Urbanisation affects the health and stability of ecosystem significantly. Constructing a scientific ecological security pattern (ESP) is paramount importance for safeguarding ecosystems within region, optimising spaces, ensuring sustainability. To investigate effect urbanisation on ESP, we utilised Vigour–Organisation–Resilience-Services (VORS) model to analyse changes in (EH) identify degraded areas city Chengdu. In this case study. We used Patch-generating Land Use Simulation (PLUS) Model...

Under climate change and human activities, ecosystem service (ES) research lacks systematic approaches scientific depth. This study develops a comprehensive framework integrating advanced models to predict ESs, analyze interactions, identify key drivers, assess spatial effects on the Zoigê Plateau. The results indicate following: (1) From 2000 2020 across three 2040 scenarios, water conservation (WC) improves, while carbon storage (CS) habitat quality (HQ) decline, leading overall ES...

Developing an effective vegetation classification method for mountain–plain transition zones is critical understanding ecological patterns, evaluating ecosystem services, and guiding conservation efforts. Existing methods perform well in mountainous plain areas but lack verification zones. This study utilized terrain data Sentinel-1 Sentinel-2 imagery to extract topographic, spectral, texture, SAR features as the index. By combining feature sets applying elimination algorithms, performance...

There are many types of asphalt anti-UV aging agents, and the differences in their UV resistance mechanisms result varying degrees resistance. This study utilized three agents to modify asphalt. These include a reflector (TiO2), hindered amine light stabilizer (HALS, LS770), absorber (UV326). The contents were 0.5%, 1%, 1.5%. When dosages TiO2, LS770, UV326 1.5%, rutting factors modified at 64 °C increased by 61.18%, 43.54%, 34.18%, respectively. As dosage LS770 TiO2 increased, factor was...

This study employs multi-source remote sensing information and machine learning methods to comprehensively assess the geological background, structural features, alteration anomalies, spectral characteristics of Malkansu Manganese Ore Belt in Xinjiang. mineralization is predicted, areas with high potential are delineated. The results feature factor weight analysis indicate that density lithological contribute most significantly manganese mineralization. Notably, linear structures aligned...

Net ecosystem productivity (NEP) is a crucial metric for quantifying carbon storage, exchange, and cycling across global atmospheric terrestrial ecosystems. This study examines the spatiotemporal patterns of NEP in China’s Zoigê alpine grassland its response to climate variability, phenological changes, soil conditions from 2000 2020. The results show statistically significant increase annual Plateau, with an average rate 3.18 g C/m2/year. Spatially, displays strong heterogeneity, higher...

The Wenchuan earthquake, an unexpected magnitude 8.0 mega-earthquake that struck on 12 May 2008, significantly changed land cover (LC), particularly affecting vegetation and rock cover. However, the long-term effects of LC changes ecosystem services (ESs) remain unclear in earthquake-affected regions, especially across different spatial scales. This study, focusing County, employs a multi-model framework integrates fractional coverage (FVC), exposure rate (FR), (ESs), combining correlation...

The purpose of this study was to construct a geological hazard susceptibility evaluation and analysis model using three types machine learning models, namely, random forest (RF), support vector (SVM), naive Bayes (NB), evaluate the landslides, Puge section Zemu River valley in Liangshan Yi Autonomous Prefecture as area. First, 89 shallow landslide debris flow locations were recognized through field surveys remote sensing interpretation. A total eight hazard-causing factors, slope, aspect,...

Climate change and human activities are seriously affecting the ecological level economic development of county-level cities. Mianzhu City is a typical city located within Chengdu-Chongqing Economic Circle Yangtze River Belt. The study selected primary sources by analyzing high-level ecosystem service functions over time, using Morphological Spatial Pattern Analysis (MSPA). Ecological resistance surfaces were constructed natural factors to address risks associated with future urbanization....

Short-term high-resolution quantitative precipitation forecasting (QPF) is very important for flash-flood warning, navigation safety, and other hydrological applications. This paper proposes a subpixel-based QPF algorithm using pyramid Lucas–Kanade optical flow technique (SPLK) short-time rainfall forecast. The SPLK tracks the storm on subpixel level by then extrapolates linear method through redistribution interpolation. compares with object-based pixel-based nowcasting algorithms eight...

Although clay mineral content in ion-absorbed rare earth ores is crucial for migrating and releasing elements, the formation, distribution, migration of minerals supergene have not been fully understood. Therefore, this study analyzes characteristics type content, soil particle size, pH value, leaching solution concentration, rate. This analysis was performed using different methods, such as regional mine surveys, situ profile monitoring, indoor simulated leaching. The results showed that...

Landslide susceptibility assessment can effectively predict the spatial distribution of potential landslides, which is great significance in fields such as geological disaster prevention, urban planning, etc. Taking Xining City an example, based on GF-2 remote sensing image data and combined with field survey data, this study delineated range developed landslides. Key factors controlling landslides were then extracted to establish a landslide index system. Based this, frequency ratio (FR),...

A new fire monitoring method was proposed in this paper, which a Neural Network of Deep Convolutional Long-Recurrent Networks (DCLRN), and combining DCLRN network optical flow for open space environment real time. This is achieved by utilizing the static dynamic characteristics fire, converting RGB images to real-time, use convolutional neural spatial learning, class recurrent architectures sequence eventually achieve purpose monitoring. Which end-to-end trainable suitable large-scale visual...

This study aimed to determine the effectiveness of postoperative adjuvant lenvatinib + PD-1 blockade for patients with early-stage hepatocellular carcinoma (HCC) microvascular invasion (MVI).

Sichuan Province, China, is a typical ecologically fragile area that sensitive to global climate change. Studies regarding the spatial-temporal variations and driving factors of FVC (Fractional Vegetation Coverage) in Province's vegetation ecosystem are important theoretical practical significance for revealing relationship between change ecosystems. These studies also evaluation environmental quality service function adjustment terrestrial In existing studies, there lack detailed depictions...

The vegetation in mountainous areas is abundant, and its ecological carbon sequestration ability of great significance to maintain the sustainable healthy development environment. However, when estimating mountain vegetation, Carnegie-Ames-Stanford Approach (CASA) model assigns a uniform value maximum light energy utilization (ε max = 0.389 gC/MJ), ignoring influence types topographic factors on ε , resulting low accuracy CASA vegetation. In this paper, improved was combined with Landsat 8...

Landslide disasters with dense vegetation and steep terrain, high concealment frequently occur in Southwest China. Current field surveys, unmanned aerial vehicle (UAV) photogrammetry, Interferometric Synthetic Aperture Radar (InSAR) technologies all have limitations complex environments coverage. In this study, the landslide Xinmo Village, Mao County, Aba Prefecture, Sichuan Province, was used as research object. The slope types were divided according to regional stratum occurrence...