Rainfall seasonality changes and its possible teleconnections with global climate events in China

Deng, Shulin; Yang, Ning; Li, Manchun; Cheng, Liang; Chen, Zhenjie; Chen, Yanming; Tan, Cheng; Liu, Xiaoqiang

doi:10.1007/s00382-019-04722-3

Cited by 32 publications

(24 citation statements)

References 44 publications

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“…Some nonuniform variations in PCD and PCP were examined. The PCD variations in this study, increase in the southeast and the decrease in the northeast, are consistent with results of Zhang et al (2019) and Deng et al (2019), who used Precipitation Concentration Index and Drought Severity Index to represent annual distribution feature, respectively. PCD in Regions V and VI showed increasing trends, closely related to precipitation variation in southern China, which significantly decreases in spring and autumn and significantly increases in summer (Wang et al, 2006).…”

Section: Variations In Pcd and Pcpsupporting

confidence: 90%

“…(2019) and Deng et al . (2019), who used Precipitation Concentration Index and Drought Severity Index to represent annual distribution feature, respectively. PCD in Regions V and VI showed increasing trends, closely related to precipitation variation in southern China, which significantly decreases in spring and autumn and significantly increases in summer (Wang et al ., 2006).…”

Section: Discussionmentioning

confidence: 99%

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Nonuniform variations of precipitation and temperature across China over the period 1960–2015

Zhao

Gao

2020

Intl Journal of Climatology

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Warm season rainfall" is an important feature of China's climate, dominated by the East Asian Monsoon. In the context of climate change, this seasonal connection between precipitation and temperature may be altered. However, few studies have investigated the nonuniform variations in precipitation and temperature. This study examines nonuniform variations between precipitation and temperature in China, based on four indicators: precipitation concentration degree (PCD), precipitation concentration period (PCP), temperature concentration degree (TCD) and temperature concentration period (TCP). The results suggest that PCD and TCD experienced decreasing trends during the period from 1960 to 2015, respectively. Spatially, PCD and TCD exhibited asymmetrical change, with half of all stations in the humid subtropical region showing increasing trends in PCD and decreasing trends in TCD. Meanwhile, PCP and TCP exhibited decreasing trends, respectively. Increasing trends in PCP and decreasing trends in TCP, were found in 27% of all stations, mainly in the eastern humid subtropical region, whereas 20% showed decreasing trends in PCP and increasing trends in TCP, mostly across the southern humid subtropical, northern temperate humid/semi-humid and temperate semi-arid regions. In general, precipitation and temperature showed a nonuniform variation, indicating that annual feature of precipitation and temperature are changing.

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Section: Variations In Pcd and Pcpsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Nonuniform variations of precipitation and temperature across China over the period 1960–2015

Zhao

Gao

2020

Intl Journal of Climatology

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“…The atmospheric-ocean interactions can help to find mechanisms that affect the distribution and magnitude of precipitation in a region [5]. Several researchers have found a relationship between large-scale circulation drivers and temporary climate variations [7][8][9][10][11][12][13][14][15][16][17][18][19][20]. Among all, the El Niño-Southern Oscillation (ENSO), Pacific Decadal Oscillation (PDO), and North Atlantic Oscillation (NAO) are distinguished as the most essential phenomena due to its considerable impacts on hydro-climatic systems.…”

Section: Introductionmentioning

confidence: 99%

Spatial Analysis of Seasonal Precipitation over Iran: Co-Variation with Climate Indices

Dehghani

Salehi

Mosavi

et al. 2020

IJGI

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Temporary changes in precipitation may lead to sustained and severe drought or massive floods in different parts of the world. Knowing variation in precipitation can effectively help the water resources decision-makers in water resources management. Large-scale circulation drivers have a considerable impact on precipitation in different parts of the world. In this research, the impact of El Niño-Southern Oscillation (ENSO), Pacific Decadal Oscillation (PDO), and North Atlantic Oscillation (NAO) on seasonal precipitation over Iran was investigated. For this purpose, 103 synoptic stations with at least 30 years of data were utilized. The Spearman correlation coefficient between the indices in the previous 12 months with seasonal precipitation was calculated, and the meaningful correlations were extracted. Then the month in which each of these indices has the highest correlation with seasonal precipitation was determined. Finally, the overall amount of increase or decrease in seasonal precipitation due to each of these indices was calculated. Results indicate the Southern Oscillation Index (SOI), NAO, and PDO have the most impact on seasonal precipitation, respectively. Also, these indices have the highest impact on the precipitation in winter, autumn, spring, and summer, respectively. SOI has a diverse impact on winter precipitation compared to the PDO and NAO, while in the other seasons, each index has its special impact on seasonal precipitation. Generally, all indices in different phases may decrease the seasonal precipitation up to 100%. However, the seasonal precipitation may increase more than 100% in different seasons due to the impact of these indices. The results of this study can be used effectively in water resources management and especially in dam operation.

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“…More generally, our finding in 2018, where the total amount of precipitation was near normal but had a highly skewed distribution across the growing season (i.e., little precipitation in June), highlights the importance of intra‐annual precipitation variation for modulating plant responses to other environmental changes. Climate change not only involves increases in the frequency and intensity of extreme precipitation events, but also changes in the seasonal distribution of precipitation events, such as the projected increases in precipitation seasonality in China (Deng et al, 2019). It has been reported that annual and seasonal changes in precipitation can alter the effects of warming on ecosystem carbon exchange (Xia et al, 2009) and N and phosphorus cycling (Ren et al, 2018) in temperate grasslands.…”

Section: Discussionmentioning

confidence: 99%

Ethylene‐regulated leaf lifespan explains divergent responses of plant productivity to warming among three hydrologically different growing seasons

Ren

Han

et al. 2021

Global Change Biology

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Leaf senescence is known to be regulated by the plant hormone ethylene, but how leaf lifespan responds to global environmental change and links to ecosystem‐level responses remains largely unexplored. Here we investigated the effects of climate warming and nitrogen addition on plant functional traits, plant hormone ethylene and net primary production in a 13‐year field experiment in a desert steppe. Across the last 3 years of the experiment (2016–2018), plant productivity increased under warming only in 2016, when there was above normal precipitation, but consistently increased with nitrogen addition. Warming enhanced net photosynthesis, leaf nitrogen and ethylene production and reduced leaf lifespan in 2016 (a wet year), but not in 2017 (a drought year); the effect of warming in 2018 (a year with normal precipitation) was opposite to 2016, likely due to the below‐normal precipitation in the mid‐growing season in 2018. Nitrogen addition led to increases in leaf nitrogen, ethylene production and net photosynthesis, and declines in leaf lifespan in 2016 and 2018, but not in 2017. The ethylene‐regulated lifespan was further evidenced by the addition of CoCl2 (an ethylene biosynthesis inhibitor) that reduced ethylene production and prolonged lifespan. Structural equation modeling showed that leaf lifespan had a negative effect on plant productivity, both directly and indirectly via its negative effect on net photosynthesis, across all 3 years. Our results demonstrate the divergent responses of leaf lifespan and, in turn, plant productivity to warming under inter‐annual and intra‐annual precipitation variation, thus linking plant hormone production, functional traits and ecosystem functioning in the face of global environmental change.

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Rainfall seasonality changes and its possible teleconnections with global climate events in China

Cited by 32 publications

References 44 publications

Nonuniform variations of precipitation and temperature across China over the period 1960–2015

Nonuniform variations of precipitation and temperature across China over the period 1960–2015

Spatial Analysis of Seasonal Precipitation over Iran: Co-Variation with Climate Indices

Ethylene‐regulated leaf lifespan explains divergent responses of plant productivity to warming among three hydrologically different growing seasons

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