新疆精河流域实际蒸散发时空变化特征

doi:10.11934/j.issn.1673-4831.2017.07.004

生态与农村环境学报 ›› 2017, Vol. 33 ›› Issue (7): 600-606.doi: 10.11934/j.issn.1673-4831.2017.07.004

新疆精河流域实际蒸散发时空变化特征

代鹏超^1,2, 牛苏娟¹, 毋兆鹏^1,2, 施云霞¹

1. 新疆师范大学地理科学与旅游学院, 新疆乌鲁木齐 830054;
2. 新疆干旱区湖泊环境与资源实验室, 新疆乌鲁木齐 830054

收稿日期:2017-02-05 出版日期:2017-07-25 发布日期:2017-07-25
通讯作者: 毋兆鹏,E-mail:wuzhaopengxj@sina.com E-mail:wuzhaopengxj@sina.com
作者简介:代鹏超(1990-),男,新疆乌鲁木齐人,硕士生,研究方向为资源环境与地理信息系统。E-mail:daipengchaoxj@sina.com
基金资助:
国家自然科学基金（41261055）；新疆维吾尔自治区科技基金（201533109）；新疆师范大学地理学博士点开放基金（XJNU-DL-201602）；新疆师范大学大学生创新创业训练项目（201710762004）；新疆师范大学"十三五"校级重点学科地理学

Temporal and Spatial Characteristics of Actual Evapotranspiration in Jinghe Watershed, Xinjiang

DAI Peng-chao^1,2, NIU Su-juan¹, WU Zhao-peng^1,2, SHI Yun-xia¹

1. College of Geography and Tourism Science, Xinjiang Normal University, Urumqi 830054, China;
2. Xinjiang Laboratory of Lake Environment and Resources in Arid Zone, Urumqi 830054, China

Received:2017-02-05 Online:2017-07-25 Published:2017-07-25

摘要/Abstract

摘要：

精河流域是新疆天山北坡经济带的重要组成部分。利用近60 a气象数据及Landsat 5 TM影像数据，采用Penman-Monteith公式和SEBAL模型、morlet小波分析和M-K突变检验，研究了精河流域实际蒸散量时空格局、变化特征及周期性。结果表明：（1）全流域实际蒸散量的时空分布变化受到气象要素及地表下垫面的影响，近60 a蒸散量整体呈显著波动减小趋势，实际蒸散量变化速率在季节上表现为夏季>春季>秋季>冬季。（2）实际蒸散量于1982年突变后年平均蒸散量减少150.654 mm（17.361%），且蒸散量变化存在以29 a为主的3个振荡周期，未来15 a蒸散量将呈先小幅上升后下降的趋势。（3）蒸散量的空间分布变化与地表土地利用类型具有显著相关关系，相关性表现为水域>耕地>林地>草地>未利用地。

关键词: 精河流域, 实际蒸散发, Penman-Monteith公式, SEBAL模型

Abstract:

The Jinghe watershed is an important part of the North Slope Economic Development Belt of the Tianshan Mountains in Xinjiang. The meteorological data of the period from 1953 to 2015 and the Landsat 5 TM images of the years 1998, 2007 and 2011 of the region were analyzed for spatio-temporal variation of the actual evapotranspiration, its characteristics and periodicity with the help of the Penman-Monteith formula, SEBAL model, Morlet wavelet analysis model and M-K mutation test model. Results show:(1) Temporal and spatial distribution of evapotranspiration is influenced by meteorological factors and underlying surface in the Jinghe watershed. The evapotranspiration of the past 60 years as a whole exhibits a significant declining trend with fluctuation in the year 1967 and 1994. In terms of temporal evapotranspiration variation rate, the four seasons follows an order of summer > spring > fall > winter. (2) The mean annual evapotranspiration dropped about 150.654 mm (17.361%) after the sudden change in 1982. The variation of the actual evapotranspiration consisted of three oscillation periods, each lasted for around 29 years, which indicates that in the 15 years to follow the mean annual evapotranspiration tends to ascend first by a small margin and then descend. And (3) spatial distribution of the evapotranspiration is significantly related to the type of land use, and it declines with the type of surface land use follows an order of waters>cultivated land>forest land>grass land>unused land.

Key words: Jinghe Watershed, actual evapotranspiration, Penman-Monteith formula, SEBAL model

中图分类号:

P426.2

代鹏超, 牛苏娟, 毋兆鹏, 施云霞. 新疆精河流域实际蒸散发时空变化特征[J]. 生态与农村环境学报, 2017, 33(7): 600-606.

DAI Peng-chao, NIU Su-juan, WU Zhao-peng, SHI Yun-xia. Temporal and Spatial Characteristics of Actual Evapotranspiration in Jinghe Watershed, Xinjiang[J]. Journal of Ecology and Rural Environment, 2017, 33(7): 600-606.

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新疆精河流域实际蒸散发时空变化特征

Temporal and Spatial Characteristics of Actual Evapotranspiration in Jinghe Watershed, Xinjiang

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