PMID- 24564132
OWN - NLM
STAT- MEDLINE
DCOM- 20150321
LR  - 20161018
IS  - 1001-9332 (Print)
IS  - 1001-9332 (Linking)
VI  - 24
IP  - 11
DP  - 2013 Nov
TI  - [Net carbon exchange and its environmental affecting factors in a forest 
      plantation in Badaling, Beijing of China].
PG  - 3057-64
AB  - By using eddy covariance technique, a year-round (November, 2011-October, 2012) 
      continuous measurement of net ecosystem carbon dioxide exchange (NEE) was 
      conducted in a 4-year old mixed forest plantation in Badaling of Beijing. The 
      forest plantation ecosystem was a net carbon sink in July and August, but a 
      carbon source in the rest months. The monthly net carbon loss and uptake were the 
      largest in April and July, respectively. The annual net ecosystem productivity 
      was (-256 +/- 21) g C x m(-2) x a(-1), in which, the ecosystem respiration was 
      (950 +/- 36) g C x m(-2) x a(-1), and the gross ecosystem productivity was (694 
      +/- 17) g C x m(-2) x a(-1). The nighttime NEE increased exponentially with the 
      soil temperature at 10 cm depth, with the estimated temperature sensitivity of 
      ecosystem respiration (Q10 ) being 2.2. During the growth season (May-September), 
      the daytime NEE increased with photosynthetically active radiation (PAR) as 
      described by the Michaelis-Menten rectangular hyperbola. The ecosystem quantum 
      yield varied seasonally, ranging from 0.0219 micromol CO2 x micromol(-1) in May 
      to 0.0506 micromol CO2 x micromol(-1) in July. The maximum carbon assimilation 
      rate and the average daytime respiration followed the seasonal trends of PAR and 
      air temperature. In July and August, vapor pressure deficit and soil moisture 
      played a significant role in determining daytime NEE.
FAU - Tang, Xiang
AU  - Tang X
AD  - School of Soil and Water Conservation, Beijing Forestry University, Beijing 
      100083, China. t779663873@126.com
FAU - Chen, Wen-Jing
AU  - Chen WJ
AD  - School of Soil and Water Conservation, Beijing Forestry University, Beijing 
      100083, China.
FAU - Li, Chun-Yi
AU  - Li CY
AD  - School of Soil and Water Conservation, Beijing Forestry University, Beijing 
      100083, China.
FAU - Zha, Tian-Shan
AU  - Zha TS
AD  - School of Soil and Water Conservation, Beijing Forestry University, Beijing 
      100083, China.
FAU - Wu, Bin
AU  - Wu B
AD  - School of Soil and Water Conservation, Beijing Forestry University, Beijing 
      100083, China.
FAU - Wang, Xiao-Ping
AU  - Wang XP
AD  - Beijing Forestry Carbon Administration (BFCA), Beijing 100013, China.
FAU - Jia, Xin
AU  - Jia X
AD  - School of Soil and Water Conservation, Beijing Forestry University, Beijing 
      100083, China.
LA  - chi
PT  - English Abstract
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - China
TA  - Ying Yong Sheng Tai Xue Bao
JT  - Ying yong sheng tai xue bao = The journal of applied ecology
JID - 9425159
RN  - 142M471B3J (Carbon Dioxide)
RN  - 7440-44-0 (Carbon)
SB  - IM
MH  - Carbon/*metabolism
MH  - *Carbon Cycle
MH  - Carbon Dioxide/metabolism
MH  - China
MH  - *Forests
MH  - Photosynthesis
MH  - Seasons
MH  - Trees/growth & development/*metabolism
EDAT- 2014/02/26 06:00
MHDA- 2015/03/22 06:00
CRDT- 2014/02/26 06:00
PHST- 2014/02/26 06:00 [entrez]
PHST- 2014/02/26 06:00 [pubmed]
PHST- 2015/03/22 06:00 [medline]
PST - ppublish
SO  - Ying Yong Sheng Tai Xue Bao. 2013 Nov;24(11):3057-64.