2026-10-13T22:36:55Z https://api.figshare.com/v2/oai

oai:figshare.com:article/34021422 2026-09-29T05:42:41Z category_8 portal_316 item_type_3 month_year_09_2026

Table 1_Pyrochar versus hydrochar: contrasting modulation of soil bacterial communities under severe nitrate-dominated acid rain stress in a Quercus acutissima plantation.docx Yuanyuan Feng (738195) Shushu Yao (24015123) Ke Yuan (172453) Haibo Hu (1798012) Peng Cui (33358) Yanfang Feng (1806727) Lihong Xue (3621059) Microbiology bacterial community hydrochar predicted functional potential pyrochar nitrate-dominated acid rain <p>Nitrate-dominated acid rain (NAR) has become an increasingly prevalent component of contemporary atmospheric deposition and can profoundly alter soil bacterial communities in forest ecosystems. Biochar amendment has been proposed as a potential strategy for modifying soil conditions under acid deposition stress. However, the material-dependent effects of pyrochar (PC) and hydrochar (HC) on bacterial community responses under severe NAR stress remain unclear. Here, a field experiment was conducted in a Quercus acutissima plantation to compare the effects of PC and HC on soil bacterial community structure and predicted functional potential under simulated severe NAR stress. Compared with the NAR-only treatment, PC and HC reduced the relative abundance of Chloroflexi by 41.20 and 38.06%, respectively, and increased Actinobacteriota by 43.30 and 38.52%. LEfSe analysis revealed Chloroflexi as a phylum showing differential enrichment under NAR stress, whereas Acidobacteriota and Proteobacteria were differentially enriched in PC-NAR and HC-NAR treatments, respectively. Predicted phenotypic and functional profiles further indicated different bacterial responses to PC and HC. Exploratory association analysis suggested that PC-associated responses were more closely related to microbial biomass-associated variables, whereas HC-associated responses showed stronger relationships with soil chemical properties and microbial biomass. These findings highlight the material-dependent roles of PC and HC as carbon-based amendments and provide field-based insights into selecting biochar types for managing bacterial community responses in NAR-affected plantation soils.</p> 2026-09-29T05:42:41Z Dataset Dataset 10.3389/fmicb.2026.1961661.s001 https://figshare.com/articles/dataset/Table_1_Pyrochar_versus_hydrochar_contrasting_modulation_of_soil_bacterial_communities_under_severe_nitrate-dominated_acid_rain_stress_in_a_Quercus_acutissima_plantation_docx/34021422 CC BY 4.0