A5017185832- Land Use and Ecosystem Services
- Urban Green Space and Health
- Urban Heat Island Mitigation
- Remote Sensing in Agriculture
- Air Quality and Health Impacts
- Remote Sensing and Land Use
- Urban Transport and Accessibility
- Atmospheric chemistry and aerosols
- Impact of Light on Environment and Health
- Climate Change and Health Impacts
- Remote-Sensing Image Classification
- Wildlife-Road Interactions and Conservation
- Remote Sensing and LiDAR Applications
- Air Quality Monitoring and Forecasting
- Noise Effects and Management
- Advanced Polymer Synthesis and Characterization
- Urban Agriculture and Sustainability
- Conducting polymers and applications
- Marine and coastal ecosystems
- Ecology and Vegetation Dynamics Studies
- Water Quality Monitoring and Analysis
- Energy, Environment, Economic Growth
- Plant responses to elevated CO2
- Water Quality and Pollution Assessment
- Climate change impacts on agriculture
Research Center for Eco-Environmental Sciences
2016-2025
Chinese Academy of Sciences
2016-2025
University of Chinese Academy of Sciences
2016-2025
Beijing Urban Systems Engineering Research Center
2021-2025
Beijing University of Technology
2023-2024
State Key Laboratory of Urban and Regional Ecology
2022-2024
Institute of Electronics
2024
Jiangxi Agricultural University
2023
SGIDI Engineering Consulting (China)
2023
Hubei Normal University
2023
This study examines the distributional equity of urban tree canopy (UTC) cover for Baltimore, MD, Los Angeles, CA, New York, NY, Philadelphia, PA, Raleigh, NC, Sacramento, and Washington, D.C. using high spatial resolution land data census data. Data are analyzed at Census Block Group levels Spearman's correlation, ordinary least squares regression (OLS), a autoregressive model (SAR). Across all cities there is strong positive correlation between UTC median household income. Negative...
This study evaluates and compares the performance of four machine learning classifiers—support vector (SVM), normal Bayes (NB), classification regression tree (CART) K nearest neighbor (KNN)—to classify very high resolution images, using an object-based procedure. In particular, we investigated how tuning parameters affect accuracy with different training sample sizes. We found that: (1) SVM NB were superior to CART KNN, both could achieve (>90%); (2) setting greatly affected accuracy,...
Abstract This paper presents an object‐oriented approach for analysing and characterizing the urban landscape structure at parcel level using high‐resolution digital aerial imagery LIght Detection Ranging (LIDAR) data. Additional spatial datasets including property boundaries building footprints were used to both facilitate object segmentation obtain greater classification accuracy. The study area is Gwynns Falls watershed, which includes portions of Baltimore City County, MD. A three‐level...
Abstract The contrast between ecology in cities and of has emphasized the increasing scope urban ecosystem research. Ecology focuses on terrestrial aquatic patches within cities, suburbs, exurbs as analogs non‐urban habitats. Urban fabric outside analog is considered to be inhospitable matrix. city differs from by treating entire mosaics social–ecological systems. ecosystems incorporates biological, social, built components. Originally posed a metaphor visualize disciplinary evolution, this...
The air quality issues caused by extreme haze episodes in China have become increasingly serious recent years. In particular, fine particulate matter (PM2.5) has the major component of with many adverse impacts and therefore great concern to scientists, government, general public China. This study investigates spatiotemporal variation PM2.5 269 Chinese cities from 2015 2016 its associations socioeconomic factors identify possible strategies for pollution mitigation. Specifically, we first...
Environmental degradation caused by rapid urbanization is a pressing global issue. However, little known about how urban changes operate and affect environments across multiple scales. Focusing on China, we found was indeed massive from 2000 to 2015, but it also very uneven, exhibiting high internal city dynamics. Urban areas in China as whole became less green, warmer, had exacerbated PM2.5 pollution. environmental impacts differed newly developed versus older of cities. Adverse were...
Climate warming disproportionately impacts countries in the Global South by increasing extreme heat exposure. However, geographic disparities adaptation capacity are unclear. Here, we assess global inequality green spaces, which urban residents critically rely on to mitigate outdoor stress. We use remote sensing data quantify daytime cooling greenery warm seasons across ~500 largest cities globally. show a striking contrast, with having ~70% of North (2.5 ± 1.0 °C vs. 3.6 1.7 °C). A similar...
Ecosystem services (ESs) have been changed significantly due to human and natural interference, especially in urban megaregions. Numerous studies revealed the impact of urbanization on regional ecosystem service(ES). However, research whether expansion has sacrificed areas providing high ESs, which played a crucial role sustainable development, was poorly understood. This study analyzed spatial variation ES supply from 2000 2020 under influence Guangdong-Hong Kong-Macao Greater Bay Area...
Accurate and timely information about land cover pattern change in urbanareas is crucial for urban management decision-making, ecosystem monitoring andurban planning. This paper presents the methods results of an object-basedclassification post-classification detection multitemporal high-spatialresolution Emerge aerial imagery Gwynns Falls watershed from 1999 to 2004. TheGwynns includes portions Baltimore City County,Maryland, USA. An object-based approach was first applied implement...
Urbanization continues to be a transformative process globally, affecting ecosystem integrity and the health well being of people around world. Although cities tend centers for both production consumption goods services that degrade natural environments, there is also evidence urban ecosystems can play positive role in sustainability efforts. Despite fact most urbanization now occurring developing countries Global South, much what we know about has been developed from studying United States...