Simulating the spatial distribution of pollutant loads from pig farming using an agent-based modeling approach

被引:0
作者
An The Ngo
Giang Thi Huong Nguyen
Duong Huu Nong
Linda See
机构
[1] Vietnam National University of Agriculture,Faculty of Natural Resources and Environment
[2] International Institute for Applied Systems Analysis (IIASA),Advancing Systems Analysis Program
来源
Environmental Science and Pollution Research | 2022年 / 29卷
关键词
Agent-based model; Pollutant load; Pig farming; Planned behavior; Water pollution; Livestock waste;
D O I
暂无
中图分类号
学科分类号
摘要
This research developed an agent-based model (ABM) for simulating pollutant loads from pig farming. The behavior of farmer agents was captured using concepts from the theory of planned behavior. The ABM has three basic components: the household or farmer agent, the land patches, and global parameters that capture the environmental context. The model was evaluated using a sensitivity analysis and then validated using data from a household survey, which showed that the predictive ability of the model was good. The ABM was then used in three scenarios: a baseline scenario, a positive scenario in which the number of pigs was assumed to remain stable but supporting policies for environmental management were increased, and a negative scenario, which assumed the number of pigs increases but management measures did not improve relative to the baseline. The positive scenario showed reductions in the discharged loads for many sub-basins of the study area while the negative scenario indicated that increased loads will be discharged to the environment. The scenario results suggest that to maintain the development of pig production while ensuring environmental protection for the district, financial, and technical support must be provided to the pig producers. The experience and education level of the farmers were significant factors influencing behaviors related to manure reuse and treatment, so awareness raising through environmental communication is needed in addition to technical measures.
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页码:42037 / 42054
页数:17
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共 78 条
[1]  
Ajzen I(1991)The theory of planned behavior Organ Behav Hum Decis Process 50 179-211
[2]  
Beck JR(1986)The use of relative operating characteristic (ROC) curves in test performance evaluation Arch Pathol Lab Med 110 13-20
[3]  
Shultz E(2000)Rediscovery of traditional ecological knowledge as adaptive management Ecol Appl 10 1251-1262
[4]  
Berkes F(1997)Searching for important factors in simulation models with many factors: sequential bifurcation Eur J Oper Res 96 180-194
[5]  
Colding J(2002)Agent-based modeling: methods and techniques for simulating human systems Proc Natl Acad Sci 99 7280-102
[6]  
Folke C(1992)A commentary on error measures Int J Forecast 8 100-169
[7]  
Bettonvil B(2009)Behavioral determinants of household participation in a home composting scheme Environ Behav 41 151-362
[8]  
Kleijnen JPC(2008)Are farm households’ land renting and migration decisions inter-related in rural China? NJAS Wageningen J Life Sci 55 345-291
[9]  
Bonabeau E(2011)Modelling the interactions between regional farming structure, nitrogen losses and environmental regulation Agric Syst 104 281-201
[10]  
Chatfield C(2007)Integrated decision support system (DSS) for manure management: a review and perspective Comput Electron Agric 57 190-162