Grazing and nitrogen addition restructure the spatial heterogeneity of soil microbial community structure and enzymatic activities DOI

Chengliang Wang,

Rui Zhang, Leena Vilonen

et al.

Functional Ecology, Journal Year: 2021, Volume and Issue: 35(12), P. 2763 - 2777

Published: Sept. 22, 2021

Abstract In grassland ecosystems, large herbivorous animal grazing activity and increasing nitrogen deposition strongly alter microbial community structure function. Understanding the effects of addition on spatial heterogeneity in soil structure, enzymatic activities underlying mechanisms are crucial for making better predictions organic matter dynamics nutrient cycling. We examined associated with changes microclimate, characteristics, plant biomass responses to using a manipulative experiment control (CK), (G), (N) plus (NG) treatments Leymus chinensis meadow steppe, north‐eastern China. The results demonstrated that showed high level dependence [C/(C + C0) ≥ 0.9] CK plot. G, N NG not only reduced variability but also reshaped links between enzyme structure. Litter biomass, temperature nutrients (soil dissolved inorganic or carbon) explained 21%–27% treatment pH was strongest driver activities. Meanwhile, homogenization water content induced by determinant reduction combination physico‐chemical properties (bulk density, nitrogen), root 32%–43% G treatment, had additive total PLFAs homogenizing biomass. Plant were major drivers under NG. NG, change dominated addition. Regardless grazing, facilitated correlation Overall, our revealed pattern shift due addition, highlighting role has L. steppe. A free Plain Language Summary can be found within Supporting Information this article.

Language: Английский

Long-term regional evidence of the effects of livestock grazing on soil microbial community structure and functions in surface and deep soil layers DOI
Ying Wu, Dima Chen, Manuel Delgado‐Baquerizo

et al.

Soil Biology and Biochemistry, Journal Year: 2022, Volume and Issue: 168, P. 108629 - 108629

Published: March 8, 2022

Language: Английский

Citations

57
Response of soil nutrients and stoichiometry to grazing management in alpine grassland on the Qinghai-Tibet Plateau DOI
Chenli Liu, Wenlong Li, Jing Xu

et al.

Soil and Tillage Research, Journal Year: 2020, Volume and Issue: 206, P. 104822 - 104822

Published: Nov. 5, 2020

Language: Английский

Citations

61
Effect of grassland degradation on soil quality and soil biotic community in a semi-arid temperate steppe DOI Creative Commons
Xu Han, Yuhui Li,

Xiaofang Du

et al.

Ecological Processes, Journal Year: 2020, Volume and Issue: 9(1)

Published: Nov. 11, 2020

Abstract Grasslands provide a number of ecosystem services for human society. Degradation grasslands results in the loss biodiversity and leads to deterioration functions. In order accurately assess influence grassland degradation on belowground ecosystems, we conducted experiments temperate steppe with different levels investigated soil quality biotic communities. Our showed that significantly decreased quality, lower values index (SQI) observed degraded than meadow from forest-steppe ecotone. Changes SQI along gradient were positively correlated carbon stock aboveground biomass, negatively root shoot ratio. Nematode trophic diversity ratio fungal bacterial PLFA The dissimilarities microbial nematode community composition increased changes index. indicate based minimum data sets could effectively function. restore grasslands, key contributors such as carbon, should be taken priority basis revitalizing

Language: Английский

Citations

54
Effects of grazing on grassland biomass and biodiversity: A global synthesis DOI

Fengfeng Cao,

Weibin Li,

Yuan Jiang

et al.

Field Crops Research, Journal Year: 2023, Volume and Issue: 306, P. 109204 - 109204

Published: Dec. 2, 2023

Language: Английский

Citations

22
Comprehensive analysis of grazing intensity impacts alpine grasslands across the Qinghai-Tibetan Plateau: A meta-analysis DOI Creative Commons
Zhenchao Zhang, Yiran Zhao, Hao Lin

et al.

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 13

Published: Jan. 17, 2023

Livestock grazing is a dominant practice in alpine grasslands and plays crucial role the ecosystem service of Qinghai-Tibetan Plateau. The effects on highly depends intensity. Up to now, we still lack comprehensive understanding general responses different intensities over broad geographic scales across Here, conducted meta-analysis explore plant characteristics soil properties intensity Plateau based 52 peer-reviewed literatures. results showed that did not change belowground biomass, while significantly increased ratio root shoot (P< 0.05). Light exhibited no significant richness, Shannon-Wiener diversity, water content, bulk density, nutrients, microbial biomass carbon, nitrogen (P > Moderate richness decreased organic carbon total Heavy nitrogen, density These findings suggest overgrazing closely associated with grassland degradation, moderate sustainable provide animal production simultaneously maintain ecological functions for

Language: Английский

Citations

17
Climate shifts biomass allocation by altering plant functional group in alpine vs. temperate grasslands on both Inner Mongolian and Tibetan plateaus DOI
Wenjuan Wu, Ruojun Sun, Guang Zhao

et al.

CATENA, Journal Year: 2024, Volume and Issue: 238, P. 107887 - 107887

Published: Feb. 20, 2024

Language: Английский

Citations

8
Large herbivore grazing accelerates litter decomposition in terrestrial ecosystems DOI
Ao Jiang, Tserang Donko Mipam, Luhuai Jing

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 922, P. 171288 - 171288

Published: Feb. 27, 2024

Language: Английский

Citations

8
Optimizing grazing exclusion duration for carbon sequestration in grasslands: Incorporating temporal heterogeneity of aboveground biomass and soil organic carbon DOI
Lingfan Wan, Guohua Liu, Jian Sun

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 927, P. 172006 - 172006

Published: March 28, 2024

Language: Английский

Citations

6
Effects of Different Grazing Disturbances on the Plant Diversity and Ecological Functions of Alpine Grassland Ecosystem on the Qinghai-Tibetan Plateau DOI Creative Commons
Wenlong Li, Chenli Liu,

Wenying Wang

et al.

Frontiers in Plant Science, Journal Year: 2021, Volume and Issue: 12

Published: Dec. 13, 2021

Grazing is one of the main human disturbance factors in alpine grassland on Qinghai-Tibet Plateau (QTP), which can directly or indirectly influence community structures and ecological functions ecosystems. However, despite extensive field grazing experiments, there currently no consensus how different management approaches affect diversity, soil carbon (C), nitrogen (N). Here, we conducted a meta-analysis 70 peer-reviewed publications to evaluate general response 11 variables related ecosystems plant diversity grazing. Overall, results showed that significantly increased species richness, Shannon-Wiener index, Pielou evenness index values by 9.89% (95% CI: 2.75-17.09%), 7.28% 1.68-13.62%), 3.74% 1.40-6.52%), respectively. Aboveground biomass (AGB) belowground (BGB) decreased, respectively, 41.91% -50.91 -32.88%) 17.68% -26.94 -8.52%). Soil organic (SOC), total (TN), C:N ratio, moisture decreased 13.06% -15.88 -10.15%), 12.62% -13.35 -8.61%), 3.27% -4.25 -2.09%), 20.75% -27.89 -13.61%), whereas, bulk density pH 17.46% 11.88-24.53%) 2.24% 1.01-3.64%), Specifically, moderate grazing, long-durations (>5 years), winter contributed increases index. AGB, BGB, SOC, TN, ratios decrease with enhanced intensity. The ratio SOC was positively associated AGB BGB but negatively Furthermore, effects TN varied duration, season, livestock type, type. findings suggest should synthesize other appropriate patterns, such as seasonal rotation and, furthermore, additional research QTP needed future.

Language: Английский

Citations

36
A Meta-Analysis on Degraded Alpine Grassland Mediated by Climate Factors: Enlightenment for Ecological Restoration DOI Creative Commons
Jiale Yu, Lingfan Wan, Guohua Liu

et al.

Frontiers in Plant Science, Journal Year: 2022, Volume and Issue: 12

Published: Jan. 7, 2022

Alpine grassland is the main ecosystem on Qinghai-Tibet Plateau (QTP). Degradation and restoration of alpine are related to function production, livelihood, wellbeing local people. Although a large number studies research degraded grassland, there debates about degradation patterns in different areas widely applicable ecological schemes due huge area QTP. In this study, we used meta-analysis method synthesize 80 individual published which were conducted examine aboveground underground characteristics non-degradation (ND), light (LD), moderate (MD), heavy (HD), extreme (ED) Results showed that biomass (AGB), belowground (BGB), Shannon-Wiener index (H'), soil moisture (SM), organic carbon (SOC), total nitrogen (TN), available (AN) gradually decreased along gradient, whereas bulk density (BD) pH increased. spite tendency desertification, losses other nutrients reduction enzymes, was no linear relationship between variations with gradient. Moreover, decreasing extent TN smaller higher precipitation temperature, AGB, SOC, larger corresponding variables stage ND during degradation. These findings suggest reseeding sward cleavage can be for grassland. Fencing fertilization lower temperature. Microbial enzymes should not restore scale QTP without detailed investigation analysis. Future pay more attention effects climate factors processes specific strategies regions

Language: Английский

Citations

23