Low-Carbon Hybrid Constructed Wetland System for Rural Domestic Sewage: Substrate–Plant–Microbe Synergy and Annual Performance DOI Open Access
Jiawei Wang, Gang Zhang,

Dejian Wang

и другие.

Water, Год журнала: 2025, Номер 17(10), С. 1421 - 1421

Опубликована: Май 9, 2025

An integrated hybrid system was developed, incorporating sedimentation, anaerobic digestion, biological filtration, and a two-stage subsurface flow constructed wetland, horizontal wetland (HSSFCW) vertical (VSSFCW), to treat rural sewage in southern Jiangsu. To optimize nitrogen phosphorus removal, the potential of six readily accessible industrial agricultural waste byproducts—including plastic fiber (PF), hollow brick crumbs (BC), blast furnace steel slag (BFS), zeolite–blast composite (ZBFS), zeolite (Zeo), soil—was systematically evaluated individually as substrates wetlands (VSSFCWs) under varying hydraulic retention times (HRTs, 0–120 h). The synergy among substrates, plants, microbes, coupled with effects time (HRT) on pollutant degradation performance, clarified. Results showed BFS achieved optimal comprehensive removal efficiencies (97.1% NH4+-N, 76.6% TN, 89.7% TP, 71.0% COD) at HRT = 12 h, while excelled NH4+-N/TP (99.5%/94.5%) zeolite–BFS specializing COD reduction (80.6%). System-wide microbial analysis revealed organic load (sludges from sedimentation tank [ST] tanks [ATs]), substrate type, rhizosphere critically shaped community structure, driving specialized pathways like sulfur autotrophic denitrification (Nitrospira) iron-mediated removal. Annual engineering validation demonstrated that optimized strategy “pretreatment unit for control—vertical enhanced removal” stable effluent quality compliance Grade 1-A standard domestic discharge after treatment facilities, without addition external carbon sources or exogenous inoculants. This low-carbon operation long-term stability position it an alternative energy-intensive activated sludge membrane-based systems resource-limited settings.

Язык: Английский

Soil Microbial Carbon Use Efficiency in Natural Terrestrial Ecosystems DOI Creative Commons

Weirui Yu,

Lianxi Sheng,

Xue Wang

и другие.

Biology, Год журнала: 2025, Номер 14(4), С. 348 - 348

Опубликована: Март 27, 2025

Soil microbial carbon use efficiency (CUE) is the ratio of allocated to growth that taken up by microorganisms. CUE affects terrestrial ecosystem processes such as greenhouse gas emissions, turnover, and sequestration, which an important indicator changes in cycle. Firstly, we summarized three methods soil CUE, stoichiometric modeling, 13C glucose tracing, 18O water compared advantages limitations methods. Then, analyzed single or combined effects different environmental factors on grassland ecosystems, forest wetland ecosystems. Finally, suggested future research should focus following aspects: influence management patterns (such grazing prohibition gap, thinning ecosystems); strategies microorganisms for adapting CUE; anaerobic metabolic pathways, especially ecosystems; taxonomic level. This study contributes investigation mechanisms cycling ecosystems mitigate impacts climate change.

Язык: Английский

Процитировано

1
Environmental variables controlling soil aggregate stability across spatial scales and locations in a karst region of southwestern China DOI Creative Commons
Weichun Zhang, Jiangwen Li, Xin Zhang

и другие.

Geoderma, Год журнала: 2025, Номер 456, С. 117240 - 117240

Опубликована: Март 12, 2025

Язык: Английский

Процитировано

0
Elevation-dependent distribution of soil microbial necromass carbon in Pinus densata Mast. forests DOI

Bo Zhang,

Sijie Zhu, Liangna Guo

и другие.

Applied Soil Ecology, Год журнала: 2025, Номер 209, С. 106049 - 106049

Опубликована: Март 23, 2025

Язык: Английский

Процитировано

0
Linking microbial metabolism and ecological strategies to soil carbon cycle function in agroecosystems DOI
Xianwen Long, Jiangnan Li, Xionghui Liao

и другие.

Soil and Tillage Research, Год журнала: 2025, Номер 251, С. 106562 - 106562

Опубликована: Апрель 2, 2025

Язык: Английский

Процитировано

0
Global synthesis on the responses of microbial- and plant-derived carbon to conservation tillage DOI

Yalin Yu,

Li Li,

Jinkang Yang

и другие.

Plant and Soil, Год журнала: 2025, Номер unknown

Опубликована: Фев. 19, 2025

Язык: Английский

Процитировано

0
Divergence of microbial carbon use efficiency and soil organic carbon along a tidal flooding gradient in a subtropical coastal wetland DOI
Ji Tan, Jiafang Huang,

Weimin Quan

и другие.

Water Research, Год журнала: 2025, Номер unknown, С. 123527 - 123527

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0
Potential Roles of Soil Viruses in Karst Forest Soil Carbon and Nitrogen Cycles DOI Open Access
Hanqing Wu, Nan Wu,

Qiumei Ling

и другие.

Forests, Год журнала: 2025, Номер 16(5), С. 735 - 735

Опубликована: Апрель 25, 2025

Soil viruses, ubiquitous and abundant biological entities that are integral to microbial communities, exert pivotal impacts on ecosystem functionality, particularly within carbon (C) nitrogen (N) cycles, through intricate interactions with bacteria, archaea, fungi, other taxa. While their contributions soil dynamics increasingly elucidated, the specific roles of viruses in karst forest remain largely underexplored. Karst ecosystems (covering 15% global terrestrial surface) characterized by unique geological formations, thin patchy layers, high pH Ca2+, rapid hydrological dynamics, collectively fostering environmental conditions may shape viral ecology modulate C N cycling. This perspective synthesizes existing knowledge functions distinctive characteristics soil, proposing potential mechanisms which could influence cycling such fragile ecosystems. regulate cycles both directly indirectly via hosts, mainly including shaping community structure, mediating horizontal gene transfer metabolism, increasing availability alleviating nutrient limitations, promoting sequestration, mitigating climate change. work aims bridge biogeochemical providing insights into sustainable stewardship resilience. We delineate critical gaps propose future perspectives, advocating for targeted metagenomic long-term experimental studies diversity, virus–host-environment interactions, temporal dynamics. Specifically, we advocate following research priorities advance our understanding studies: (I) abundance, activity: characterizing activity forests using metagenomics complementary molecular approaches; (II) virus–host interactions: investigating between key taxa involved cycling; (III) impacts: quantifying lysis fluxes soil; (IV) modeling cycles: developing integrative models incorporate virus-mediated processes frameworks at different spatial scales. Such efforts essential validate hypothesized underlying mechanisms, offering a foundation nature-based solutions facilitate support ecological restoration vulnerable regions amid

Язык: Английский

Процитировано

0
Carbon capture and storage via enhanced carbonate weathering coupled with aquatic photosynthesis: Potential, cost, and advantages DOI

Liangxing Shi,

Sibo Zeng, Zaihua Liu

и другие.

Earth-Science Reviews, Год журнала: 2025, Номер unknown, С. 105149 - 105149

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0
Mechanisms of plant-derived and microbial residue carbon in coastal wetland soils in response to salinity gradients DOI
Xinkun Zhao, Jingyu Sun,

Chenmiao Liu

и другие.

CATENA, Год журнала: 2025, Номер 256, С. 109108 - 109108

Опубликована: Май 9, 2025

Язык: Английский

Процитировано

0
Low-Carbon Hybrid Constructed Wetland System for Rural Domestic Sewage: Substrate–Plant–Microbe Synergy and Annual Performance DOI Open Access
Jiawei Wang, Gang Zhang,

Dejian Wang

и другие.

Water, Год журнала: 2025, Номер 17(10), С. 1421 - 1421

Опубликована: Май 9, 2025

An integrated hybrid system was developed, incorporating sedimentation, anaerobic digestion, biological filtration, and a two-stage subsurface flow constructed wetland, horizontal wetland (HSSFCW) vertical (VSSFCW), to treat rural sewage in southern Jiangsu. To optimize nitrogen phosphorus removal, the potential of six readily accessible industrial agricultural waste byproducts—including plastic fiber (PF), hollow brick crumbs (BC), blast furnace steel slag (BFS), zeolite–blast composite (ZBFS), zeolite (Zeo), soil—was systematically evaluated individually as substrates wetlands (VSSFCWs) under varying hydraulic retention times (HRTs, 0–120 h). The synergy among substrates, plants, microbes, coupled with effects time (HRT) on pollutant degradation performance, clarified. Results showed BFS achieved optimal comprehensive removal efficiencies (97.1% NH4+-N, 76.6% TN, 89.7% TP, 71.0% COD) at HRT = 12 h, while excelled NH4+-N/TP (99.5%/94.5%) zeolite–BFS specializing COD reduction (80.6%). System-wide microbial analysis revealed organic load (sludges from sedimentation tank [ST] tanks [ATs]), substrate type, rhizosphere critically shaped community structure, driving specialized pathways like sulfur autotrophic denitrification (Nitrospira) iron-mediated removal. Annual engineering validation demonstrated that optimized strategy “pretreatment unit for control—vertical enhanced removal” stable effluent quality compliance Grade 1-A standard domestic discharge after treatment facilities, without addition external carbon sources or exogenous inoculants. This low-carbon operation long-term stability position it an alternative energy-intensive activated sludge membrane-based systems resource-limited settings.

Язык: Английский

Процитировано

0