Article
Development Studies
Carolina Baldini, Mariana Edith Marasas, Andrea Alejandra Drozd
Summary: The study quantified three decades of land-use change in a major horticultural region of South America, revealing a decrease in horticulture extent, a significant increase in greenhouses, rapid expansion of high density urbanization, and replacement of natural grasslands. The results demonstrate regional urban growth and productive intensification processes, leading to losses of semi-natural areas.
JOURNAL OF ENVIRONMENTAL PLANNING AND MANAGEMENT
(2022)
Article
Forestry
Eyasu Markos Woldesemayat, Paolo Vincenzo Genovese
Summary: The study on Addis Ababa, the capital of Ethiopia, shows a rapid urbanization and urban green space change over the past three decades. The urban expansion pattern is mainly characterized by outlying growth, with a spatial tradeoff between urban areas and Urban Green Spaces.
Article
Development Studies
Myungjin Shin, Jeong-Hann Pae
Summary: This study analyses the case of the Red Brick Landscape Preservation Project at Seoul Forest Park Alleys, an urban revitalisation project implemented between 2018 and 2021, based on the idea of authenticity and post-industrial landscape. The study reveals discrepancies in preservation, use, and implementation, as well as the selective nature of the project and the lack of evidence for its authenticity. The criticisms in this article may extend beyond the specific case and are relevant to post-industrial landscapes globally.
HABITAT INTERNATIONAL
(2022)
Article
Environmental Sciences
Daosheng Chen, Fei Zhang, Mengru Zhang, Qingyan Meng, Chi Yung Jim, Jingchao Shi, Mou Leong Tan, Xu Ma
Summary: This study investigated the influence of urban green space landscape and vegetation factors on surface temperature in Urumqi city in northwest China. Numerical models were developed using remote sensing techniques to predict surface temperature. The results showed that a combination of landscape metrics and vegetation indexes can effectively predict surface temperature, with the random forest model demonstrating the highest accuracy. The most influential factor was found to be the difference vegetation index.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Multidisciplinary
Yufan Wu, Jiangbo Wang, Aiping Gou
Summary: As an important spatial carrier, construction land plays a critical role in Hong Kong's economic and social activities. Understanding its spatial and temporal evolution and driving mechanism is crucial for promoting sustainable urban development. This study evaluates the evolutionary characteristics and driving factors of construction land in Hong Kong from 1972-2020.
APPLIED SCIENCES-BASEL
(2023)
Article
Environmental Studies
De Tong, Yuxi Yuan, Xiaoguang Wang
Summary: The rate of land urbanization in China has been rapidly increasing, with studies finding that land ownership significantly influences land development, especially with collective ownership having a positive impact. Recommendations include developing more tailored policies to improve the management of collectively-owned lands and promote urban redevelopment.
Article
Construction & Building Technology
Zhe Li, Xiaoshan Lin, Xiao Han, Xinyi Lu, Hengyi Zhao
Summary: Public landscape efficiency is a research hotspot in contemporary landscape performance, with positive effects on the renewal of micro landscape space. This study quantitatively analyzed the landscape efficiency of subway station entrances by establishing a structural equation model with a parameter system, and found that green space landscapes and traffic capacity impress the landscape efficiency of subway station entrances.
Article
Environmental Studies
Alebel B. Weldesilassie, Genanew B. Worku
Summary: This study explores the implementation of land lease policy in Ethiopia, particularly in Addis Ababa, and finds a significant gap between land auction guide and sale prices. The study also highlights the influence of non-economic factors on the urban land market, suggesting that it is not solely driven by economic rationale.
Article
Remote Sensing
Shuai Xu, Xiaolin Zhu, Eileen H. Helmer, Xiaoyue Tan, Jiaqi Tian, Xuehong Chen
Summary: The study found that the impacts of super typhoon Mangkhut on urban vegetation damage show high spatial heterogeneity and are influenced by factors such as wind intensity, land cover types, and surrounding building height. Urban vegetation damage is positively related to vegetation sparseness and negatively correlated to the height of surrounding buildings.
INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
(2021)
Article
Environmental Sciences
Subhanil Guha, Himanshu Govil
Summary: The present study examines the seasonal variation of land surface temperature (LST) and its relationship with normalized difference vegetation index (NDVI) in different land use/land cover (LULC) types in Raipur City, India. The findings show that LST is highest in bare lands and built-up areas, while it is lowest in green vegetation. The correlation between LST and NDVI varies across seasons and LULC types.
GEOCARTO INTERNATIONAL
(2022)
Article
Environmental Studies
Yang Zhou, Zhen Zhong, Guoqiang Cheng
Summary: Knowledge of cultivated land conservation and construction land expansion in China is lacking accurate and reliable data. This study analyzed the spatio-temporal patterns and driving forces of land change in China based on three nationwide land surveys. Results showed that China's cultivated land increased first and then decreased, with distinct regional variations. Construction land expanded nationwide, especially in rural settlements. The extensive and inefficient use of rural construction land poses a serious problem. The expansion of construction land was mainly driven by built-up areas and population growth, leading to a double failure of China's land policy.
Article
Environmental Studies
Weiqian Lei, Limin Jiao, Gang Xu
Summary: This study investigates the scaling relationships between urban land and population in over 500 Chinese cities. The results show that different types of urban land have robust scaling relationships with population, but with different scaling exponents. Industrial land has a faster scaling relationship with population than expected, while other types of urban land exhibit sub-linear relationships. The study also finds that land supply is closely related to housing prices and industrial outputs.
Article
Construction & Building Technology
Penglai Ran, Amy E. Frazier, Cong Xia, Damien S. Tiando, Yingbin Feng
Summary: Healthy ecosystems are crucial for sustainable urbanization. This study examines the relationships between urban landscape patterns and ecosystem health in 212 major Chinese cities from 2000 to 2020. Results show that there is a decline in ecosystem health in central-eastern China, and urban growth remains a major cause of ecological degradation. Mountain cities are particularly sensitive to changes in urban patches. This research highlights the importance of spatiotemporal analysis and provides guidelines for sustainable urban development.
SUSTAINABLE CITIES AND SOCIETY
(2023)
Article
Construction & Building Technology
Peng Tian, Jialin Li, Luodan Cao, Ruiliang Pu, Zhongyi Wang, Haitao Zhang, Huilin Chen, Hongbo Gong
Summary: This study used Landsat thermal sensor images to retrieve urban land surface temperature and revealed spatiotemporal characteristics of surface urban heat island effect from the perspective of urban expansion and urban green infrastructure. The results indicate that the Hangzhou city SUHI effect was prominent. The relationship between SUHI effect, urban expansion, and urban green infrastructure varied in different time periods.
SUSTAINABLE CITIES AND SOCIETY
(2021)
Article
Green & Sustainable Science & Technology
Hongrun Ju, Chunyan Niu, Shengrui Zhang, Wei Jiang, Zhaohui Zhang, Xuliang Zhang, Ziyi Yang, Yurong Cui
Summary: The study investigated the spatiotemporal pattern of ecological risk in coastal areas, focusing on the Shandong Peninsula, and determined the optimal assessment scale using semivariogram analysis. Results showed low ecological risk with specific aggregation patterns. Protecting cropland is crucial for food safety and ecosystem stability in the region.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Malgorzata Golub, Nikaan Koupaei-Abyazani, Timo Vesala, Ivan Mammarella, Anne Ojala, Gil Bohrer, Gesa A. Weyhenmeyer, Peter D. Blanken, Werner Eugster, Franziska Koebsch, Jiquan Chen, Kevin Czajkowski, Chandrashekhar Deshmukh, Frederic Guerin, Jouni Heiskanen, Elyn Humphreys, Anders Jonsson, Jan Karlsson, George Kling, Xuhui Lee, Heping Liu, Annalea Lohila, Erik Lundin, Tim Morin, Eva Podgrajsek, Maria Provenzale, Anna Rutgersson, Torsten Sachs, Erik Sahlee, Dominique Serca, Changliang Shao, Christopher Spence, Ian B. Strachan, Wei Xiao, Ankur R. Desai
Summary: This study synthesizes 171 site-months of CO2 flux measurements from 13 lakes and reservoirs in the Northern Hemisphere. It finds pronounced sub-annual variability in CO2 flux with nighttime emissions exceeding daytime emissions. The study highlights the importance of continuous measurements and better characterization of short- and long-term variability for accurate carbon budgeting.
ENVIRONMENTAL RESEARCH LETTERS
(2023)
Article
Environmental Sciences
Zhihui Yuan, Siqin Tong, Gang Bao, Jiquan Chen, Shan Yin, Fei Li, Chula Sa, Yuhai Bao
Summary: We investigated the spatiotemporal patterns and environmental controls of the end of the vegetation growing season (EOS) in autumn in alpine and temperate grasslands of China from 2001 to 2020. The results show that the EOS date is earlier in alpine grasslands compared to temperate grasslands. Preseason temperature has a positive control on the EOS in most alpine grasslands and some regions of the temperate grasslands, while drought exerts positive effects on the EOS in certain regions. These findings highlight the importance of considering drought impacts and their interactions with temperature in vegetation autumn phenology models for grasslands.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Plant Sciences
Mauricio Tejera-Nieves, Michael Abraha, Jiquan Chen, Stephen K. Hamilton, G. Philip Robertson, Berkley Walker James
Summary: Leaf photosynthesis of perennial grasses declines from early to late summer, and water availability is associated with this decline. Despite reduced water availability, the photosynthetic decline is similar in grasses with and without rainfall exclusion, suggesting water deficit is not the sole driver of the decline. Rhizome starch accumulation and sink activity likely explain the observed photosynthetic declines towards the end of the growing season.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Energy & Fuels
Megan Belongeay, Gabriela Shirkey, Marina Monteiro Lunardi, Gonzalo Rodriguez-Garcia, Parikhit Sinha, Richard Corkish, Rodney A. Stewart, Annick Anctil, Jiquan Chen, Ilke Celik
Summary: Solar photovoltaics (PV) is a promising power-generation technology, and assessing its applications from a material-energy-water (MEW) nexus perspective is crucial. Through life cycle assessment, we found that energy flows dominated the MEW network, with minimal impacts from materials and water flows. The analysis highlighted the significance of material circularity, particularly the impact of glass layers and the positive effects of increased power-conversion efficiency and recycled feedstock on circularity rates.
Editorial Material
Biodiversity Conservation
Jiquan Chen
GLOBAL CHANGE BIOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Gonzalo Rodriguez-Garcia, Hui-Chun Fu, Patrick Sullivan, Chih-Jung Chen, Zhaoning Song, Jiquan Chen, Yanfa Yan, Dawei Feng, Song Jin, Ilke Celik
Summary: Integrated solar flow batteries (SFBs) combine electricity generation and storage functions in one device, with high efficiency, compact design, and reduced electronics. However, their environmental performance is not well understood. This study presents the first life cycle assessment of a lab-scale SFB using a perovskite/silicon tandem photoelectrode and compares it with a competitor: a PV panel with the same tandem and a lithium manganese oxide battery. The results show that electrolytes contribute to around 59% of the environmental impacts, while the structure and PV component contribute 23% and 18% respectively. Replacing materials in the SFB's structure can significantly reduce ozone depletion and global warming potential impacts.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Ecology
Sakshi Saraf, Ranjeet John, Reza Goljani Amirkhiz, Venkatesh Kolluru, Khushboo Jain, Matthew Rigge, Vincenzo Giannico, Stephen Boyte, Jiquan Chen, Geoffrey Henebry, Meghann Jarchow, Raffaele Lafortezza
Summary: By training machine learning models, the study found that yellow sweetclover is spatially concentrated in western South Dakota, mainly in counties such as Butte, Pennington, and Corson, as well as floodplain areas around White River, Bad River, and Badlands National Park. These prediction maps can assist land managers in devising management strategies against yellow sweetclover outbreaks and can serve as a prototype for mapping other invasive plant species in similar regions.
Article
Multidisciplinary Sciences
Zhaoying Zhang, Alessandro Cescatti, Ying-Ping Wang, Pierre Gentine, Jingfeng Xiao, Luis Guanter, Alfredo R. Huete, Jin Wu, Jing M. Chen, Weimin Ju, Josep Penuelas, Yongguang Zhang
Summary: Photosynthesis and evapotranspiration in Amazonian forests have significant impacts on global carbon and water cycles. However, their diurnal patterns and responses to atmospheric warming and drying at regional scale are still not well understood. Using proxies from the International Space Station, we found a significant decrease in afternoon photosynthesis and evapotranspiration during the dry season, while morning photosynthesis showed a positive response to vapor pressure deficit (VPD) and afternoon photosynthesis showed a negative response. Furthermore, we projected that the decrease in afternoon photosynthesis will be compensated by an increase in the morning in future dry seasons. These findings provide new insights into the complex interplay between climate and carbon and water fluxes in Amazonian forests and improve the reliability of future projections.
Review
Environmental Sciences
Lu-Ping Qu, Jiquan Chen, Jingfeng Xiao, Hans J. De Boeck, Gang Dong, Shi-Cheng Jiang, Ya-Lin Hu, Yi-Xuan Wang, Chang-Liang Shao
Summary: Extreme heatwaves have increasingly significant impacts on global terrestrial ecosystems, with a lack of accurate prediction due to a lack of consistent understanding of the mechanisms involved. By analyzing complexity factors in heatwave studies, such as determining heatwave events, ecosystem responses, and vegetation status, this research proposes a holistic approach to understanding heatwave impacts that considers multiple stages and timeframes. The study also explores the importance of timing and different annual heatwave patterns. A conceptual framework is proposed to guide regional assessments and adaptation strategies.
ENVIRONMENTAL RESEARCH
(2024)
Article
Agronomy
Cheyenne Lei, Jiquan Chen, G. Philip Robertson
Summary: Changes in land surface albedo can impact ecosystem energy balance and climate. This study in southwest Michigan, USA, explored the albedo of six bioenergy cropping systems and found significant variations among different crops, with cellulosic crops being more reflective. Further management interventions are needed to maximize the positive climate benefits of bioenergy crops.
GLOBAL CHANGE BIOLOGY BIOENERGY
(2023)
Article
Multidisciplinary Sciences
Fei Li, Jingfeng Xiao, Jiquan Chen, Ashley Ballantyne, Ke Jin, Bing Li, Michael Abraha, Ranjeet John
Summary: Global ecosystem water use efficiency (WUEeco) has not increased since 2001 due to the asymmetric effects of increased vapor pressure deficit (VPD), which suppressed photosynthesis and enhanced evapotranspiration (ET). Projected increases in VPD are expected to affect the coupling of terrestrial carbon and water cycles in the future.
Article
Environmental Sciences
Lulu Hou, Xiaoping Xin, Haixia Sun, Yi Tao, Jiquan Chen, Ruirui Yan, Xiang Zhang, Beibei Shen, Ahmed Ibrahim Ahmed Altome, Yousif Mohamed Zainelabdeen Hamed, Xu Wang, Serekpaev Nurlan, Nogayev Adilbek, Akhylbekova Balzhan, Maira Kussainova, Amartuvshin Amarjargal, Wei Fang, Alim Pulatov
Summary: Livestock-grassland interactions are crucial in grazed grassland ecosystems, with herbivores influencing plant community and ecosystem functions. This study investigated the effects of grazing intensity on cattle behavior in the Eurasian steppe ecosystem through a 2-year grazing intensity experiment. The results showed that grazing intensity was the main driver of cattle behavior, with foraging time, distance travelled, and utilization area ratio (UAR) increasing with grazing intensity. The study also found that canopy height, above-ground biomass, and forage quality influenced cattle behavior. These findings have implications for grassland ecosystem management and sustainability.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Beibei Shen, Jingpeng Guo, Zhenwang Li, Jiquan Chen, Wei Fang, Maira Kussainova, Amartuvshin Amarjargal, Alim Pulatov, Ruirui Yan, Oleg A. Anenkhonov, Wenneng Zhou, Xiaoping Xin
Summary: Leaf area index (LAI) is an important indicator for vegetation structure and function, and its accuracy assessment is crucial for vegetation condition assessment and ecosystem modeling. In this study, the performance of four commonly used LAI products (GEOV2, GLASS, GLOBMAP, and MODIS) was evaluated, and their spatial and temporal consistency across different grassland types in drylands were analyzed. The results showed that GLASS LAI performed better in meadow steppe and typical steppe, while GEOV2 LAI performed better in desert steppe. Overall, the four LAI products exhibited high consistency across the region, with GEOV2 LAI showing the highest correlation. The largest differences in LAI occurred in July for all grassland types. The findings provide a basis for the application of LAI products in different grassland types and highlight the need for highly accurate and reliable satellite-based LAI products focused on grassland at regional and global scales.
Article
Environmental Sciences
Xinyao Xie, Jing M. Chen, Wenping Yuan, Xiaobin Guan, Huaan Jin, Jiye Leng
Summary: Vegetation in mountainous areas contributes significantly to global gross primary productivity (GPP), but the effects of topography on radiation and water redistributions have been overlooked in existing global GPP data sets. This study developed a topographical correction index (TCI) based on simulated soil water redistribution, radiation redistribution, and redistribution of climate factors, and applied it to four GPP data sets. Results showed that integrating topography-induced interactions improved the accuracy of GPP estimation, with reduced mean-bias-error (MBE) and Root-Mean-Square-Error (RMSE). This study highlights the importance of considering topographical effects in GPP estimation to understand carbon budgets in mountain ecosystems.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2023)
Article
Microbiology
Yan Xie, Liuqing Shi, Keke Cheng, Yang Li, Shixiao Yu
Summary: The molecular mechanism of host-specific pathogenesis in the Endomelanconiopsis endophytica strain LS29, a pathogen of the subtropical tree Castanopsis fissa, remains to be explored. Through transcriptome sequencing, it was found that the fungus repressed other microbes and produced antibiotics to attack the host tissue within 24 hours of infection. Various effectors were secreted to recognize the host plant, but their expression regulation changed significantly after 24 hours, indicating a key time point for host recognition and specific infection. Only a few effectors were identified as specific effectors involved in the early infection process.