AI SearchAssessing potential salt-vulnerable areas through terrain analysis using remote sensing and GIS - the Vientiane Plain case study (Record no. 8806)
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| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b10098331 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.NR-91-04 |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Nokeo Ratanavong |
| 245 10 - TITLE STATEMENT | |
| Title | Assessing potential salt-vulnerable areas through terrain analysis using remote sensing and GIS - the Vientiane Plain case study |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1991 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 119 p. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. NR-91-04 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirement for the Degree of Master of Science, School of Environment, Resources and Development |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc.) - Asian Institute of Technology, 1991 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Salt-affected areas in the Vientiane Plain have been created by a salinization process operating primarily via saline groundwater. They are characterized by the occurrence of highly saline barren patches with few halophiles, surrounded by apparently less or non - saline areas. The saline patches show an uneven distribution within t he topographically low-lying terrains. Salt- affected areas can be observed o n remotely-sensed images with the help of secondary indicators and verified by ground truth surveys. Besides soils affected by salt at present, potential salt-vulnerable soils must also be distinguished. Soils considered potentially salt-vulnerable are those that are not, or only to a mi n o r degree, saline at present, but with environmental changes could become salt-affected. Potential salinity classes are based on a combination of factors rather than t he presence of surface salt occurences only. Highly salt- vulnerable areas are located within low- lying areas with shallow watertables, of saline quality, underlain by the Tha Ngone salt-bearing Formation, with fine textured soils a nd inefficient drainage, and covered with sparse vegetation. A sandy soil is rarely a salt- affected soil because t he soil is well drained a nd the salt can be leached out easily. A clayey soil is likely to be salt-affected if t he salts are introduced by surface water. A loamy soil is likely to be affected if t he ground water is saline because the capillary rise is higher than in other soils. Paddy fields may favor the development of salinization. These fields need poor drainage conditions for rice cultivation, which is one of the factors favoring salinization if combined with other environmental factors. Potential salt-vulnerable areas could be assessed at a reconnaissance level by integrating and analyzing the necessary environmental data and information. Further field and analytical data are needed for more adequate modeling. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Salinization |
| General subdivision | Vientiane Plain |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Salinization |
| General subdivision | Remote sensing |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | GIS (Computer program) |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Lukens, John E., |
| Relator term | Chairperson |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Prinya Nutalaya, |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Motti, Etienne, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | SIDA ( Swedish International Development Agency), |
| 810 2# - SERIES ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology. |
| Title of a work | Thesis ; |
| Volume/sequential designation | no. NR-91-04 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B17692">http://203.159.5.9/ait-thesis/detail.php?q=B17692</a> |
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| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Cost, normal purchase price | Total checkouts | Full call number | Barcode | Date last seen | Copy number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | 17/08/2026 | 50.00 | AIT Thesis no.NR-91-04 | 30050120658751 | 17/08/2026 | 3 | 17/08/2026 | 22-AIT Thesis (Replacement) | |||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 17/08/2026 | 50.00 | AIT Thesis no.NR-91-04 | 30050121097843 | 17/08/2026 | 1 | 17/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 17/08/2026 | AIT Thesis no.NR-91-04 | 30050160027529 | 17/08/2026 | 1 | 17/08/2026 | 40-Archives | |||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 17/08/2026 | 50.00 | AIT Thesis no.NR-91-04 | 30050121001589 | 17/08/2026 | 2 | 17/08/2026 | 20-AIT Publication |