Paving photovoltaic panels on the loess high slopes in northern Shaanxi

Are soil erosion control practices effective in the Chinese Loess Plateau?

Soil erosion control practices have been extensively conducted in the Chinese Loess Plateau, which is one of the most severe soil erosion regions in the world. Nevertheless, a comprehensive overview of the effectiveness of these erosion control practices in this region is lacking.

Which soil surface is rougher under a PV panel?

Compared with the relative smooth soil surface of the control slope (Fig. 6a), the soil surface under the PV panel was rougher. For example, under the 80 mm hr-1rainfall, a big part of the ground surface under the PV panel did not have soil surface seal (see the red square in Fig. 6b).

Can photovoltaic panels be placed on a slope of a road?

Layout of photovoltaic panels on the south-facing slope of the road. Similarly, the optimal tilt angles of PV arrays on the slopes of roads in typical directions could be simulated and derived using PVsyst7.2, and they are shown in Table 2. However, the desirable PV array placement may not always be in the same orientation as the target slope.

How to prevent soil erosion in the Loess Plateau region?

Soil erosion is serious, and the ecological environment is fragile in the Loess Plateau region. Engineering, biological measures, and farming measures are all necessary to inhibit soil erosion in the Loess Plateau region, reduce the amount of sediment entering the Yellow River and improve the ecological environment.

Can PV PGP be assessed on Highway slopes?

Therefore, this study proposes an assessment method for the PV PGP on highway slopes using the design or calculated highway and slope geometric parameters and the solar radiation received by PV panels under the desirable placement scheme.

Does a photovoltaic panel reduce runoff and sediment in a slope?

The impact of a photovoltaic (PV) panel on runoff and sediment in a slope was tested. The key impact of the PV panel is preventing soil detachment by raindrop impacts. The PV panel slope produced 27 %−63 % less soil erosion than the control slope. The PV panel delayed runoff start time under rainfall with heavy rainfall intensities.