受人为气候变化引发的极端高温和热穹顶影响,美国部分特色作物种植者正面临减产、收获期缩短及工人健康受损等严峻挑战 [1]。为适应这一环境变化,相关农户采取了包括调整采摘时间、升级种植设施以及推行多样化种植在内的多项应对措施 [1]。
具体而言,水果和蔬菜等特色作物的农民通过改变作业时间来规避高温时段 [1]。以覆盆子为例,原本为期三周的收获期因持续高温而被迫缩短,工人不得不从清晨 6 点开始工作,以确保在正午气温升高前完成采摘任务 [1]。针对热穹顶带来的高温高湿环境对农场人员构成的“严重健康威胁”,相关从业者已发出警示 [1]。
此外,现有的联邦农业保险体系主要覆盖玉米、大豆等传统大宗作物,难以满足种植种类多且面积小的特色作物农民的风险保障需求 [1]。
Extreme heat driven by human-caused climate change and associated heat domes is forcing specialty crop farmers to alter their practices as they face reduced yields and shorter harvesting windows [1]. To mitigate these risks, growers are adjusting planting schedules and improving farm infrastructure such as ventilation systems [1]. Paul Rasch noted that the raspberry harvest season has been compressed from three weeks due to high temperatures, requiring workers to start at 6 a.m. to complete tasks before noon heat becomes unbearable [1]. Melissa Widhalm warned that the combination of extreme heat and humidity under these conditions poses "serious health threats" to farmworkers [1]. Additionally, farmers are diversifying their crops as an adaptation strategy [1]. However, existing federal crop insurance programs primarily cover traditional row crops like corn and soybeans rather than specialty varieties [1]. Duncan Orlander explained that because these projects insure single-crop operations with large acreages, small-scale growers who plant a variety of species struggle to obtain adequate risk protection under the current system [1].