Determining the Techniques of Surveying and Cadastral Mapping in Vietnam | Chapter 7 | Modern Advances in Geography, Environment and Earth Sciences Vol. 7

 In Vietnam, the measuring of cadastral maps, which is used for land administration, is currently very essential. In the past, cadastral maps in Vietnam were generally measured manually using an optical theodolite, and then the map was created on paper. Many technology applications are now employed in Vietnam to measure cadastral maps, thanks to the development of new technologies. However, electronic total station technology is the most prevalent method for measuring cadastral maps since it is ideal for Vietnamese topographical circumstances. In terms of land and area, the state government has to strengthen clearance, inspection, and land dispute settlement. In this method, the total station is used to measure directly in the field, after which we utilise specialist software such as MicroStation, FAMIS, and Pronet to manage the measurement data and alter the map. The cadastral mapping and measurement procedure for a specific area has reached a conclusion in this study. Cat Trinh Commune is located in the Phu Cat District of Binh Dinh Province, Vietnam. The survey network diagram with 425 points, including 24 high level cadastral points, and the finished cadastral map with a total area of 4865.20 ha were the end results. The cadastral map of Cat Trinh Commune consists of 63 sheets, with 45 map sheets in scale 1: 2000 and 18 map sheets in size 1: 1000. They were all saved as digital files on the computer as well as printed sheets. There are statistics tables of the land area of each object and the purpose of the land use in addition to the cadastral maps. This is an important document that will assist state agencies in managing land in a proper, practical, and uniform manner.

Author(S) Details

Truong Quang Hien
Faculty of Natural Sciences, Quy Nhon University, Vietnam.

Ma Cai Xue
College of Public Administration, Huazhong Agricultural University, China.

He Li Yuan
College of Resources and Environment, Huazhong Agricultural University, China.

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Studies on Soil Information System by Using Landsat TM and ASTER Images - Larrache - Morocco| Chapter 5 | Cutting-edge Research in Agricultural Sciences Vol. 13

A solid management strategy must start with a detailed awareness of the resources available. Soil is a nonrenewable natural resource that acts as a vital medium for all other living things. Having detailed soil parameters in digital format can help with improved management by allowing for more accurate crop allocation and administration of necessary fertilisers to each crop. Soil is a three-dimensional entity having qualities that reflect the influence of climate, plant, wildlife, man, and geography on the parent material of soil over time. Furthermore, soil digital information will promote sustainable land use by allowing crops to be distributed depending on soil fertility, so saving money, effort, and time during the production cycle. There are many tools available; Remote Sensing (RS) and Geographic Information Systems (GIS) are two of the most important instruments used in the development of digital spatial soil information, which is reinforced by thorough field work. A land unit basis map was created using Landsat TM and ASTER photos, which was then used in field work. A minimum of one soil profile was obtained for each land unit during the field survey, totaling 317 soil profiles (horizons were described, photographed, and sample were collected). Land units have been modified based on field findings such as morphology and vegetation type.

As a result, a complete digital soil map for the study area (Larache, Morocco) was developed, together with a database of chemical and physical properties. This database will be used to support a variety of important geographical assessments, including crop suitability, irrigation, forest development, and capability analysis.

Author (S) Details

Waad Ibrahim

Environmental Planning und Studies, Geo-Data Base and Geoinformation Application Berlin, Germany

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