Observed meteorological characteristics and distribution pattern of dustfall trace elements in the Kubuqi Desert photovoltaic plant
To investigate the impact of photovoltaic plant construction on the local environment,a compre-hensive environmental and meteorological observation experiment was conducted in March 2023 for a photovoltaic plant located in the Kubuqi Desert.The study aimed to quantify the effects of photovoltaic plants on the local climate environment and elucidate the distribution pattern of trace elements in dustfall from photovoltaic panels.The results showed that,in the morning,the air temperature inside the photo-voltaic plant was higher than outside,whereas in the afternoon,the opposite was observed.The average air temperature in the lower layer inside the plant was 4.43℃,being 0.82℃lower than outside.The bottom layer of the farm experienced a significantly higher air humidity compared to the upper layer,with a potential difference of 10%or more.The air humidity in the bottom layer of the plant was notably higher than in the bottom layer outside.The wind speed inside the plant was significantly lower than the outside,the bottom layer was 59.8%lower than outside.The plant demonstrated a considerable impact on wind and sand fixation,as the amount of dustfall inside the plant was 1.70 g/m2,being 170.27 g/m2 lower than outside.The different types of solar panels also exhibited varying amounts of dustfall,with fixed adjust-able solar panels having a dustfall of 0.45 g/m2,being 0.6 g/m2 lower than tracking solar panels.In the dustfall inside the plant,the highest content was observed for the nutrient element Fe,followed by Mn and Mo.The content of toxic elements w(V),w(Cr),w(Zn),w(Ni),w(Cu),w(Pb),and w(As)in the central photovoltaic plant were 1.67×10-7、1.19×10-7、1.70×10-7、1.70×10-8、6.90×10-8、2.20×10-8 and 5.00×10-9,respectively,which were significantly lower than those at the edge of the plant and the desert edge,indicating that the photovoltaic plant helped reduce the enrichment of toxic heavy metal elements.
photovoltaic plantmeteorological characteristicsclimatic effectatmospheric dustfalltrace element
万方数据
维普
