Effects of Biological Nitrogen Fixation and Nitrogen Deposition on Soil Microbial Communities in Karst Grassland Ecosystems DOI Creative Commons
Xin Liu, Rong Yang, Jie Zhao

et al.

Microorganisms, Journal Year: 2024, Volume and Issue: 12(12), P. 2429 - 2429

Published: Nov. 26, 2024

Diverse exogenous nitrogen (N) sources have a considerable impact on microbial community structure in terrestrial ecosystems. Legume plants and N deposition can relieve limitations increase net primary productivity. However, the differences their effects soil communities remain unclear. Here, responses of to legume-planting system simulated were examined karst grasslands Southwest China over five years by analyzing phospholipid fatty acids (PLFAs). The experiment included three treatments—legume plant introduction (NL, Indigofera atropurpurea), (ND, NH4NO3:10 g m−2 yr−1), control with no treatment. NL ND composition differed significantly. significantly reduced biomass bacteria, actinobacteria, arbuscular mycorrhizal fungi. insignificantly increased all groups. total amounts PLFAs fungal higher than ND. effect legume was more powerful that Overall, is beneficial terms increasing stabilizing grassland

Language: Английский

Intercropping Different Legumes in Tea Plantation Improves Soil Properties and Tea Quality Components by Regulating Rhizosphere Soil Microorganisms DOI Creative Commons

M. Chen,

Pinqian Zhou,

Qiang Bao

et al.

Agronomy, Journal Year: 2025, Volume and Issue: 15(3), P. 511 - 511

Published: Feb. 20, 2025

Intercropping legumes is an effective and sustainable planting pattern that has the benefit of decreasing chemical fertilizer input improving soil environment. However, effects reduction intercropping different on nutrients, microorganisms, tea quality remain elusive. Hereby, compared with 100% (CK), Sesbania cannabina (SC) Crotalaria pallida Blanco (CP) were selected as intercropped plant 70% to investigate its effect quality. The results showed monocropping, had greater concentrations labile organic matter, nitrate nitrogen, ammonia inorganic alkali-hydrolyzable nitrogen. systems significantly enhanced content non-ester-type catechins (catechin gallocatechin) ester-type (epicatechin gallate). In SC, gallocatechin, catechin, epicatechin gallate increased by 146.67%, 107.69%, 21.05%, respectively, while in CP, these three compounds 166.67%, 84.62%, 19.08%, respectively. Significant differences microbial composition also observed under systems. Actinobacteria, Rhodoplanes, Thaumarchaeota obviously Rhodanobacter, Pseudolabrys, Pedosphaera manifestly improved CP those monoculture. Moreover, abundances CNP cycling functional genes, such gpmB, mch, accD6, pgi-pmi, mcr, glmS, ACOX1 fadB (carbohydrate metabolism), nirD narI (nitrification), pmoB-amoB hao (dissimilatory N reduction), phoN (organic phosphoester hydrolysis). relationship between qualities was mainly established nutrition abundance C microorganisms. This study provides more information genes tea/legume plantations offers a basis for higher-performance pattern.

Language: Английский

Citations

1
Effects of Nitrogen Addition and Drought on Soil Microbial Diversity and Community Composition in a Young Tree Community DOI Open Access

Yanyan Bian,

Xingli Wu, Yulin Zhu

et al.

Forests, Journal Year: 2025, Volume and Issue: 16(2), P. 276 - 276

Published: Feb. 6, 2025

Soil microorganisms are well known to play a crucial role in carbon and nutrient cycling within terrestrial ecosystems. Numerous research efforts have demonstrated that nitrogen deposition can change forest soil microbial diversity community composition; however, it is still unclear how will affect the composition subtropical forests under background of increasing drought. Consequently, over period 2.5 years, we carried out an experiment using two N addition regimes three water treatment levels reveal effects nitrogen, drought, influence their interaction on microorganisms. Overall, found both drought decreased bacterial Shannon Simpson indices yet had no significant effect fungal diversity. In well-watered treatments, did not significantly reduce diversity, while moderate severe reducing by 27.05% 0.13%, respectively, treatment. Drought altered bacteria regardless addition. changed less composition. The content, fine root biomass, pH were correlated with composition, which explained 53.3%, 11.1%, 8.7% changes respectively. These results suggest may intensify inhibitory magnitude direction impact community.

Language: Английский

Citations

0
The combined nitrogen and phosphorus fertilizer application reduced soil multifunctionality in Qinghai-Tibet plateau grasslands, China DOI

Yang Wu,

Huakun Zhou, Wenjing Chen

et al.

European Journal of Soil Biology, Journal Year: 2024, Volume and Issue: 123, P. 103684 - 103684

Published: Oct. 12, 2024

Language: Английский

Citations

1
The Impact of Reduced N Fertilization Rates According to the “Farm to Fork” Strategy on the Environment and Human Health DOI Creative Commons
Katarzyna Kagan, Kamil Jonak, Agnieszka Wolińska

et al.

Applied Sciences, Journal Year: 2024, Volume and Issue: 14(22), P. 10726 - 10726

Published: Nov. 20, 2024

The use of synthetic fertilizers, including nitrogen [N] is an indispensable element in today’s agriculture. Through adequate fertilization, farmers have the opportunity to increase crop yields, which essential view growing population and demand for food. European Union’s “Farm Fork” [F2F] strategy, as part broader Green Deal, aims promote more sustainable agricultural practices by reducing chemical fertilizer 20% 2030. This initiative designed mitigate negative environmental impacts excessive N application, such soil water contamination, greenhouse gas emissions, biodiversity loss. In addition addressing ecosystem concerns, this strategy also reduce health risks associated with overuse, accumulation nitrates [NO3−] crops, can lead formation carcinogenic compounds. By integrating alternative fertilization methods, sector work toward resilient environmentally friendly systems while maintaining productivity. paper focuses on a summary current knowledge about consequences reduction its connection environment, human health.

Language: Английский

Citations

0
Effects of Biological Nitrogen Fixation and Nitrogen Deposition on Soil Microbial Communities in Karst Grassland Ecosystems DOI Creative Commons
Xin Liu, Rong Yang, Jie Zhao

et al.

Microorganisms, Journal Year: 2024, Volume and Issue: 12(12), P. 2429 - 2429

Published: Nov. 26, 2024

Diverse exogenous nitrogen (N) sources have a considerable impact on microbial community structure in terrestrial ecosystems. Legume plants and N deposition can relieve limitations increase net primary productivity. However, the differences their effects soil communities remain unclear. Here, responses of to legume-planting system simulated were examined karst grasslands Southwest China over five years by analyzing phospholipid fatty acids (PLFAs). The experiment included three treatments—legume plant introduction (NL, Indigofera atropurpurea), (ND, NH4NO3:10 g m−2 yr−1), control with no treatment. NL ND composition differed significantly. significantly reduced biomass bacteria, actinobacteria, arbuscular mycorrhizal fungi. insignificantly increased all groups. total amounts PLFAs fungal higher than ND. effect legume was more powerful that Overall, is beneficial terms increasing stabilizing grassland

Language: Английский

Citations

0