Reseeding improved productivity but not soil functions in the severely degraded alpine meadows on the Qinghai‐Tibetan Plateau

Restoration Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: March 5, 2025

Alpine meadows experienced severe degradation and undermined their capacity to support ecological functions such as water supply carbon storage. It is unclear whether reseeding grasslands over a dozen years for severely degraded alpine could succeed in restoring multiple the levels of original meadow ecosystems. Here, we examined changes five functions, including above‐ below‐ground productivity, soil holding capacity, organic stocks, erosion resistance before after degradation, well 14‐year grasslands. Results showed that significantly reduced plant species richness, changed community structure, declined functions. For grasslands, richness functional group composition not be restored ecosystems, capacity. Aboveground biomass sedge leguminous was still 58.9% 71.6% lower than those meadows, respectively. Overall, our results propose ecosystems except productivity. The indicated further restoration management measures were needed promote recovery ecosystem based on primary goals formation mattic epipedon

Language: Английский

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Disturbance diminishes the soil conservation potential of biological soil crusts due to patch fragmentation in drylands

CATENA, Journal Year: 2024, Volume and Issue: 238, P. 107878 - 107878

Published: Feb. 13, 2024

Language: Английский

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Effective microorganisms input efficiently improves the vegetation and microbial community of degraded alpine grassland

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 14

Published: Jan. 15, 2024

Soil beneficial microorganism deficiency in the degraded grasslands have emerged as major factors negatively impacting soil quality and vegetation productivity. EM (effective microorganisms) has been regarded a good ameliorant improving microbial communities restoring of agricultural systems. However, knowledge was inadequate regarding effects adding on alpine grassland. Four levels addition (0, 150, 200, 250 mL m –2 ) were conducted to investigate properties microorganisms The increased aboveground biomass, organic carbon, total nitrogen, available phosphorus, but decreased electric conductivity. Meanwhile, relative biomasses gram-negative bacteria decreased, while ectomycorrhizal fungi arbuscular mycorrhizal after addition. relationship between environmental changed. restore effect with increase time. These results indicated that could be practice health grassland ecosystem.

Language: Английский

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Severe degradation and artificial restoration diversely drive runoff and sediment processes in alpine meadows

Geoderma, Journal Year: 2024, Volume and Issue: 443, P. 116828 - 116828

Published: Feb. 21, 2024

Artificial grassland is considered an effective measure for restoring severely degraded in alpine areas and has been widely applied on the Qinghai-Tibetan Plateau. However, specific effects of artificial restoration degradation slope runoff sediment yield are still poorly understood. In this study, we investigated process three areas: meadow (AM), a (BL), that was restored by (AG). Our findings revealed AG significantly lower than both AM BL, with reductions 95.59% 88.40%, respectively. The reduced, 21.77% 90.54% compared to Nevertheless, concentration 27.22 3.26 times higher study provides clear evidence plant soil properties play crucial role driving erosion processes BL. Specifically, inhibiting yield. This inhibition attributed modification conditions interception rainfall, which were facilitated recovery vegetation coverage increased input organic matter. These have significant implications meadows prevention efforts

Language: Английский

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Soil changes during grassland degradation

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 179 - 198

Published: Dec. 4, 2024

Language: Английский

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