Browsing by Author "Sun X"
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- ItemAssessing the win-win situation of forage production and soil organic carbon through a short-term active restoration strategy in alpine grasslands(Frontiers Media S.A., 2024-01-11) Wang Y; Wang Z; Kang Y; Zhang Z; Bao D; Sun X; Su JINTRODUCTION: Grassland degradation has seriously affected the ecological environment and human livelihood. To abate these, implementing effective management strategies to restore and improve the service functions and productivity of degraded grasslands is crucial. METHODS: To evaluate the influences of restoration measures combined with different grazing intensities on short-term (1 year) grassland restoration, the changes in soil physicochemical properties, as well as plant traits under restoration measures of different grazing intensities, reseeding, and fertilization, were analyzed. RESULTS: Soil organic carbon (SOC) increased to varying degrees, whereas available nutrients decreased under all combined restoration measures. Reseeding, alone and in combination with fertilization, substantially increased SOC, improved grassland vegetation status, and enhanced grassland productivity. The aboveground biomass of Gramineae and the total aboveground biomass increased under the combined restoration measures of transferring livestock out of the pasture 45 days in advance, reseeding, and fertilization (T4). Redundancy analysis revealed a strong correlation between grassland vegetation characteristics, SOC, and available potassium. Considering soil and vegetation factors, the short-term results suggested that the combination measures in T4had the most marked positive impact on grassland restoration. DISCUSSION: These findings offer valuable theoretical insights for the ecological restoration of degraded grasslands in alpine regions.
- ItemCan fishery subsidy improve fishermen’s income?——evidence from China’s coastal areas(Frontiers Media S.A., 2025-07-09) Li Y; Pham Do KH; Shakur S; Sun X; Paramo JNumerous studies have demonstrated that fishery subsidies play a role in income redistribution, potentially contributing to economic inequality. Additionally, since fishermen are highly dependent on the marine environment, there may be a connection between marine pollution and their income levels. This study explores the effects of fishery subsidies and marine environmental pollution on fishermen’s income and income inequality using panel data from 11 coastal provinces and municipalities in China from 2006 to 2020. Applying panel fixed effect model and quantile regression models, the results show that fishery subsidies significantly increase income, but disproportionately benefit higher-income fishermen, thereby exacerbating income inequality. Moreover, the relationship between marine pollution and income is non-linear: moderate pollution is associated with income gains, while severe pollution reduces income. These findings suggest that subsidy policies should be better targeted, and stricter marine environmental regulation is necessary to protect vulnerable fishing communities
- ItemDietary Supplementation of Yeast Culture Into Pelleted Total Mixed Rations Improves the Growth Performance of Fattening Lambs(Frontiers Media S.A., 2021-05) Song B; Wu T; You P; Wang H; Burke JL; Kang K; Yu W; Wang M; Li B; He Y; Huo Q; Li C; Tian W; Li R; Li J; Wang C; Sun XThere is a growing interest in the use of yeast (Saccharomyces cerevisiae) culture (YC) for the enhancement of growth performance and general animal health. Grain-based pelleted total mixed rations (TMR) are emerging in intensive sheep farming systems, but it is uncertain if the process of pelleting results in YC becoming ineffective. This study aimed to examine the effects of YC supplemented to pelleted TMR at two proportions of corn in the diet on animal performance, feed digestion, blood parameters, rumen fermentation, and microbial community in fattening lambs. A 2 × 2 factorial design was adopted with two experimental factors and two levels in each factor, resulting in four treatments: (1) low proportion of corn in the diet (LC; 350 g corn/kg diet) without YC, (2) LC with YC (5 g/kg diet), (3) high proportion of corn in the diet (HC; 600 g corn/kg diet) without YC, and (4) HC with YC. Fifty-six 3-month-old male F2 hybrids of thin-tailed sheep and Northeast fine-wool sheep with a liveweight of 19.9 ± 2.7 kg were randomly assigned to the four treatment groups with an equal number of animals in each group. The results showed that live yeast cells could not survive during pelleting, and thus, any biological effects of the YC were the result of feeding dead yeast and the metabolites of yeast fermentation rather than live yeast cells. The supplementation of YC resulted in 31.1 g/day more average daily gain regardless of the proportion of corn in the diet with unchanged feed intake during the 56-day growth measurement period. The digestibility of neutral detergent fibre and acid detergent fibre was increased, but the digestibility of dry matter, organic matter, and crude protein was not affected by YC. The supplementation of YC altered the rumen bacterial population and species, but the most abundant phyla Bacteroidetes, Firmicutes, and Proteobacteria remained unchanged. This study indicates that YC products can be supplemented to pelleted TMR for improved lamb growth performance, although live yeast cells are inactive after pelleting. The improved performance could be attributed to improved fibre digestibility.
- ItemGlobal fine-resolution data on springtail abundance and community structure(Springer Nature Limited, 2024-01-03) Potapov AM; Chen T-W; Striuchkova AV; Alatalo JM; Alexandre D; Arbea J; Ashton T; Ashwood F; Babenko AB; Bandyopadhyaya I; Baretta CRDM; Baretta D; Barnes AD; Bellini BC; Bendjaballah M; Berg MP; Bernava V; Bokhorst S; Bokova AI; Bolger T; Bouchard M; Brito RA; Buchori D; Castaño-Meneses G; Chauvat M; Chomel M; Chow Y; Chown SL; Classen AT; Cortet J; Čuchta P; de la Pedrosa AM; De Lima ECA; Deharveng LE; Doblas Miranda E; Drescher J; Eisenhauer N; Ellers J; Ferlian O; Ferreira SSD; Ferreira AS; Fiera C; Filser J; Franken O; Fujii S; Koudji EG; Gao M; Gendreau-Berthiaume B; Gers C; Greve M; Hamra-Kroua S; Handa IT; Hasegawa M; Heiniger C; Hishi T; Holmstrup M; Homet P; Høye TT; Ivask M; Jacques B; Janion-Scheepers C; Jochum M; Joimel S; Jorge BCS; Juceviča E; Kapinga EM; Kováč Ľ; Krab EJ; Krogh PH; Kuu A; Kuznetsova N; Lam WN; Lin D; Lindo Z; Liu AWP; Lu J-Z; Luciáñez MJ; Marx MT; Mawan A; McCary MA; Minor MA; Mitchell GI; Moreno D; Nakamori T; Negri I; Nielsen UN; Ochoa-Hueso R; Oliveira Filho LCI; Palacios-Vargas JG; Pollierer MM; Ponge J-F; Potapov MB; Querner P; Rai B; Raschmanová N; Rashid MI; Raymond-Léonard LJ; Reis AS; Ross GM; Rousseau L; Russell DJ; Saifutdinov RA; Salmon S; Santonja M; Saraeva AK; Sayer EJ; Scheunemann N; Scholz C; Seeber J; Shaw P; Shveenkova YB; Slade EM; Stebaeva S; Sterzynska M; Sun X; Susanti WI; Taskaeva AA; Tay LS; Thakur MP; Treasure AM; Tsiafouli M; Twala MN; Uvarov AV; Venier LA; Widenfalk LA; Widyastuti R; Winck B; Winkler D; Wu D; Xie Z; Yin R; Zampaulo RA; Zeppelini D; Zhang B; Zoughailech A; Ashford O; Klauberg-Filho O; Scheu SSpringtails (Collembola) inhabit soils from the Arctic to the Antarctic and comprise an estimated ~32% of all terrestrial arthropods on Earth. Here, we present a global, spatially-explicit database on springtail communities that includes 249,912 occurrences from 44,999 samples and 2,990 sites. These data are mainly raw sample-level records at the species level collected predominantly from private archives of the authors that were quality-controlled and taxonomically-standardised. Despite covering all continents, most of the sample-level data come from the European continent (82.5% of all samples) and represent four habitats: woodlands (57.4%), grasslands (14.0%), agrosystems (13.7%) and scrublands (9.0%). We included sampling by soil layers, and across seasons and years, representing temporal and spatial within-site variation in springtail communities. We also provided data use and sharing guidelines and R code to facilitate the use of the database by other researchers. This data paper describes a static version of the database at the publication date, but the database will be further expanded to include underrepresented regions and linked with trait data.
- ItemGlobally invariant metabolism but density-diversity mismatch in springtails(Springer Nature Limited, 2023-02-07) Potapov AM; Guerra CA; van den Hoogen J; Babenko A; Bellini BC; Berg MP; Chown SL; Deharveng L; Kováč Ľ; Kuznetsova NA; Ponge J-F; Potapov MB; Russell DJ; Alexandre D; Alatalo JM; Arbea JI; Bandyopadhyaya I; Bernava V; Bokhorst S; Bolger T; Castaño-Meneses G; Chauvat M; Chen T-W; Chomel M; Classen AT; Cortet J; Čuchta P; Manuela de la Pedrosa A; Ferreira SSD; Fiera C; Filser J; Franken O; Fujii S; Koudji EG; Gao M; Gendreau-Berthiaume B; Gomez-Pamies DF; Greve M; Tanya Handa I; Heiniger C; Holmstrup M; Homet P; Ivask M; Janion-Scheepers C; Jochum M; Joimel S; Claudia S Jorge B; Jucevica E; Ferlian O; Iuñes de Oliveira Filho LC; Klauberg-Filho O; Baretta D; Krab EJ; Kuu A; de Lima ECA; Lin D; Lindo Z; Liu A; Lu J-Z; Luciañez MJ; Marx MT; McCary MA; Minor MA; Nakamori T; Negri I; Ochoa-Hueso R; Palacios-Vargas JG; Pollierer MM; Querner P; Raschmanová N; Rashid MI; Raymond-Léonard LJ; Rousseau L; Saifutdinov RA; Salmon S; Sayer EJ; Scheunemann N; Scholz C; Seeber J; Shveenkova YB; Stebaeva SK; Sterzynska M; Sun X; Susanti WI; Taskaeva AA; Thakur MP; Tsiafouli MA; Turnbull MS; Twala MN; Uvarov AV; Venier LA; Widenfalk LA; Winck BR; Winkler D; Wu D; Xie Z; Yin R; Zeppelini D; Crowther TW; Eisenhauer N; Scheu SSoil life supports the functioning and biodiversity of terrestrial ecosystems. Springtails (Collembola) are among the most abundant soil arthropods regulating soil fertility and flow of energy through above- and belowground food webs. However, the global distribution of springtail diversity and density, and how these relate to energy fluxes remains unknown. Here, using a global dataset representing 2470 sites, we estimate the total soil springtail biomass at 27.5 megatons carbon, which is threefold higher than wild terrestrial vertebrates, and record peak densities up to 2 million individuals per square meter in the tundra. Despite a 20-fold biomass difference between the tundra and the tropics, springtail energy use (community metabolism) remains similar across the latitudinal gradient, owing to the changes in temperature with latitude. Neither springtail density nor community metabolism is predicted by local species richness, which is high in the tropics, but comparably high in some temperate forests and even tundra. Changes in springtail activity may emerge from latitudinal gradients in temperature, predation and resource limitation in soil communities. Contrasting relationships of biomass, diversity and activity of springtail communities with temperature suggest that climate warming will alter fundamental soil biodiversity metrics in different directions, potentially restructuring terrestrial food webs and affecting soil functioning.
- ItemInactivation of salmonella enterica serovar enteritidis on chicken eggshells using blue light(MDPI (Basel, Switzerland), 2021-08-10) Hu X; Sun X; Luo S; Wu S; Chu Z; Zhang X; Liu Z; Wu J; Wang X; Liu C; Wang X; Santini ASalmonella enterica serovar Enteritidis (S. Enteritidis) is a pathogen that poses a health risk. Blue light (BL), an emerging sanitization technology, was employed for the first time in the present study to inactivate S. Enteritidis on eggshell surfaces and its influence on maintaining eggshell freshness was investigated systematically. The results showed that 415 nm-BL irradiation at a dose of 360 J/cm2 reduced 5.19 log CFU/mL of S. Enteritidis in vitro. The test on eggshells inoculated with S. Enteritidis showed that a BL dose at 54.6 J/cm2 caused a 3.73 log CFU reduction per eggshell surface and the impact of BL inactivation could be sustained in post-5-week storage. The quality of the tested eggs (weight loss, yolk index, Haugh unit (HU) and albumen pH) demonstrated that BL treatments had negligible effects on the albumen pH of eggs. However, compared to the control, BL-treated eggs showed lower weight loss and higher HU after 5 weeks of storage at 25◦C and 65% humidity and yolk index in the control group could not be determined after 5 weeks of storage. Besides, the total amino acid content of the BL-treated egg was higher than the control, exhibiting an advantage of BL irradiation in maintaining the nutrient quality of whole eggs. The current study determined the efficacy of BL against S. Enteritidis on eggshell and suggested that BL could be an effective application in maintaining the freshness and quality of eggs.
