气候因素对阿克苏河径流变化影响的定量评估

【目的】探究阿克苏河径流变化的归因。【方法】采用Mann-Kendall-Sneyers检验估计流域水文、气象数据的变化趋势和突变情况,并试图用3种改进的弹性系数法评估气候要素(尤其是温度)对阿克苏河径流变化的影响。【结果】径流和温度分别以11.73 m3/(s?10 a)和0.26 ℃/10 a的速率显著递增。降雨也呈显著上升趋势,增幅为14.31 mm/10 a的速率递增,而潜在蒸散发呈显著下降趋势(21.89 mm/10 a),径流的突变点为1993年。因此,采用1960—1993年的多年平均径流和气候因素作为衡量变化的基准值。1994—2010年,径流量相对1960—1993年增加了2...

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Published inGuanʻgai paishui xuebao Vol. 40; no. 1; pp. 115 - 122
Main Authors LI, Hongbin, LIU Yating, WANG, Weiguang, PANG Maitian
Format Journal Article
LanguageChinese
Published Xinxiang City Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage 01.01.2021
河海大学水文水资源学院,南京 210098%河海大学水文水资源学院,南京 210098
河海大学水文水资源与水利工程科学国家重点实验室,南京 210098
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ISSN1672-3317
DOI10.13522/j.cnki.ggps.2020287

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Abstract 【目的】探究阿克苏河径流变化的归因。【方法】采用Mann-Kendall-Sneyers检验估计流域水文、气象数据的变化趋势和突变情况,并试图用3种改进的弹性系数法评估气候要素(尤其是温度)对阿克苏河径流变化的影响。【结果】径流和温度分别以11.73 m3/(s?10 a)和0.26 ℃/10 a的速率显著递增。降雨也呈显著上升趋势,增幅为14.31 mm/10 a的速率递增,而潜在蒸散发呈显著下降趋势(21.89 mm/10 a),径流的突变点为1993年。因此,采用1960—1993年的多年平均径流和气候因素作为衡量变化的基准值。1994—2010年,径流量相对1960—1993年增加了23.1%。敏感性分析表明,温度升高对径流变化的相对贡献率为46.7%,是径流量增加的最主要因素,而降水量和潜在蒸散发的作用分别占径流量变化的20.5%和24.9%;其他非气候要素(主要是人类活动)对径流变化的相对贡献率约为7.9%。【结论】气候变化是阿克苏河径流量变化的主要原因,其中温度的贡献率最大。
AbstractList 【目的】探究阿克苏河径流变化的归因。【方法】采用Mann-Kendall-Sneyers检验估计流域水文、气象数据的变化趋势和突变情况,并试图用3种改进的弹性系数法评估气候要素(尤其是温度)对阿克苏河径流变化的影响。【结果】径流和温度分别以11.73 m3/(s?10 a)和0.26 ℃/10 a的速率显著递增。降雨也呈显著上升趋势,增幅为14.31 mm/10 a的速率递增,而潜在蒸散发呈显著下降趋势(21.89 mm/10 a),径流的突变点为1993年。因此,采用1960—1993年的多年平均径流和气候因素作为衡量变化的基准值。1994—2010年,径流量相对1960—1993年增加了23.1%。敏感性分析表明,温度升高对径流变化的相对贡献率为46.7%,是径流量增加的最主要因素,而降水量和潜在蒸散发的作用分别占径流量变化的20.5%和24.9%;其他非气候要素(主要是人类活动)对径流变化的相对贡献率约为7.9%。【结论】气候变化是阿克苏河径流量变化的主要原因,其中温度的贡献率最大。
P333.1; [目的]探究阿克苏河径流变化的归因.[方法]采用Mann-Kendall-Sneyers检验估计流域水文、气象数据的变化趋势和突变情况,并试图用3种改进的弹性系数法评估气候要素(尤其是温度)对阿克苏河径流变化的影响.[结果]径流和温度分别以11.73 m3/(s·10 a)和0.26℃/10 a的速率显著递增.降雨也呈显著上升趋势,增幅为14.31 mm/10 a的速率递增,而潜在蒸散发呈显著下降趋势(21.89 mm/10 a),径流的突变点为1993年.因此,采用1960—1993年的多年平均径流和气候因素作为衡量变化的基准值.1994—2010年,径流量相对1960—1993年增加了23.1%.敏感性分析表明,温度升高对径流变化的相对贡献率为46.7%,是径流量增加的最主要因素,而降水量和潜在蒸散发的作用分别占径流量变化的20.5%和24.9%;其他非气候要素(主要是人类活动)对径流变化的相对贡献率约为7.9%.[结论]气候变化是阿克苏河径流量变化的主要原因,其中温度的贡献率最大.
Author PANG Maitian
WANG, Weiguang
LI, Hongbin
LIU Yating
AuthorAffiliation 河海大学水文水资源学院,南京 210098%河海大学水文水资源学院,南京 210098;河海大学水文水资源与水利工程科学国家重点实验室,南京 210098
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WANG Weiguang
LI Hongbin
LIU Yating
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弹性系数
气候变化
径流变化
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PublicationTitle_FL Journal of Irrigation and Drainage
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河海大学水文水资源学院,南京 210098%河海大学水文水资源学院,南京 210098
河海大学水文水资源与水利工程科学国家重点实验室,南京 210098
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Snippet 【目的】探究阿克苏河径流变化的归因。【方法】采用Mann-Kendall-Sneyers检验估计流域水文、气象数据的变化趋势和突变情况,并试图用3种改进的弹性系数法评估气候要素(尤其是温...
P333.1; [目的]探究阿克苏河径流变化的归因.[方法]采用Mann-Kendall-Sneyers检验估计流域水文、气象数据的变化趋势和突变情况,并试图用3种改进的弹性系数法评估气候要素(尤...
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SubjectTerms Anthropogenic factors
Average flow
Climate change
Elasticity
Evapotranspiration
Flow rates
Flow velocity
Human influences
Meteorological data
Precipitation
Regression coefficients
Rivers
Sensitivity analysis
Statistical analysis
Statistical tests
Stream discharge
Stream flow
Surface runoff
Water flow
Title 气候因素对阿克苏河径流变化影响的定量评估
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