Sustainable phytoextraction of metal-polluted agricultural land used for commercial photovoltaic power generation
文献类型： 外文期刊
作者： Li, Zhu 1 ; Sun, Xi 1 ; Zhou, Jiawen 1 ; Wu, Longhua 1 ; Bi, De 3 ; Zhao, Jie 4 ; Zhu, Renfeng 3 ; Christie, Peter 1 ;
作者机构： 1.Chinese Acad Sci, Inst Soil Sci, CAS Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Peoples R China
2.Yunnan Acad Agr Sci, Inst Agr Resources & Environm, Kunming 650000, Peoples R China
3.Jiangsu Firefly Environm Sci & Technol Co Ltd, Nanjing 210008, Peoples R China
4.Anhui Guozhen Environm Remediat Co Ltd, Hefei, Peoples R China
关键词： Agrivoltaics; Phytoextraction; Potentially toxic metals; Soil pollution; Sedum plumbizincicola
期刊名称：JOURNAL OF CLEANER PRODUCTION （ 影响因子：11.1； 五年影响因子：11.0 ）
ISSN： 0959-6526
年卷期： 2023 年 391 卷
页码：
收录情况： SCI
摘要： Metal pollution of agricultural soils is currently an issue of major concern in China and many soils require remediation. Photovoltaic (PV) power generation is a useful source of renewable energy but solar power plants often require large areas of land. Combining PV power generation with phytoextraction on contaminated arable land is therefore a novel and potential option if these processes can work effectively together. A three-year-long continuous field study was conducted to test the feasibility of phytoextraction using a metal hyperaccumulator species growing under arrays of PV panels. Meteorological data were collected and the growth and cadmium (Cd) and zinc (Zn) uptake of the Cd/Zn hyperaccumulator Sedum plumbizincicola were determined. Shading by the PV panels reduced the annual solar irradiance by 58.4% but this showed no inhibitory effect on plant growth or metal uptake by S. plumbizincicola. Phytoextraction under the PV panels gave high removal efficiencies of Cd and Zn and the hyperaccumulator took up Cd and Zn at rates of 3.40 and 96.2 kg ha-1, respectively, for three seasons. It is concluded that soil phytoextraction and PV electricity generation can be combined to realize soil remedi-ation and energy production.
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