IMPACTS OF HABITAT HETEROGENEITY CAUSED BY PHOTOVOLTAIC ARRAYS IN ROCKY DESERTIFICATION AREA ON FUNCTIONAL TRAITS OF PLANT LEAVES

Jiang Lizhe; Luo Jiufu; Wu Sainan; Sui Xin; Liu Jun; Liu Yan

doi:10.19912/j.0254-0096.tynxb.2022-0122

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (6) : 252-259. DOI: 10.19912/j.0254-0096.tynxb.2022-0122

IMPACTS OF HABITAT HETEROGENEITY CAUSED BY PHOTOVOLTAIC ARRAYS IN ROCKY DESERTIFICATION AREA ON FUNCTIONAL TRAITS OF PLANT LEAVES

Jiang Lizhe¹, Luo Jiufu^2,3, Wu Sainan^2,3, Sui Xin^2,3, Liu Jun⁴, Liu Yan⁴

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Abstract

In order to explore the vegetation restoration strategy of photovoltaic station in rocky desertification area, current experiment aims to identify the differences of eight leaf functional traits in 4 typical habitats, i.e., the inter, front eaves, rear eaves, and under of the photovoltaic panels. The results indicate that the influences of photovoltaic panels shading on plants compared with the plants at inter-panels as follows: 1） Leaf functional traits show detectable changes for the plants at front and rear eaves, i.e., the leaf fresh weight, leaf dry weight, leaf area, leaf volume and leaf tissue density increasing, whereas the specific leaf area decreases;the leaf water content, leaf fresh weight and specific leaf area increasing for the plants under the panels, whereas the leaf tissue density and leaf dry weight decrease;2） Generally, the leaf functional traits interspecific variations decrease at front and rear eaves, whereas increase under the panels;however, the interspecific variation of leaf thickness increases with shading and the leaf water content shows a minimal fluctuation. In short, plants tend to adopt active and conservative ecological strategies, but conservatism mainly at front and rear eaves;the plants under the panels tend to adopt active ecological strategy to enhance the resource acquisition;the plants at inter-panels tended to adopt conservative ecological strategy. Thus, the combination of plant leaf functional traits implicate the difference in ecological strategies in changed habitats, and understanding ecological strategies provide insight into vegetation restoration of photovoltaic power station in rocky desertification area.

Key words

photovoltaic / plants / vegetation restoration / rocky desertification / leaf functional traits / ecological strategy

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Jiang Lizhe, Luo Jiufu, Wu Sainan, Sui Xin, Liu Jun, Liu Yan. IMPACTS OF HABITAT HETEROGENEITY CAUSED BY PHOTOVOLTAIC ARRAYS IN ROCKY DESERTIFICATION AREA ON FUNCTIONAL TRAITS OF PLANT LEAVES[J]. Acta Energiae Solaris Sinica. 2023, 44(6): 252-259 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0122

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