Li Jiajun, Zheng Yulong, Chang Shukui, Li Yangping, Wang Yi, Chang Xue, Li Weitao
Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla 666303, China.
School of Ecology and Environmental Sciences, Yunnan University, Kunming 650500, China.
Plants (Basel). 2025 Jan 29;14(3):401. doi: 10.3390/plants14030401.
The increasing threat of biological invasion poses significant challenges to global ecosystems, necessitating urgent management measures. This study investigated the potential of biochar derived from invasive plant , produced through anaerobic digestion, as a tool for mitigating the soil legacy effects of this species and restoring the plant community. Soil samples were collected from artificially constructed plots of invasive plant communities and were subjected to treatments with different levels of fungicide and biochar addition. Potted plant communities replicating the original species composition were established, and biomass were used to evaluate the effectiveness of soil restoration. Our results demonstrated that soil sterilization enhanced plant biomass, with invasive plants showing a more pronounced increase compared to native species, indicating different responses to the soil biota. The addition of biochar influenced plant biomass, with an optimal biochar concentration of 2% of the soil mass, promoting the growth of native plants. The application of biochar in conjunction with soil sterilization facilitated the restoration of native communities in areas with low invasion intensity. Overall, these findings provide valuable insights into the potential of biochar-based strategies for managing invasive plants and restoring ecosystems, underscoring the necessity for further research to optimize field applications and evaluate ecological impacts.
生物入侵威胁的不断增加给全球生态系统带来了重大挑战，因此迫切需要采取管理措施。本研究调查了通过厌氧消化从入侵植物中提取的生物炭作为减轻该物种土壤遗留效应和恢复植物群落的工具的潜力。从人工构建的入侵植物群落地块采集土壤样本，并进行不同水平的杀菌剂和生物炭添加处理。建立了复制原始物种组成的盆栽植物群落，并使用生物量来评估土壤恢复的效果。我们的结果表明，土壤灭菌提高了植物生物量，与本地物种相比，入侵植物的增加更为明显，表明对土壤生物群的反应不同。生物炭的添加影响了植物生物量，土壤质量的最佳生物炭浓度为2%，促进了本地植物的生长。在入侵强度较低的地区，将生物炭与土壤灭菌结合使用有助于恢复本地群落。总体而言，这些发现为基于生物炭的入侵植物管理和生态系统恢复策略的潜力提供了有价值的见解，强调了进一步研究以优化田间应用和评估生态影响的必要性。
