Article
Environmental Sciences
Weilin Wang, Bin Li, Fei Su, Zhenfeng Jiang, Shulu Chen
Summary: Ecological security patterns (ESPs) provide a solution for balancing the conflicts between ecological conservation and socio-economic development and maintaining sustainable regional development. Identifying sustainable ESPs should be given attention to meet future urban expansion needs. This study incorporates future land-use patterns into the ESP identification framework to reduce potential impact on identified ESPs and to reserve space for future urban development. The results for the Changsha-Zhuzhou-Xiangtan urban agglomeration show the extraction of 57 corridors, including 36 key corridors in specific districts and counties, and 21 potential corridors in the urban built-up area. Additionally, pinch points and barrier points are identified, and the comparison of ESP identification with and without simulated land-use patterns favors sustainable ESP construction.
Article
Biodiversity Conservation
Yangyang Hu, Yu Li, Yijie Li, Jiacheng Wu, Huazhu Zheng, Hongming He
Summary: This study examines the conflict between urban expansion and ecological environmental protection in Zhaotong City, China. It investigates the spatial characteristics of urban expansion and analyzes its formation mechanisms. The results indicate rapid urban expansion in Zhaotong City, with concentrated urbanization and distinct urban boundaries observed in certain areas. Three primary urban expansion axes are identified through simulation. The study reveals the scenario pattern of urban expansion evolution in Zhaotong City, highlighting the need to integrate ecological considerations into urban planning processes for sustainable development.
ECOLOGICAL INDICATORS
(2023)
Article
Environmental Sciences
Haipeng Ye, Zhuofan Zheng, Xintong Liu, Shu Wang, Hongrui Zhao
Summary: Rapid urban expansion caused by population growth has resulted in various socioeconomic and environmental issues that are crucial for sustainable development worldwide. This study proposes a hybrid model combining the urban scaling law (USL) and the ANN-CA model for predicting urban expansion. By calculating the law exponent at a single-city scale, the USL is incorporated into the model. Additionally, panel data regression is used to estimate future urban land demand based on the USL. Finally, the ANN-CA model is enhanced with area and ecological constraints to simulate spatial urban expansion. The model has been successfully applied to predict the expansion of Shenzhen, with the urban land area projected to increase from 816.45 km2 in 2020 to 842.48 km2 in 2025. The effectiveness and accuracy of this model have been demonstrated through comparisons with traditional prediction methods. Furthermore, the scaling exponent can reflect urbanization levels and identify overconstructed cities.
Article
Environmental Studies
Xiao Ouyang, Jun Xu, Jiayu Li, Xiao Wei, Yonghui Li
Summary: Evaluating urban-agriculture-ecological space and delineating the ecological security pattern are crucial for optimizing land space and socio-economic development. This study used various models to simulate the trends of urban development space, ecological space, and urban agricultural space in the Changsha-Zhuzhou-Xiangtan urban agglomeration under different development scenarios. The results showed that socio-economic variables and spillover effects were the main factors influencing land space expansion, and the urban construction space and growth boundaries varied across scenarios.
Article
Multidisciplinary Sciences
Weiqi Zhou, Wenjuan Yu, Yuguo Qian, Lijian Han, Steward T. A. Pickett, Jing Wang, Weifeng Li, Zhiyun Ouyang
Summary: The environmental degradation caused by rapid urbanization is a pressing global issue. In the case of China, the massive and uneven urbanization from 2000 to 2015 resulted in overall less green and warmer urban areas with exacerbated PM2.5 pollution. However, the environmental impacts differed between newly developed and older areas of cities, with adverse impacts being more prominent in newly urbanized areas. Additionally, as cities expand and connect to form urban megaregions, regional environmental issues are emerging. Understanding the environmental consequences of internal city dynamics and the formation of urban megaregions is crucial in turning urbanization into an opportunity for sustainable development.
NATIONAL SCIENCE REVIEW
(2022)
Article
Environmental Studies
Liye Wang, Siyu Zhang, Lanping Tang, Yanchi Lu, Yanfang Liu, Yaolin Liu
Summary: This study proposes an optimization method for allocating urban land based on ULUI to increase economic benefits and reduce the loss of ecosystem service value. Results show that many prefectural cities experienced an increase in economic output and a decrease in ecological losses through this optimization approach.
Article
Environmental Studies
Ludovica Nasca, Salvatore Giuffrida, Maria Rosa Trovato
Summary: This paper proposes an inter-scalar and multi-polar analysis evaluation model for the territory of the Enna district, aiming to provide a robust representation of the salient aspects of internal areas. The model explores the relations between urban and life quality and provides multiple comparisons and assessments at different levels. The focus on the cities network offers insights for territorial policies.
Article
Environmental Sciences
Hanxiang Xiong, Chuanming Ma, Minghong Li, Jiayao Tan, Yuzhou Wang
Summary: This study selected Enshi City, China as the study area and created 15 landslide susceptibility maps by dividing landslide affecting factors into base affecting factors and land-related affecting factors. The results showed that the heuristic multi-layer perceptron model with land-related affecting factors achieved the highest model performance. It is suggested to develop more hybrid models that consider dynamic factors, improve the accuracy of land use and cover prediction, and enhance the management of land planning and landslide hazards.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Jiao Dong, Yan Lyu
Summary: This study provides a comprehensive assessment of urban land ecological security (ULES) in Hefei City based on land use change, land ecological sensitivity, and socio-economic impacts. The findings reveal significant changes in land use, with human activities having a greater impact on land ecology than natural factors. To enhance land ecological security, it is necessary to restrict human activities.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Jie Chen, Ruijie Shi, Geng Sun, Ya Guo, Min Deng, Xiuyuan Zhang
Summary: Urbanization changes surface landscapes, leading to local changes in land surface temperature that create hot weather and impact livability, especially for mid- and low-latitude cities. Optimizing urban landscapes and adjusting the thermal environment is crucial for improving comfort and achieving sustainable urban development.
Article
Environmental Studies
Dong Ouyang, Xigang Zhu, Xingguang Liu, Renfei He, Qian Wan
Summary: The study reveals significant heterogeneity in the relationship between construction land change and its driving factors in county-level cities, with population, GDP size, transportation, and industrial structure being key determinants. Additionally, fiscal revenue, social consumption, utility investment, and real economy have weak individual action forces but can achieve significant synergistic enhancement effects when combined with other factors. It is recommended to design differentiated and precise construction land control and spatial governance policies according to local conditions for urban construction land change at different scales and their driving mechanisms.
Article
Environmental Sciences
Pengfei Guo, Haiying Wang, Fen Qin, Changhong Miao, Fangfang Zhang
Summary: Land use simulations are critical in predicting the impact of land use change on the Earth. In this study, the driving mechanisms of land use change in Zhengzhou were analyzed, and the quantity demand and spatial distribution of land use were predicted under different scenarios. The PLUS-SA model demonstrated higher accuracy compared to the traditional models.
Article
Environmental Sciences
Huang Tuofu, He Qingyun, Ouyang Xiao
Summary: This study analyzes the influence of natural amenities on housing prices in Changsha, an emerging mega-city in China. The results show that the impact of natural amenities on housing prices has gradually expanded over the years, particularly for the XiangRiver Scenic Belt and Wetland Park.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Forestry
Rongyao Wang, Junsan Zhao, Yilin Lin, Guoping Chen, Qing Cao, Yixiang Feng
Summary: This study constructed a coupled model to analyze the impact of land use change on carbon storage under different future scenarios, finding that forest area may decrease in the future scenarios, leading to the most serious decrease in carbon storage under the SSP245 scenario. The study also found that carbon storage in the Central Yunnan urban agglomeration exhibits a high accumulation pattern in the east and a low accumulation pattern in the middle.
Article
Environmental Studies
Chuanyong Zhang, Yanjiao Song
Summary: The gains and losses of farmers' welfare brought by China's land expropriation have been widely discussed, but little research has focused on the motivation of land-lost farmers to settle in cities. This study uses data from the 2016 China's Labor-force Dynamic Survey to find that land expropriation strengthens land-lost farmers' willingness to settle in urban areas. Economic incentives and social-cultural factors are identified as the underlying mechanisms influencing the decision of land-lost farmers to migrate to cities.
Review
Engineering, Environmental
Xi Hu, Xinjiang Hu, Qingqing Peng, Lu Zhou, Xiaofei Tan, Luhua Jiang, Chunfang Tang, Hui Wang, Shaoheng Liu, Yaqin Wang, Ziqi Ning
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Environmental Sciences
Xiaoxi Cai, Jiang Li, Yunguo Liu, Xinjiang Hu, Xiaofei Tan, Shaobo Liu, Hui Wang, Yanling Gu, Lerong Luo
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2020)
Article
Environmental Sciences
Daixi Zhou, Guangyu Xie, Xinjiang Hu, Xiaoxi Cai, Yunlin Zhao, Xi Hu, Qi Jin, Xiaohua Fu, Xiaofei Tan, Chong Liang, Kaiqi Lai, Hui Wang, Chunfang Tang
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2020)
Article
Environmental Sciences
Ni Liu, Yunguo Liu, Xiaofei Tan, Meifang Li, Shaobo Liu, Xinjiang Hu, Peng Zhang, Mingyang Dai, Weihua Xu, Jun Wen
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Environmental Sciences
Wei Zhang, Xiaofei Tan, Yanling Gu, Shaobo Liu, Yunguo Liu, Xinjiang Hu, Jiang Li, Yahui Zhou, Sijia Liu, Yuan He
Article
Engineering, Chemical
Guangyu Xie, Hui Wang, Yaoyu Zhou, Yuxuan Du, Chong Liang, Linli Long, Kaiqi Lai, WenXuan Li, Xiaofei Tan, Qi Jin, Guoqiang Qiu, Daixi Zhou, Huiwen Huo, Xinjiang Hu, Xiyan Xu
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2020)
Article
Multidisciplinary Sciences
Wen Liu, Tianpei He, Yonghong Wang, Ge Ning, Zhenggang Xu, Xiaoyong Chen, Xinjiang Hu, Yaohui Wu, Yunlin Zhao
SCIENTIFIC REPORTS
(2020)
Article
Environmental Sciences
Hui Wang, Yiming Zhou, Xinjiang Hu, Yuan Guo, Xiaoxi Cai, Chunjie Liu, Ping Wang, Yunguo Liu
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2020)
Article
Chemistry, Multidisciplinary
Xinjiang Hu, Daixi Zhou, Hui Wang, Wenlong Zhang, Haoxiang Zhong, Yongsheng Chen
Summary: Single atom catalysts (SACs) based on M1-Nx-Cy have emerged as a frontier research field in catalysis, offering high reactivity, maximum atomic utilization, and high selectivity. This review summarizes the fabrication methods of M1-Nx-Cy based SACs via support anchoring and coordination design strategies, characterizes single metal atoms, and discusses their environmental applications. The potential of M1-Nx-Cy based SACs to address current and future environmental pollution problems is emphasized.
CHINESE CHEMICAL LETTERS
(2023)
Article
Engineering, Environmental
Yuanhao Ouyang, Honghui Jiang, Haoxiang Zhong, Guoyu Li, Xiaodong Ji, Qi Jin, Wei Xue, Xinjiang Hu, Mingshan Zhu
Summary: This study developed a g-C3N4 with N2C-type defects/MoO3 Z-scheme photocatalyst (D-CN/MoO3) for the degradation of microcystin (MC-LR) in visible light. The D-CN/MoO3 could photodegrade 100% of MC-LR within 25 min, which was significantly higher than pure g-C3N4. The degradation mechanism was found to be the selective attack of 1O2 on the Adda side chain of MC-LR and subsequent decarboxylation reaction of h+, leading to effective mineralization and reduced toxicity of MC-LR. The D-CN/MoO3 also demonstrated excellent stability and adaptability, showing potential for decontamination of MC-LR in eutrophic water.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Engineering, Environmental
Qianzhen Fang, Hailan Yang, Shujing Ye, Peng Zhang, Mingyang Dai, Xinjiang Hu, Yanling Gu, Xiaofei Tan
Summary: This review comprehensively discusses the generation pathways and identification methods of singlet oxygen (1O2) in catalysts/PMS systems. The generation pathways are summarized based on the inclusion of metal element in catalysts, while the influence of metal valence states and geometric structures on 1O2 generation is thoroughly discussed. Identification methods include EPR, quenching experiments, reaction in D2O solution, and chemical probe tests. Several perspectives for further studies on 1O2 in catalysts/PMS systems are proposed.
Article
Engineering, Environmental
Chenxi Huang, Meifang Li, Ping Wang, Shiyu Song, Beixia Chai, Meijuan Zhang, Xinjiang Hu, Jingju Cai, Shaohua Wu, Qingyun He
Summary: A novel nitrogen-doped magnetic graphene oxide confined Fe-Co dual single-atom catalyst was prepared by one-step molten salt assisted high-temperature pyrolysis. The catalyst showed significant removal efficiency for tetracycline and exhibited good separation and catalytic performance. The effects of key parameters on the degradation of tetracycline were investigated, and the catalytic potential in actual water and regeneration performance of the material were evaluated.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Qizhuo Liu, Xiaodong Ji, Jiaqin Deng, Honghui Jiang, Guoyu Li, Yuanhao Ouyang, Xin Li, Chunfang Tang, Xiaofei Tan, Xinjiang Hu
Summary: In this study, a high photocatalytic activity porous carbon nitride nanosheet was prepared using a simple pyrolysis technique. The nanosheet has a larger specific surface area and higher charge mobility, resulting in enhanced degradation efficiency of microcystin.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Jiaqin Deng, Ying Fang, Changlan Hou, Yanru Zhang, Meifang Li, Jianing Han, Wanxuan Du, Chunfang Tang, Xinjiang Hu
Summary: This study investigates the regeneration of spent biochar adsorbent and the degradation of adsorbed PFOA using ultrasonic assisted activation of persulfate. The results demonstrate that PFOA can be efficiently degraded by the synergistic effect of ultrasound and persulfate.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Qi Jin, Guangyu Xie, Xiaoxi Cai, Xinjiang Hu, Hui Wang, Guoqiang Qiu, Weixuan Wang, Daixi Zhou, Huiwen Huo, Xiaofei Tan, Yunlin Zhao