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CARBON DYNAMICS OF WETLAND IN THE SANJIANG PLAIN

SONG Chang-chun WANG Yi-yong WANG Yue-si YAN Bai-xing WANG De-xuan ZHAO Zhi-chun LOU Yan-jing

SONG Chang-chun, WANG Yi-yong, WANG Yue-si, YAN Bai-xing WANG De-xuan, ZHAO Zhi-chun, LOU Yan-jing. CARBON DYNAMICS OF WETLAND IN THE SANJIANG PLAIN[J]. 中国地理科学, 2003, 13(3): 228-231.
引用本文: SONG Chang-chun, WANG Yi-yong, WANG Yue-si, YAN Bai-xing WANG De-xuan, ZHAO Zhi-chun, LOU Yan-jing. CARBON DYNAMICS OF WETLAND IN THE SANJIANG PLAIN[J]. 中国地理科学, 2003, 13(3): 228-231.
SONG Chang-chun, WANG Yi-yong, WANG Yue-si, YAN Bai-xing WANG De-xuan, ZHAO Zhi-chun, LOU Yan-jing. CARBON DYNAMICS OF WETLAND IN THE SANJIANG PLAIN[J]. Chinese Geographical Science, 2003, 13(3): 228-231.
Citation: SONG Chang-chun, WANG Yi-yong, WANG Yue-si, YAN Bai-xing WANG De-xuan, ZHAO Zhi-chun, LOU Yan-jing. CARBON DYNAMICS OF WETLAND IN THE SANJIANG PLAIN[J]. Chinese Geographical Science, 2003, 13(3): 228-231.

CARBON DYNAMICS OF WETLAND IN THE SANJIANG PLAIN

基金项目: Under the auspices of the Knowledge Innovation Project of Chinese Academy of Sciences(No.KZCXI-SW-01.KZCX13-SW-262)
详细信息
    作者简介:

    SONG Chang-chun(1968- ), male, a native of Zhumadian City of Henan Province, professor, Ph. D., specialized in greenhouse gases research. E-mail:songcc@mail.neigae.ac.cn

  • 中图分类号: P593

CARBON DYNAMICS OF WETLAND IN THE SANJIANG PLAIN

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出版历程
  • 收稿日期:  2002-12-23
  • 刊出日期:  2003-09-20

CARBON DYNAMICS OF WETLAND IN THE SANJIANG PLAIN

    基金项目:  Under the auspices of the Knowledge Innovation Project of Chinese Academy of Sciences(No.KZCXI-SW-01.KZCX13-SW-262)
    作者简介:

    SONG Chang-chun(1968- ), male, a native of Zhumadian City of Henan Province, professor, Ph. D., specialized in greenhouse gases research. E-mail:songcc@mail.neigae.ac.cn

  • 中图分类号: P593

摘要: Methane(CH4) and carbon dioxide(CO2) emission was measured from mires in the Sanjiang Plain, Northeast China, by using a static chamber technique during free snow-covered periods. The seasonal mean emission of CH4 was 12.4mg/(m2·h) and the emission range of CO2 was 8.7-16.6g/(m2·d)(gross CO2 flux) during plant growth period. CO2 emission rate in the day was stronger than that at night, and the daily peak appears at 19:00. The mire plants in the Sanjiang Plain begin to sprout at the end of April. The aboveground biomass of the mire plants increased from zero to the peak from July to September and showed single peak form. The aboveground biomass of Carex lasiocarpa(464.8g/m2) was lower than that of Deyeuxia platyphylla(530.8g/m2), but the underground biomass was higher than that of Deyeuxia platyphylla. Gross CO2 flux showed the significance positive correlation relationship with plant biomass. Gross CO2 flux and CH4 emission were also correlated with soil temperature(0-5cm) and water temperature. However, the highest CH4 emission rate lagged behind the highest soil temperature in the root area during plant growth period. The data also indicated that wet and warm conditions during the early spring led to greater value of CH4 emission flux. Inundation is the necessary condition for the existence of methane bacteria, but there is no significant positive correlation between the inundation depth and CH4 emission rate in this region. Within the same growing season and under the same inundation condition, the variations of CH4 emission rate could be markedly different.

English Abstract

SONG Chang-chun, WANG Yi-yong, WANG Yue-si, YAN Bai-xing WANG De-xuan, ZHAO Zhi-chun, LOU Yan-jing. CARBON DYNAMICS OF WETLAND IN THE SANJIANG PLAIN[J]. 中国地理科学, 2003, 13(3): 228-231.
引用本文: SONG Chang-chun, WANG Yi-yong, WANG Yue-si, YAN Bai-xing WANG De-xuan, ZHAO Zhi-chun, LOU Yan-jing. CARBON DYNAMICS OF WETLAND IN THE SANJIANG PLAIN[J]. 中国地理科学, 2003, 13(3): 228-231.
SONG Chang-chun, WANG Yi-yong, WANG Yue-si, YAN Bai-xing WANG De-xuan, ZHAO Zhi-chun, LOU Yan-jing. CARBON DYNAMICS OF WETLAND IN THE SANJIANG PLAIN[J]. Chinese Geographical Science, 2003, 13(3): 228-231.
Citation: SONG Chang-chun, WANG Yi-yong, WANG Yue-si, YAN Bai-xing WANG De-xuan, ZHAO Zhi-chun, LOU Yan-jing. CARBON DYNAMICS OF WETLAND IN THE SANJIANG PLAIN[J]. Chinese Geographical Science, 2003, 13(3): 228-231.

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