Li Hao, Chen Wenbo, Li Jintai, Zhang Cheng, Liang Haifen
School of Surveying and Geoinformation Engineering East China University of Technology Nanchang China.
Jiangxi Bureau of Geology Energy Geology Brigade Nanchang China.
Ecol Evol. 2024 Dec 17;14(12):e70686. doi: 10.1002/ece3.70686. eCollection 2024 Dec.
Understanding the effects of ecological restoration in abandoned coal mines on soil and plant is important to improve the knowledge of ecosystems evolution and facilitate taking appropriate ecological restoration management practices. This study aims to evaluate the coupling relationship between plant diversity and soil properties after ecological restoration in abandoned coal mine area. The plant diversity such as Margalef index (), Simpson index (), Shannon-Wiener index (), and Pielou index (), and soil properties such as soil pH, soil water content (SWC), soil bulk density (SBD), soil organic matter (SOM), available nitrogen (AN), and microbial biomass carbon (MBC) were investigated in four sites of different ecological restoration patterns, T and study the coupling relationship between them. The results indicated that: (1) the and gardner and champ restoration (PSR) site had higher Shannon-Wiener index and Simpson index values than restoration (PR) site, and in herb layer, the plant diversity was significantly higher than in other layers; (2) in the PSR site, the soil properties were improved more notably than that of PR and nature restoration (NR) sites, and the plant diversity were also higher than PR site; (3) Clay, SOM, and MBC made a great contribution to the plant diversity. It was concluded that ecological restoration patterns had significant effects on soil nutrient content and plant diversity, and there exists evident coupling relationship between plant diversity and soil properties. This study has important effects of ecological restoration and management in abandoned coal mine area.
了解废弃煤矿生态修复对土壤和植物的影响，对于增进对生态系统演变的认识以及推动采取适当的生态修复管理措施至关重要。本研究旨在评估废弃煤矿区生态修复后植物多样性与土壤性质之间的耦合关系。在四种不同生态修复模式的场地（T）中，调查了植物多样性指标，如玛格列夫指数（）、辛普森指数（）、香农 - 维纳指数（）和皮洛指数（），以及土壤性质指标，如土壤pH值、土壤含水量（SWC）、土壤容重（SBD）、土壤有机质（SOM）、速效氮（AN）和微生物生物量碳（MBC），并研究它们之间的耦合关系。结果表明：（1）加德纳和钱普修复（PSR）场地的香农 - 维纳指数和辛普森指数值高于修复（PR）场地，且在草本层，植物多样性显著高于其他层；（2）在PSR场地，土壤性质的改善比PR场地和自然修复（NR）场地更显著，且植物多样性也高于PR场地；（3）黏土、SOM和MBC对植物多样性贡献较大。研究得出结论，生态修复模式对土壤养分含量和植物多样性有显著影响，植物多样性与土壤性质之间存在明显的耦合关系。本研究对废弃煤矿区的生态修复和管理具有重要意义。
