Value accounting of ecological products in an agrophotovoltaic power station:a case study on the Zhengtai Jiangshan 200 MW agrophotovoltaic power station
This study aims to quantitatively evaluate the ecological benefits of agrophotovoltaic power stations.Based on the biophysical valuation method of ecological product value accounting,combining remote sensing,geographic information,field sampling,and agricultural planting data,we used the Zhengtai Jiangshan 200 MW agrophotovoltaic power station,the largest agrophotovoltaic power station in east China,as an example.We quantitatively evaluated the economic benefits of ecological products provided by the selected agrophotovoltaic power station.According to characteristics of the agrophotovoltaic power station,we selected six accounting indicators,namely:agricultural products,water conservation,soil conservation,carbon fixation,oxygen release,and air purification.According to the plantation type under the PV panels,we divided the power station into five zones:tea garden area,vegetable area,traditional Chinese medicine area,breeding area,and kiwi area.Our results show that:the total economic value of ecological products in 2021 was 16.056 4 million yuan,with 1.693 7 million for provisioning services,accounting for 10.55%,and 14.362 7 million for regulating services,accounting for 89.45%;the distribution of the total value of ecological products in different areas was highest in the tea garden area,followed by the kiwi area,vegetable area,farming area,and traditional Chinese medicine area;the value of ecological products per unit area was 3.79 yuan·m-2 in 2021 in the case area.Our results indicate that the ecological product value accounting of an agrophotovoltaic power station quantitatively demonstrates their ecological benefits,and provides technical guidance for improving the comprehensive benefits of agrophotovoltaic power stations.Our study fills the research gap regarding the quantitative evaluation of ecological benefits of agrophotovoltaic power stations and provides a novel idea for the collaborative realization of solar resource utilization and ecological product value.
ecological product value realizationecosystem serviceagrophotovoltaicrenewable energycarbon peakingcarbon neutrality
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