An Approach to Drought Vulnerability Assessment Focused on Groundwater Wells in Upland Cultivation Areas of South Korea

Agronomy

Gyumin Lee¹  Changi Park²  Jaeyoung Lee³  Jaenam Lee⁴  Hyungjin Shin⁴  Minji Park⁵ 

[1] Construction and Environmental Research Center, Sungkyunkwan University, 2566 Sebu-ro, Suwon-si 16419, Korea;Department of Rural Construction Engineering, Kongju National University, 54 Daehak-ro, Yesan-gun 32439, Korea;Research Center, Contecheng Co., Ltd., 338 Ganggyojangang-ro, Yongin-si 16942, Korea;Rural Research Institute, Korea Rural Community Corporation, 870 Haean-ro, Ansan-si 15634, Korea;Water Pollution Load Management Research Division, National Institute of Environmental Research, 42 Hwangyong-ro, Seogu, Incheon 22689, Korea;

关键词: drought;    vulnerability assessment;    groundwater well;    TOPSIS;   

DOI  :  10.3390/agronomy11091783

来源: DOAJ

【 摘 要 】

This study aimed to present an approach that identifies priority management areas to drought focused on field crops and groundwater wells using the MCDM method. Groundwater wells are the primary source of water during drought for field crops. Nevertheless, the systematic management of groundwater wells has not been achieved. Thus, this paper intends to establish a plan that can manage groundwater wells through a vulnerability assessment. This study used TOPSIS, a widely applied multi-criterion decision-making algorithm, to evaluate 158 cities and counties in Korea. This study chose the assessment factors by focusing on drought and classifying the positive and negative elements of the wells. Precipitation, groundwater level, and pumping capacity were considered to have positive effects, while cultivated area, the number of consecutive days without rain, and the proportion of private groundwater wells were considered as negative factors. As a result, the pumping capacity per cultivation area is the major factor affecting management priorities and groundwater well vulnerability. This study presents an approach to assess the drought vulnerability of field crops focused on groundwater wells and select a priority management area, which facilitates efficient well management and reduces damage to crops caused by local droughts.

【 授权许可】

Unknown