Climate change effects on pesticide usage reduction efforts: a case study in China

Yuquan W. Zhang (), Bruce McCarl, Yibo Luan and Ulrich Kleinwechter
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Yuquan W. Zhang: Institute of New Rural Development, Shanghai Jiao Tong University
Yibo Luan: Beijing Normal University
Ulrich Kleinwechter: International Institute for Applied Systems Analysis

Mitigation and Adaptation Strategies for Global Change, 2018, vol. 23, issue 5, No 3, 685-701

Abstract: Abstract China has announced plans to stabilize its pesticide use by 2020. Yet, future climate change will possibly increase the difficulty of meeting this goal. This study uses econometric estimation to explore how climate impacts Chinese pesticide usage and subsequently to project the future implications of climate change on pesticide use. The results indicate that both atmospheric temperature and precipitation increase pesticide usage. Under current climate change projections, pesticide usage will rise by +1.1 to 2.5% by 2040, +2.4 to 9.1% by 2070, and +2.6 to 18.3% by 2100. Linearly extrapolating the results to 2020 yields an approximately 0.5 to 1.2% increase. Thus, to achieve stabilization, more severe actions are needed to address this increase. Possible actions to achieve the reductions needed include using better monitoring and early warning networks so as to permit early responses to climate change-stimulated increases, enhancing information dissemination, altering crop mix, and promoting nonchemical control means. Additionally, given that increased pesticide usage generally increases health and environmental damage, there may be a need to more widely disseminate safe application procedure information while also strengthening compliance with food safety regulations. Furthermore, pest control strategies will need to be capable of evolving as climate change proceeds. Globally, efforts could be made to (1) scale up agrometeorological services, especially in developing countries; (2) use international frameworks to better align the environmental and health standards in developing countries with those in developed countries; and (3) adapt integrated pest management practices to climate change, especially for fruits and vegetables.

Keywords: Climate change; Integrated pest management; Pesticide reduction; Pesticide usage (search for similar items in EconPapers)
Date: 2018
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DOI: 10.1007/s11027-017-9755-y

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