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Dam site selection using an integrated method of AHP and GIS for decision making support in Bortala, Northwest China

Dai, Xinyi LU (2016) In Lund University GEM thesis series NGEM01 20161
Dept of Physical Geography and Ecosystem Science
Abstract
Constructing dam is a possible solution for remitting the scarcity of irrigation water resource in Bortala, Northwest China. Considering the complexity of dam site selection, Analytic Hierarchy Process (AHP) was chosen in combination of Geographic Information System (GIS) as the method of Multi-Criteria Decision Making on selecting dam site. Precipitation, slope, geological layer, soil type, land cover and drainage order were considered as criteria in this study. A suitability map of constructing dam in Bortala was generated, based on which 8 possible dam sites with relatively high suitability were proposed. According to the suitability map, West Bortala, where the elevation is relatively high, was found to be the densest area with high... (More)
Constructing dam is a possible solution for remitting the scarcity of irrigation water resource in Bortala, Northwest China. Considering the complexity of dam site selection, Analytic Hierarchy Process (AHP) was chosen in combination of Geographic Information System (GIS) as the method of Multi-Criteria Decision Making on selecting dam site. Precipitation, slope, geological layer, soil type, land cover and drainage order were considered as criteria in this study. A suitability map of constructing dam in Bortala was generated, based on which 8 possible dam sites with relatively high suitability were proposed. According to the suitability map, West Bortala, where the elevation is relatively high, was found to be the densest area with high and very high suitability for constructing dam while Northwest and Central Bortala were found as low or extremely low suitability area for constructing dam. In a percentage describing, 11.8% area of Bortala dropped in the range of high suitability and very high suitability in which only 0.0001% was very high suitability area; 47.6% area of Bortala was found in the range of moderate suitability; 34.1% of Bortala has got low or extremely low suitability. The profile of proposed dams containing cross section and characteristics of dam such as height, width, and volume were generated. Among the proposed dams, there were 2 small dams, 5 medium dams, and 1 large dam proposed with storage capacities varied from 122,506 m3 to 5,033,652 m3. (Less)
Popular Abstract
Water is a renewable but finite resource which is essential for human beings life and activities. In China, freshwater resource scarcity is a severe problem in Northwest China. As an effective response to irrigation water demand, dam construction is supported by both the Central Government of China and local government.
This study has applied an analysis of dam site selection on a prefecture named Bortala, which has the typical climate type and topographic conditions among Xinjiang province (the biggest province on aspect of land area in Northwest China). Considering dam site selection is a decision making problem with multiple factors involved, the analysis used in this study was defined as an integrated method of Analytic Hierarchy... (More)
Water is a renewable but finite resource which is essential for human beings life and activities. In China, freshwater resource scarcity is a severe problem in Northwest China. As an effective response to irrigation water demand, dam construction is supported by both the Central Government of China and local government.
This study has applied an analysis of dam site selection on a prefecture named Bortala, which has the typical climate type and topographic conditions among Xinjiang province (the biggest province on aspect of land area in Northwest China). Considering dam site selection is a decision making problem with multiple factors involved, the analysis used in this study was defined as an integrated method of Analytic Hierarchy Process (AHP) and Geographic Information System (GIS). This integrated method has combined the simplicity and powerfulness of AHP on Multiple Criteria Decision Making problem with powerful capabilities of GIS on mass data computation, visualization and mapping.
As the results of this study, a suitability map of constructing dam in Bortala was generated, based on which 8 possible dam sites with profiles of characteristics were proposed. (Less)
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author
Dai, Xinyi LU
supervisor
organization
course
NGEM01 20161
year
type
H2 - Master's Degree (Two Years)
subject
keywords
Bortala, site selection, MCDM, GIS, AHP, Northwest China, physical geography and ecosystem science, GEM
publication/series
Lund University GEM thesis series
report number
14
language
English
id
8886448
date added to LUP
2016-07-06 19:26:39
date last changed
2016-07-06 19:26:39
@misc{8886448,
  abstract     = {Constructing dam is a possible solution for remitting the scarcity of irrigation water resource in Bortala, Northwest China. Considering the complexity of dam site selection, Analytic Hierarchy Process (AHP) was chosen in combination of Geographic Information System (GIS) as the method of Multi-Criteria Decision Making on selecting dam site. Precipitation, slope, geological layer, soil type, land cover and drainage order were considered as criteria in this study. A suitability map of constructing dam in Bortala was generated, based on which 8 possible dam sites with relatively high suitability were proposed. According to the suitability map, West Bortala, where the elevation is relatively high, was found to be the densest area with high and very high suitability for constructing dam while Northwest and Central Bortala were found as low or extremely low suitability area for constructing dam. In a percentage describing, 11.8% area of Bortala dropped in the range of high suitability and very high suitability in which only 0.0001% was very high suitability area; 47.6% area of Bortala was found in the range of moderate suitability; 34.1% of Bortala has got low or extremely low suitability. The profile of proposed dams containing cross section and characteristics of dam such as height, width, and volume were generated. Among the proposed dams, there were 2 small dams, 5 medium dams, and 1 large dam proposed with storage capacities varied from 122,506 m3 to 5,033,652 m3.},
  author       = {Dai, Xinyi},
  keyword      = {Bortala,site selection,MCDM,GIS,AHP,Northwest China,physical geography and ecosystem science,GEM},
  language     = {eng},
  note         = {Student Paper},
  series       = {Lund University GEM thesis series},
  title        = {Dam site selection using an integrated method of AHP and GIS for decision making support in Bortala, Northwest China},
  year         = {2016},
}