Understanding the factors that affect residents’ waste separation behaviors helps in constructing effective environmental campaigns for a community. Using theory of planned behavior (TPB), this study examines associated with by analyzing responses to questionnaires distributed Guangzhou, China. Data drawn from 208 1000-field were used assess socio-demographic and TPB constructs (i.e., attitudes, subjective norms, perceived behavioral control, intentions, situational factors). The...

China—the largest developing country in the world—is experiencing both rapid economic maturation and large-scale urbanization. These situations have led to waste disposal problems, need identify alternative energy sources. Waste-to-energy (WTE) conversion processes, a source of renewable energy, are expected play an increasingly important role China's sustainable management municipal solid (MSW). The purpose this research is investigate key problems opportunities associated with WTE, provide...

Abstract Mantle‐derived volatile degassing lacks quantitative evaluation in continental regions without active magmatism, such as the Tibetan Plateau. Ten new gas abundance and helium isotope data points combined with 286 hydrothermal literature India–Asia collision settings demonstrate widespread mantle‐derived volatiles across thick (∼70 km) crust. The 3 He is best explained by direct mantle input from subcontinental lithospheric (1%–36.5%) or asthenospheric wedge (1%–27.8%) instead of...

Abstract. Granite weathered crust exhibits a dual structure, which affects the pattern of damage on slopes. This study designed three kinds slope models with residual layer thicknesses against background landslide cluster in Mibei Village, Longchuan County, Guangdong Province. The hydrological response and deformation characteristics granite slopes under heavy rainfall conditions were analyzed disaster-causing mechanism landslides was studied through physical model tests. results show that...

Dual isotopes of sulfate (δ34SSO4 and δ18OSO4), along with in water trace elements geothermal waters, are systematically investigated to quantitatively elucidate sources oxygen sulfur isotopic behaviors during deep groundwater circulation constrain reservoir temperatures the Jimo nonvolcanic system on eastern coast China. The results show that δ34SSO4 δ18OSO4 values waters ranged from −21.0 5.7‰ 1.1 8.8‰, respectively. An increase SO4 concentrations (140–796 mg/L) a systematic decrease was...

Coastal ecosystems provide important ecosystem services (ESs) and have been subject to conservation restoration efforts in China for decades. However, responses coastal exploitation activity their spatial determinants not sufficiently evaluated, which limits the efficacy of efforts. To fill these gaps, this study assessed dominant change trends ESs southeastern since 1980s using an integrated biophysical model. Moreover, we explored ESs, heterogeneity, spillover effects via econometrics...

The aim of this study was to develop a regional landslide stability analysis method considering the combined impact rainfall and roots vegetation in densely vegetated areas. A typical mountainous watershed Nanling National Nature Reserve South China chosen as area. First, unmanned aerial vehicle (UAV) used obtain surface element information including topography, vegetation, landslides. Five main plant species were identified. RipRoot model then calculate additional cohesion these five...

Reconstructing Holocene vegetation history and human impact on is critical for understanding past interactions between humans nature. This study concentrates the lower West River area in Southern China, offering high-resolution reconstructions of changes over last 9000 years. Our findings reveal that during Climatic Optimum (9–5 ka BP), was predominantly covered by dense evergreen broad-leaved forests. Around 5.1 BP, emergence marsh forests, as evidenced abundant pollen Glyptostrobus situ...

Because of the physical character soil from granite weathering and typhoon rains in South China, model for early warnings existing shallow landslides cannot be well applied that area. This study developed a new landslide based on effect macropores determining rainfall threshold to post an warning possibility China. We studied hydrological effects macropore flow proposed mechanistic formation by introducing coefficient residual soil. The each slope unit was calculated combining with model....

Landslides triggered by extreme precipitation events pose a significant threat to human life and property in mountainous regions. Therefore, accurate identification of landslide locations is crucial for effective prevention mitigation strategies. During the prolonged heavy rainfall Guangdong Province between 21 May June 2022, shallow clustered landslides occurred regions Beijiang River Basin. This research used high-resolution satellite imagery integrated Mask R-CNN algorithm model with...

Landslide disaster that threatened over 100 people in Zhaoqing, China, were taken as samples.Sixteen environmental factors selected, including altitude, slope degree, aspect, lithology, soil texture, normalized differential vegetation index (NDVI), average annual rainfall, distance to developed land, and roads.The Maximum Entropy model was employed for simulation analysis of landslides.The results suggest that: NDVI, rivers, roads, rainfall variance, altitude are the leading affect landslide...

Lingding Bay in the Pearl River Estuary, located on north coast of South China Sea, experiences frequent storm surges caused by typhoons. The geomorphic features Estuary have changed tremendously due to natural processes and human activities over last century, these changes led hydrodynamic environment, such as a reduced capacity for holding tides coastal zone. In this paper, relation between is analyzed. order ascertain how historical landform change affects capacity, we study spatial...

ABSTRACT First, this article provides how tropical cyclones (TCs) have affected the Guangdong Province of China. Second, describes extent damage in Guangdong. The analysis demonstrates that those areas most vulnerable to TC-associated risks today are same where TCs make frequent landfall. Then, we suggest a definition TC risk. Employing soft histogram method, assess risk land-falling due province, only small samples available. Any assessment from data must be imprecise. advantage suggested...

Abstract Linzhi, in southeast of the Tibetan Plateau, has high mountain and gorge terrain. Recently, with rapid changes climate fast development engineering construction Tibet, fragile ecological environment Linzhi been further damaged, resulting a sharp increase debris flow disasters region. This poses serious threat to local social economic safety lives property. We divided study area into multiple watershed units, explored reliability information content model (ICM), random forest (RF),...

A substantial number of shallow landslides can still occur in areas with high vegetation cover under extreme rainfall. The cause and mechanism this type landslide remain unknown, thus a case study is selected for paper. rainfall from June 10–13, 2019, caused mass throughout Mibei Village. Most happened well-vegetated areas, some even transformed into debris flows. This paper presents detailed field investigations on 31 them, the result which were used to perform numerical simulations ring...

The mechanism of landslide hazard in weathering crust granites south china was chosen as our research object.Landslides, a common geo-hazard, can result huge economic losses and enormous casualties mountainous regions the world.Therefore, has become topic major interest for both geoscientists engineering professionals.Take landslides key problem.Firstly, we will analyze regularity its regional differentiation those area based on field investigations available data according to features this...