Plant community restoration time is a key factor affecting plant nutrient and species richness
文献类型： 外文期刊
作者： Luo, Yonghong 1 ; Cheng, Jiming 1 ; Mahmood, Mohsin 2 ; Wei, Shuhua 4 ; Peng, Liqing 3 ; Zhang, Chao 3 ; Zhang, Min 3 ; Zhang, Jinfeng 5 ; Yang, Hui 1 ; Wang, Jiazhi 2 ; Hao, Zhenggang 7 ; Yan, Xingfu 1 ;
作者机构： 1.North Minzu Univ, Sch Biol Sci & Engn, Yinchuan 750021, Peoples R China
2.Inner Mongolia Univ, Sch Ecol & Environm, Hohhot 010000, Peoples R China
3.Cent China Normal Univ, Sch Life Sci, Wuhan 430079, Peoples R China
4.Ningxia Acad Agr & Forestry Sci, Plant Protect Inst, Yinchuan, Peoples R China
5.Qinghai Normal Univ, Coll Life Sci, Xining 810016, Peoples R China
6.Key Lab Ecol Protect Agropastoral Ecotones, Yinchuan 750021, Peoples R China
7.Ningxia Taiyixin Biotechnol Co Ltd, Yinchuan 750021, Peoples R China
关键词： Nutrient limitation; N:P ratio; Disturbance; Forest succession; Stoichiometry; Forest management
期刊名称：SCIENTIFIC REPORTS （ 影响因子：3.9； 五年影响因子：4.3 ）
ISSN： 2045-2322
年卷期： 2025 年 15 卷 1 期
页码：
收录情况： SCI
摘要： Nitrogen (N) and phosphorus (P) are vital nutrients in terrestrial ecosystems, essential for vegetation growth, plant survival, development, and the maintenance of plant diversity. While the effects of N and P additions on plant nutrient concentrations and diversity have been extensively studied, the impact of various stages of natural forest ecosystem restoration after disturbance, particularly on plant N, P nutrients, and diversity, is less understood. This study investigates the influence of anthropogenic disturbance on soil N: P ratios, plant community-level N: P, and species diversity in Liaodong oak forests in northern China during early (about 10 years), mid-to-late (about 30 years), and late (about 40 years) restoration stages (it is a space for time substitution method). We observed that soil total nitrogen to total phosphorus ratio (TN: TP) and soil available nitrogen to phosphorus ratio (AN: AP) were significantly lower in the mid-to-late and late stages of restoration compared to the early restoration stages. Concurrently, plant community level leaf nitrogen-phosphorus ratio (CWMN: P) were notably lower in these later stages. Additionally, species richness showed a decline as restoration time increased. These findings highlight that decreasing soil N: P ratio over time exacerbates plant N limitation and reduces plant richness, emphasizing the critical role of soil nutrient dynamics in forest restoration post-disturbance. Our results provide important insights for forest management and restoration practices, contributing to a better understanding of ecosystem restoration processes.
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