渭河流域气候变化与人类活动对径流的影响
文献类型：期刊论文
| 作者 | 毕彩霞 ; 穆兴民 ; 赵广举 ; 白桦 |
| 刊名 | 中国水土保持科学
 |
| 出版日期 | 2013 |
| 卷号 | 11期号:02页码:33-06 |
| 关键词 | 降水 precipitation 潜在蒸散发 potential evapotranspiration 径流 streamflow 气候变化 climate change 人类活动 human activity 渭河流域 |
| 其他题名 | Effects of climate change and human activity on streamflow |
| 中文摘要 | 以黄河最大的一级支流渭河为研究对象,根据渭河流域华县水文站1958—2011年径流资料,采用Mann—Kendall趋势检验、Pettitt非参数统计和双累积曲线法分析径流序列的变化趋势和突变点,同时采用水量平衡法定量分析气候变化和人类活动对径流量的影响。结果表明:1)华县水文站径流量呈显著下降趋势(标准正态统计变量<-2.23),年均递减系数为0.86 mm/a;2)径流量自1994年呈显著性减少趋势,据此将径流序列划分为2个阶段,即基准期1958—1994年和变化期1995—2011年;3)变化期较基准期在枯水年、平水年和丰水年径流量分别下降64.6%、41.3%和45.5%,枯水年流量下降趋势最为明显;4)华县站以上控制区内降雨变化和人类活动对径流变化的贡献率分别为49.0%和51.0%,气候变化对渭河径流量的影响主要是由降水量的减少引起的。 |
| 英文摘要 | Research was conducted in a tributary of the Yellow River，Wei River． Streamflow at Huaxian station during the period of 1958 － 2011 were applied to identify the trends and abrupt changes by using Mann-Kendall test，non-parametric Pettitt test and double mass curve analysis in the Wei River basin． The simple water balance model was employed to quantify the effects of climate variability and human activities on streamflow． Results show that 1) a remarkable decrease trend in annual streamflow were detected with the rate of 0. 86 mm/a． 2) an abrupt change was identified in 1994． The streamflow time series were then divided into two periods，i． e． ，the baseline period ( 1958 － 1994) and the changed period ( 1995 － 2011) ． 3) Streamflow during the changed period decreased by 64. 6%，41. 3% and 45. 5% in dry year，normal year and wet year，respectively． 4) In the controlled region of Huaxian station，it was found that precipitation variability and human activities accounted for about 49. 0% and 51. 0% of the change in streamflow． Additionally，the effect of climate change on streamflow was mostly caused by precipitation decrease in the Wei River basin． |
| 语种 | 中文 |
| 公开日期 | 2014-10-21 |
| 源URL | [http://ir.iswc.ac.cn/handle/361005/5575]  |
| 专题 | 水土保持研究所_水保所知识产出(1956-2013) |
| 推荐引用方式 GB/T 7714 | 毕彩霞,穆兴民,赵广举,等. 渭河流域气候变化与人类活动对径流的影响[J]. 中国水土保持科学,2013,11(02):33-06. |
| APA | 毕彩霞,穆兴民,赵广举,&白桦.(2013).渭河流域气候变化与人类活动对径流的影响.中国水土保持科学,11(02),33-06. |
| MLA | 毕彩霞,et al."渭河流域气候变化与人类活动对径流的影响".中国水土保持科学 11.02(2013):33-06. |
入库方式： OAI收割
来源：水土保持研究所
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