[1]刘婕,王明霞,毋兆鹏.遥感模型支持下的精河流域绿洲表层土壤水分时空分布特征[J].水土保持研究,2016,23(03):95-99.
　LIU Jie,WANG Mingxia,WU Zhaopeng.Spatiotemporal Distribution Characteristics of Soil Moisture in Surface Layer of Oasis in Jinghe Basin Under the Support of Remote Sensing Model[J].Research of Soil and Water Conservation,2016,23(03):95-99.
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遥感模型支持下的精河流域绿洲表层土壤水分时空分布特征

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 23 期数: 2016年03期 页码: 95-99 栏目: 出版日期: 2016-06-28
Title:
Spatiotemporal Distribution Characteristics of Soil Moisture in Surface Layer of Oasis in Jinghe Basin Under the Support of Remote Sensing Model
作者:
刘婕1, 王明霞1, 毋兆鹏1,2
1. 新疆师范大学 地理科学与旅游学院, 乌鲁木齐 830054;
2. 新疆师范大学 干旱区湖泊环境与资源新疆维吾尔自治区重点实验室, 乌鲁木齐 830054
Author(s):
LIU Jie1, WANG Mingxia1, WU Zhaopeng1,2
1. College of Geography and Tourism Science, Xinjiang Normal University, Urumqi 830054, China;
2. Municipal Key Laboratory of Arid Lake Environment and Resources, Xinjiang Normal University, Urumqi 830054, China
关键词:
遥感; 土壤水分; 时空分布; 精河流域
Keywords:
remote sensing; soil moisture; spatiotemporal distribution; Jinghe Basin
分类号:
S152.7
摘要:
土壤水分对干旱区气候变化、生态环境稳定、绿洲农业发展有着重要的影响作用。以新疆精河流域绿洲为研究区，基于Landsat TM和ETM+影像，借助修正后的温度植被干旱指数（TVDIm），进而反演了研究区2002年和2011年春、夏、秋3季的表层土壤水分。结果表明：（1）野外同步实测数据精度验证R2值为0.800 2，TVDIm能够较好反映绿洲土壤水分分布状况；（2）研究区表层土壤水分的季节性变化明显，即秋季 > 夏季 > 春季，近10年间土壤水分总体呈趋湿特征；（3）研究区绿洲内部的土壤水分状况明显优于过渡带及天然荒漠区；（4）土地利用叠加分析指示，人类活动对土壤水分的空间分布影响强烈。
Abstract:
Soil moisture has an important influence on the change of climate, the stability of ecological environment and the development of oasis farming in the arid area. Based on the Landsat TM and ETM+ images, we selected the Oasis of Jinghe Basin as the study site and investigated the moisture changes of the topsoil in spring, summer and autumn during the period from 2002 and 2011 using the modified Temperature-Vegetation Dryness Index (TVDIm). The findings are listed as follows： (1) By comparing and measuring, we found that the R2 value of precision is 0.800 2, which means that TVDIm can better reflect the distribution of soil moisture in oasis; (2) The seasonal changes of moisture in the topsoil of the study area are significant, that is to say the moisture decreased in the order: autumn > summer > spring, and the water content is becoming higher in recent 10 years; (3) The condition of soil moisture in the inland of the study area is better than that in the transition belts and natural deserts; (4) The overlay analysis of land use indicated that human activities had the strong influence on the spatial distribution of soil moisture.

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备注/Memo

收稿日期:2015-06-02;改回日期:2015-06-18。
基金项目:新疆维吾尔自治区自然科学资助项目（2013211A022）；新疆师范大学研究生科技创新项目（XSY201502006）；新疆师范大学地理学博士点支撑学科（XJNU-DL-201515）；新疆维吾尔自治区重点实验室“新疆干旱区湖泊环境与资源实验室”基金（XJDX0909201206）
作者简介:刘婕(1992-),女,河南驻马店人,硕士研究生,研究方向为资源环境地理信息系统。E-mail:liujie_ixj@163.com
通讯作者:毋兆鹏(1976-),男,陕西西安人,博士,教授,主要从事3S技术与绿洲资源开发研究。E-mail:wuzhaopengxj@sina.com

更新日期/Last Update: 1900-01-01