“…Many influencing factors on the farmers' affordability were found related to economic and psychological factors (Chen et al, 2009) Model for determining the influencing factors for the farmers' willingness to pay for irrigation water price based on social capital Social capital was found to be one of the important factors affecting the farmers' WTP for irrigation water prices; factors such as the farmers' main labor force, arable land area, water supply timeliness, and the working ability of water managers also had significant impacts on the farmers' WTP the irrigation water prices (Zhang et al, 2010) Psychological references point, willingness to pay, and irrigation water price: evidence from 567 farmers from 20 counties in Sichuan Education, gender, last year's household expenditure, last year's rice income, and whether the water price was fair were found to affect the farmers' psychological references point water price to varying degrees (Zhang et al, 2014) Farmers' willingness to pay for water and the influencing factors: a case study of Zhangye City in Heihe River Basin WTP was significantly related to seven factors: total sown area, corn sown area, type of irrigation water, total household income, age of the main family labor force, individual risk perception, and location (Yin and Cai, 2016) Analysis of the farmers' willingness to pay for the irrigation water and effecting factors in the Guanzhong area Household income level, water supply quantity, water supply quality, and water fee collection fairness all had a significant positive impact on the farmers' WTP the water price, whereas irrigation times had a significant negative impact on the WTP (Wang et al, 2018) Farmers' willingness to pay for agricultural irrigation water and its influence factors in the Weigan River basin Factors such as age, gender, educational level, water-saving irrigation, accepting government water conservation for industrial development, and cities (projects) paying for water and giving compensation had a significant impact on the WTP of farmers in the basin (Qiao et al, 2018) Study on the irrigation water price, farmers' willingness to pay in arid areas, and its influencing factors: a case study in Minqin county in Gansu Province…”