Spatiotemporal variability of precipitation during 1961–2014 across the Mongolian Plateau

Qin, Fuying; Jia, Gensuo; Yang, Jie; Na, Yin-tai; Hou, Meiting; Narenmandula,

doi:10.1007/s11629-018-4837-1

Cited by 18 publications

(12 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In winter, the overall performance of the Mongolian Plateau tended to be humid. The precipitation in the Mongolian Plateau mainly occurred in summer and fall, while the precipitation in winter was very little, below 5% of the annual precipitation [52]. According to the line chart of the mean precipitation in winter (December, January, and February of the next year) of all the stations in the Mongolian Plateau from 1980 to 2015, it could be seen that the mean precipitation in the winter after 1998 increased by approximately 0.7 mm compared with the previous mean precipitation ( Figure 10).…”

Section: Drought Variations In Different Climatic Regions At the Seasmentioning

confidence: 99%

Analysis for Spatio-Temporal Variation Characteristics of Droughts in Different Climatic Regions of the Mongolian Plateau Based on SPEI

et al. 2019

View full text Add to dashboard Cite

Continuous climate warming in the last few decades has led to global climate anomalies, resulting in frequent drought events in arid/semiarid regions with fragile and sensitive ecological environment. The Mongolian Plateau (MP) is located at the mid-latitude arid/semiarid climate region, which is deemed as the most sensitive region in response to global climate change. In order to understand the spatiotemporal characteristics of droughts in Mongolian Plateau under changing climate, we divided the study area into three climatic regions via Köppen climate classification. Then, the seasonal and annual drought trends were analyzed by standardized precipitation evaporation index (SPEI), which is a function of monthly mean temperatures, highest temperatures, lowest temperatures and precipitations, collected from the 184 meteorological stations from 1980 to 2015. Mann-Kendall (MK) test was employed to detect if there is an abrupt change of annual drought, while the empirical orthogonal function method (EOF) was adopted to investigate the spatiotemporal characteristics of droughts across the Mongolian Plateau. Results from MK test illustrated that the SPEI-12 exhibited statistically significant downward trends (a < 0.05) for all three climatic regions of the Mongolian Plateau. EOF spatial analysis indicated that Region III experienced the most severe drought from 1980 to 2015. During the 35 years period, an abrupt change of drought was detected in 1999. Before year 1999, the climate was relatively humid. However, the entire region became more arid after year 1999, reflected by remarkably increased frequency and intensity of drought. SPEI-3 revealed the trend of drought at seasonal scale. We found that drought became more severe in spring, summer, and fall seasons for the entire MP. However, winter became more humid. Different climate regions exhibited quite different drought seasonality: Region I experienced a severe arid trend in summer and fall. For Region II and III, summer became more arid. All three regions became more humid in winter season, especially for Region I, with the Sen's slope of 0.0241/a.

show abstract

Section: Drought Variations In Different Climatic Regions At the Seasmentioning

confidence: 99%

Analysis for Spatio-Temporal Variation Characteristics of Droughts in Different Climatic Regions of the Mongolian Plateau Based on SPEI

et al. 2019

View full text Add to dashboard Cite

show abstract

“…More than 60% of the annual precipitation falls from July to September; this is the peak period for forage growth. The average temperature of the coldest month (January) is -21 • C, while that of the hottest month (July) is 20 • C. The annual mean evaporation is 1505 ± 45.4 mm ( [1]; Table 1). The constructive (edificatory) species in the study area were Stipa grandis and Leymus chinensis, while the dominant plant species included Carex duriuscula, Stipa krylovii, Artemisia frigida, Chenopodium acuminatum, Cleistogenes squarrosa, and Allium polyrhizum.…”

Section: Study Areamentioning

confidence: 99%

“…The Mongolian Plateau, which has an area of approximately 2.6 million km 2 [1], is located in the mid-latitudes of the Northern hemisphere. This plateau is divided between Mongolia and the Inner Mongolia Autonomous Region (China).…”

Section: Introductionmentioning

confidence: 99%

Effects of Different Grazing Systems on Aboveground Biomass and Plant Species Dominance in Typical Chinese and Mongolian Steppes

Hoshino

et al. 2018

Sustainability

View full text Add to dashboard Cite

This study investigated the effects of different grazing systems on plant communities, and examined the causes of Mongolian grassland desertification. The typical steppes near the Chinese-Mongolian border were studied using quadrat sampling and remote sensing methods. Aboveground biomass in the steppe areas differed significantly among the three grazing systems (p < 0.05): Biomass in the grazing-prohibited areas (455.9 g) was greater than that in the rotational-grazing areas (268.4 g) and the continuous grazing areas (122.2 g). Aboveground biomass was well correlated with the Soil Adjusted Vegetation Index (SAVI; y = 5600x 2 + 260x + 110; R 2 = 0.67; p < 0.05). The relative mean deviation between the aboveground biomass was calculated using this regression and the measured biomass was 29.1%. The Soil Adjusted Vegetation Index (SAVI) values for nomadic-grazing areas were greater than those for continuous-grazing areas in 1989, 2005, 2011, and 2016, and were significantly greater in 2011 and 2016. The SAVI values for the continuous-grazing areas were slightly, but not significantly greater, than those for the nomadic-grazing areas in 1993. Plant species that dominated in moderately degraded areas were most dominant in nomadic-grazing areas, followed by continuous-grazing areas and grazing-prohibited areas. Plant species that dominated in lightly and heavily degraded areas were most dominant in continuous-grazing areas, followed by nomadic-grazing areas and grazing-prohibited areas. Generally, continuous grazing caused more serious grassland degradation than did nomadic grazing, and nomadic-grazing areas tolerated more intense grazing than did continuous-grazing areas.

show abstract

“…However, the trend in annual precipitation varied with regions [70]. For instance, an insignificant increasing trend in annual precipitation was found in China from 1980 to 2012, while a decreasing trend from 1961 to 2014 occurred across the Mongolian plateau [70,71]. Liu et al (2017) also showed that average rainfall, total duration and rainfall frequency for isolated rainstorm events showed an increasing trend from 1951 to 2012 in the Huai River Basin, China [72].…”

Section: Comparisons With Previous Studiesmentioning

confidence: 98%

“…Regarding the spatiotemporal changes of rainfall, literature has also shown that extreme precipitation events have an increasing trend in most regions over the world [15,69]. However, the trend in annual precipitation varied with regions [70]. For instance, an insignificant increasing trend in annual precipitation was found in China from 1980 to 2012, while a decreasing trend from 1961 to 2014 occurred across the Mongolian plateau [70,71].…”

Section: Comparisons With Previous Studiesmentioning

confidence: 99%

Individual Rainfall Change Based on Observed Hourly Precipitation Records on the Chinese Loess Plateau from 1983 to 2012

Ding

Wang

Jin

et al. 2020

Water

View full text Add to dashboard Cite

The magnitude and spatiotemporal distribution of precipitation are the main drivers of hydrologic and agricultural processes in soil moisture, runoff generation, soil erosion, vegetation growth and agriculture activities on the Loess Plateau (LP). This study detects the spatiotemporal variations of individual rainfall events during a rainy season (RS) from May to September based on the hourly precipitation data measured at 87 stations on the LP from 1983 to 2012. The incidence and contribution rates were calculated for all classes of rainfall duration and intensity to identify the dominant contribution to the rainfall amount and frequency variations. The trend rates of regional mean annual total rainfall amount (ATR) and annual mean rainfall intensity (ARI) were 0.43 mm/year and 0.002 mm/h/year in the RS for 1983–2012, respectively. However, the regional mean annual total rainfall frequency (ARF) and rainfall events (ATE) were −0.27 h/year and −0.11 times/year, respectively. In terms of spatial patterns, an increase in ATR appeared in most areas except for the southwest, while the ARI increased throughout the study region, with particularly higher values in the northwest and southeast. Areas of decreasing ARF occurred mainly in the northwest and central south of the LP, while ATE was found in most areas except for the northeast. Short-duration (≤6 h) and light rainfall events occurred mostly on the LP, accounting for 69.89% and 72.48% of total rainfall events, respectively. Long-duration (≥7 h) and moderate rainfall events contributed to the total rainfall amount by 70.64% and 66.73% of the total rainfall amount, respectively. Rainfall frequency contributed the most to the variations of rainfall amount for light and moderate rainfall events, while rainfall intensity played an important role in heavy rainfall and rainstorms. The variation in rainfall frequency for moderate rainfall, heavy rainfall, and rainstorms is mainly affected by rainfall duration, while rainfall event was identified as a critical factor for light rainfall. The characteristics in rainfall variations on the Loess Plateau revealed in this study can provide useful information for sustainable water resources management and plans.

show abstract

Spatiotemporal variability of precipitation during 1961–2014 across the Mongolian Plateau

Cited by 18 publications

References 31 publications

Analysis for Spatio-Temporal Variation Characteristics of Droughts in Different Climatic Regions of the Mongolian Plateau Based on SPEI

Analysis for Spatio-Temporal Variation Characteristics of Droughts in Different Climatic Regions of the Mongolian Plateau Based on SPEI

Effects of Different Grazing Systems on Aboveground Biomass and Plant Species Dominance in Typical Chinese and Mongolian Steppes

Individual Rainfall Change Based on Observed Hourly Precipitation Records on the Chinese Loess Plateau from 1983 to 2012

Contact Info

Product

Resources

About