Leaf onset in the northern hemisphere triggered by daytime temperature
Shilong Piao,Jianguang Tan,Anping Chen,Yongshuo H. Fu,Philippe Ciais,Qiang Liu,Ivan A. Janssens,Sara Vicca,Zhenzhong Zeng,Su-Jong Jeong,Yue Li,Ranga B. Myneni,Shushi Peng,Miaogen Shen,Josep Peñuelas +14 more
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TLDR
This work shows that the interannual anomalies of LUD during 1982–2011 are triggered by daytime (Tmax) more than by nighttime temperature (Tmin), and suggests a new conceptual framework of leaf onset using daytime temperature to improve the performance of phenology modules in current Earth system models.Abstract:
Recent warming significantly advanced leaf onset in the northern hemisphere. This signal cannot be accurately reproduced by current models parameterized by daily mean temperature (Tmean). Here using in situ observations of leaf unfolding dates (LUDs) in Europe and the United States, we show that the interannual anomalies of LUD during 1982–2011 are triggered by daytime (Tmax) more than by nighttime temperature (Tmin). Furthermore, an increase of 1 Ci nTmax would advance LUD by 4.7 days in Europe and 4.3 days in the United States, more than the conventional temperature sensitivity estimated from Tmean. The triggering role of Tmax, rather than the Tmin or Tmean variable, is also supported by analysis of the large-scale patterns of satellite-derived vegetation green-up in spring in the northern hemisphere (430N). Our results suggest a new conceptual framework of leaf onset using daytime temperature to improve the performance of phenology modules in current Earth systemread more
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Winter warming offsets one half of the spring warming effects on leaf unfolding
TL;DR: In this article , the authors used 27,071 time series of leaf-out dates for 16 tree species in Europe to construct a phenological model based on the linear or exponential function between the chilling accumulation (CA) and forcing requirements (FR) of leafout.
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Air or soil temperature matters the responses of alpine plants in biomass accumulation to climate warming.
Shuairan Li,Shikui Dong,Yongshuo H. Fu,Bingrong Zhou,Shiliang Liu,Hao-jie Shen,Yudan Xu,Xiaoxia Gao,Jiannan Xiao,Shengnan Wu,Fu Li +10 more
TL;DR: In this article , the authors used long-term data (from 1997 to 2017) for four plants, Stipa purpurea, Artemisia scoparia, Kobresia humilis and Astragalus laxmannii in the alpine meadow to examine the relationships among multiple climate factors, vegetative growth, reproductive growth, intrinsic growth rate and biomass.
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A Remote Sensing-Based Analysis of the Impact of Syrian Crisis on Agricultural Land Abandonment in Yarmouk River Basin
TL;DR: In this article , the authors implemented a remote sensing-based approach for monitoring abandoned agricultural land in the Yarmouk River Basin (YRB) in Southern Syria and Northern Jordan during the Syrian crisis.
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Vegetation dynamics influenced by climate change and human activities in the Hanjiang River Basin, central China
TL;DR: Zhang et al. as discussed by the authors investigated the impacts of climate change and human activities on vegetation growth in the Hanjiang River Basin using an improved residual trend method that considers both lag effect and nonlinear response.
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Global hourly, 5 km, all-sky land surface temperature data from 2011 to 2021 based on integrating geostationary and polar-orbiting satellite data
TL;DR: Jia et al. as mentioned in this paper proposed a global hourly, 5'km, all-sky land surface temperature (GHA-LST) dataset from 2011 to 2021, which was generated using TIR LST products from geostationary and polar-orbiting satellites.
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