[1]LI Lan,DING Wenrong.Runoff Variation and Its Response to Climate Change in the Upstream of Longchuanjiang River[J].Research of Soil and Water Conservation,2016,23(04):83-88,93.
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Runoff Variation and Its Response to Climate Change in the Upstream of Longchuanjiang River
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
23
Number of periods:
2016 04
Page number:
83-88,93
Column:
Public date:
2016-04-28
- Title:
- Runoff Variation and Its Response to Climate Change in the Upstream of Longchuanjiang River
- Keywords:
- upstream of Longchuangjiang River; runoff; climatic change; response
- CLC:
- P339
- DOI:
- -
- Abstract:
- Based on the hydrologic data of Xiaohekou, the upstream of Longchuanjiang River, and the meteorological data of Chuxiong from 1970 to 2012, we used the methods of accumulative anomalies, Mann-Kendall and correlation coefficient to analyze the variation of inner-annual, inter-annual and inter-decadal for the runoff of the upstream of Longchuanjiang River, precipitation, the runoff and its response to climatic change. The results indicated that:(1) the annual runoff distributed unevenly, and it gradually become even, and annual runoff showed a wavelike decrease, but it wasn’t obvious, and runoff volume was less than normal years in 1970s, 1980s and the the period from 2010 ot 2012. The runoff volume in 1990s and 2000s was more than normal years; (2) temperature and annual runoff had showed a wavelike increase, but the latter was indistinctive; (3) annual precipitation effects on annual runoff was obvious, but the annual average temperature had less effect on runoff, precipitation of spring and autumn had larger effect on runoff, influences of precipitation, and temperature on runoff were obvious in summer, but were just opposite in the winter. In summary, responses of runoff in different seasons to different climate factors are different.
- References:
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