Investigation into the transformation mechanisms of heavy metals and phosphorus and their bioavailability during sheep manure composting under functional membrane coverage on Qinghai-Tibet Plateau

Plant growth patterns serve as a power switch governing microbial N use efficiency and N2O emission in an alpine meadow under climate change on the Qinghai-Tibet Plateau

Linkage between the Tibetan Plateau and Global Extreme Heat in 2023

Efficient degradation vs. enhanced persistence: How soil nutrients drive divergent pesticide fates via microbial strategies on the Tibetan plateau.

Divergent spatial distributions, carbon stocks, and climatic threshold responses of soil inorganic and organic carbon in the Tibet Plateau

Interface hyperfine coupling engineering of graphene oxide@MgAl-LDH architectures toward eco-efficient lithium extraction from salt-lake brines.

Aboveground inputs rather than belowground root drive SOC responses to long term N addition in alpine grassland ecosystems of Qinghai-Tibetan Plateau

Simulated freeze-thaw cycles restructure plastisphere microbiomes and functional gene co-occurrence networks in alpine lake sediment microcosms.

Crustal deformation and its dynamic mechanisms beneath the different tectonic blocks of the central Tibetan Plateau from P-wave Receiver Functions

Understanding the dynamics of small lakes (<1 km2) on the Qinghai-Tibetan Plateau (QTP) is critical for preserving its fragile ecosystem. However, long-term, high-resolution mapping of these lakes remains challenging. We developed the Swin-Res-Unet deep learning model to extract and analyze small lake variations on the QTP from 1990 to 2020. Quantitative comparisons confirm that our model outperforms the baseline Swin-Unet, achieving an Intersection over Union of 92.4%. This study successfully mapped 213,142 lakes with an overall accuracy of 98.1% and an F1 score of 96.3% across the plateau. Our analysis reveals a significant expansion trend, with lake number and total area increasing by 57% and 33%, respectively, resulting in a net expansion of 13,774 km2. Small lakes dominated the observed changes, particularly in continuous permafrost regions, where rapid increases in lake density coincide with accelerated permafrost degradation. In contrast, discontinuous permafrost zones exhibit stabilization or shrinkage. These contrasting responses suggest a threshold relationship where early-stage degradation promotes lake formation, while deeper thaw and talik penetration enhance drainage to trigger shrinkage or disappearance. This study provides the first long-term, high-resolution assessment of small lake dynamics across the QTP and offers new insights into cryosphere–hydrology interactions in a rapidly warming alpine environment.

Shifting relative importance of vegetation filtering and cold trapping in PCB deposition along a 1000 km transect toward the Qinghai-Tibet Plateau.

Performance evaluation and field validation of a composite VOC inhibitor for asphalt pavement on the Qinghai-Tibet Plateau

ABSTRACT The littoral zone is crucial in the aquatic ecosystem of lakes, and water depth is often insufficient when using the traditional zigzag echo-sounding method. This study evaluated the applicability of Ice, Cloud, and Land Elevation Satellite-2 (ICESat-2) photon data for lake water depth reconstruction on the Tibetan Plateau (TP). The ICESat-2 photon effectively penetrated shallow water and showed the underwater topography clearly. The water depth at the 549 intersection points across the 33 lakes ranged from 0.4 to 19.25 m, with an average of 4.62 m, and the RMSE of water depths from the ICESat-2 data was 0.42 m comparing with 33 lakes with in situ bathymetric data. The ICESat-2 data since 2018 covered 1392 large lakes, and the total observation days for 677 lakes was >20 days. Water transparency affects the accuracy of water depth reconstruction. This research suggests that ICESat-2 data has substantial potential for reconstructing lake water depth on the TP, which is useful for lake water storage estimation and water resource management.

Reinforcement of weathered aggregates on the Qinghai–Tibet Plateau: Cross-scale coupling of microstructural evolution and macroscopic performance

To address the issues of resistance and environmental pollution caused by over-reliance on chemical pesticides in the control of Botrytis cinerea, this study aimed to isolate efficient biocontrol bacteria from unique habitats for the development of new resources for green control. Antagonistic strains were isolated from facility agriculture soil on the Qinghai-Tibet Plateau. Their taxonomic status was determined through morphological, physiological, biochemical, and comprehensive molecular identification based on 16S rDNA and gyrB gene sequences. The antifungal activity and biocontrol potential were evaluated using plate confrontation assays, in vitro fruit protection tests, and microscopic observation. Moreover, culture conditions including carbon source, nitrogen source, temperature, salinity, and pH were systematically optimized. A highly effective biocontrol strain, HZ-61, was isolated and identified as Bacillus pumilus. This strain exhibited an inhibition rate of 75% against B. cinerea in plate assays and achieved a control efficacy of 94.12% in detached fruit tests. It also induced extensive hyphal fragmentation and deformation in the pathogen. Optimization of culture conditions revealed that the optimal carbon source was yeast extract, the optimal nitrogen sources were peptone or tryptone, the optimal growth temperature was 28°C, the optimal salinity was 1% NaCl, and the optimal pH was 7.0. Strain HZ-61 demonstrated remarkable antifungal activity and biocontrol potential against B. cinerea, providing a preliminary theoretical basis and a key microbial resource for the development of efficient and environmentally friendly microbial agents.

Continuous shrub expansion enhances soil water retention and plant-available water of alpine meadows in the Qinghai-Tibetan Plateau

Highway construction accelerates topsoil organic carbon loss in permafrost on the Qinghai-Tibet plateau

Atmospheric acid deposition leads to increased soil inorganic carbon loss on the Qinghai-Tibetan Plateau

Heat source and upflow pathway in the Yangyi geothermal field, Qinghai-Xizang Plateau:insights from three-dimensional magnetotelluric imaging

The Meso-Cenozoic polyphase intracontinental superposed deformation of Daloushan Tectonic Belt, South China Continent