Journal
AGRICULTURAL WATER MANAGEMENT
Volume 243, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.agwat.2020.106417
Keywords
Agricultural water pollution; Cross-sectoral water pollution; Joint governance strategy; Differential game
Categories
Funding
- Six Talent Peaks Project in Jiangsu Province [JY-095]
- National Natural Science Foundation of China [71704066]
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Agriculture in developing countries is heavily subsidized, with minimal environmental restrictions, leading to water pollution from excessive use of chemical fertilizers and pesticides. Research shows that when agricultural and industrial sectors work together to reduce water pollution, the level of common pollutants decreases, while damage is lower when both sectors participate in mitigation measures independently.
Agriculture in developing countries is a vulnerable sector and is subsidized. Environmental restrictions on agriculture sector are minimal. The excessive use of chemical fertilizers and pesticides has caused serious non point source water pollution. Although previous studies have focused on agricultural water pollution, the cooperation between agricultural and industrial sectors in water pollution mitigation has not been thoroughly discussed. In this context, this paper introduces a cross-sectoral water pollution dynamic model. We studied the feedback (subgame perfect) equilibrium of the non-cooperative game between two sectors. To discern the impact of environmental policy, we compared the equilibrium solutions of two scenarios that differ in terms of environmental policy for agricultural sector mitigation. The results show that when agricultural and industrial sectors work together to mitigate water pollution, the accumulated common pollutants level decreases; when sectors consider mitigation measures in their objectives, they tend to emit more pollutants; the damage produced by both sectors is lower when both sectors participate in mitigation. Our policy recommendation is that crosssectoral water pollution control is essential and developing countries should include both agricultural and industrial sectors in environmental governance to maximize the coordination of cross-sectoral environmental policies.
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