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气候风险认知、适应措施与农业生产力之间的协同作用:以巴基斯坦的水稻种植社区为例。

Synergy between climate risk perception, adaptation responses, and agricultural productivity: the case of rice farming communities in Pakistan.

作者信息

Khan Nasir Abbas, Gong Zaiwu, Shah Ashfaq Ahmad

机构信息

Research Center of Risk Management and Emergency Decision-making, School of Management Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, China.

出版信息

Environ Sci Pollut Res Int. 2022 Apr;29(16):23750-23766. doi: 10.1007/s11356-021-17615-y. Epub 2021 Nov 23.

Abstract

The climate variability in Pakistan adversely affects rice crops and undermines the food security and livelihoods of millions of rural households whose survival depends directly on rice farming. This study examines farmers' risk perception, adaptation responses, and adaptation impact on rice productivity. We employed a multi-stage sampling method for selecting 480 farmers from the rice production zone of Punjab province, a region that produces more than 60% of the total rice in the country and faces significant production decline due to climate change. We used the risk matrix method to determine farmers' perception of climate change-induced risk and used the propensity score matching (PSM) technique to analyze the impact of adaptation measures on rice yield and crop returns. Results show that farmers had high perceptions and were concerned about biological and financial risks, followed by biophysical, atmospheric, and social risks. Farmers applied supplementary irrigation, changed rice cultivation dates, changed rice varieties, resized farms, and altered irrigation application times as adaptation measures to cope with changing climate effects. Probit regression analysis showed that the adaptation measures had been largely affected by farmers' socioeconomic attributes and risk perceptions. The PSM estimates showed that all adaptation measures had a positive impact on rice yield and crop return. Specifically, the cultivation of alternative rice varieties, farm resizing, and supplementary irrigation were the most effective strategies, followed by the adjustment in cultivation dates and irrigation time. Having implications beyond Pakistan, this study suggests improving farmers' access to irrigation water, credit, and farm advisory services to facilitate the extent of adaptation.

摘要

巴基斯坦的气候多变性对水稻作物产生不利影响,破坏了数百万农村家庭的粮食安全和生计,这些家庭的生存直接依赖于水稻种植。本研究考察了农民的风险认知、适应措施及这些措施对水稻生产力的影响。我们采用多阶段抽样方法,从旁遮普省水稻产区选取了480名农民,该地区的水稻产量占全国总产量的60%以上,且因气候变化面临显著减产。我们使用风险矩阵法确定农民对气候变化引发风险的认知,并运用倾向得分匹配(PSM)技术分析适应措施对水稻产量和作物收益的影响。结果表明,农民对生物风险和财务风险的认知度较高,其次是生物物理风险、大气风险和社会风险。农民采取了补充灌溉、改变水稻种植日期、更换水稻品种、调整农场规模以及改变灌溉时间等适应措施,以应对气候变化的影响。Probit回归分析表明,适应措施在很大程度上受到农民社会经济属性和风险认知的影响。PSM估计结果显示,所有适应措施都对水稻产量和作物收益产生了积极影响。具体而言,种植替代水稻品种、调整农场规模和补充灌溉是最有效的策略,其次是调整种植日期和灌溉时间。本研究的影响超出了巴基斯坦,它建议改善农民获得灌溉用水、信贷和农业咨询服务的机会,以促进适应的程度。

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