Ground-mounted photovoltaic (PV) arrays of an agrivoltaic system (AVS) creates shade in the interspace areas as well as below PV areas of the AVS. Therefore, availability of photosynthetic photon flux density (PPFD) and daily light integral (DLI) in the AVS is negatively affected, which restricts optimum crop growth and yield. Therefore, in this study, spatial and temporal variation of PPFD and DLI in the AVS (105 kW_p) developed at Jodhpur, India were quantified. Among three designs of PV arrays in the AVS, the proportion of shaded area in interspace was found highest in single row design and lowest in triple row design. The amount of PPFD varied widely in the AVS and even within the shaded area. Following semivariogram and kriging approach, spatial variation of PPFD and DLI was quantified within the AVS. Highest amount of PPFD was observed near noon in unshaded areas (1295 μmol m⁻² s⁻¹) whereas lowest amount was observed during morning at below PV array (24 μmol m⁻² s⁻¹). Based on the maps of PPFD and DLI, three distinct zones in the AVS were identified: (i) below PV array (DLI = 0–5 mol m⁻² d⁻¹), (ii) interspace area with partial shade (DLI = 5–20 mol m⁻² d⁻¹) and (iii) interspace areas with no shade (DLI = 20–30 mol m⁻² d⁻¹). Knowledge of spatial and temporal variation of PPFD and DLI may help in selection of suitable crops for the AVS.

农业光伏系统 (AVS) 的地面安装光伏 (PV) 阵列在 AVS 的间隙区域以及光伏区域下方产生阴影。因此，AVS 中光合光子通量密度 (PPFD) 和日光积分 (DLI) 的可用性受到负面影响，从而限制了最佳作物生长和产量。因此，在本研究中，AVS (105 kW _p) 在印度焦特布尔开发的被量化。在AVS的三种光伏阵列设计中，空间阴影面积比例在单排设计中最高，在三排设计中最低。PPFD 的量在 AVS 中甚至在阴影区域内变化很大。根据半变异函数和克里金方法，在 AVS 内量化了 PPFD 和 DLI 的空间变化。在接近中午的无阴影区域观察到最高量的 PPFD (1295 μmol m ^-2 s ^-1 )，而在早晨在光伏阵列下方观察到最低量 (24 μmol m ^-2 s ^-1 )。基于 PPFD 和 DLI 的地图，确定了 AVS 中的三个不同区域：(i) 光伏阵列下方 (DLI = 0–5 mol m ^-2 d ^-1), (ii) 有部分阴影的空间区域 (DLI = 5–20 mol m ^-2 d ^-1 ) 和 (iii) 没有阴影的空间区域 (DLI = 20–30 mol m ^-2 d ^-1 )。了解 PPFD 和 DLI 的空间和时间变化可能有助于为 AVS 选择合适的作物。