Meng Ruibing, Meng Zhongju, Jia Ruiting, Li Haonian, Cai Jiale, Gao Yue
College of Desert Control and Engineering, Inner Mongolia Agricultural University, Hohhot, China.
Key Laboratory of Aeolian Physics and Desertification Control Engineering from Inner Mongolia Autonomous Region, Inner Mongolia Agricultural University, Hohhot, China.
Front Plant Sci. 2025 May 27;16:1607404. doi: 10.3389/fpls.2025.1607404. eCollection 2025.
Scientific and reasonable vegetation restoration plays a pivotal role in enhancing soil quality, boosting ecosystem services, and ensuring the long-term stable operation of photovoltaic (PV) power stations in desert regions. To elucidate the response mechanisms of soil under different vegetation restoration implemented in PV power stations located in sandy areas, this study selected the PV power plant in Duguitala Township of the Hobq Desert as a representative research site. A systematic evaluation was conducted on the effects of four artificial vegetation restoration strategies, namely, (LC), (GU), (AO), and (HS) under panels and between panels. This analysis aimed to clarify the influence of different vegetation restoration approaches on soil quality in sandy regions and their underlying mechanisms. The findings revealed that these vegetation restoration measures significantly impacted soil texture, bulk density (BD), soil porosity (SP), soil water content, and water retention capacity. Specifically, LC and GU markedly improved soil physical structure and water retention capacities. Vegetation restoration substantially enhanced soil nutrient accumulation, with LC achieving the highest levels of multiple soil nutrient indices (total nitrogen (TN), total phosphorus (TP), and available potassium (AK)), HS exhibiting the highest level of available phosphorus (AP), and GU demonstrating superiority in total potassium (TK). These diverse vegetation restoration strategies exhibited potential advantages in improving soil fertility and promoting nutrient cycling at locations under PV panels. The soil quality index (SQI) showed that the effectiveness of the different vegetation measures in enhancing soil quality was ranked GU>LC>HS>AO>CK. This study not only provides robust theoretical support for ecological restoration in desert PV plants, but also offers practical experience applicable to vegetation restoration efforts in similar ecological environments, thereby possessing significant ecological and practical value.
科学合理的植被恢复对于提高土壤质量、增强生态系统服务功能以及确保沙漠地区光伏电站的长期稳定运行起着关键作用。为了阐明沙地光伏电站实施不同植被恢复措施下土壤的响应机制，本研究选取库布齐沙漠独贵塔拉镇的光伏电站作为典型研究地点。对光伏板下和光伏板间的四种人工植被恢复策略，即（LC）、（GU）、（AO）和（HS）的效果进行了系统评估。该分析旨在阐明不同植被恢复方式对沙地土壤质量的影响及其潜在机制。研究结果表明，这些植被恢复措施对土壤质地、容重（BD）、土壤孔隙度（SP）、土壤含水量和持水能力有显著影响。具体而言，LC和GU显著改善了土壤物理结构和持水能力。植被恢复显著增强了土壤养分积累，LC的多种土壤养分指标（全氮（TN）、全磷（TP）和速效钾（AK））达到最高水平，HS的有效磷（AP）水平最高，GU在全钾（TK）方面表现出优势。这些不同的植被恢复策略在改善光伏板下土壤肥力和促进养分循环方面显示出潜在优势。土壤质量指数（SQI）表明，不同植被措施在提高土壤质量方面的效果排序为GU>LC>HS>AO>CK。本研究不仅为沙漠光伏电站的生态恢复提供了有力的理论支持，还为类似生态环境下的植被恢复工作提供了实践经验，具有重要的生态和实践价值。
