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遥感技术与应用  2014, Vol. 29 Issue (2): 202-211    DOI: 10.11873/j.issn.1004-0323.2014.2.0202
模型与反演     
基于地面实测高光谱数据的三江源中东部草地植被光谱特征研究
安如,姜丹萍,李晓雪,王喆,Jonathan Arthur Quaye-Ballard
(河海大学地球科学与工程学院地理系,江苏 南京 210098)
Using Hyperspectral Data to Determine Spectral Characteristics of Grassland Vegetation in Central and Eastern Parts of Three-river Source
An Ru,Jiang Danping,Li Xiaoxue,Wang Zhe,Jonathan Arthur Quaye-Ballard
(School of Earth Science and Engineering,Hehai University,Nanjing 210098,China)
 全文: PDF(4667 KB)  
摘要:

草地不仅是畜牧业的生产基地,而且是生态安全屏障保护和牧民生活与草原文化传承的基础,具有生态、生产和生活功能。然而,草地日益退化导致的生态经济问题越来越突出。因此,实时、准确地监测草地的退化具有重要意义。根据所测定的各种地面植被的光谱数据,分析了三江源中东部典型草原区常见草种的光谱特性;利用一阶微分法、连续统去除法和归一化微分比的方法对草地植被光谱反射曲线进行了处理,提取了典型草地植被的光谱特征;通过光谱分析法能准确识别藏嵩草和小嵩草优势种,取得了较好的精度。为高光谱遥感草地监测提供了有力依据。

关键词: 高光谱草种识别光谱特征三江源    
Abstract:

Grasslands not only support animal production,but also play an important role as an ecological safety barrier and they maintain herders’ livelihood as well as inherited culture.However,a series of ecological problems are becoming more and more serious because of increasing grassland degradation.Monitoring the ecological status of grassland in real-time and accurately is important.The spectral characteristics of the common grasses in central and eastern part of the Three River Source were analyzed by measuring spectral data of various plants.The spectral reflectance curve of grassland vegetation was processed by methods of first\|order differential,continuum removing and normalized differential ratio to extract the spectral characteristics of typical grassland vegetation.Dominant species of Kobresia tibetica and Kobresia parva were identified with high precision through spectral analysis,which provides the strong basis of applying hyperspectral remote sensing in grassland monitoring.

Key words: Hyperspectral    Grass species recognition    Spectral characteristics    Central and Eastern parts of Three-river Source 
收稿日期: 2013-01-14 出版日期: 2014-05-14
:  TP 79  
基金资助:

国家自然科学基金“基于新生态系统功能指数的三江源区大面积草地退化遥感动态监测方法研究”(41271361),973 计划项目“国家尺度生态系统服务功能变化及综合评价”( 2009CB421105),“十一五”国家科技支撑计划项目“国家生态恢复重建的综合监测评估关键技术研究”(2006BAC08B00) 。

通讯作者: 姜丹萍(1988-),女,江苏镇江人,硕士研究生,主要从事高光谱遥感研究。 Email:jiang-danping@163.com。   
作者简介: 安如(1963-),女,江苏淮安人,教授,主要从事遥感、地理信息系统理论与方法研究。 Email:anrunj@163.com。
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安如
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Jonathan Arthur Quaye-Ballard

引用本文:

安如,姜丹萍,李晓雪,王喆,Jonathan Arthur Quaye-Ballard . 基于地面实测高光谱数据的三江源中东部草地植被光谱特征研究[J]. 遥感技术与应用, 2014, 29(2): 202-211.

An Ru,Jiang Danping,Li Xiaoxue,Wang Zhe,Jonathan Arthur Quaye-Ballard. Using Hyperspectral Data to Determine Spectral Characteristics of Grassland Vegetation in Central and Eastern Parts of Three-river Source. Remote Sensing Technology and Application, 2014, 29(2): 202-211.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2014.2.0202        http://www.rsta.ac.cn/CN/Y2014/V29/I2/202

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