Article
Multidisciplinary Sciences
Lei Zhang, Lin Yang, Constantin M. Zohner, Thomas W. Crowther, Manchun Li, Feixue Shen, Mao Guo, Jun Qin, Ling Yao, Chenghu Zhou
Summary: Based on satellite observations from 2001 to 2018, this study examines the direct and indirect impacts of urbanization on vegetation growth in 672 cities worldwide. It finds a widespread positive indirect effect of urbanization on vegetation growth, which has been increasing over time. These indirect effects are influenced by urban development intensity, population density, and background climate, with higher positive effects in cities with cold and arid environments. The study also suggests that the vegetation responses to urbanization are modulated by a cities' developmental status.
Article
Geosciences, Multidisciplinary
Xiaolu Li, Toby Ault, Colin P. Evans, Flavio Lehner, Carlos M. Carrillo, Alison Donnelly, Theresa Crimmins, Amanda S. Gallinat, Mark D. Schwartz
Summary: Plant phenology regulates the carbon cycle and land-atmosphere coupling. Thermal and leaf area index (LAI) based indicators are used to characterize spring onset in CMIP6 models. Most models agree that spring has advanced in recent decades and will continue to arrive earlier with future warming. Thermal-based indicators estimate spring advances of -0.7 to -2.4 days/decade, while LAI-based indicators estimate -0.4 to -1 days/decade. Reconciling these discrepancies is critical for understanding future changes in spring onset.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Environmental Sciences
Lvlv Wang, Dunxian She, Jun Xia, Lin Meng, Lingcheng Li
Summary: This study investigated the difference in land surface phenology (LSP) between restored and native vegetation on the Loess Plateau in China, and how LSP responds to climate. Restored vegetation showed a longer growing season and a delay in greenup and senescence compared to native vegetation. Temperature primarily influenced greenup and maturity, while precipitation mainly controlled senescence and dormancy.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Forestry
A. Correa-Diaz, M. E. Romero-Sanchez, J. Villanueva-Diaz
Summary: In the past 20 years, a significant greening trend was observed in high-elevation forests in central Mexico, with NDVI trends varying along elevation gradients and being most pronounced at the lowest elevations. The trends were positively correlated with minimum temperature and soil moisture, and negatively correlated with maximum temperature. Phenological metrics showed the start and end of the growing season, as well as the season length, differed from previous studies, with no clear extension of the growing season despite temperature increases.
FOREST ECOLOGY AND MANAGEMENT
(2021)
Article
Environmental Sciences
Minkyu Moon, Bijan Seyednasrollah, Andrew D. Richardson, Mark A. Friedl
Summary: The timing of leaf emergence in temperate and boreal forests is changing, with photoperiod control dominant in warmer climates and thermal control predominant in colder climates. Remote sensing-based models accurately predict variation in greenup timing and suggest that as the climate warms, leaf emergence will move earlier, particularly in colder regions below 10 degrees C mean annual temperature.
REMOTE SENSING OF ENVIRONMENT
(2021)
Article
Green & Sustainable Science & Technology
Baocheng Wei, Jing Wei, Xu Jia, Zhigang Ye, Shan Yu, Shan Yin
Summary: Vegetation phenology is a sensitive indicator for understanding terrestrial ecosystem status, and this study analyzed the variation of land surface phenology in the agricultural pastoral ecotone of northern China. The results showed changes in the timing of the start and end of the growing season, as well as consistent trends with the Yellow River and Haihe River Basins.
Article
Environmental Sciences
Rongrong Zhang, Junyu Qi, Song Leng, Qianfeng Wang
Summary: This study investigates the long-term trends of phenological parameters of different vegetation types in China north of 30 degrees N and their responses to preseason temperature and precipitation. The results indicate that preseason temperature has a strong controlling effect on vegetation phenology. Crop phenology is greatly influenced by human activities, while preseason precipitation has a stronger impact on the end date of the growing season.
Article
Environmental Sciences
Liming Ye, Johan De Grave, Eric Van Ranst, Lijun Xu
Summary: In recent years, satellite remote sensing has played an increasingly important role in monitoring global environmental changes. However, the calibration of satellite land surface phenology (LSP) observations using standardized procedures has received less attention. In this study, a new approach using a climotransfer function (CTF) based on a polynomial regression was proposed to calibrate satellite LSP products. A case study of the cropland growing season in Northeast China (NEC) from 2001 to 2010 was conducted to illustrate the model development and evaluation process. The results showed that calibration was necessary to accurately characterize the spatiotemporal patterns of the cropland growing season.
Article
Multidisciplinary Sciences
Xinyu Li, Shushi Peng, Yi Xi, R. Iestyn Woolway, Gang Liu
Summary: The excess lake surface warming during ice-off and ice-on month due to earlier ice loss and later ice formation across the Northern Hemisphere has been shown. The contribution of long-term variations in lake ice seasonality to surface water temperature trends has been investigated, and an 8-day advancement in the average timing of ice break-up has been found to play a predominant role in the excess warming. The projected future alterations in lake ice phenology may further amplify the excess lake warming.
NATURE COMMUNICATIONS
(2022)
Article
Biodiversity Conservation
Cong Yin, Yaping Yang, Fei Yang, Xiaona Chen, Ying Xin, Peixian Luo
Summary: Climate factors have a significant impact on spring phenology, with temperature being the dominant factor in the Qinling Mountains. Photoperiod plays a significant role in grassland areas.
ECOLOGICAL INDICATORS
(2021)
Article
Environmental Sciences
Monika A. Tomaszewska, Geoffrey M. Henebry
Summary: The study used higher spatial resolution land surface phenology modeling results to characterize patterns of phenometrics in highland pastures in Kyrgyz Republic. It found that terrain features and seasonal weather can modulate the influence of village proximity on phenology, and that aspect can attenuate negative impacts of dry conditions on seasonal peak values. The study also discussed limitations in previous and recent studies of pasture degradation.
Article
Environmental Sciences
Yijing Zhao, Xiaoli Wang, Yu Guo, Xiyong Hou, Lijie Dong
Summary: Crop phenology, especially winter wheat, is influenced by climate variables such as temperature and precipitation. In Shandong Province, China, the phenological changes of winter wheat show a spatial pattern and a trend of delay and advancement in some regions.
Article
Forestry
Tugce Senel, Oguzhan Kanmaz, Filiz Bektas Balcik, Meral Avci, H. Nuzhet Dalfes
Summary: Understanding how natural ecosystems respond to climate change is a key focus in ecological research. Plant phenology, particularly land surface phenology, is considered a valuable bioindicator to study these responses. By analyzing satellite data, this study investigated the phenological shifts in Fagus orientalis forests in Turkey over a period of 19 years.
Article
Environmental Sciences
Jiang Liu, Daniel Fiifi Tawia Hagan, Yi Liu
Summary: This study investigates the long-term changes in land surface temperature (LST) using satellite observations and reanalysis data from 2003 to 2017. The results show a global uptrend in LST during this period, with varying spatial patterns. Precipitation, incoming surface solar radiation, and incoming surface longwave radiation were identified as major drivers of inter-annual LST variations in different regions.
Article
Environmental Sciences
Guanyu Hou, Xiuliang Yuan, Shixin Wu, Xiaofei Ma, Zihui Zhang, Xingwen Cao, Conghui Xie, Qing Ling, Weiyi Long, Geping Luo
Summary: Lake ice phenology in Central Asia was studied using MODIS daily LST products from 2002 to 2020. The results showed regional differences in the trends of lake ice phenology, with lakes near Kunlun Mountains experiencing delayed freeze-up and lakes in southwestern Central Asia showing advancing freeze-up and breakup. Correlations with local and climatic factors indicated that heat was the main driver of the breakup process, while precipitation influenced freezing time and wind speed affected the time of complete ice freezing.