Net Ecosystem Exchange of CO2 in Permafrost Larch Ecosystems

Net Ecosystem Exchange of CO2 in Permafrost Larch Ecosystems
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多年冻土落叶松生态系统中二氧化碳的净生态系统交换

DOI:
10.1007/978-1-4020-9693-8_10
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发表时间:
2010
期刊:
影响因子:
2.7
通讯作者:
Y. Nakai
Y. Nakai
中科院分区:
环境科学与生态学2区
文献类型:
--
作者:
Y. Nakai

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生态系统与大气之间的二氧化碳交换是北方森林碳收支的重要组成部分。在本章中,净生态系统交换(NEE)的CO2在冻土落叶松生态系统将被讨论,基于微气象(塔通量)测量。CO2从生态系统向大气的移动通常被标记为积极的。微气象观测可以获得半小时时间分辨率的生态系统尺度NEE。这些时间和空间尺度在碳、水和能量收支研究中优于生态测量。
Carbon dioxide exchange between the ecosystem and the atmosphere would be a major component for carbon budget at boreal forests. In this chapter, net ecosystem exchange (NEE) of CO2 at a permafrost larch ecosystem will be discussed, based on a micrometeorological (tower flux) measurement. Movement of CO2 from ecosystem to atmosphere is customarily labeled as positive. The micrometeorological measurement can obtain NEE with a half-hourly time-resolution at an ecosystem scale. These temporal and spatial scales are advantages in carbon, water, and energy budget studies over ecological measurements.
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