| 基于MODIS-NDVI的天山北坡中段草地动态估产模型研究 |
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| 引用本文： | 王新欣,朱进忠,范燕敏,武鹏飞.基于MODIS-NDVI的天山北坡中段草地动态估产模型研究[J].草业科学,2009,26(7):24-27. |
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| 作者姓名： | 王新欣 朱进忠 范燕敏 武鹏飞 |
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| 作者单位： | 1. 新疆农业大学草业与环境科学学院,新疆草地资源与生态重点实验室,新疆,乌鲁木齐,830052
2. 新疆遥感卫星地面站,新疆,乌鲁木齐,830000 |
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| 基金项目： | 新疆维吾尔自治区重点实验室新疆草地资源与生态实验室开放课题(XJDX0201-2005-02) |
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| 摘 要： | 利用EOS/MODIS卫星遥感数据，以天山北坡中段山地草原带为典型研究区，进行草地生物量变化动态监测。运用植被指数最大合成法，分析了研究区草地植被指数的时空变化特征，以及植被指数NDVI与地上生物量的相关关系，建立了MODIS NDVI在山地草甸草原、山地草原和山地荒漠草原上不同季节的生物量动态估测模型。结果表明：3种草地类型的最优动态估产模型分别是一元线性回归模型、二次曲线回归模型、幂函数曲线模型，估产精度分别达到83.06%、90.85%、88.06%。
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| 关 键 词： | EOS/MODIS 植被指数 动态监测 估产模型 |
Research on dynamic estimation models of grassland based on MODIS-NDVI in the middle section of northern hillside of Tianshan Mountain |
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| WANG Xin-xin,ZHU Jin-zhong,FAN Yan-min,WU Peng-fei.Research on dynamic estimation models of grassland based on MODIS-NDVI in the middle section of northern hillside of Tianshan Mountain[J].Pratacultural Science,2009,26(7):24-27. |
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| Authors: | WANG Xin-xin ZHU Jin-zhong FAN Yan-min WU Peng-fei |
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| Institution: | 1.College of Pratacultural and Environmental Science;Xingjian Agriculture University;Xinjiang Key Laboratory of Grassland Resource and Ecology;Urumqi 830052;China;2.Xinjiang Remote Sensing Satellite Ground Station;Urumqi 830000;China |
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| Abstract: | Taking the grassland in middle section of the northern hillside of Tianshan Mountain as a typical study area,this research utilized EOS/MODIS satellite remote sensing data to process the dynamic monitoring of biomass change of grassland.The article analyzed the spatio-temporal change characteristic of vegetation index,as well as the correlativity between NDVI and aboveground biomass with MODIS vegetation index,consequently established the MODIS-NDVI of biomass dynamic estimation model in different seasons a... |
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| Keywords: | EOS/MODIS vegetation index dynamic monitoring yield estimation model |
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