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北亚热带次生栎林碳通量及其影响因子研究(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2011年03期
Page:
7
Column:
研究论文
publishdate:
2011-06-13

Article Info:/Info

Title:
The carbon flux and its environmental factors in a north subtropical secondary oak forest ecosystem
Author(s):
JIANG Yan HU Haibo* ZHANG Xueshi XUE Jianhui
College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China
Keywords:
NEEsecondary oak forestdiurnal carbon flue
Classification number :
S764
DOI:
10.3969/j.jssn.1000-2006.2011.03.008
Document Code:
A
Abstract:
The research choice the secondary oak forest ecosystem in the forest ecopositioning location research station of Yangtze River Delta, Southeastern China, and monitored the CO2, H2O, temperature, moisture, PAR, and so on by eddy covariance. The data of regulated change and process of diurnal Net Ecosystem Exchange (NEE) of forest ecosystem were obtained during a year. The ecosystem began to absorb CO2 at about 7: 00 am, and maintains in great absorption from 10:00 to 14:00, at about 17: 30, the ecosystem began to release CO2. The analysis of the relationships of NEE and forest ecosystem and environmental factors, shows that: When the PAR>5 μmol/(m2·s), the relationship of NEE and PAR has no significant correlation in different season, monthly average NEE and monthly average temperature in canopy had linear relationship.

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Last Update: 2011-06-13