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008 080919s2007 th uu|m rtt 0| a1eng d
035 _a.b12039482
099 9 _aAIT Thesis no.WM-06-15
100 0 _aSarayuth Punbune
245 1 0 _aApplication of AnnAGNPS in a selected sub basin in Ping Watershed for soil and water quality assessment
260 _aPathum Thani, Thailand :
_bAsian Institute of Technology,
_c2007
300 _a88 leaves :
_bill. (some col.)
490 1 _aThesis ;
_vno. WM-06-15
500 _aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering
502 _aThesis (M.Eng.) - Asian Institute of Technology, 2006
520 _aThis study was conducted to evaluate soil and water quality in a particular sub basin of Ping River Basin. The selection of a pilot sub basin in Ping watershed was done based on a number of criteria such as scoring approaches. It was found that Mae Rim sub basin has the highest soil erosion score and this was the main basis for selecting the basin for this study. After selecting Mae Rim sub basin, data on watershed, land use, soil, climate, topography, and crop were collected from relevant sources. These data were used as inputs to run the AnnAGNPS (Annualized AGricultural Non point Source) model in order to simulate soil and water quality in the selected sub basin. In evaluating soil and water quality using AnnAGNPS (a continuous simulation and distributed pollution model), a number of procedures which include identification, extraction, and processing of critical area data using an AreView Geographic Information System (GIS) was used. The 2 years of synthetic climate data were used to generate event and source accounting predictions for a multi-use 522 square kilometer watershed in Mae Rim pilot sub basin. Results show very high erosion in high slope areas in northern part of Mae Rim. Water quality parameters such as Nitrogen, Phosphorus, and Organic Carbon, on the other hand, were found to have concentration within acceptable limits. These results reflect that the quality of water is not a major concern at the site, at this time. However, in this study area, a great number of observed data are required for calibration and validation before using the model as a tool for development planning and management. So if further testing can be undertaken, the approach adopted in this pilot sub basin can be applied to other watersheds in Thailand
651 0 _aPing River Watershed (Thailand)
650 0 _aSoil erosion
_zThailand
650 0 _aWater quality
_zThailand
650 0 _aWatersheds
_zThailand
700 1 _aClemente, Roberto S.,
_eChairperson
700 1 _aGupta, Ashim Das,
_eExamination Committee
700 1 _aBabel, Mukand Singh,
_eExamination Committee
700 0 _aSutat Weesakul,
_eExamination committee
710 2 _aMinistry of Agriculture and Cooperative,
_eScholarship donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. WM-06-15
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B04281
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