A Spatial Analytic Hierarchy Process for Identification of Water Pollution with GIS Software in an Eco-Economy Environment

Şerbu, Răzvan; Mârza, Bogdan; Borza, Sorin

doi:10.3390/su8111208

Cited by 11 publications

(5 citation statements)

References 18 publications

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“…The integration of GIS and AHP has also been used on several occasions in flood risk analyses in the catchment area [87][88][89][90][91]. Attention was also paid to the potential of these combined tools in assessing river pollution [92], and the location of water reservoirs [93].…”

Section: Discussionmentioning

confidence: 99%

AHP as a Useful Tool in the Assessment of the Technical Condition of Hydrotechnical Constructions

2021

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The key challenge for sustainable water management is to carry out a proper assessment of the technical condition of hydrotechnical constructions. Maintaining them in a good state is a prerequisite for ensuring the safety of objects, as well as adjacent areas. This paper compares the results of field research obtained by three methods to assess the technical condition of structures located on the Wełna River. The main objective is to determine the differences between the methods and to indicate the most important assessment elements and criteria. Moreover, it was checked if the Analytic Hierarchy Process (AHP) can be used to carry out the correct assessment of hydrotechnical construction. An assessment that will be based on the hierarchy of factors, which is not often used in other methods. The AHP was applied for the first time to assess the technical condition of hydrotechnical constructions. Based on AHP, three variants of different weights for factors, including exploitation problems and damage to construction elements, were selected. The new variants developed by the authors allow for a more accurate, multifactor assessment. The use of scales to determine the importance of individual elements contributes to the actual representation of the technical condition of the object, which is often over- or underestimated by other assessment methods. The analysis shows that the AHP method is a useful tool to support the assessment of the technical condition of hydrotechnical construction. The use of AHP as a universal assessment method will compare the technical condition of hydrotechnical constructions located all over the world.

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Section: Discussionmentioning

confidence: 99%

AHP as a Useful Tool in the Assessment of the Technical Condition of Hydrotechnical Constructions

2021

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“…AHP model was adopted in this research in order to give value to the criteria and select the best appropriate site. The incorporation of AHP and GIS facilitates decision-making process significantly [36,37]. Satty [38] was the first to propound AHP and it is asserted to be one of the best decision-making methods.…”

Section: Application Of Ahp In Siting Solid Waste Landfillmentioning

confidence: 99%

A GIS–AHP-based approach in siting MSW landfills in Lokoja, Nigeria

et al. 2019

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The acute shortage and scarcity of lands for suitable waste disposal is rapidly becoming a critical growing potential problem in most urban cities in developing countries of the world, and several fast-growing cities in Nigeria are not exempted from this menace. In this study, geographic information system (GIS) and analytic hierarchy process (AHP) are combined to select the most suitable landfill location in Lokoja, Nigeria. The landfill site selection criteria considered include proximity to major road, powerline, water body, landfill areas and built-up area. GIS was used to digitize spatial features related to unsuitable landfill site. A total of 19 candidate landfill sites were identified from GIS analysis. AHP model was developed from the GIS result as multi-criteria decision tool in evaluating each candidate site so as to choose the best appropriate landfill site. AHP model rated candidate site 11 located along Jimgbe road has the most preferable site to locate a landfill in Lokoja with an approximate area of 3.4204 km 2 ; the distance from the minor road, nearest water body, powerline and built-up areas to the location is 210.50 m, 1408.20 m, 1810.80 m and 205.61 m, respectively. Also, the model rated candidate site 16 located along 500 housing units as the least preferable site to locate a landfill in Lokoja. The characteristic features of the site location as obtained from GIS analysis include an approximate area of 2.5680 km 2 at an approximate distance of 2430.75 m, 594.04 m, 1980 m and 200.68 m from the major road, water body, powerline and built-up areas, respectively. This result will greatly serve as guide in landfill site selection in major urban states of other developing countries.

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“…The Analytic Hierarchy Process (AHP) method can be utilized to ascertain the relative weights of different attributes that decision-makers have [27]. AHP has been commonly applied in recent years to deal with complicated, large, and elusive decision problems [28,29]. This paper uses AHP to calculate the weights of different regions for the upper reach of Hun River basin.…”

Section: Modified Weightmentioning

confidence: 99%

A Framework for Ecological Compensation Assessment: A Case Study in the Upper Hun River Basin, Northeast China

2019

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With the rapid socio-economic development, human disturbances are believed to have resulted in the degradation of the watershed ecosystem. The ecological damage to and environmental pollution of river basins have caused great losses. It is widely agreed upon that the protection and restoration of river ecosystems should be on the agenda. Ecological compensation, an important tool to prevent the deterioration of water environments and achieve sustainable watershed development, has attracted increasing interest as a research subject. In this study, the upper reach of Hun River basin was selected as a typical study area. The primary purpose was to determine the allocation costs of ecological compensation in different regions for the river basin. The amount of willingness-to-pay (WTP) for the eco-compensation was estimated at 3.2 million dollars by the Contingent Valuation Method (CVM). Based on linear programming techniques, a Data Envelopment Analysis (DEA) created a primary value of the allocation costs. Considering the different weights of each region, a modified coefficient was introduced to correct the primary result on the basis of a questionnaire survey of river ecological protection and construction.

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A Spatial Analytic Hierarchy Process for Identification of Water Pollution with GIS Software in an Eco-Economy Environment

Cited by 11 publications

References 18 publications

AHP as a Useful Tool in the Assessment of the Technical Condition of Hydrotechnical Constructions

AHP as a Useful Tool in the Assessment of the Technical Condition of Hydrotechnical Constructions

A GIS–AHP-based approach in siting MSW landfills in Lokoja, Nigeria

A Framework for Ecological Compensation Assessment: A Case Study in the Upper Hun River Basin, Northeast China

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