[1]曹雷,丁建丽,牛增懿.基于TVDI的艾比湖地区土壤水分时空变化分析[J].水土保持研究,2016,23(03):43-47.
　CAO Lei,DING Jianli,NIU Zengyi.Analysis of Spatiotemporal Change of Soil Moisture of the Ebinur Lake Area Based on TVDI[J].Research of Soil and Water Conservation,2016,23(03):43-47.
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基于TVDI的艾比湖地区土壤水分时空变化分析

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 23 期数: 2016年03期 页码: 43-47 栏目: 出版日期: 2016-06-28
Title:
Analysis of Spatiotemporal Change of Soil Moisture of the Ebinur Lake Area Based on TVDI
作者:
曹雷1,2, 丁建丽1,2, 牛增懿1,2
1. 新疆大学 资源与环境科学学院, 乌鲁木齐 830046;
2. 新疆大学 绿洲生态教育部重点实验室, 乌鲁木齐 830046
Author(s):
CAO Lei1,2, DING Jianli1,2, NIU Zengyi1,2
1. College of Resources and Environment Science, Xinjiang University, Urumqi 830046, China;
2. Key Laboratory of Oasis Ecosystem, Ministry of Education, Xinjiang University, Urumqi 830046, China
关键词:
温度植被干旱指数(TVDI); 土壤水分; 艾比湖; 时空变化
Keywords:
temperature vegetation drought index (TVDI); soil moisture; Ebinur Lake; spatiotemporal change
分类号:
TP79;S152.7
摘要:
以艾比湖湿地为研究区，利用2003年5月和2013年5月Landsat遥感影像，提取了地表温度（Ts）和植被指数（NDVI）反演温度植被干旱指数（TVDI），并构建特征空间，分析了土壤水分的时空变化。试验结果表明：TVDI可有效反演区域土壤水分，且精度较高；自2003—2013年共10 a的时间跨度下，艾比湖地区土壤水分空间分布由湖区向周边地区呈减少趋势；湿润、正常和轻旱面积减少，干旱和重旱面积增加，呈现“两增三减”的趋势。区域土壤水分分布情况不容乐观，仍需加强当地水资源管理，以保障区域生态系统的正常运转。
Abstract:
Ebinur lake area was taken as a study area in this study. Landsat satellite imageries taken in May of 2003 and May of 2013 were used as the main data sources to extract surface temperature (Ts) and vegetation index (NDVI) in order to inverse the temperature vegetation drought index (TVDI), construct feature space and analyze spatiotemporal change of soil moisture. The results showed that TVDI could effectively inverse the regional soil moisture with high precision; from 2003 to 2013, a total of 10-year span, the soil moisture spatial distribution from the lake to surrounding areas showed a decreasing trend in Ebinur Lake area; wet, normal and light drought areas were reducing, drought and heavy drought areas increased and showed the tendency of ‘two-increase and three-decrease’. Regional distribution of soil moisture is not optimistic. The local water resources management need to be strengthened in order to ensure the normal operation of regional ecological system.

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备注/Memo

收稿日期:2015-05-28;改回日期:2015-06-09。
基金项目:国家自然科学基金重点项目（41130531）；新疆维吾尔自治区青年科技创新人才培养工程（2013711014）；教育部新世纪优秀人才支持计划（NCET-12-1075）
作者简介:曹雷(1992-),女,四川南充人,硕士,研究方向为干旱区资源遥感研究。E-mail:clhyesa@163.com
通讯作者:丁建丽(1974-),男,山东成武人,博士,教授,主要从事干旱区资源遥感研究。E-mail:watarid@xju.edu.cn

更新日期/Last Update: 1900-01-01