covering 2 or more communes.

(2) Regulations on the Content of field investigation Maps

- Elements inherited from land use status maps include: the group of mathematical base classes and related contents; the group of border and boundary classes; the group of topography classes; the group of transportation, hydrology, and related objects; the group of socio-economic object classes; the group of land use status classes;

- Boundaries for zoned land for investigating land quality and land potential; land degradation; land pollution. The boundary symbol for zoned land investigation is displayed according to the regulations in Section 2, Part B of Appendix I issued with Circular 11/2024/TT-BTNMT.

The smallest area of zoned land is determined based on the actual boundary of the zoned land and the map scale. Specifically:

- Labels for zoned land investigation

The labels for investigating land quality and land degradation display investigation information in the order: abbreviated symbols of place names; serial numbers of zoned land (displayed in Arabic numerals, from 01 to the end within the investigation scope, numbered from left to right, top to bottom); symbol of soil type; symbol of topography.

The labels for investigating land pollution at the regional level display investigation information in the order: abbreviated symbols of place names; serial numbers of zoned land (displayed in Arabic numerals, from 01 to the end within the investigation scope, numbered from left to right, top to bottom); symbol of soil type, name of the administrative unit at the commune level.

The labels for investigating land pollution at the provincial level display investigation information in the order: abbreviated symbols of place names; serial numbers of zoned land (displayed in Arabic numerals, from 01 to the end within the investigation scope, numbered from left to right, top to bottom); symbol of soil type; symbol of pollution source.

- The position of the investigation points on the field investigation map is displayed as points;

- Map name, map scale, constructing unit, and legend (including: symbols of inherited elements from land use status maps, zoned land investigation boundary, zoned land investigation labels, and investigation point symbols).

>> CLICK HERE TO READ THIS ARTICLE IN VIETNAMESE