Human life has come to a standstill when the countrywide lockdown was imposed to curb the infection of the highly contagious COVID-19 pandemic. Mass transportation and industrial activities were prohibited, which has proven advantageous for the environmental quality. This study was conducted to investigate the impact of lockdown on the environmental parameters measured over agricultural ecosystems in the Himalayan foothills [Saharanpur Flux Site (SFS) and Palampur Flux Site (PFS)], India. The UV–Aerosol Index obtained from the Sentinel-5 Precursor satellite falls drastically after imposing lockdown particularly in both the agricultural regions. It reached up to −3.082 and −3.522 during the first lockdown in SFS and PFS, respectively. Furthermore, due to the lesser availability of aerosols into the atmosphere, the availability of direct radiant energy increased, thus led to warming the earth’s surface. Improvement in direct radiant energy and normalized difference vegetation index positively increases the gross primary productivity in SFS and PFS.

为遏制传染性极强的COVID-19大流行的感染而实施的全国封锁时，人们的生活已陷入停顿。禁止进行大规模运输和工业活动，这已证明对环境质量有利。进行这项研究的目的是调查锁定对印度喜马拉雅山麓丘陵[Saharanpur通量站点（SFS）和Palampur通量站点（PFS）]上农业生态系统测得的环境参数的影响。从Sentinel-5前体卫星获得的紫外线-气溶胶指数在实施锁定后尤其是在两个农业地区均急剧下降。在SFS和PFS的第一次锁定期间，它分别达到-3.082和-3.522。此外，由于进入大气的气溶胶较少，直接辐射能的可用性增加，从而导致地球表面变暖。直接辐射能量的提高和归一化差异植被指数的提高，积极提高了SFS和PFS的总初级生产力。