| 摘要: |
| 在引入近似熵并给出人类活动影响程度E的基础上,对黄河径流序列的复杂性进行了分析。结果认为,对黄河上游实测径流变化的研究应以洪水的变化为主,对天然径流变化的分析应以干旱(断流)为重点;而对黄河下游实测径流变化及天然径流的研究均应以干旱(断流)为主。 |
| 关键词: 近似熵 径流序列 复杂性研究 人类活动影响程度 |
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| 基金项目:国家自然科学基金项目(50079021)；国家“973”重点基础研究发展规划项目(G1999043608) |
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| Study on runoff series complexity based on approximate entropy |
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| Abstract: |
| Based on the introduction of approximate entropy and human activity effect E,runoff series complexity of the Yellow River was analyzed.The results show that flood variety should be the main aspect in the study of measured runoff variety of the Yellow River upstream,drought (or water interception) study should be stressed in the study of natural runoff variety of measured and natural runoff variety the Yellow River downstream. |
| Key words: approximate entropy runoff series complexity study effect extent of human activity |
