Abstract The present study evaluated the potential impacts of climate change of Hamadan-Bahar plain on dimensions including economical, physiological, hydrological and meteorological aspects. The results showed that climate change in the region has negative impacts on the agricultural sector by reducing the crop yield as well as groundwater balance. In the most optimistic scenario on the horizon of 2090, rainfall and groundwater levels would reduce by 14.4 and 12.3 %, respectively and the average temperature would rise by 14.7 %. Accordingly, the economic value of water would increase by 44 % and the agricultural value-added (net income) would fall by 19 %, indicating the intensification of water shortage crisis and agricultural recession. Also, the results of this study show that optimal deficit irrigation strategy in the production of water intensive crops as well as improving irrigation technologies would be potential solutions to the climate change crisis in the coming years. However, the common pool nature of groundwater resources in addition to capital inadequacy are the challenges faced when adopting these two approaches by farmers.

中文翻译：

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应对农业气候变化：来自伊朗哈马丹-巴哈尔平原的证据

摘要 本研究评估了哈马丹-巴哈尔平原气候变化对经济、生理、水文和气象等方面的潜在影响。结果表明，该地区的气候变化通过降低作物产量和地下水平衡对农业部门产生负面影响。在最乐观的 2090 年情景中，降雨量和地下水位将分别减少 14.4% 和 12.3%，平均气温将上升 14.7%。相应地，水的经济价值将增加44%，农业增加值（纯收入）将下降19%，表明水资源短缺危机和农业衰退加剧。还，这项研究的结果表明，在水密集型作物的生产中采用最佳亏缺灌溉策略以及改进灌溉技术将是未来几年气候变化危机的潜在解决方案。然而，除了资本不足外，地下水资源的共同池性质是农民在采用这两种方法时面临的挑战。