Chunyang He
Biographic Data
| ID | 6272703 |
|---|---|
| NAME | Chunyang He |
| GIVEN NAMES | Chunyang |
| FAMILY NAME | He |
| SIGNATURE | HE C |
| AFFILIATIONS | Beijing Normal University |
| ORCID | 0000-0002-8440-5536 |
| VERIFIED | Yes |
| TOTAL WORKS | 27 |
| TOTAL CITATIONS | 52 |
| AUTHOR COUNT | 27 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2012 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 4 |
Revealing the importance of urban water source areas in China by integrating supply and beneficiaries
Disparities of long term urban expansion over 7000 cities globally
A bibliographic review of the relationship between ecosystem services and human well-being
Indirect impacts of future urban expansion on ecosystem services in the transnational area of China, North Korea, and Russia
Assessing the indirect impacts of urban expansion on ecosystem services is important for understanding the cascading effect of urbanization on the environment. However, few studies have assessed the indirect impacts of urban expansion on ecosystem services. In this study, the indirect impacts of urban expansion on ecosystem services refer to the impacts of cropland displacement on ecosystem services, which is triggered by urban expansion. Taking …
A brief review of the coupled human-Earth system modeling
Human activities have profound impacts on climate and ecosystems via fossil fuel use and land-use changes, and environmental changes in turn affect human society. Due to strong bidirectional links between the human society and the environment, there is a need to understand the complex dynamics of coupled human-Earth systems (CHES) for mitigation and adaptation purposes. In this paper, four main feedback links between human and Earth systems are i…
Impacts of urban expansion on natural habitats in global drylands
Future global urban water scarcity and potential solutions
Urbanization and climate change are together exacerbating water scarcity—where water demand exceeds availability—for the world’s cities. We quantify global urban water scarcity in 2016 and 2050 under four socioeconomic and climate change scenarios, and explored potential solutions. Here we show the global urban population facing water scarcity is projected to increase from 933 million (one third of global urban population) in 2016 to 1.693–2.373 …
Assessing the dynamics of sustainability for social-ecological systems based on the adaptive cycle framework
Assessing human-environment system sustainability based on Regional Safe and Just Operating Space
Quantifying spatiotemporal patterns of shrinking cities in urbanizing China
The occupation of cropland by global urban expansion from 1992 to 2016 and its implications
Large-scale urban expansion worldwide has exerted great impacts on cropland and its net primary productivity (NPP), which can affect whether food security and sustainable development goals will be met at global and local scales. Although important, the impacts at the global scale over the last 25 years remain unclear. Based on the latest long-term dynamic urban expansion data, this study analyzed global urban expansion and its impacts on cropland…
Will climate change make Chinese people more comfortable? A scenario analysis based on the weather preference index
Assessing the climate change impact (CCI) on weather conditions is important for addressing climate change and promoting sustainable development. This study used a weather preference index (WPI) as an indicator to evaluate the CCI on weather conditions in China under different scenarios from 2025 to 2100. First, we analyzed the change in the WPI in China from 1971 to 2013. Then, we estimated the trends in the WPI in China from 2025 to 2100 under …
Mapping global urban boundaries from the global artificial impervious area (Gaia) data
Urban boundaries, an essential property of cities, are widely used in many urban studies. However, extracting urban boundaries from satellite images is still a great challenge, especially at a global scale and a fine resolution. In this study, we developed an automatic delineation framework to generate a multi-temporal dataset of global urban boundaries (GUB) using 30 m global artificial impervious area (GAIA) data. First, we delineated an initia…
Does the urban sprawl matter in Yangtze River Economic Belt, China? An integrated analysis with urban sprawl index and one scenario analysis model
China’s response to a national land-system sustainability emergency
How did the urban land in floodplains distribute and expand in China from 1992–2015
Urban land in floodplains (ULF) is a vital component of flood exposure and its variations can cause changes in flood risk. In the context of rapid urbanization, ULF is expanding rapidly in China and imperiling societal sustainability. However, a national-scale analysis of ULF patterns and dynamics has yet to be conducted. Therefore, this study aims to investigate the spatiotemporal changes in China’s ULF at different spatial scales (the country, …
Detecting global urban expansion over the last three decades using a fully convolutional network
The effective detection of global urban expansion is the basis of understanding urban sustainability. We propose a fully convolutional network (FCN) and employ it to detect global urban expansion from 1992–2016. We found that the global urban land area increased from 274.7 thousand km ^2 –621.1 thousand km ^2 , which is an increase of 346.4 thousand km ^2 and a growth by 1.3 times. The results display a relatively high accuracy with an average ka…
Rapid Population Growth in Chinese Floodplains from 1990 to 2015
Although China suffers from frequent and disastrous floods, the spatiotemporal pattern of its population living in the floodplain (PopF) is still unknown. This strongly limits our understanding of flood risk and the effectiveness of mitigation efforts. Here we present the first quantification of Chinese PopF and its dynamics, based on newly-available population datasets for years 1990, 2000, 2010, and 2015 and on a flood map. We found that the Po…
Rapid Population Growth throughout Asia’s Earthquake-Prone Areas
Assessing the changes of the population living throughout the most seismically hazardous area (MSHA) constitutes an important foundation for seismic risk assessment. However, the changes of the population living in the MSHA of Asia, which exhibits the highest number of earthquake related fatalities, were poorly understood. Therefore, this study analyzed the changes of the population in the MSHA between 2000 and 2015 at the continental, subcontine…
Farmers’ Risk Preferences in Rural China
This study measures farmers' risk attitudes in rural China using a survey instrument and a complementary experiment conducted in the field with the same sample of subjects. Using a question asking people about their willingness to take risks "in general", we found that the average response of our sample is slightly risk averse. Farmers' exogenous factors (age, gender, and height) and self-reported happiness have a significant impact on farmers' w…
How does sprawl differ across cities in China? A multi-scale investigation using nighttime light and census data
The population in China’s earthquake-prone areas has increased by over 32 million along with rapid urbanization
Accurate assessments of the population exposed to seismic hazard are crucial in seismic risk mapping. Recent rapid urbanization in China has resulted in substantial changes in the size and structure of the population exposed to seismic hazard. Using the latest population census data and seismic maps, this work investigated spatiotemporal changes in the exposure of the population in the most seismically hazardous areas (MSHAs) in China from 1990 t…
Behind the rapid expansion of urban impervious surfaces in China
A global map of urban extent from nightlights
Urbanization, a major driver of global change, profoundly impacts our physical and social world, for example, altering not just water and carbon cycling, biodiversity, and climate, but also demography, public health, and economy. Understanding these consequences for better scientific insights and effective decision-making unarguably requires accurate information on urban extent and its spatial distributions. We developed a method to map the urban…
Urban expansion dynamics and natural habitat loss in China
China's extensive urbanization has resulted in a massive loss of natural habitat, which is threatening the nation's biodiversity and socioeconomic sustainability. A timely and accurate understanding of natural habitat loss caused by urban expansion will allow more informed and effective measures to be taken for the conservation of biodiversity. However, the impact of urban expansion on natural habitats is not well‐understood, primarily due to the…
Impacts of urban expansion on natural habitats in global drylands
Quantifying spatiotemporal patterns of shrinking cities in urbanizing China
Does the urban sprawl matter in Yangtze River Economic Belt, China? An integrated analysis with urban sprawl index and one scenario analysis model
Behind the rapid expansion of urban impervious surfaces in China
Assessing human-environment system sustainability based on Regional Safe and Just Operating Space
Disparities of long term urban expansion over 7000 cities globally
Extracting the dynamics of urban expansion in China using DMSP-OLS nighttime light data from 1992 to 2008
Urban expansion dynamics and natural habitat loss in China
China's extensive urbanization has resulted in a massive loss of natural habitat, which is threatening the nation's biodiversity and socioeconomic sustainability. A timely and accurate understanding of natural habitat loss caused by urban expansion will allow more informed and effective measures to be taken for the conservation of biodiversity. However, the impact of urban expansion on natural habitats is not well‐understood, primarily due to the…
How much of the world’s land has been urbanized, really? A hierarchical framework for avoiding confusion
A global map of urban extent from nightlights
Urbanization, a major driver of global change, profoundly impacts our physical and social world, for example, altering not just water and carbon cycling, biodiversity, and climate, but also demography, public health, and economy. Understanding these consequences for better scientific insights and effective decision-making unarguably requires accurate information on urban extent and its spatial distributions. We developed a method to map the urban…
How does sprawl differ across cities in China? A multi-scale investigation using nighttime light and census data
The population in China’s earthquake-prone areas has increased by over 32 million along with rapid urbanization
Accurate assessments of the population exposed to seismic hazard are crucial in seismic risk mapping. Recent rapid urbanization in China has resulted in substantial changes in the size and structure of the population exposed to seismic hazard. Using the latest population census data and seismic maps, this work investigated spatiotemporal changes in the exposure of the population in the most seismically hazardous areas (MSHAs) in China from 1990 t…
Behind the rapid expansion of urban impervious surfaces in China
Farmers’ Risk Preferences in Rural China
This study measures farmers' risk attitudes in rural China using a survey instrument and a complementary experiment conducted in the field with the same sample of subjects. Using a question asking people about their willingness to take risks "in general", we found that the average response of our sample is slightly risk averse. Farmers' exogenous factors (age, gender, and height) and self-reported happiness have a significant impact on farmers' w…
China’s response to a national land-system sustainability emergency
How did the urban land in floodplains distribute and expand in China from 1992–2015
Urban land in floodplains (ULF) is a vital component of flood exposure and its variations can cause changes in flood risk. In the context of rapid urbanization, ULF is expanding rapidly in China and imperiling societal sustainability. However, a national-scale analysis of ULF patterns and dynamics has yet to be conducted. Therefore, this study aims to investigate the spatiotemporal changes in China’s ULF at different spatial scales (the country, …
Detecting global urban expansion over the last three decades using a fully convolutional network
The effective detection of global urban expansion is the basis of understanding urban sustainability. We propose a fully convolutional network (FCN) and employ it to detect global urban expansion from 1992–2016. We found that the global urban land area increased from 274.7 thousand km ^2 –621.1 thousand km ^2 , which is an increase of 346.4 thousand km ^2 and a growth by 1.3 times. The results display a relatively high accuracy with an average ka…
Rapid Population Growth in Chinese Floodplains from 1990 to 2015
Although China suffers from frequent and disastrous floods, the spatiotemporal pattern of its population living in the floodplain (PopF) is still unknown. This strongly limits our understanding of flood risk and the effectiveness of mitigation efforts. Here we present the first quantification of Chinese PopF and its dynamics, based on newly-available population datasets for years 1990, 2000, 2010, and 2015 and on a flood map. We found that the Po…
Rapid Population Growth throughout Asia’s Earthquake-Prone Areas
Assessing the changes of the population living throughout the most seismically hazardous area (MSHA) constitutes an important foundation for seismic risk assessment. However, the changes of the population living in the MSHA of Asia, which exhibits the highest number of earthquake related fatalities, were poorly understood. Therefore, this study analyzed the changes of the population in the MSHA between 2000 and 2015 at the continental, subcontine…
The occupation of cropland by global urban expansion from 1992 to 2016 and its implications
Large-scale urban expansion worldwide has exerted great impacts on cropland and its net primary productivity (NPP), which can affect whether food security and sustainable development goals will be met at global and local scales. Although important, the impacts at the global scale over the last 25 years remain unclear. Based on the latest long-term dynamic urban expansion data, this study analyzed global urban expansion and its impacts on cropland…
Will climate change make Chinese people more comfortable? A scenario analysis based on the weather preference index
Assessing the climate change impact (CCI) on weather conditions is important for addressing climate change and promoting sustainable development. This study used a weather preference index (WPI) as an indicator to evaluate the CCI on weather conditions in China under different scenarios from 2025 to 2100. First, we analyzed the change in the WPI in China from 1971 to 2013. Then, we estimated the trends in the WPI in China from 2025 to 2100 under …
Mapping global urban boundaries from the global artificial impervious area (Gaia) data
Urban boundaries, an essential property of cities, are widely used in many urban studies. However, extracting urban boundaries from satellite images is still a great challenge, especially at a global scale and a fine resolution. In this study, we developed an automatic delineation framework to generate a multi-temporal dataset of global urban boundaries (GUB) using 30 m global artificial impervious area (GAIA) data. First, we delineated an initia…
Does the urban sprawl matter in Yangtze River Economic Belt, China? An integrated analysis with urban sprawl index and one scenario analysis model
Future global urban water scarcity and potential solutions
Urbanization and climate change are together exacerbating water scarcity—where water demand exceeds availability—for the world’s cities. We quantify global urban water scarcity in 2016 and 2050 under four socioeconomic and climate change scenarios, and explored potential solutions. Here we show the global urban population facing water scarcity is projected to increase from 933 million (one third of global urban population) in 2016 to 1.693–2.373 …
Assessing the dynamics of sustainability for social-ecological systems based on the adaptive cycle framework
Assessing human-environment system sustainability based on Regional Safe and Just Operating Space
Quantifying spatiotemporal patterns of shrinking cities in urbanizing China
Impacts of urban expansion on natural habitats in global drylands
Indirect impacts of future urban expansion on ecosystem services in the transnational area of China, North Korea, and Russia
Assessing the indirect impacts of urban expansion on ecosystem services is important for understanding the cascading effect of urbanization on the environment. However, few studies have assessed the indirect impacts of urban expansion on ecosystem services. In this study, the indirect impacts of urban expansion on ecosystem services refer to the impacts of cropland displacement on ecosystem services, which is triggered by urban expansion. Taking …
A brief review of the coupled human-Earth system modeling
Human activities have profound impacts on climate and ecosystems via fossil fuel use and land-use changes, and environmental changes in turn affect human society. Due to strong bidirectional links between the human society and the environment, there is a need to understand the complex dynamics of coupled human-Earth systems (CHES) for mitigation and adaptation purposes. In this paper, four main feedback links between human and Earth systems are i…
A bibliographic review of the relationship between ecosystem services and human well-being
Geography (24 works) · Environmental Science (19 works) · Land Use and Ecosystem Services (17 works) · China (15 works) · Ecology (13 works) · Impact of Light on Environment and Health (10 works) · Urbanization (10 works) · Environmental resource management (9 works) · Economics (8 works) · Population (8 works)