[1]JIANG Ping,PAN Xinmin,ZENG Xueying.Temporal and Spatial Variation of Temperature and Precipitation in Each Agricultural Sub-region of China[J].Research of Soil and Water Conservation,2020,27(04):270-278.
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Temporal and Spatial Variation of Temperature and Precipitation in Each Agricultural Sub-region of China
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 04
Page number:
270-278
Column:
目次
Public date:
2020-06-20
- Title:
- Temporal and Spatial Variation of Temperature and Precipitation in Each Agricultural Sub-region of China
- CLC:
- P423; P426
- DOI:
- -
- Abstract:
- In order to explain the regularity of climate change and agricultural climate resources, based on the monthly average temperature and cumulative precipitation data of 613 weather stations in the mainland of China from 1961 to 2017, the spatial and temporal variation characteristics of annual mean temperature and precipitation in each agriculture sub-region were studied by using trend analysis, Mann-Kendall test and linear fitting method. The results showed that, the annual mean temperature over the country showed an increasing trend in the period 1961—2017, with the increment averaged 0.249℃/10 a, an abrupt change air temperature occurred in 1996, and the warming trend increased from southeast to northwest, while the highest appeared in north; the abrupt change of precipitation with the pattern shifting from decrease to increase occurred in 2015, while the linear trend of annual precipitation did not change obviously; for each agricultural sub-region, the temperature presented an obvious increasing tendency with the amplitude in northern and western greater than southern and eastern, respectively, and the most prominent one is the Tibetan Plateau; precipitation showed varying degrees of increase in each agricultural sub-region, except the Loess Plateau, and it was getting wet for the whole study area in the period from 2011 to 2017; the spatial and temporal distribution patterns of temperature and precipitation in four seasons are significantly different, agricultural area of the Tibet Plateau turned warm and dry in spring and winter, arid region of north china became warm and wet in summer, south-central and northeast became dry in summer and autumn, while southeastern existed warm-dry trend throughout the year.
- References:
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Last Update:
2020-07-09