Abdulla·Abliz,Tashpolat Tiyip,DING Jian-li,et al.Vegetation Temperature Condition Index for Drought Monitoring in Keriya River Basin[J].Research of Soil and Water Conservation,2011,18(04):153-156.
基于植被温度条件指数的克里雅河流域干旱监测研究
- Title:
- Vegetation Temperature Condition Index for Drought Monitoring in Keriya River Basin
- 分类号:
- S423
- 摘要:
- 干旱是干旱半干旱地区由气候变化和人类生产活动而引起的环境问题之一。区域环境干旱化趋势的研究对该区域生态环境、水资源管理及农业生产有着重要意义。在植被温度条件指数（VTCI）的基础上对克里雅河流域进行干旱监测。结果表明：2005-2010年研究区整体上向干旱化方向发展，由北向南干旱趋势依次增强。其中，南部山区2005年VTCI值为0.696 4，到2010年VTCI值为0.486 4，其变化相差-0.210 0，旱化趋势较为严重；研究区中部的VTCI相差值分别为0.071 3和0.042 6，表现为有轻微干旱程度减弱趋势，变化不明显；北部地区即克里雅河下游地区的VTCI值从2005年的0.121 0减少到2010年的0.075 4，VTCI相差-0.045 6，呈轻微旱化趋势。
- Abstract:
- Drought is one of the environmental problems caused by climatic changes and human activity in arid and semi-arid regions. Study on regional environment aridity is very significant for regional eco-environment, water resources management and agriculture. In this paper, vegetation temperature condition index (VTCI) was used for drought monitoring in Keriya and Qira County, Xinjiang. From 2005 to 2010, study revealed a gradual increase in the extent of drought in the study area. Southern mountain area has the quick speed to drought, while northern area turns into drought slowly. During these five years, the average VTCI value of southern mountain area has decreased with the value of-0.210 0;the average VTCI transformation values of the central part of study area are 0.071 3 and 0.042 6, respectively, showing little trend to becoming wet;the lower river reaches of Keriya River is becoming a little drier with the Vegetation temperature (VTCI) transformation value of-0.045 6.
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备注/Memo
收稿日期:2010-12-9;改回日期:2011-1-14。
基金项目:国家自然科学基金项目（40961025）；国家自然科学基金项目（40901163）；新疆维吾尔自治区科技支撑计划项目（201033122）
作者简介:阿不都拉#阿不力孜（1983- ），男，（维吾尔族），新疆人，硕士，研究方向为干旱区资源环境及遥感应用。E-mail：abdulla_xju@si-na.com
通讯作者:塔西甫拉提#特依拜（1958- ），男，（维吾尔族），新疆人，教授，博士，研究领域为资源遥感与GIS。E-mail：tash@xju.edu.cn