泾河水沙关系变化研究
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摘要
本文采用线性分析和Mann-kendall检验的方法,分析了1960—2017年泾河流域环县站、崆峒站、西峰站、长武站4个观测站降水和温度的年际变化,探究了泾河流域降水-径流-输沙的相关关系。结果表明:泾河流域年温度呈显著上升趋势,年降水量呈微下降趋势,年径流量和年输沙量都呈明显下降趋势,特别是2000年以后径流量和输沙量减少的幅度相对较大,主要原因是受人类活动影响,降水因子影响较小。研究结果可为黄河和泾河流域水沙关系变化归因提供参考。
The methods of linear analysis and Mann-kendall test are adopted in the paper to analyze the interannual changes of precipitation and temperature of Jinghe River Basin in four observation stations including Huanxian,Kongtong,Xifeng and Changwu from 1960 to 2017. The correlation of precipitation,runoff and sediment discharge in Jinghe River Basin is explored. The results show that the annual temperature in Jinghe River Basin shows a significant upward trend. The annual precipitation shows a slight downward trend. The annual runoff and the sediment discharge show significant downward trend. The runoff and sediment discharge decrease by a relatively large margin especially after 2000 mainly effected by human activities,but slightly influenced by precipitation factor. The results of the study can provide references for attribution of relationship between runoff and sediment in Yellow River Basin and Jinghe River Basin.
The methods of linear analysis and Mann-kendall test are adopted in the paper to analyze the interannual changes of precipitation and temperature of Jinghe River Basin in four observation stations including Huanxian,Kongtong,Xifeng and Changwu from 1960 to 2017. The correlation of precipitation,runoff and sediment discharge in Jinghe River Basin is explored. The results show that the annual temperature in Jinghe River Basin shows a significant upward trend. The annual precipitation shows a slight downward trend. The annual runoff and the sediment discharge show significant downward trend. The runoff and sediment discharge decrease by a relatively large margin especially after 2000 mainly effected by human activities,but slightly influenced by precipitation factor. The results of the study can provide references for attribution of relationship between runoff and sediment in Yellow River Basin and Jinghe River Basin.
引文
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[11]郑培龙,李云霞,赵阳,等.黄土高原泾河流域气候和土地利用变化对径流产沙的影响[J].水土保持研究,2015,22(5):20-24.
[2]刘苏峡,张士锋,刘昌明.黄河流域水循环研究的进展和展望[J].地理研究,2001(3):257-265.
[3]胡春宏,张晓明.论黄河水沙变化趋势预测研究的若干问题[J].水利学报,2018,49(9):1028-1039.
[4]江净超,刘军志.基于似然函数的黄河降水-径流关系变点分析[J].人民黄河,2018,40(2):10-13.
[5]索安宁,李金朝,王天明,等.黄土高原流域土地利用变化的水土流失效应[J].水利学报,2008(7):767-772.
[6]颜明,郑明国,舒畅,等.泾河流域径流-泥沙的尺度效应研究[J].水土保持通报,2016,36(6):184-188,194.
[7]黄惠娟,王毓森,杨勇.泾河干流上游降水和径流变化趋势分析[J].甘肃水利水电技术,2017,53(6):6-8.
[8]贺亮亮,张淑兰,于澎涛,等.泾河流域的降水径流影响及其空间尺度效应[J].生态环境学报,2017,26(3):415-421.
[9]李娟.梯田措施对泾河流域水沙变化的影响研究[D].咸阳:西北农林科技大学,2015.
[10]郭爱军,畅建霞,王义民,等.近50年泾河流域降雨-径流关系变化及驱动因素定量分析[J].农业工程学报,2015,31(14):165-171.
[11]郑培龙,李云霞,赵阳,等.黄土高原泾河流域气候和土地利用变化对径流产沙的影响[J].水土保持研究,2015,22(5):20-24.