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首页> 外文期刊>Agricultural and Forest Meteorology >Patterns and processes of carbon, water and energy cycles across northern Australian landscapes: From point to region
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Patterns and processes of carbon, water and energy cycles across northern Australian landscapes: From point to region

机译：横跨澳大利亚北部景观的碳，水和能源循环的模式和过程：从点到区

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Savannas comprise a large proportion of the terrestrial land surface and are highly varied in their composition, structure and function. These characteristics alter land-atmosphere exchanges of heat, water, carbon dioxide and other trace gases, which feed back to the climate at multiple scales. Australian savannas provide significant ecosystem services and further systematic scientific study is needed to sustainably manage these ecosystems. We undertook an interdisciplinary research effort to understand the patterns and processes of carbon, water and energy cycles across northern Australian landscapes across scales from point to region. We quantified the land surface-atmosphere exchanges across the vast region of Australian savannas using a hierarchical, integrated measurement and modelling approach to determine regional greenhouse gas and water budgets. The research team comprised groups from seven institutions and four countries. The research effort comprised of a multi- year measurement and modelling endeavour and culminated in an intensive field program held in September 2008 (late dry season). The program aimed to improve our knowledge of the spatial and temporal variability of land-atmosphere exchanges and the processes driving them as well as our ability to remotely sense them and simulate them using land surface models, which are crucial components of Global Climate Models. We attempted to robustly integrate small scale processes, such as leaf photosynthesis to larger scales applicable to modelling and remote sensing for the savanna region. In this paper we provide the scientific background and our overall approach to the program with reference to the papers in this "Savanna Patterns of Energy and Carbon Integrated Across the Landscape" (SPECIAL) issue
机译：稀树草原占陆地陆地表面的很大一部分，其组成，结构和功能差异很大。这些特征改变了土地，大气之间的热，水，二氧化碳和其他微量气体的交换，这些热量以多种尺度反馈到气候中。澳大利亚稀树草原提供了重要的生态系统服务，需要进一步的系统科学研究来可持续地管理这些生态系统。我们进行了跨学科的研究工作，以了解跨点到区域跨澳大利亚北部景观的碳，水和能源循环的模式和过程。我们使用分级，集成的测量和建模方法来确定整个澳大利亚热带稀树草原地区的地面-大气交换，以确定区域温室气体和水的预算。该研究小组由来自七个机构和四个国家的小组组成。该研究工作包括多年的测量和建模工作，最终于2008年9月（旱季后期）进行了密集的野外计划。该计划旨在提高我们对陆地-大气交换的时空变化及其驱动过程的了解，以及我们利用陆地表面模型进行遥感和模拟的能力，这是全球气候模型的关键组成部分。我们试图将小规模过程（例如叶片光合作用）牢固地集成到适用于热带稀树草原区域的建模和遥感的更大尺度上。在本文中，我们参考本期“跨景观的能源和碳整合的热带稀树草原模式”（SPECIAL）问题中的论文，为该计划提供了科学背景和整体方法。

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