Results 51 to 60 of about 264,577 (207)

Construction and Application of a Novel C‐Vine Copula‐Based Multi‐Variate Ecological Drought Index

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT A comprehensive ecological drought index capturing vegetation growth conditions and meteorological–hydrological variability is essential for assessing ecological drought and optimizing water resource management. This study selected soil moisture (SM), actual evapotranspiration (ET), land surface temperature (LST) and leaf area index (LAI) to ...
Haofei Zhang, Xingye Han, Zhijun Wu
wiley   +1 more source

Metabolomics Characterization of Phenolic Compounds in Colored Quinoa and Their Relationship with In Vitro Antioxidant and Hypoglycemic Activities

open access: yesMolecules
Chenopodium quinoa Willd. is rich in phenolic compounds and exhibits diverse biological activities. Few studies have focused on the effect of colored quinoa’s phenolic profile on potential biological activity.
Ling Zhang   +6 more
doaj   +1 more source

Distributed hydrological model of the Qinghai Tibet Plateau based on the hydrothermal coupling: Ⅰ: hydrothermal coupling simulation of "snow-soil-sand gravel layer" continuum

open access: yesShui kexue jinzhan, 2021
The Qinghai-Tibet Plateau, known as the "Asian Water Tower", is a typical alpine mountain area. Snow-covered permafrost and seasonally frozen soil widely exist on this plateau, profoundly affecting the water cycle process of the entire region.
Zuhao ZHOU   +8 more
doaj   +1 more source

Post‐Fire Soil Organic Carbon Dynamics: Decline and Recovery Over Two Decades

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Wildfire can significantly alter soil organic carbon (SOC) dynamics in forest ecosystems, with complex temporal patterns following fire events. However, research on post‐fire SOC recovery remains limited, particularly in dry‐warm valley regions that are prone to frequent forest fires.
Yuxin Cen   +7 more
wiley   +1 more source

Data of “Iron Variability Reveals the Interface Effects of Aerosol-Pollutant Interactions on the Glacier Surface of Qinghai-Tibet Plateau”

open access: yes, 2022
   Data of “Iron Variability Reveals the Interface Effects of Aerosol-Pollutant Interactions on the Glacier Surface of Qinghai-Tibet Plateau”
Zhiwen Dong (10100353)
core   +1 more source

Spatiotemporal Evolution Characteristics of NDVI of Different Vegetation Types and Its Response to Climate Factors on the Qinghai-Tibet Plateau from 1999 to 2019

open access: yesShuitu baochi yanjiu, 2023
To study the temporal and spatial variation characteristics of NDVI of different vegetation types in the Qinghai-Tibet Plateau, explore the response mechanism of NDVI of different vegetation types to climatic factors, and provide a certain basis for the ...
MIAO Li   +3 more
doaj  

Species‐Specific Shrub Encroachment Drives Divergent Soil Fungal Assembly Processes and Network Structures in Alpine Meadows

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Shrub encroachment is rapidly transforming alpine meadow ecosystems worldwide, yet its consequences for belowground microbial organization remain insufficiently understood, particularly when different shrub species exert contrasting ecological effects.
Yang Liu   +7 more
wiley   +1 more source

Chronic high‐altitude exposure and intracerebral hemorrhage: A novel perspective from the vascular‐immune‐neuronal network

open access: yesNeuroprotection, EarlyView.
Long‐term chronic high‐altitude hypobaric hypoxia increases susceptibility to ICH, particularly among migrant populations lacking EPAS1/SENP1 adaptive genetic variants relative to high‐altitude indigenous residents. Persistent hypoxia initiates blood–brain barrier (BBB) breakdown, aberrant glial and immune activation, and progressive neuronal injury ...
Rongsu Huang   +6 more
wiley   +1 more source

Is the ‘water tower’ reassuring? Viewing water security of Qinghai-Tibet Plateau from the perspective of ecosystem services ‘supply-flow-demand’

open access: yesEnvironmental Research Letters, 2022
Ecosystem service flow plays a vital role in the formation, transportation, transformation, and maintenance of ecosystem services. For ecosystem services with spatiotemporal mismatch of supply and demand, ecosystem service flow explains the integrated ...
Jingya Liu   +5 more
doaj   +1 more source

Detecting Plateau Zokor (Eospalax baileyi) Mounds in UAV Imagery of Alpine Meadows Using Deep Learning Algorithms

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
We developed PZM‐YOLO to automatically detect plateau zokor mounds in UAV imagery of alpine meadows. The model achieved reliable detection of small and densely distributed mounds under complex backgrounds, outperforming the baseline YOLOv5s. This framework supports mound counting, mound position, rodent impact assessment, and grassland restoration ...
Yang Yang   +5 more
wiley   +1 more source

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