| 用NOAA气象卫星的AVHRR遥感资料估算中国的净第一性生产力 |
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| 引用本文： | 肖乾广,陈维英.用NOAA气象卫星的AVHRR遥感资料估算中国的净第一性生产力[J].Acta Botanica Sinica,1996,38(1):35-39. |
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| 作者姓名： | 肖乾广 陈维英 |
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| 作者单位： | 国家卫星气象中心!北京100081 |
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| 摘 要： | 重点研究用气象卫星ＡＶＨＲＲ遥感方法估算目前中国的净第一性生产力（ＮＰＰ）水平。ＡＶＨＲＲ可见光通道和近红外通道组合成的标准化差植被指数（ＮＤＶＩ），既是监测植被生长好坏的参量，也是计算净第一性生产力的重要参量。介绍了用遥感统计模型计算ＮＰＰ的方法，获得了一系列结果。将遥感方法计算的ＮＰＰ与气候模型计算的ＮＰＰ进行了比较，证明两者有一定的可比性。计算净第一性生产力需要全年的ＮＤＶＩ，因此对卫星资料处理技术也作了介绍
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| 关 键 词： | 植被 遥感 净第一生产力 敏感地区 |
ESTIMATING THE NET PRIMARY PRODUCTIVITY IN CHINA USING METEOROLOGICAL SATELLITE DATA |
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| Authors: | Xiao Qian guang Chen Wei ying Sheng Yong wei and Guo Liang |
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| Abstract: | Net primary productivity (NPP) is one of the cruces for global changes studies,utilizing remote sensing data from meteorological satellite is an objective way to estimate NPP. Usually, the normalized difference vegetation index (NDVI) is derived from channel 1 and channel 2 of NOAA/AVHRR to monitor vegetation. Using the processed annual NDVIs , the authors could estimate the NPP values from an experimental model. The result showed that NPP derived from NDVIs was highly comparible to that estimated in the conventional way. |
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| Keywords: | Vegetation Remote sensing Net primary productivity Transition zone sensitive to climate change |
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