Biotic and Abiotic Factors Affecting Soil C, N, P and Their Stoichiometries under Different Land-Use Types in a Karst Agricultural Watershed, China DOI Creative Commons
Gang Hu, Xiaoxing Huang, Siyu Chen

et al.

Agriculture, Journal Year: 2024, Volume and Issue: 14(7), P. 1083 - 1083

Published: July 5, 2024

Comprehending the impacts of land-use type on soil nutrition and stoichiometry in watersheds is crucial for effective regional ecosystem management. However, a deeper understanding influence karst agricultural still lacking. Here, we analyzed contents, stoichiometries, drivers topsoil C, N, P watershed China, focusing six types: paddy fields, dry farmland, tussock land, shrubland, shrubby woodland. We found that woodland exhibited significantly higher organic carbon (SOC) content than other types except shrubland. Moreover, highest total nitrogen (TN) phosphorus (TP) contents compared with types. C/N N/P ratios did not vary type, whereas farmland (18.68) showed lower C/P ratio (39), shrubland (39.92), fields (34.87). In addition, our results revealed pH, catalase invertase activity, bacterial actinomycetes abundance influenced stoichiometry. These findings reveal interactions between multiple biotic abiotic factors drive variability stoichiometry, offering valuable insight land improvement ecological management watersheds.

Language: Английский

Effects of Litter Input on Soil Enzyme Activities and Their Stoichiometric Ratios in Sandy Soil DOI Creative Commons
Haiyan Gao, Shengnan Zhang, Zhiguo Yang

et al.

Agronomy, Journal Year: 2025, Volume and Issue: 15(5), P. 1152 - 1152

Published: May 8, 2025

Litter serves as a crucial source of soil nutrients in sandy land ecosystems. Soil enzyme activities and their stoichiometric ratios act essential “bridges” linking microbial metabolism with nutrient cycling, thereby reflecting the availability sensitivity to substrate limitations. To investigate effects litter quality changes on nutrients, activities, land, leaf surface were collected from four sand-fixing forests Mu Us Sandy Land, including YC (Corethrodendron fruticosum), NT (Caragana korshinskii), ZSH (Amorpha fruticose), SL (Salix cheilophila). These samples then used for indoor cultivation. Experiments these types carried out; one treatment no added served control. Our aim was systematically study changing characteristics related carbon, nitrogen, phosphorus different inputs. The results indicate following: (1) Compared control (CK), addition all significantly increased organic total alkaline nitrogen contents. dissolved biomass carbon (MBC), (MBN). (2) had activity, showing increasing trends overall. A chemical analysis activity revealed that limited phosphorus. After ZSH, NT, litter, enzymatic C/P acquisition ratio (EC/P) N/P (EN/P) decreased significantly, alleviating limitation C/N (EC/N) nitrogen. (3) correlation showed varying degrees ratio. redundancy show MBN, TN, MBC/MBN, available key factors influencing ratios. provide reference cycling during restoration, they data support development fragile ecosystem models context global change.

Language: Английский

Citations

0
Effects of drip irrigation on yield, soil fertility and soil enzyme activity of different potato varieties in Northwest China DOI Creative Commons
Fan Zhang,

Mengru Chen,

Jintao Fu

et al.

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 14

Published: Aug. 29, 2023

The effects of different irrigation and fertilization on potato yield, soil fertility enzyme activity varieties under drip mode were studied, which could provide support for selecting the best in Northwest China. Three factors three levels orthogonal experimental design method, a total nine treatments. W1 (100% crop evapotranspiration (ETC)), W2 (80% ETC) W3 (60% ETC). F1 (N-P2O5-K2O, 240-120-300 kg ha-1), F2 (180-90-225 ha-1) F3 (120-60-150 ha-1). V1 (Feiuritar), V2 (Longshu7) V3 (Qingshu 9). results showed that had significant root zone. highest yield T5 (80%ETC, 180-90-225 ha-1, Qingshu 9) was 49,222.3 ha-1. With increase fertilizer application rate, zone increased first then decreased, but electrical conductivity (SEC), nitrate-N content (SNNC), alkali-hydrolyzable nitrogen (SAHC), available potassium (AK), phosphorus (AP), ammonium-N (SANC) organic matter (SOM) continuously. catalase activity, urease sucrase at 2.81% 22.2%, 1.84% 7.04%, 8.26% 9.62%, 5.34% 13.36% higher than those W3, respectively. overall trend water content, nutrient 0-20 cm >20-40 >40-60 layer. There many affecting tuber among pH value key factors. treatment to improve yield.

Language: Английский

Citations

8
Unraveling the relationship between soil carbon-degrading enzyme activity and carbon fraction under biogas slurry topdressing DOI

Xiaoyang Liang,

Hang Wang, Chuanjuan Wang

et al.

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 356, P. 120641 - 120641

Published: March 21, 2024

Language: Английский

Citations

3
The Potential Impact of Long-Term Copper Fungicide Sprays on Soil Health in Avocado Orchards DOI Open Access
Dumsane Themba Matse,

Thangavelautham Geretharan,

Eileen F. van Gorp

et al.

Environments, Journal Year: 2024, Volume and Issue: 11(6), P. 109 - 109

Published: May 25, 2024

The long-term use of copper (Cu)-based fungicide sprays in orchards is associated with changes soil Cu levels. However, there a gap knowledge regarding the potential accumulation and impacts on microbial structure. This study assessed possibility different avocado orchard farms further evaluated effect activities. Soil levels were quantified Tauranga Northland, three analysed each experimental location. All both sites received Cu-based for over eight years. samples collected at 0–20 cm depth from all six orchards. total bioavailable Cu, chemical properties, biomass, dehydrogenase activity, alkaline phosphatase acid activity measured. results revealed that concentrations 81.3 0.32, 196.7 0.82, 33.6 0.31 mg kg−1 Farms 1, 2, 3, respectively. In Northland orchards, 54.5 0.06, 18.4 0.77, 46 0.34 Farm Five out this had greater than 30 reported New Zealand native land. magnitude was linked pH C content. No clear trend observed between activity. Our demonstrated can elevate soils. Mitigation strategies need to be explored abate

Language: Английский

Citations

1
Long-term fertilizer application alters microbial resource limitations in soil aggregates via nutrient and microbial resource allocation DOI
Xiangjie Wang, Tao Sun,

Xiali Mao

et al.

Plant and Soil, Journal Year: 2024, Volume and Issue: unknown

Published: July 11, 2024

Language: Английский

Citations

1
Altered intra-annual precipitation patterns affect the N-limitation status of soil microorganisms in a semiarid alpine grassland DOI Creative Commons
Qian Wan, Lei Li, Bo Liu

et al.

Ecological Indicators, Journal Year: 2023, Volume and Issue: 158, P. 111457 - 111457

Published: Dec. 18, 2023

The ongoing intensification of the hydrological cycle due to global climate change alters intra-annual precipitation variability. Changes in patterns lead disparities soil moisture; however, responses extracellular enzyme activities (EEAs) and microbial metabolism limitations them is unclear. This study conducted an situ field experiment alpine grasslands Kunlun Mountains simulate same amount but distribution time within plant growing season. We examined effects variability on stoichiometry topsoil (0–5 5–20 cm) properties, biomass, EEAs. Results showed that altered significantly increased moisture's disparity index (D) by 57 %–89 %. activity nitrogen-acquiring enzymes (L-leucine aminopeptidase) was 20.82–32.08 % (P < 0.05) with precipitation, while phosphorus-acquiring (Acid phosphatase) carbon-acquiring (β-glucosidase) both decrease 9.25–23.35 17.86–33.04 %, respectively 0.05). determined microorganisms region were metabolism-limited nitrogen (vector angles 45◦), exacerbated limitation (decrescent vector angles) alleviated carbon (shortened length). In addition, EEAs can be interactively influenced biotic abiotic factors, factors (i.e., D, organic content, total content) having a stronger effect. Our provides effective strategy for regulating EEAs, contributes developing nutrient management restoration strategies semiarid grassland ecosystems.

Language: Английский

Citations

3
Effect of forest planting patterns on the formation of soil organic carbon during litter lignocellulose degradation from a microbial perspective DOI Creative Commons
Di Wu,

Changwei Yin,

Yuxin Fan

et al.

Frontiers in Microbiology, Journal Year: 2023, Volume and Issue: 14

Published: Dec. 22, 2023

Litter decomposition is an important source of soil organic carbon, and it plays a key role in maintaining the stability forest ecosystems. The microbial mechanism carbon (SOC) formation different urban planting patterns during litter lignocellulose degradation still unclear. genes, microbes, metabolites process SOC were determined by metagenomics metabolomics layers patterns, including three types broadleaf forests (BP forests), coniferous (CP two mixed (MCBP forests). results indicated that cellulose, hemicellulose, lignin concentrations from undecomposed layer to totally decomposed decreased 70.07, 86.83, 73.04% for CP litter; 74.30, 93.80, 77.55% BP 62.51, 48.58, 90.61% MCBP litter, respectively. was higher than 38.06 94.43% 0–10 cm 38.55 20.87% 10–20 layer, Additionally, gene abundances glycoside hydrolases (GHs) polysaccharide lyases (PLs) those forests. Amino acid metabolism, sugar TCA cAMP signaling metabolism mainly between forests, while cycle, pyruvate phenylalanine tyrosine decomposition. ammonia nitrogen hemicellulose factors driving nitrogen, lignocellulose-degrading genes For pH, formation. Our findings revealed had stronger performance SOC. This study provided theoretical basis flow transformation nutrients management patterns.

Language: Английский

Citations

3
Improvement in gravel-mulched land soil nutrient and bacterial community diversity with Lonicera japonica DOI Creative Commons
Xing Wang, Bin Ma, Liu Hua

et al.

Frontiers in Microbiology, Journal Year: 2023, Volume and Issue: 14

Published: Dec. 7, 2023

Gravel-mulched land in China suffers from poor natural resources and fragile ecological environment, posing a challenge to effective restoration of function. Lonicera japonica, traditional Chinese herb used for treating human diseases, is highly adaptable resilient plant species, can effectively improve the soil properties, may have important implications ecology economy gravel-mulched land. A study was conducted field measure impact planting L. japonica (including control (CK), 1-year, 2-year, 4-year cultivation plants) on (i) dynamic changes nutrient enzyme activity (ii) rhizosphere microbial community structure characteristics. We found that concentration organic carbon, available nitrogen, phosphorus potassium after 1-4 years increased by 11-409%. The urease, phosphatase catalase activities were 11-560%, with highest plants. pH value gradually decreased cultivation. improved environments bacterial diversity. Planting significantly ACE, Chao1 index, Simpson Shannon-Wiener index. Firmicutes, Proteobacteria Bacteroidetes observed dominant phyla. relative abundance eight genera, including Streptococcus, Veillonella Rothia, reduced more than 1%. Taken together, these indicators suggest short term would be cost-effective strategy combat degradation ecosystem.

Language: Английский

Citations

2
Unraveling Microbial Carbon Use Efficiency in Global Grassland Ecosystems: Integrating Ecoenzymatic Stoichiometry and Microbial Nutrient Limitation DOI

shenggang chen,

Yaqi Zhang, Mengyao Wu

et al.

Published: Jan. 1, 2024

Language: Английский

Citations

0
Sustainable Management Technique for Recalcitrant Leaf Litter of Mesua Ferrea L. in Avenue Plantations DOI Open Access
Nirigi Linggi, Ajay Bharti, S. Sureshkumar Singh

et al.

Current World Environment, Journal Year: 2024, Volume and Issue: 19(1), P. 174 - 184

Published: May 10, 2024

Avenue plantation produces a significant amount of leaf litter throughout the year, and sustainable management is primary concern in various establishments. Mesua ferrea L. (MF) widely grown avenue tree species that enormous amounts year. The remains undecomposed natural conditions for long time (2-3 years), requiring labour-intensive management. rate decomposition, nutrient dynamics microbial involved decomposition process has been studied by modified litterbag method using intact shredded MF litter. results study revealed 50% biomass loss from within 120 days as compared to negligible control treatment. percentage nutrients released followed same pattern samples. decay constant values were observed 1.99, 1.92 0.33 shredded, treatments, respectively. Penicillium with 12 isolates was recorded most dominant cellulose-degrading fungi during embedding soil significantly reduced required It concluded can enhance rapid while improving fertility. proposed technique may be employed particular other general.

Language: Английский

Citations

0