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基于MODIS晴空数据的森林日净第一性生产力估算 被引量:6

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摘要 基于光能利用率模型提出了一个基于MODIS数据参数反演的日净第一性生产力估算模型.其中包括基于植被冠层叶面积指数和地表反照率的光合有效辐射比例能量平衡模型,基于大气气溶胶光学厚度、水汽含量和Bird模型相结合的光合有效辐射计算模型.日净第一性生产力模型所需的主要参数从MODIS数据反演获得.为了验证净第一性生产力结果的估算精度,用中国生态系统研究网络2003和2004年千烟洲和长白山观测站点的日净第一性生产力观测数据和模型估算结果对比,结果表明两者具有较好的一致性.同时也将同期NASA的净第一性生产力产品加以对比,结果表明千烟洲站点上2004年的NASA产品低估了净第一性生产力值,但长白山站则高估了净第一性生产力结果.
出处 《中国科学(D辑)》 CSCD 北大核心 2007年第11期1515-1521,共7页 Science in China(Series D)
基金 国家重点基础研究发展计划(编号:2002CB412506) 国家自然科学基金项目(批准号:40471092)
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参考文献21

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二级参考文献16

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