Longqian Chen
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View article: Integrating Cloud Computing and Landscape Metrics to Enhance Land Use/Land Cover Mapping and Dynamic Analysis in the Shandong Peninsula Urban Agglomeration
Integrating Cloud Computing and Landscape Metrics to Enhance Land Use/Land Cover Mapping and Dynamic Analysis in the Shandong Peninsula Urban Agglomeration Open
Accurate land use/land cover (LULC) maps generated through cloud computing can support large-scale land management. Leveraging the rich resources of Google Earth Engine (GEE) is essential for developing historical maps that facilitate the …
View article: The impact of land use change on ecosystem services in the Huaihai economic zone for evaluation and Spatiotemporal characterization
The impact of land use change on ecosystem services in the Huaihai economic zone for evaluation and Spatiotemporal characterization Open
A comprehensive understanding of the impact of land use change on ecosystem services is essential for regional sustainable development. This study aims to enhance the accuracy of ecosystem service value (ESV) assessment by accounting for r…
View article: Spatio-Temporal Differentiation and Influencing Factors of Urban Ecological Resilience in Xuzhou City
Spatio-Temporal Differentiation and Influencing Factors of Urban Ecological Resilience in Xuzhou City Open
Urban ecological resilience (UER) is vital for sustainable development, enabling cities to maintain stability in the face of environmental challenges. This study combined landscape pattern indices and spatial measurement methods, establish…
View article: The Spatiotemporal Evolution of Land Use Ecological Efficiency in the Huaihai Economic Zone: Insights from a Multi-Dimensional Framework and Geospatial Modeling
The Spatiotemporal Evolution of Land Use Ecological Efficiency in the Huaihai Economic Zone: Insights from a Multi-Dimensional Framework and Geospatial Modeling Open
Existing studies on eco-efficiency evaluation often neglect the social and ecological benefits of land use, as well as the spatial heterogeneity in the effects of natural factors. This study aims to establish a systematic eco-efficiency ev…
View article: The Identification of Land Use Conflicts and Policy Implications for Donghai County Based on the “Production–Living–Ecological” Functions
The Identification of Land Use Conflicts and Policy Implications for Donghai County Based on the “Production–Living–Ecological” Functions Open
The rapid development of urbanization has continuously encroached on people’s living space and ecological space, leading to an imbalance in territorial spatial functions. Identifying potential land use conflicts and optimizing land use str…
View article: The Identification of Land Use Conflicts and Policy Implications for Donghai County Based on the “Production–Living–Ecological” Functions
The Identification of Land Use Conflicts and Policy Implications for Donghai County Based on the “Production–Living–Ecological” Functions Open
The rapid development of urbanization has continuously encroached on people’s living space and ecological space, leading to an imbalance in territorial spatial functions. Identifying potential land use conflicts and optimizing land use str…
View article: The Impact of Territorial Spatial Transformation on Carbon Storage: A Case Study of Suqian, East China
The Impact of Territorial Spatial Transformation on Carbon Storage: A Case Study of Suqian, East China Open
The carbon storage of terrestrial ecosystems plays a crucial role in mitigating climate change, and the transformation of territorial space has a significant impact on the carbon cycle of a country’s terrestrial ecosystems. Therefore, eval…
View article: Land pressure evaluation in the Yangtze River Delta region: A perspective from production-living-ecology
Land pressure evaluation in the Yangtze River Delta region: A perspective from production-living-ecology Open
The limited land is under unprecedented pressure from production, living and ecology. In order to evaluate the land pressure in the Yangtze River Delta region in 1995, 2000, 2005, 2010, 2015, and 2020 from the perspective of production, li…
View article: The Transmission Effect and Influencing Factors of Land Pressure in the Yangtze River Delta Region from 1995–2020
The Transmission Effect and Influencing Factors of Land Pressure in the Yangtze River Delta Region from 1995–2020 Open
Human societal growth has greatly pressured available land resources. The key to reducing land pressure and fostering regional synergistic development is revealing the transmission effect of land pressure. We used a modified gravity model …
View article: Spatiotemporal Evolution Characteristics of Carbon Emissions from Industrial Land in Anhui Province, China
Spatiotemporal Evolution Characteristics of Carbon Emissions from Industrial Land in Anhui Province, China Open
Carbon emissions (CE) in Anhui Province are closely related to carbon emissions from industrial land (CEIL). In this study, based on industrial land, industrial energy consumption, and related statistical data in Anhui Province from 2000 t…
View article: Spatial correlations of land-use carbon emissions in the Yangtze River Delta region: A perspective from social network analysis
Spatial correlations of land-use carbon emissions in the Yangtze River Delta region: A perspective from social network analysis Open
The use and transformation of land by humans are the main cause of the increase in the concentration of carbon dioxide in the atmosphere. Using land-use data and socioeconomic statistics for 1995, 2000, 2005, 2010, 2015, and 2018, this stu…
View article: Random Forest Estimation and Trend Analysis of PM2.5 Concentration over the Huaihai Economic Zone, China (2000–2020)
Random Forest Estimation and Trend Analysis of PM2.5 Concentration over the Huaihai Economic Zone, China (2000–2020) Open
Consisting of ten cities in four Chinese provinces, the Huaihai Economic Zone has suffered serious air pollution over the last two decades, particularly of fine particulate matter (PM2.5). In this study, we used multi-source data, namely M…
View article: Identification of Urban Green Space Types and Estimation of Above-Ground Biomass Using Sentinel-1 and Sentinel-2 Data
Identification of Urban Green Space Types and Estimation of Above-Ground Biomass Using Sentinel-1 and Sentinel-2 Data Open
High-quality urban green space supports the healthy functioning of urban ecosystems. This study aimed to rapidly assess the distribution, and accurately estimate the above-ground biomass, of urban green space using remote sensing methods, …
View article: The Natural and Socioeconomic Influences on Land-Use Intensity: Evidence from China
The Natural and Socioeconomic Influences on Land-Use Intensity: Evidence from China Open
Intensive land use can support sustainable socioeconomic development, especially in the context of limited land resources and high population. It is measured by land-use intensity that reflects the degree of land-use efficiency. In order t…
View article: Spatiotemporal Characterization of the Urban Expansion Patterns in the Yangtze River Delta Region
Spatiotemporal Characterization of the Urban Expansion Patterns in the Yangtze River Delta Region Open
Characterizing urban expansion patterns is of great significance to planning and decision-making for urban agglomeration development. This study examined the urban expansion in the entire Yangtze River Delta Region (YRDR) with its land-use…
View article: Optimization of Modelling Population Density Estimation Based on Impervious Surfaces
Optimization of Modelling Population Density Estimation Based on Impervious Surfaces Open
Population data are key indicators of policymaking, public health, and land use in urban and ecological systems; however, traditional censuses are time-consuming, expensive, and laborious. This study proposes a method of modelling populati…
View article: Assessing the Urban Eco-Environmental Quality by the Remote-Sensing Ecological Index: Application to Tianjin, North China
Assessing the Urban Eco-Environmental Quality by the Remote-Sensing Ecological Index: Application to Tianjin, North China Open
The remote-sensing ecological index (RSEI), which is built with greenness, moisture, dryness, and heat, has become increasingly recognized for its use in urban eco-environment quality assessment. To improve the reliability of such assessme…
View article: Modeling Soil Moisture from Multisource Data by Stepwise Multilinear Regression: An Application to the Chinese Loess Plateau
Modeling Soil Moisture from Multisource Data by Stepwise Multilinear Regression: An Application to the Chinese Loess Plateau Open
This study aims to integrate multisource data to model the relative soil moisture (RSM) over the Chinese Loess Plateau in 2017 by stepwise multilinear regression (SMLR) in order to improve the spatial coverage of our previously published R…
View article: Improving Soil Moisture Estimation by Identification of NDVI Thresholds Optimization: An Application to the Chinese Loess Plateau
Improving Soil Moisture Estimation by Identification of NDVI Thresholds Optimization: An Application to the Chinese Loess Plateau Open
Accuracy soil moisture estimation at a relevant spatiotemporal scale is scarce but beneficial for understanding ecohydrological processes and improving weather forecasting and climate models, particularly in arid and semi-arid regions like…
View article: Optimal Grain Size Based Landscape PatternAnalysis for Shanghai Using Landsat Imagesfrom 1998 to 2017
Optimal Grain Size Based Landscape PatternAnalysis for Shanghai Using Landsat Imagesfrom 1998 to 2017 Open
While they are an effective tool for studying landscape patterns and describing land-use change, landscape metrics are sensitive to variation in spatial grain sizes.It is therefore crucially important to select an optimal grain size for ch…
View article: Assessment of Land Ecological Security and Analysis of Influencing Factors in Chaohu Lake Basin, China from 1998–2018
Assessment of Land Ecological Security and Analysis of Influencing Factors in Chaohu Lake Basin, China from 1998–2018 Open
The land ecosystem provides essential natural resources for the survival and development of human beings. Therefore, land ecological security (LES) acts as a vital part of the sustainable development of human society and economy. This stud…
View article: Investigating the Impacts of Urbanization on PM2.5 Pollution in the Yangtze River Delta of China: A Spatial Panel Data Approach
Investigating the Impacts of Urbanization on PM2.5 Pollution in the Yangtze River Delta of China: A Spatial Panel Data Approach Open
Urbanization is a key determinant of fine particulate matter (PM2.5) pollution variability. However, there is a limited understanding of different urbanization factors’ roles in PM2.5 pollution. Using satellite-derived PM2.5 data from 2002…
View article: Soil Moisture Estimation for the Chinese Loess Plateau Using MODIS-derived ATI and TVDI
Soil Moisture Estimation for the Chinese Loess Plateau Using MODIS-derived ATI and TVDI Open
Timely and effective estimation and monitoring of soil moisture (SM) provides not only an understanding of regional SM status for agricultural management or potential drought but also a basis for characterizing water and energy exchange. T…
View article: Simulation of Land Use Change and Ecosystem Service Value Dynamics under Ecological Constraints in Anhui Province, China
Simulation of Land Use Change and Ecosystem Service Value Dynamics under Ecological Constraints in Anhui Province, China Open
Land use change has a significant impact on the structure and function of ecosystems, and the transformation of ecosystems affects the mode and efficiency of land use, which reflects a mutual interaction relationship. The prediction and si…
View article: Testing a Comprehensive Volcanic Risk Assessment of Tenerife by Volcanic Hazard Simulations and Social Vulnerability Analysis
Testing a Comprehensive Volcanic Risk Assessment of Tenerife by Volcanic Hazard Simulations and Social Vulnerability Analysis Open
Volcanic activity remains highly detrimental to populations, property and activities in the range of its products. In order to reduce the impact of volcanic processes and products, it is critically important to conduct comprehensive volcan…
View article: Estimating Urban Vegetation Biomass from Sentinel-2A Image Data
Estimating Urban Vegetation Biomass from Sentinel-2A Image Data Open
Urban vegetation biomass is a key indicator of the carbon storage and sequestration capacity and ecological effect of an urban ecosystem. Rapid and effective monitoring and measurement of urban vegetation biomass provide not only an unders…
View article: Spatiotemporal Dynamics of Ecosystem Service Value Determined by Land-Use Changes in the Urbanization of Anhui Province, China
Spatiotemporal Dynamics of Ecosystem Service Value Determined by Land-Use Changes in the Urbanization of Anhui Province, China Open
Urbanization-induced land-use change will lead to variations in the demand and supply of ecosystem services, thus significantly affecting regional ecosystem services. The continuous degradation of ecosystem functions has become a serious p…
View article: Urban growth simulation in different scenarios using the SLEUTH model: A case study of Hefei, East China
Urban growth simulation in different scenarios using the SLEUTH model: A case study of Hefei, East China Open
As uncontrolled urban growth has increasingly challenged the sustainable use of urban land, it is critically important to model urban growth from different perspectives. Using the SLEUTH (Slope, Land use, Exclusion, Urban, Transportation, …
View article: Spatiotemporal Variability and Influencing Factors of Aerosol Optical Depth over the Pan Yangtze River Delta during the 2014–2017 Period
Spatiotemporal Variability and Influencing Factors of Aerosol Optical Depth over the Pan Yangtze River Delta during the 2014–2017 Period Open
Large amounts of aerosol particles suspended in the atmosphere pose a serious challenge to the climate and human health. In this study, we produced a dataset through merging the Moderate Resolution Imaging Spectrometers (MODIS) Collection …