[1]胡雪瑛,武胜利,刘强吉,等.54年来和田地区潜在蒸散量的变化特征及影响因素[J].水土保持研究,2017,24(01):145-150.
　HU Xueying,WU Shengli,LIU Qiangji,et al.Variation Characteristics and Influence Factors of Potential Evapotranspiration in Hotan Region in Recent 54 Years[J].Research of Soil and Water Conservation,2017,24(01):145-150.
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54年来和田地区潜在蒸散量的变化特征及影响因素

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 24 期数: 2017年01期 页码: 145-150 栏目: 出版日期: 2017-02-28
Title:
Variation Characteristics and Influence Factors of Potential Evapotranspiration in Hotan Region in Recent 54 Years
作者:
胡雪瑛1,2, 武胜利1,2, 刘强吉1,2, 房靓1,2
1. 新疆师范大学 地理科学与旅游学院, 乌鲁木齐 830054;
2. 新疆干旱区湖泊环境与资源重点实验室/新疆师范大学, 乌鲁木齐 830054
Author(s):
HU Xueying1,2, WU Shengli1,2, LIU Qiangji1,2, FANG Liang1,2
1. College of Geographical Science and Tourism, Xinjiang Normal University, Urumqi 830054, China;
2. Xinjiang Key Laboratory of Lake Environment and Resources, Xinjiang Normal University, Urumqi 830054, China
关键词:
和田地区; 潜在蒸散量; Penman-Monteith模型; 气候因子
Keywords:
Hotan region; potential evapotranspiration; Penman-Monteith model; climatic factors
分类号:
S161.4
摘要:
为了在全球气候变暖的背景下，探讨和田地区干湿状况的变化，为该区水资源的合理利用及保护脆弱的生态环境提供科学依据。应用Penman-Monteith模型计算潜在蒸散量，采用Mann-Kendall突变检验、小波分析等方法分析了潜在蒸散量的变化特征，结合相关性分析探讨了气候因子对其影响强度。结果表明：1960—2013年和田地区潜在蒸散量呈“增加—减小—增加”的变化趋势，年际变化倾向率为-2.74 mm/a，总体上呈减小趋势；四季潜在蒸散量表现出夏季 > 春季 > 秋季 > 冬季，均呈减小趋势，其中春季的减小趋势最显著；潜在蒸散量最大值出现在6月，最小值出现在12月；潜在蒸散量在1980年发生一次减少突变，并存在21年的第一主周期和12年的第二主周期；平均风速的减小和降水量的增加是导致潜在蒸散量减小的主要原因。
Abstract:
The paper aims to explore the change of dry-wet conditions in Hotan region under the background of the global warming, so as to provide the scientific reference for the effective use of water resources and protect the fragile ecological environment. Based on the daily meteorological data from 1960 to 2013 provided by 5 meteorological stations in Hotan region, the Penman-Monteith model was used to calculate potential evapotranspiration, and the variations of potential evapotranspiration were analyzed by the methods of Mann-Kendall abrupt test, Morlet wavelet function and so on, and the correlation analysis was used to discuss the dominant factor affecting the potential evapotranspiration. The results indicated that the variation trends of annual potential evapotranspiration was ‘increase—decrease—increase’ from 1960s, there was a decreasing trend in general because the changing rate varied at -2.74 mm/year. Seasonal potential evapotranspiration decreased in the order: summer > spring > autumn > winter, and decreased in each seasons especially in spring. The maximum value of potential evapotranspiration was observed in June, the minimum value was found in December. Change of potential evapotranspiration had the 12-year and 21-year periods, and the abrupt change happened in 1980. The decrease of wind speeds and a significant increase of precipitation in Hotan region in recent 54 years were the dominating factors leading to the decrease of potential evapotranspiration.

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备注/Memo

收稿日期:2016-05-06;改回日期:2016-06-17。
基金项目:国家自然科学基金项目“艾比湖流域抛物线沙丘形成与演变研究”（41161004）；国家自然科学基金委员会—新疆维吾尔自治区人民政府联合基金重点项目“新疆博斯腾湖环境演变及对气候变化的响应”（U1138302）；新疆干旱区湖泊与资源重点实验室基金项目“500年来博斯腾湖流域柽柳沙堆年层沉积及其环境记录”（XJDX0909-2012-03）
作者简介:胡雪瑛(1992-),女,新疆吉木萨尔县人,硕士研究生,研究方向为干旱区环境演变与灾害防治。E-mail:519288698@qq.com
通讯作者:武胜利(1977-),男,河南西平县人,教授,博士,主要从事干旱区环境演变与灾害防治研究。E-mail:wushengli77@126.com

更新日期/Last Update: 1900-01-01