[1]HONG Meiling,HE Shihua.Spatial and Temporal Change of Rainfall in Nujiang Basin in Recent 50 Years[J].Research of Soil and Water Conservation,2019,26(03):248-252.
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Spatial and Temporal Change of Rainfall in Nujiang Basin in Recent 50 Years
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
26
Number of periods:
2019 03
Page number:
248-252
Column:
Public date:
2019-04-12
- Title:
- Spatial and Temporal Change of Rainfall in Nujiang Basin in Recent 50 Years
- CLC:
- TV21
- DOI:
- -
- Abstract:
- In order to investigate the spatiotemporal changes of rainfall in the Nujiang River Basin, based on the 50-year rainfall data of 6 stations of 13 rainfall stations in the Nujiang River basin, the interannual rainfall characteristics, intra-annual intensity characteristics, and extreme rainfall events were analyzed using inverse distance weight interpolation, Kendall non-parametric test, and linear regression analysis. The results showed that the rainfall in the upper reaches (northwest) of the Nujinag River Basin was small, and the overall trend of rainfall concentration decreased during the years; rainfall was rich in the middle and lower reaches (central) of the basin, and the intensity of rainfall increased during the years; the rainfall in the lower reaches (southeast) of the river basin was the most abundant, and the trend of rainfall concentration was stable; extreme rainfall events in the three areas in the basin all showed the rising trend. In summary, the attentions should be paid to water conservation in the Tibet region, to the prevention of soil erosion and the comprehensive management of water and soil in the Tibet-Yunnan border and the Gongshan region and to flood control and mudslide control in the rest basin of Yunnan.
- References:
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Last Update:
1900-01-01