Mechanisms of N2O Emission in Drip-Irrigated Saline Soils: Unraveling the Role of Soil Moisture Variation in Nitrification and Denitrification DOI Creative Commons
Fang Zhang, Zhi Qu, Qian Zhao

et al.

Agronomy, Journal Year: 2024, Volume and Issue: 15(1), P. 10 - 10

Published: Dec. 25, 2024

Drip irrigation generates structural bodies in soil, forming layered structures with moisture content gradients. There are four typical soil characteristic values this concentric structure as saturation capacity (θs), field (FC), 60% (60% FC), and 30% (30% FC). In study, we simulated these water to conduct an indoor incubation experiment under three different conditions: aerobic (O), 10 pa acetylene (OC), anaerobic (AO). The results indicate that saturated content, denitrification conditions leads high N2O emissions; at holding capacity, nitrification dominates low emissions, which is most conducive reduction greenhouse gas emission mitigation; of microbial activity decreases, inhibiting nitrification, denitrification, emissions. Our research has found when conducting drip was reduced by 99%, increased 70%, enhanced 5%. Therefore, during irrigation, the position flow rate dripper should be controlled reduce areas, maintain aeration, control below promote process, improve nitrogen use efficiency. study elucidates characteristics transformation emissions across various contents within conditions, providing a scientific basis for formulation precise management practices strategies efficient utilization.

Language: Английский

Covalent immobilization: A review from an enzyme perspective DOI Creative Commons

Theja Prabhakar,

Jacopo Giaretta, Riccardo Zulli

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 158054 - 158054

Published: Nov. 1, 2024

Language: Английский

Citations

14
Mitigating the Greenhouse Gases Intensity and Improving Fine Rice Productivity with Coated Urea Fertilizers in Semi-Arid Conditions DOI
Adnan Mustafa, Imran Khan,

Muhammad Umer Chattha

et al.

Journal of soil science and plant nutrition, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 17, 2025

Language: Английский

Citations

0
Soil greenhouse gas emissions, yield, and water-use efficiency affected by maize-soybean intercropping under long-term nitrogen fertilization DOI
Md Raseduzzaman, M. R. Ali, Wenxu Dong

et al.

Field Crops Research, Journal Year: 2025, Volume and Issue: 326, P. 109861 - 109861

Published: March 22, 2025

Language: Английский

Citations

0
Reduced Irrigation Levels Maintain Nematode Abundance and Soil Enzyme Activities in Hazelnut (Corylus Avellana L.) Orchards in South-Central Chile DOI
Matías Betancur, Raúl Ochoa‐Hueso, Jorge Retamal-Salgado

et al.

Journal of soil science and plant nutrition, Journal Year: 2025, Volume and Issue: unknown

Published: April 23, 2025

Language: Английский

Citations

0
Understanding the mechanisms of hydrolytic enzyme mediated organic matter decomposition under different land covers within a subtropical preserve DOI Creative Commons
Suraj Melkani,

Noel Manirakiza,

Abul Rabbany

et al.

Frontiers in Environmental Science, Journal Year: 2025, Volume and Issue: 13

Published: April 24, 2025

Soil Organic Matter (SOM) decomposition, vital to the carbon cycle, is influenced by land cover, hydrological conditions, and soil properties. However, understanding of how hydrolytic enzymes involved in SOM turnover vary under these factors remains limited. To address this, a study was conducted sub-tropical preserve South Florida assess enzyme activities across 23 diverse covers (Categorized into five ecosystems: A-Upland Forests, B-Wetland ecosystems, C-Shrub D-Range Areas, E-Barren ecosystems) during wet dry seasons. The assessed were β-1,4 glucosidase (βG), β-1,4-N-acetyl glucosaminidase (β-NAG), Acid Phosphatase (AP), Aryl Sulfatase (AS). A weighted index termed Hydrolytic Enzyme Decomposition Indicator (HEDI) derived using principal component analysis summarize overall enzymatic activity as an indicator decomposition. results showed that among covers, βG, β-NAG, AP, AS season ranged from 18.40 327.20, 14.71–351.90, 302.89–10,185.80, 26.51–1,745.75 μg PNP/g soil/hr, respectively, while season, for all except higher, ranging 4.08 398.66, 21.72–1,118.97, 372.38–11,960.36, 28.26–1,475.09 soil/hr. Among βG β-NAG seasonal variability, with consistently higher B-Range C-Shrub. AP minimal variation, showing lower D-Barren ecosystems. HEDI values Forests exhibited widest range (−0.962–1.613), indicating decomposition rates, Barren ecosystems low (−0.928 −0.916), suggesting Correlation revealed positive relationships between properties such (0.51–0.59), active (0.46–0.58), protein (0.27–0.40), cation exchange capacity (0.28–0.40), bulk density negative correlations (−0.31 −0.50). Overall, this highlights necessity considering complex interactions properties, vegetation, moisture,

Language: Английский

Citations

0
From Residue to Resource: A Physicochemical and Microbiological Analysis of Soil Microbial Communities through Film Mulch-Enhanced Rice Straw Return Strategies DOI Creative Commons
Xinyue Wang, J. Huang, Lili Yang

et al.

Agronomy, Journal Year: 2024, Volume and Issue: 14(5), P. 1001 - 1001

Published: May 9, 2024

Promoting rice straw in situ return is an important strategy for improving soil quality. From 2018 to 2021, we investigated the effects of with microbial agents and film covering technology on physical chemical properties at different layer depths, as well community structure, Hunan, southern China. This study was designed evaluate (T1), mulch (T2), application combined (T3) physicochemical after return. The results show that, three years continuous treatment, T3 significantly increased temperature by 17.76–22.97%, T2 water content 34.27–46.23%, T1 pH. addition resulted a notable increase both number OTUs Chao1 index microorganisms. Additionally, model promoting (the agent mulch) shown promote growth beneficial RDA used investigation, findings showed that microorganisms were influenced TOC content, pH, content. These provide evidence effective method accelerating decomposition late guiding improvement tobacco–rice rotation regions.

Language: Английский

Citations

1
The Response of Soil Respiration to Temperature and Humidity in the Thermokarst Depression Zone of the Headwater Wetlands of Qinghai Lake DOI Creative Commons

Yahui Mao,

Kelong Chen,

Wei Ji

et al.

Biology, Journal Year: 2024, Volume and Issue: 13(6), P. 437 - 437

Published: June 14, 2024

As the climate warms, thickening of active layer permafrost has led to melting and surface collapse, forming thermokarst landforms. These changes significantly impact regional vegetation, soil physicochemical properties, hydrological processes, thereby exacerbating carbon cycling. This study analyzed relationship between respiration rate (Rs), temperature (T), volumetric water content (VWC) in depression zone headwater wetlands Qinghai Lake, revealing their influence on these parameters. Results showed a significant positive correlation Rs (p < 0.001), negative VWC 0.001). The inhibitory effect was stronger than under natural conditions 0.05). Single-factor models indicated that temperature-driven model had higher explanatory power for variation both (R2 = 0.509) 0.414), while humidity-driven lower power. Dual-factor further improved power, slightly more so zone. indicates humidity jointly drive Rs. Additionally, during daytime, conditions, increased inhibited At night, significantly. sensitivity (Q10) values were 3.32 1.80 respectively, indicating at night highlights complexity responses Lake’s wetlands, contributing understanding cycling wetland ecosystems predicting emissions change.

Language: Английский

Citations

1
Sustainable development in the human environment: Current and future challenges DOI
Krystian Obolewski, Roman Rolbiecki, Atılgan Atılgan

et al.

Ecohydrology & Hydrobiology, Journal Year: 2024, Volume and Issue: 24(3), P. 543 - 546

Published: May 28, 2024

Language: Английский

Citations

0
Modeling adaptation strategies to climate change in prospect of agriculture DOI

Sidra Balooch,

Adeel Abbas, Wajid Ali Khattak

et al.

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 283 - 305

Published: Oct. 11, 2024

Language: Английский

Citations

0
Improving the Microenvironmental of Spring Soybean Culture and Increasing the Yield by Optimization of Water and Nitrogen DOI Creative Commons
Lei Zhang, H. L. Wang, Yang Gao

et al.

Agronomy, Journal Year: 2024, Volume and Issue: 14(12), P. 2814 - 2814

Published: Nov. 26, 2024

Optimizing water and nitrogen management is an effective measure to reduce fertilizer loss environmental pollution risks. This study aims quantify the impacts of different strategies on soil microenvironment yield spring soybeans in southern Xinjiang. In this study, two irrigation quotas were established: W1—36 mm (low water) W2—45 (high water). Three application gradients low (150 kg·hm−2, N1), medium (225 N2), high (300 k N3). The analysis focused physicochemical properties, enzyme activities, microbial community diversity, soybean yield, quality changes. results indicate that activities nitrate reductase urease, as well total content, increased with higher rates. W2N3 treatment significantly 0.15 4.39, 0.18 1.04, 0.31 1.73 times. (p < 0.05). Alkaline protease sucrase amounts, while their response exhibited initial increase followed by a decrease. W2N2 0.10 0.34 0.07 1.46 times Irrigation affected bacterial structure, coupling effects notably influenced abundance Increases enhanced diversity species abundance. Partial least squares path indicated water–nitrogen directly indirectly produced positive quality. An quota 4500 m3 hm−2 rate 300 kg·hm−2 can ensure enhancing findings provide insights into mechanisms communities management, clarify relationship between microenvironments soybeans, identify optimal fertilization for yield. research offers theoretical basis technical support cultivation

Language: Английский

Citations

0