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摘要： 介绍了若尔盖高原区域碳收支参量多尺度遥感综合观测试验的研究背景、科学目标、关键问题、观测方案、观测系统设置和后续观测计划.总体目标是,开展若尔盖高原区域湿地—草地生态系统碳收支参量多尺度遥感与地面同步观测试验,为人为干扰条件下湿地—草地生态系统碳收支变化过程研究积累基础数据;发展能够融合多源、多尺度遥感观测的碳收支相关参量反演模型,为实现卫星遥感对区域尺度碳收支研究提供方法和范例;建立区域尺度上的多尺度观测体系,通过多源遥感技术与生态过程模型的耦合,降低碳收支遥感监测及模拟的不确定性,更加综合地理解湿地—草地生态系统不同时空尺度上的碳收支过程;增强遥感技术在湿地生态研究的应用性,并最终为区域湿地保护提供重要依据.试验以人为干扰剧烈的若尔盖高原湿地—草地区域为试验区,以碳循环过程的关键参量为主要观测对象,利用卫星遥感、航空遥感、地基遥感、通量观测、生态观测等相关设备,开展航空、卫星和地面配合的大型综合观测试验,精细化观测若尔盖高原沼泽化草甸、湿草甸、草甸、草原等不同覆被类型的碳收支过程的各个分量.讨论了碳收支参量的多尺度观测与时空尺度扩展问题,展望了同步综合观测试验在陆地生态系统碳循环研究的应用前景. 关键词： 碳收支;  遥感试验;  若尔盖;  无人机;  通量     Abstract: This paper introduces the research background,scientific objectives,scientific questions,experiment design,configuration of the observation system and the future observation plan for the integrated multi-scale remote sensing experiment of carbon budget parameters in Zoige plateau.The overall objectives of this experiment includes the followings:①conducting an integrated multi-scale remote sensing experiment on carbon budget parameters in the Zoige plateau,which is helpful to accumulate a comprehensive multi-scale dataset for the research of wetland-grassland ecosystem carbon budget change processes under human disturbance;②developing the carbon budget parameter retrieving model which can integrate the multi-sources and multi-scale remote sensing observations;③providing the study methods and examples for the terrestrial ecosystem carbon budget studies on regional scale using remote sensing methods;④buildingup the multi-scale observation system according to the combination of remote sensing with ecological processes models to reduce the uncertainty in carbon budget monitoring.This experiment is helpful for enhancing the applicability of remote sensing technology for the ecological studies of wetlands,and which can finally provide the important foundation for the protection of Zoige wetland.The experiment takes the wetland-grassland area in Zoige plateau as the experimental area,and takes the key parameters in carbon cycle as the observation target.Using the satellite,airborne remote sensing,ground-based remote sensing,flux observation and ecological observation,the integrated experiment observed the carbon budget parameter for land cover,such as swamp meadow,wet meadow,meadow and prairie in detail.This paper also discusses the expansion of temporal and spatial scales and multi-scale observations for carbon budget parameters,and prospects the application potential of integrated observation experiment for ecosystem carbon cycle studies.

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