干旱区生态环境知识资源中心(Arid): Effect of the membership function type on the fuzzy risk of allowable groundwater drawdown calculation results

Arid

DOI	10.1007/s00477-020-01950-6
	Effect of the membership function type on the fuzzy risk of allowable groundwater drawdown calculation results
	Liu, Peigui; Zhang, Su; Shang, Manting
通讯作者	Liu, PG (corresponding author), Hefei Univ Technol, Sch Civil Engn, Hefei 230009, Peoples R China. ; Liu, PG (corresponding author), Nanjing Hydraul Res Inst, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing 210029, Peoples R China.
来源期刊	STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT
ISSN	1436-3240
EISSN	1436-3259
出版年	2021
英文摘要	Because of the complexity of groundwater systems and human activities, fuzzy and random uncertainties are two kinds of uncertain factors that exist widely in groundwater systems. The fuzziness of the variables is usually described by membership functions. When the variables obey different membership functions, the fuzzy risk of adverse events may be different. To explore the influence of the membership function type on the reliability of the estimation results of allowable groundwater drawdown, taking groundwater exploitation in desert oasis areas that have great dependence on groundwater as an example, a fuzzy stochastic coupling model of the allowable groundwater drawdown is established. Using the theory of the cut level lambda, fuzzy variables are transformed into random variables to obtain the fuzzy risk. The results show that unlike the random risk, the fuzzy random risk is an interval. The membership functions with a normal distribution and quasi-normal distribution have little effect on the fuzzy risk in the case study. When lambda < 0.67, the fuzzy risk interval of the triangle membership function is the largest, and its risk interval maximum value of 98.36% can be obtained at lambda = 0.1; however, when lambda > 0.8, it has the smallest risk interval of all the membership functions. If the skewness of the design parameters is taken into consideration, the lognormal membership function is a better choice, with a fuzzy random risk of 57.68% at lambda = 0.5. The results of this paper can also provide references for groundwater exploitation risk assessment.
英文关键词	Fuzzy-stochastic model Membership Distribution type Groundwater drawdown Desert marginal area
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000604550400006
WOS关键词	UNCERTAINTY ANALYSIS ; SENSITIVITY-ANALYSIS ; SPATIAL VARIABILITY ; RANDOM-VARIABLES ; RELIABILITY ; FLOW ; FRAMEWORK
WOS类目	Engineering, Environmental ; Engineering, Civil ; Environmental Sciences ; Statistics & Probability ; Water Resources
WOS研究方向	Engineering ; Environmental Sciences & Ecology ; Mathematics ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352461
作者单位	[Liu, Peigui; Zhang, Su] Hefei Univ Technol, Sch Civil Engn, Hefei 230009, Peoples R China; [Liu, Peigui] Nanjing Hydraul Res Inst, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing 210029, Peoples R China; [Shang, Manting] Hefei Univ Technol, Sch Transportat Engn, Hefei 230009, Peoples R China
推荐引用方式 GB/T 7714	Liu, Peigui,Zhang, Su,Shang, Manting. Effect of the membership function type on the fuzzy risk of allowable groundwater drawdown calculation results[J],2021.
APA	Liu, Peigui,Zhang, Su,&Shang, Manting.(2021).Effect of the membership function type on the fuzzy risk of allowable groundwater drawdown calculation results.STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT.
MLA	Liu, Peigui,et al."Effect of the membership function type on the fuzzy risk of allowable groundwater drawdown calculation results".STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT (2021).