A5100400831- Fire effects on ecosystems
- Soil Carbon and Nitrogen Dynamics
- Rangeland and Wildlife Management
- Fire dynamics and safety research
- Remote Sensing in Agriculture
- Climate change and permafrost
- Plant Water Relations and Carbon Dynamics
- Atmospheric and Environmental Gas Dynamics
- Fire Detection and Safety Systems
- Ecology and Vegetation Dynamics Studies
- Cryospheric studies and observations
- Forest ecology and management
- Landslides and related hazards
- Advanced Image Processing Techniques
- Peatlands and Wetlands Ecology
- Image Processing Techniques and Applications
- Remote Sensing and Land Use
- Advanced Radiotherapy Techniques
- Remote Sensing and LiDAR Applications
- Atmospheric chemistry and aerosols
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Coastal wetland ecosystem dynamics
- Air Quality and Health Impacts
- Brain Metastases and Treatment
- Glioma Diagnosis and Treatment
Northeast Forestry University
2016-2025
State Forestry and Grassland Administration
2024
Henan Agricultural University
2024
Dongfeng Motor (China)
2024
DHC Software (China)
2024
China Automotive Technology and Research Center
2024
China University of Petroleum, Beijing
2024
Zhejiang Cancer Hospital
2023
Anhui Jianzhu University
2023
Beijing Institute of Technology
2022
Climate change and human activity are increasing the frequency of wildfires in peatlands threatening permafrost peatland carbon pools. In Northeast China, low-severity prescribed fires conducted annually on to reduce risk wildfires. These typically do not burn surface peat but lead loss vegetation introduction pyrogenic carbon. However, long-term effects repeated soil stability these ecosystems remain unclear. Thus, we fire experiments over 3 years Great Khingan Mountains. Our findings...
Abstract Preventing and suppressing forest fires is one of the main tasks forestry agencies to reduce resource loss requires a thorough understanding importance factors affecting their occurrence. This study was carried out in plantations on Maoer Mountain order develop models for predicting moisture content dead fine fuel using meteorological soil variables. Models by Nelson (Can J For Res 14:597–600, 1984) Van Wagner Pickett Service 33, 1985) describing equilibrium as function relative...
With the development of computer technology, forest fire spread simulation using computers has gradually developed. According to existing research on spread, models established in various countries have typical regional characteristics. A model a specific region is only suitable for local area, and there still great deal uncertainty as whether or not same fuel other regions. Although many been established, characteristics applicable each model, such loading, moisture content, combustibility,...
AimsThe pattern and driving factors of forest fires are interest for fire occurrence prediction management. The aims the study were: (i) to describe history human-caused by season size burned area over time; (ii) identify spatial patterns test existence 'hotspots' determine their exact locations in Daxing'an Mountains; (iii) that distribution possibility occurrence.
The simulation of forest fire spread is a key problem for the management fire, and Cellular Automata (CA) has been used to simulate complex mechanism long time. CA driven by rate (ROS), which hard estimate, because some input parameters current ROS model cannot be provided with high precision, so approach not well applied yet in system date. LSTM-CA using LSTM proposed this paper. Based on interaction between wind S-LSTM proposed, takes full advantage time dependency ROS. estimated...
Carbon storage is an important component of ecosystem services. Under climate warming and human activities, land use/land cover (LULC) have been undergoing tremendous change, leading to spatio-temporal variations in carbon storage. Based on seven series LULC data combined with module Integrated Valuation Ecosystem Services Tradeoffs (InVEST) model, spatial-temporal changes types were analyzed estimated for Heilongjiang Province, Northeast China. Results show varied among different LULC....
Abstract Northeast China has experienced rapid and substantial climate warming over the past 60 years, permafrost is degrading rapidly. In this study, distribution extent in were estimated from monitored ground surface temperatures using temperature at top of (TTOP) model geographically weighted regression method. Using TTOP model, computed mean annual (MAGT @TOP ) increased significantly 1961–1990 (1.8°C) to 1991–2020 (3.0°C). The areal extents defined by a subzero MAGT ≤ 0°C) period 461.5...
Despite the high frequency of wildfire disturbances in boreal forests China, effects wildfires on soil respiration are not yet well understood. We examined fire severity rate (Rs) and its component change a Dahurian Larch (Larix gmelinii) Northeast China. The results showed that Rs decreased with burning severity. Compared control plots, low plots by 19%, while it 28% plots. decrease was mainly due to autotrophic (Ra). temperature sensitivity (Q 10) increased after disturbances, but...
Abstract Fuel moisture content is one of the important factors that determine ignition probability and fire behaviour in forest ecosystems. In this study, spread thresholds 40 dead fuel were performed laboratory experiments, with a focus on source wind speed. Variability at time during was observed for different fuels. Matches more efficient to result high values compared use cigarette butts. Some fuels did not ignite 15% content, whereas others ignited 40% 38% case matches, or 27% 25% using...
Modeling forest fire spread is a very complex problem, and the existing models usually need some input parameters which are hard to get. How predict time series of rate based on passed may be key problem break through current technical bottleneck. In process spreading, wind speed would affect each other. this paper, three kinds network Long Short-Term Memory (LSTM) designed rate, exploring interaction between wind. order train these LSTM-based validate their effectiveness prediction, several...
Prevalence of carbapenem-resistant Klebsiella pneumoniae (CRKP) has compromised antimicrobial efficacy against severe infections worldwide. To monitor global spread, we conducted a comprehensive genomic epidemiologic study comparing sequences from 21 blaOXA-232-carrying CRKP isolates China with K. sequence type (ST) 15 strains 68 countries available in GenBank. Phylogenetic and phylogeographic analyses revealed all belonged to ST15 lineage exhibited multidrug resistance. Analysis grouped 330...
The mechanism through which fine root biomass affects soil carbon accumulation after prescribed burning remains unclear. In this study, the of roots in different life forms (larch, shrub, and grass) total (STC) were determined burning. Relative to a control, increased one week fire (11.70 mg·g−1; 28.1%) decreased 8 months (7.33 16.7%), returning control levels 10 post-fire. There was reduction larch (FRB) (0.20–0.48 t·ha−1; 35.3%–46.1%; these ranges represent significant variation interval...