Article
Geosciences, Multidisciplinary
Jean Moussa Kourouma, Emmanuel Eze, Emnet Negash, Darius Phiri, Royd Vinya, Atkilt Girma, Amanuel Zenebe
Summary: The study aimed to characterize agricultural drought in Ethiopia and understand its effects on crop yield using NDVI and VCI values. Results showed that VCI and NDVI data are useful for drought monitoring in Ethiopia, and that crops like maize, teff, and beans are more vulnerable to drought.
GEOMATICS NATURAL HAZARDS & RISK
(2021)
Article
Environmental Sciences
Ilknur Zeren Cetin, Tugrul Varol, Halil Baris Ozel, Hakan Sevik
Summary: Economic and industrial development have led to population concentration in cities, resulting in the urban heat island effect. This study analyzed the changes in the urban heat island effect in the central district of Bartin over the past 30 years and found increases in urban surfaces and land surface temperatures, as well as a decline in vegetation. The results emphasized the importance of increasing open and green areas to mitigate the negative effects of the urban heat island.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Sajjad Hussain, Muhammad Mubeen, Ashfaq Ahmad, Hamid Majeed, Saeed Ahmad Qaisrani, Hafiz Mohkum Hammad, Muhammad Amjad, Iftikhar Ahmad, Shah Fahad, Naveed Ahmad, Wajid Nasim
Summary: This research examines the impact of changes in land use/land cover on land surface temperature (LST) in Southern Punjab, Pakistan, using remote sensing data. The study finds that the expansion of buildings and conversion of vegetation land into commercial and residential areas has accelerated the increase of LST. The study also shows a negative correlation between NDVI and NDWI with lower LST, and a positive correlation between NDBI and higher LST.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Fen Chen, Tim van de Voorde, Dar Roberts, Haojie Zhao, Jingbo Chen
Summary: This communication discusses the limitations and risks of a commonly used method for detecting ground materials, which relies on setting thresholds for normalized difference indices. The authors critically analyze this method and present experimental results on various spectral libraries and satellite images. They highlight the risk of commission errors and provide suggestions for reducing them.
Article
Environmental Sciences
Sajeesh Viswambharan, Indu Tarur Kumaramkandath, Javaid Ahmad Tali
Summary: This study provides detailed information on calculating soil moisture index, normalized difference moisture index, and normalized difference water index using Landsat 7 ETM+ and Landsat 8 OLI data, and examines their spatial and temporal changes in Palakkad District. The study finds a negative correlation between land surface temperature and normalized difference vegetation index, as well as a negative correlation between soil moisture index and land surface temperature. The results show significant variations in soil moisture and vegetation water content in the study area.
ENVIRONMENTAL EARTH SCIENCES
(2022)
Article
Environmental Sciences
Sadia Ismail, Muhammad Farooq Ahmed, Muhammad Zubair Abu Bakar
Summary: This study focuses on the impact of urbanization on the water quality index in Lahore city using remote sensing and geographical information systems. The results show a significant decline in groundwater quality over 17 years, with an increase in built-up area and poor water quality areas. The linear regression model indicates a positive correlation between urbanization and water quality index, and a negative correlation with vegetation areas.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Agronomy
Ewa Panek, Dariusz Gozdowski
Summary: This study analyzed the relationships between NDVI and grain yield in 20 European countries, finding strong correlations in Croatia, Czechia, Germany, Hungary, Latvia, Lithuania, Poland, and Slovakia, allowing for early yield prediction. Weak relationships were observed in France and Belgium.
Article
Plant Sciences
Weeberb J. Requia, Claudia Costa Saenger, Rejane Ennes Cicerelli, Lucijane Monteiro de Abreu, Vanessa R. N. Cruvinel
Summary: This study investigates the association between greenness and academic performance at the school-level in Brazil. The results show a positive correlation between green areas surrounding schools and math academic performance, suggesting that improving the environment around schools can promote public health.
URBAN FORESTRY & URBAN GREENING
(2022)
Article
Environmental Sciences
Jiawei Hui, Zanxu Chen, Baoying Ye, Chu Shi, Zhongke Bai
Summary: This study used remote sensing data to monitor the vegetation of the Xilin Gol grassland in arid areas and studied the degree of influence of climatic conditions and human activities, particularly mining activities, on grassland vegetation. The results showed that precipitation is an important factor affecting grassland vegetation, and human activities, especially coal mining, have caused degradation of the vegetation to some extent. Additionally, economic factors also have a significant impact on vegetation changes.
Article
Green & Sustainable Science & Technology
Subhanil Guha, Himanshu Govil
Summary: This study conducted in Raipur City of India using fifteen cloud-free Landsat datasets from 2002 to 2018 aimed to assess the trend of spatiotemporal relationship between land surface temperature (LST) and normalized difference vegetation index (NDVI). It was found that LST maintains a strong negative relationship with NDVI throughout the study area, with variations in different ranges of LST and NDVI values. The increase in heterogeneous landscape within the city boundary strongly supports the changing pattern of LST-NDVI relationship, which has shown stronger correlations in earlier times compared to recent times.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2021)
Article
Environmental Sciences
Rajman Gupta, Mani Sharma, Garima Singh, Rajendra Kr Joshi
Summary: Urban heat islands are intensifying in major cities in India due to urbanization and loss of vegetation. Mitigating this phenomenon requires a better understanding of the associated biophysical processes. Using satellite data and spatial metrics, this study examines the impact of urbanization on land surface temperature (LST) in Shimla and Dehradun, the capital cities of the Western Himalayan states. The results show an increase in built-up areas, NDBI, and LST, and a reduction in NDVI and NDWI. Temperature hotspots are mainly located in urban areas, followed by vegetation and water bodies. There is a significant correlation between LST and biophysical parameters. The study highlights the feasibility of estimating LST, NDVI, NDBI, and NDWI accurately, which can inform policy interventions.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2023)
Article
Environmental Sciences
J. M. Ramirez-Cuesta, M. Minacapilli, A. Motisi, S. Consoli, D. S. Intrigliolo, D. Vanella
Summary: The study examines how different MODIS NDVI seasonal parameters respond to land processes in Europe over the 2000-2018 period. It found that the maximum seasonal NDVI parameter best characterized most land processes. This information can be valuable for policymakers in implementing land management actions associated with sustainable development goals.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Studies
Ayman Aslam, Irfan Ahmad Rana, Saad Saleem Bhatti
Summary: The study explored the spatiotemporal dynamics of land use/land cover, land surface temperature, and local climatic zones in Islamabad. The findings revealed a significant increase in built-up areas and a decrease in vegetation cover, leading to impacts on local temperatures.
ENVIRONMENTAL IMPACT ASSESSMENT REVIEW
(2021)
Article
Forestry
Xisheng Hu, Chongmin Xu, Jin Chen, Yuying Lin, Sen Lin, Zhilong Wu, Rongzu Qiu
Summary: Urban vegetation plays a crucial role in regulating urban climate and improving the urban environment. This study proposes a synthetic vegetation quality index (VQI) to effectively and quickly assess urban vegetation quality and detects its changes over time. The results demonstrate the reliability and applicability of the VQI in evaluating urban vegetation quality and its impact on the urban thermal environment.
Article
Plant Sciences
Tiantian Chen, Qiang Wang, Yuxi Wang, Li Peng
Summary: Vegetation is crucial for the earth's surface system and its changes serve as an indicator of global climate change. This study used advanced methods to analyze the vegetation trends in China from 1982 to 2018. The results show that China experienced abrupt changes in vegetation growth in the 1990s and 2000s, with significant impacts on the entire country. Climate and human activities played important roles in driving these changes.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Lei Fan, Jean-Pierre Wigneron, Philippe Ciais, Jerome Chave, Martin Brandt, Stephen Sitch, Chao Yue, Ana Bastos, Xin Li, Yuanwei Qin, Wenping Yuan, Dmitry Schepaschenko, Liudmila Mukhortova, Xiaojun Li, Xiangzhuo Liu, Mengjia Wang, Frederic Frappart, Xiangming Xiao, Jingming Chen, Mingguo Ma, Jianguang Wen, Xiuzhi Chen, Hui Yang, Dave van Wees, Rasmus Fensholt
Summary: Siberian forests have been considered an important carbon sink, but severe droughts and fire disturbances may have affected their carbon dynamics. Limited forest inventories have led to uncertainties in the carbon balance. This study analyzed microwave observations from 2010 to 2019 and found that the carbon balance of Siberian forests was close to neutral, with a small carbon sink. Fire and drought caused significant losses of live above-ground carbon, contrasting with the greening trends in leaf area index. This highlights the vulnerability of large forest carbon stores in Siberia to climate-induced disturbances.
Article
Environmental Sciences
Wenqi Liu, Yuting Zhou, Jinwei Dong, Geli Zhang, Tong Yang, Nanshan You, K. Colton Flynn, Pradeep Wagle, Haoxuan Yang
Summary: With the increasing demand for livestock consumption, the planted area of green fodder in China has been rapidly expanding and will continue to do so. However, the climate feedback of this land cover conversion remains unclear. By using remote sensing observation and meteorological data, this study compared the land surface temperature of green fodder plantations and native grassland in the northeastern Tibetan Plateau. The results showed that the green fodder areas were cooler than the native grassland throughout the growing season, with the highest cooling effect observed in August. The study highlighted the potential cooling effects of expanding green fodder areas on native grasslands, emphasizing the need to investigate climate feedback from anthropogenic land use change.
ENVIRONMENTAL RESEARCH LETTERS
(2023)
Article
Environmental Sciences
Rui Sun, Guoyu Lan, Chuan Yang, Zhixiang Wu, Bangqian Chen, Klaus Fraedrich
Summary: This study collected soil samples from two typical tropical forests on Hainan Island, China's largest tropical island, and used a soil quality index to measure soil quality based on 21 soil properties. The results showed significant differences in soil quality among different soil types and between seasons, providing valuable information for the sustainable use of tropical forests on Hainan Island.
LAND DEGRADATION & DEVELOPMENT
(2023)
Article
Environmental Sciences
Kailong Cui, Jilin Yang, Jinwei Dong, Guosong Zhao, Yaoping Cui
Summary: This study examines the sensitivity of phenological retrievals for deciduous broadleaf forests (DBF) using different spatial resolution data and proxy indices. The results show that 30 m Landsat-Sentinel-2 data and 500 m MODIS data accurately capture DBF phenological metrics, with different indices performing better for the start and end of the growing season. The study provides guidance for accurate monitoring of DBF phenology at a broad scale.
Article
Environmental Sciences
Chang Fan, Jilin Yang, Guosong Zhao, Junhu Dai, Mengyao Zhu, Jinwei Dong, Ruoqi Liu, Geli Zhang
Summary: This study compared ground and satellite observations and found that the 30m Landsat/Sentinel-2 data was more consistent with ground observations in wetland vegetation phenology, indicating its advantage over the 500m MODIS data. The study also highlighted the complexity of wetland phenology and its role in global climate change.
Article
Biodiversity Conservation
John Y. Takekawa, Diann J. Prosser, Jeffery D. Sullivan, Shenglai Yin, Xinxin Wang, Geli Zhang, Xiangming Xiao
Summary: Wild waterbirds, particularly waterfowl, are a reservoir for avian influenza viruses, and transmission occurs at the interface between agriculture and wildlife. Environmental changes in the East Asian-Australasian Flyway, including rice paddy distribution, may affect the movements of migratory birds and disease transmission risk. Dynamic Brownian Bridge Movement Models were used to predict changes in waterfowl distribution based on rice distribution data. Results showed that small decreases in rice agriculture could lead to habitat loss for waterfowl in southeast China, while increases in rice paddies in northeast China could provide new areas for waterfowl. The study highlights the potential implications of changing waterfowl distribution on avian influenza transmission.
Article
Green & Sustainable Science & Technology
Ziqi Meng, Jinwei Dong, Erle C. Ellis, Graciela Metternicht, Yuanwei Qin, Xiao-Peng Song, Sara Lofqvist, Rachael D. Garrett, Xiaopeng Jia, Xiangming Xiao
Summary: This study uses 30-m cropland maps to show that cropland expansion in protected areas accelerated dramatically from 2000 to 2019, compared with the expansion of global croplands, threatening the aspirations of the post-2020 global biodiversity framework.
NATURE SUSTAINABILITY
(2023)
Article
Multidisciplinary Sciences
Xi Chen, Jinwei Dong, Lin Huang, Lajiao Chen, Zhichao Li, Nanshan You, Mrinal Singha, Fulu Tao
Summary: Floods occur more frequently in the context of climate change, but flood monitoring capacity has not been established well. This study characterized summer floods in the middle and lower reaches of the Yangtze River Plain in 2020 using a synergic mapping framework, considering both flood extent and intensity. It was found that a total of 4936 km(2) was flooded from July to August, with 1658, 1382, and 1896 km(2) experiencing triple, double, and single floods respectively. The study highlights the importance of rapid regional flood disaster assessment and mitigation.
Article
Agriculture, Multidisciplinary
Guosong Zhao, Jinwei Dong, Jilin Yang, Huanjiong Wang, Junhu Dai, Yan Zhou, Yaoping Cui, Quansheng Ge
Summary: The impacts of anthropogenic effects on advanced spring green-up dates (GUDs) induced by global climate change are still unclear. This study examines the differences in GUDs between agroecosystems and natural ecosystems in China and explores the potential effects of cropland expansion on vegetation spring phenology. The results show that agroecosystems have significantly later GUDs than adjacent natural ecosystems, and the delay is more distinct in regions with remarkable land reclamation. The study emphasizes the importance of understanding the role of cropland expansion in driving inter-annual change of vegetation spring phenology and the integration of realistic crop green-up timing into climate models.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2023)
Article
Agronomy
Yuanyuan Di, Nanshan You, Jinwei Dong, Xiaoyong Liao, Kaishan Song, Ping Fu
Summary: With over 80% of soybean demand dependent on imports, China has implemented various policies to improve soybean self-sufficiency. However, the effects of these policies on soybean planting areas and cropping patterns in Northeast China, the leading soybean-producing region, are unclear. By analyzing crop maps from 2017 to 2021, it was found that the soybean subsidy policy released in 2017 did not revive soybean planting areas but only stabilized them. The decline (-27.9%) in soybean planting areas during 2020-2021 was attributed to the comparative benefits of maize cultivation. The routine maize-soybean rotation system was found to dominate cropping patterns instead of the subsidy policy.
EUROPEAN JOURNAL OF AGRONOMY
(2023)
Article
Environmental Sciences
Xin Li, Xincheng Wang, Yuanfeng Gao, Jiuhao Wu, Renxi Cheng, Donghao Ren, Qing Bao, Ting Yun, Zhixiang Wu, Guishui Xie, Bangqian Chen
Summary: Rubber plantations play a vital role in regional carbon balance, but accurate large-scale biomass estimation remains challenging due to signal saturation. In this study, we used Hainan Island as a case study and integrated extensive ground surveys, maps of stand age and canopy height, remote sensing indicators, and geographical and climate indicators to determine the optimal method for estimating rubber plantation biomass. The results showed that the biomass distribution pattern is closely associated with the establishment year of the rubber plantations.
Article
Green & Sustainable Science & Technology
Can Cao, Rui Sun, Zhixiang Wu, Bangqian Chen, Chuan Yang, Qian Li, Klaus Fraedrich
Summary: This study analyzes the streamflow response to climate and land-use change in the Nandu River Basin using hydrological models. The results show that climate change has a greater impact on streamflow change, with precipitation and temperature being the most important climate variables. Land-use change affects hydrological processes by increasing evapotranspiration and decreasing surface and subsurface runoff.
Article
Green & Sustainable Science & Technology
Bo Song, Zhixiang Wu, Lu Dong, Chuan Yang, Siqi Yang
Summary: Stem CO2 efflux is important for the carbon balance in forest ecosystems, but its contribution to ecosystem respiration for rubber plantations is not well understood. This study monitored the rate of stem CO2 efflux at different heights in a rubber plantation and found significant seasonal differences with a minimum value in April and a maximum in September. Both area-based and volume-based methods were used to estimate stem respiration, and the results showed reasonable extrapolation proxies. The study also found that leaf area index and soil volumetric moisture content were the major factors influencing the ratio of stem respiration to ecosystem respiration in the rubber plantation.
