Geology-soil toposequence for crop production of Huai Sai Royal Development Study Center, Phetchaburi, Thailand | |
| Author | Wittaya Nuntawad |
| Call Number | AIT Thesis no.SR-98-09 |
| Subject(s) | Geomorphology--Thailand--Phetchaburi Plant-soil relationships--Thailand--Phetchaburi |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | The objectives of this study are to study the relationships between soil development and geomorphology along toposequence, study the genesis and dispersion of duripan, and formulating some guidelines for soil conservation and crop production. Soil samples represented three different geomorphological units; foot slope, marine terrace, and alluvial plain. Soil physical, chemical and micromorphology properties were studied. Soil on foot slope is duripan. Their characteristics are hard, massive, white to light grey color, loamy sand to sandy loam texture, slightly acidic to strongly alkaline, low to high base saturation, and very low organic carbon. This soil is not suitable for crop production. The duripan should be improved for soil conservation purpose. Soil on marine terrace comprise of A, E, Ex, Bsm, and Bqm horizon. Their characteristics are white color, sandy loam texture, very strong acidic to moderately alkaline, low organic carbon, and very high available potassium. Upland crops can grow on this soil. The soil should be improve by applying fertilizers. Soil on alluvial plain comprise of A and Bt horizon. It had pinkish grey to very pale brown color, sandy loam to loam texture, loose to firm, very strong alkaline, low available phosphorous, high to very high available potassium, and very low organic carbon content. Strip planting across the slope with grass such as vetiver and application of waste water treatment sludge is recommended for duripan on foot slope. Detail survey as well as mapping of duripan on marine terrace is suggested for land use planning. Further study of crop suitability on sludge over duripan is suggested for field application. |
| Year | 1998 |
| Type | Thesis |
| School | School of Environment, Resources, and Development |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Space Technology Application and Research (SR) |
| Chairperson(s) | Apisit Eiumnoh; |
| Examination Committee(s) | Remigio, Amador A.; Preeda Parkpian; |
| Scholarship Donor(s) | Electricity Generating Authority of Thailand ; |
| Degree | Thesis (M. Sc.) - Asian Institute of Technology, 1998 |