Diurnal Characteristics of Ecosystem Respiration of Alpine Meadow on the Qinghai-Tibetan Plateau: Implications for Carbon Budget Estimation

Accurately estimating daily mean ecosystem respiration rate (Re) is important for understanding how ecosystem carbon budgets will respond to climate change. Usually, daily mean Re is represented by measurement using static chamber on alpine meadow ecosystems from 9:00 to 11:00 h a.m. local time dire...

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Bibliographic Details
Published in:TheScientificWorld 2013-01, Vol.2013 (2013), p.1-5
Main Authors: Qin, Yu, Yi, Shuhua
Format: Article
Language:English
Subjects:
Alpine flora
Automation
Biochemistry
Biological rhythms
Biology
Carbon
China
Circadian Rhythm - physiology
Climate Change
Climatic conditions
Diurnal
Diurnal cycles (Earth sciences)
Ecological research
Ecosystem
Ecosystem biology
Ecosystems
Environmental aspects
Environmental Monitoring - methods
Global Warming
Mathematical analysis
Meadows
Photosynthesis - physiology
Plant Physiological Phenomena
Plants
Respiration
Soil - chemistry
Soil sciences
Tibet
Weather
Wind
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Summary:Accurately estimating daily mean ecosystem respiration rate (Re) is important for understanding how ecosystem carbon budgets will respond to climate change. Usually, daily mean Re is represented by measurement using static chamber on alpine meadow ecosystems from 9:00 to 11:00 h a.m. local time directly. In the present study, however, we found that the calculated daily mean Re from 9:00 to 11:00 h a.m. local time was significantly higher than that from 0:00 to 23:30 h local time in an alpine meadow site, which might be caused by special climate condition on the Qinghai-Tibetan Plateau. Our results indicated that the calculated daily mean Re from 9:00 to 11:00 h a.m. local time cannot be used to represent daily mean Re directly.
ISSN:2356-6140
1537-744X
1537-744X
DOI:10.1155/2013/289754