[1]赵璐,梁川.近50年来四川省潜在蒸散量变化成因研究[J].水土保持研究,2014,21(04):26-30.
　ZHAO Lu,LIANG Chuan.Attribution Analyses of Potential Evapotranspiration Change in Sichuan in Recent 50 Years[J].Research of Soil and Water Conservation,2014,21(04):26-30.
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近50年来四川省潜在蒸散量变化成因研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 21 期数: 2014年04期 页码: 26-30 栏目: 出版日期: 2014-08-28
Title:
Attribution Analyses of Potential Evapotranspiration Change in Sichuan in Recent 50 Years
作者:
赵璐1,2, 梁川1
1. 四川大学 水利水电学院, 成都 610065;
2. 四川建筑职业技术学院 土木工程系, 四川 德阳 618000
Author(s):
ZHAO Lu1,2, LIANG Chuan1
1. School of Water Resources and Hydropower, Sichuan University, Chengdu 610065, China;
2. Department of Civil Engineering, Sichuan College of Architectural Technoledge, Deyang Sichuan 618000, China
关键词:
FAO-56 Penman-Monteith; 四川省; 4个分区; 贡献率法; ET0
Keywords:
FAO-56 Penman-Monteith; Sichuan Province; four regions; contribution rate method; ET0
分类号:
S161.4
摘要:
利用FAO-56 Penman-Monteith法计算四川省4个分区1960—2010年逐月的潜在蒸散量（ET0），采用贡献率法分析ET0近50 a来变化成因。结果表明：整个四川省、四川盆地和盆周山地日照时数和风速下降对ET0的负贡献超过平均、最高和最低气温上升以及相对湿度下降对ET0的正贡献，使ET0呈下降趋势；川西北高原平均、最高和最低气温上升以及相对湿度下降对ET0的正贡献超过风速和日照时数下降对ET0的负贡献，使ET0呈上升趋势；川西南山地平均、最低气温、日照时数和风速的下降对ET0的负贡献超过了最高气温上升和相对湿度下降对ET0的正贡献，使ET0呈下降趋势。四川省和四川盆地日照时数下降是ET0下降的主要原因，盆周山地和川西南山地风速下降是ET0下降的主要原因，川西北高原最低温度上升是ET0上升的主要原因。
Abstract:
FAO-56 Penman-Monteith method was used to estimate the monthly potential evapotranspiration (ET0) from 1960 to 2010 in four different regions of Sichuan Province. Then the causes for ET0 change in recent 50 years were analyzed by contribution rate method. Results show that in the whole province, Sichuan basin and mountainous area around basin, the negative contribution of decreased sunshine duration and wind speed to ET0 is greater than the positive contribution of increased average, maximum, minimum temperature and decreased relative humidity to ET0, which causes ET0 to decrease. While in northwest Sichuan plateau the positive contribution of upward average, maximum, minimum temperature and downward relative humidity to ET0 exceeds the negative contribution of downward sunshine duration and wind speed, inducing ET0 to increase. In mountainous area of southwest Sichuan the negative contribution of decreased average, minimum temperature, sunshine duration and wind speed to ET0 exceeds the positive contribution of increased maximum temperature and decreased relative humidity, resulting in decline of ET0. The decreased sunshine duration in the whole province and Sichuan basin and the decreased wind speed in mountainous area around basin and mountainous area of southwest Sichuan are the primary contributors to ET0 decrease, respectively. The increased ET0 in northwest Sichuan plateau is mainly attributed to the increased minimum temperature.

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备注/Memo

收稿日期:2013-08-06;改回日期:2013-08-18。
基金项目:水利部公益性项目“四川季节性缺水区农田雨水高效利用技术研究”（201101038）；四川省重点实验室开放基金资助项目“南方丘区节水农业研究”（CJS201201）
作者简介:赵璐(1986-),女,四川南充人,博士生,主要从事节水农业和水文气象方面的研究。E-mail:luya1121@163.com
通讯作者:梁川(1957-),男,四川雅安人,教授,博士生导师,主要从事水资源规划与管理方面的研究。E-mail:lchester@sohu.com

更新日期/Last Update: 1900-01-01