Journal
CATENA
Volume 136, Issue -, Pages 182-188Publisher
ELSEVIER
DOI: 10.1016/j.catena.2015.02.013
Keywords
Climate variability; Human activities; Streamflow; Luan River basin
Funding
- National Natural Science Foundation of China [41430747]
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Climate variability and human activities have received significant attention in recent years. We assessed streamflow record in the Luan River basin in the period 1956-2000 in response to climate variation and anthropogenic factors. Analyses of annual and seasonal series showed that the streamflow had a significant decreasing trend, with an abrupt change point in 1979. Human activity had more effects on streamflow changes than climate, for the change of annual streamflow, climate variability contributed 40.89%, and human activities contributed 59.11%; for the change of seasonal streamflow, climate variability contributed 43.53% (wet season) and 7.15% (dry season), and human activities contributed 56.47% (wet season) and 92.85% (dry season). In effects of human activity, reservoir regulation had a larger proportion than land-use change, it contributed 38.86% in the changes of annual streamflow, while land-use change contributed only 20.26%; and for the change of seasonal streamflow, reservoir regulation contributed 39.48% (wet season) and 52.14% (dry season), while land-use change contributed only 16.99% (wet season) and 40.71% (dry season). (C) 2015 Elsevier B.V. All rights reserved.
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