项目名称: 基于高光谱和雷达数据的贺兰山森林参数反演算法研究
项目编号: No.41261089
项目类型: 地区科学基金项目
立项/批准年度: 2013
项目学科: 天文学、地球科学
项目作者: 王新云
作者单位: 宁夏大学
项目金额: 48万元
中文摘要: 森林生态参数是陆地生态系统中的重要参数。遥感技术的发展为系统地测量地表植被三维结构变化提供了重要的技术手段。提高遥感反演的森林结构参数的精度,对提高森林资源监测、生物量估算的精度、减少全球碳分布和碳循环估算的不确定性具有重要的意义。针对森林参数反演易受地形影响问题,本课题以贺兰山自然保护区的森林资源作为研究对象,从森林遥感机理模型的研究出发,结合高光谱数据和雷达数据提取森林生态参数,探索通过建立光学和雷达遥感协同反演模型反演干旱半干旱区地形起伏较大地区森林参数反演的方法,以期改善森林参数反演的精度,为区域乃至全球森林生态参数进而森林碳循环研究提供科学依据。本研究目前在国内外鲜见相关报道,属于前沿探索性研究,既具有理论意义,又具有重要的应用价值。
中文关键词: 森林生态系统;光学遥感;雷达遥感;生态参数;遥感估算
英文摘要: Forest ecological parameters is an important parameter in terrestrial ecosystems. The development of remote sensing technology provides an important technical means for the change of systematic measurement of three-dimensional vegetation structure. It is of great significance that improving the accuracy of remote sensing of forest structural parameters to improve the forest resource monitoring, the accuracy of biomss inverted, reducing the uncertainty of global carbon distribution and the carbon cycle. For topographic effect the forest parameter inversion, The object of this research are forest monitoring of the Helan mountain reserve, in Ningxia province. Based on the remote-sensing physical model, the forest ecological parameters is extracted that combined use of hyperspectral and radar images. The co-inversion model of optical and radar remotely sensed data is explored to estimate forest parameter in arid and semi-arid zones which is larger terrain slope for improving the accuracy of the inversion of forest parameters. It also provides the scientific basis for the research of regional and global forest ecosystem parameters and then the forest carbon cycle research. The study is rare in the domestic and foreign related news, belonging to the forefront of exploratory research. It is both theoretical significanc
英文关键词: forest ecosystem;optical remote sensing;radar remote sensing;ecological metrics;remote sensing estimation