文献类型： 外文期刊

作者： Zhao, Wenjing ¹ ; Zhao, Jing ¹ ; Liu, Meiying ¹ ; Gao, Yong ⁴ ; Li, Wenlong ⁵ ; Duan, Haiwen ⁶ ;

作者机构： 1.Inner Mongolia Agr Univ, Coll Grassland Resources & Environm, Hohhot 010018, Peoples R China

2.Inner Mongolia Key Lab Soil Qual & Nutrient Resour, Hohhot 010018, Peoples R China

3.Univ Inner Mongolia Autonomous, Key Lab Agr Ecol Secur & Green Dev, Hohhot 010018, Peoples R China

4.Inner Mongolia Agr Univ, Coll Desert Control Sci & Engn, Hohhot 010018, Peoples R China

5.Chinese Acad Agr Sci, Grassland Res Inst, Hohhot 010010, Peoples R China

6.Inner Mongolia Acad Agr & Anim Husb Sci, Hohhot 010031, Peoples R China

关键词： photovoltaic power stations; vegetation restoration; soil organic carbon; soil organic carbon storage; soil stoichiometry

期刊名称：AGRONOMY-BASEL （ 影响因子：3.7； 五年影响因子：4.0 ）

ISSN：

年卷期： 2024 年 14 卷 1 期

页码：

收录情况： SCI

摘要： The photovoltaic industry is developing rapidly because of its renewable energy and other advantages. However, the installation of this infrastructure may affect soil, vegetation, and carbon dynamics, making it is necessary to carry out vegetation restoration work at a plant's location in the later stages of its construction. For this reason, three types of artificial vegetation were selected (Pinus sylvestris var. mongolica, Astragalus membra-naceus var. mongholicus and Medicago sativa) as research objects in an ecological photovoltaic power plant in Northern China, to study the changes in soil organic carbon storage (SOCS), carbon:nitrogen ratios (C:N) and C:phosphorus ratios (C:P) at different soil depths and for different vegetation types. Natural vegetation plots undisturbed by the construction of the power plant were used as a control. Seven years after revegetation, we found that the storage and content of soil organic carbon in all three artificial vegetation plots were notably lower compared to the control. Nevertheless, the soil's organic carbon content for Medicago sativa plots increased was significantly higher by 1.2 g center dot kg-1 compared to Pinus sylvestris var. mongolica and A. membranaceus var. mongholicus plots, while organic carbon storage increased significantly by 3.55 t center dot ha and 7.15 t center dot ha. SOCS, C:N, and C:P concentrations in the 0-20 cm soil layer exhibited a significantly higher value in comparison to those of the 20-40 cm soil layer. As the soil depth increased, all the concentrations declined gradually. Vegetation type and soil depth, as well as their interaction, had a significant impact on soil carbon storage, C:N, and C:P. The study area was restricted by the availability of P. In general, vegetation restoration is a beneficial ecological practice for soil restoration at photovoltaic power stations. It is believed that planting alfalfa can accelerate the improvement of soil carbon with an extension of vegetation recovery time. In order to restore the balance of nutrients for plants, it is necessary to avoid human interference at the later stage, and to supplement phosphorus as soon as possible to minimize phosphorus limitation at the later stage of vegetation growth, which is of great importance to increasing the likelihood of success in reclaiming disturbed land.