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EFFECTS OF WATER TABLE AND NITROGEN ADDITION ON CO2 EMISSION FROM WETLAND SOIL

YANG Ji-song LIU Jing-shuang YU Jun-bao WANG Jin-da QIN Sheng-jin LI Xin-hua

YANG Ji-song, LIU Jing-shuang, YU Jun-bao, WANG Jin-da, QIN Sheng-jin, LI Xin-hua. EFFECTS OF WATER TABLE AND NITROGEN ADDITION ON CO2 EMISSION FROM WETLAND SOIL[J]. 中国地理科学, 2005, 15(3): 262-268.
引用本文: YANG Ji-song, LIU Jing-shuang, YU Jun-bao, WANG Jin-da, QIN Sheng-jin, LI Xin-hua. EFFECTS OF WATER TABLE AND NITROGEN ADDITION ON CO2 EMISSION FROM WETLAND SOIL[J]. 中国地理科学, 2005, 15(3): 262-268.
YANG Ji-song, LIU Jing-shuang, YU Jun-bao, WANG Jin-da, QIN Sheng-jin, LI Xin-hua. EFFECTS OF WATER TABLE AND NITROGEN ADDITION ON CO2 EMISSION FROM WETLAND SOIL[J]. Chinese Geographical Science, 2005, 15(3): 262-268.
Citation: YANG Ji-song, LIU Jing-shuang, YU Jun-bao, WANG Jin-da, QIN Sheng-jin, LI Xin-hua. EFFECTS OF WATER TABLE AND NITROGEN ADDITION ON CO2 EMISSION FROM WETLAND SOIL[J]. Chinese Geographical Science, 2005, 15(3): 262-268.

EFFECTS OF WATER TABLE AND NITROGEN ADDITION ON CO2 EMISSION FROM WETLAND SOIL

基金项目: Under the auspices of the National Natural Science Foundation of China (No.90211003) and the Knowledge In-novation Program of Chinese Academy of Sciences (No.KACX3-SW-332)
详细信息
    作者简介:

    YANG Ji-song(1978- ),male,a native of Chengwu of Shandong Province,Ph. D. candidate,specialized in environmen- talecology and wetland biogeochemistry.E-mail:yangjisong@neigae.ac.cn.

  • 中图分类号: X511

EFFECTS OF WATER TABLE AND NITROGEN ADDITION ON CO2 EMISSION FROM WETLAND SOIL

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出版历程
  • 收稿日期:  2005-06-10
  • 刊出日期:  2005-09-20

EFFECTS OF WATER TABLE AND NITROGEN ADDITION ON CO2 EMISSION FROM WETLAND SOIL

    基金项目:  Under the auspices of the National Natural Science Foundation of China (No.90211003) and the Knowledge In-novation Program of Chinese Academy of Sciences (No.KACX3-SW-332)
    作者简介:

    YANG Ji-song(1978- ),male,a native of Chengwu of Shandong Province,Ph. D. candidate,specialized in environmen- talecology and wetland biogeochemistry.E-mail:yangjisong@neigae.ac.cn.

  • 中图分类号: X511

摘要: Soil respiration is a main dynamic process of carbon cycle in wetland. It is important to contribute to global climate changes. Water table and nutritious availability are significant impact factors to influence responses of CO2 emission from wetland soil to climate changes. Twenty-four wetland soil monoliths at 4 water-table positions and in 3 nitrogen status have been incubated to measure rates of CO2 emission from wetland soils in this study. Three static water-table controls and a fluctuant water-table control, with 3 nitrogen additions in every water-table control, were carried out. In no nitrogen addition treatment, high CO2 emissions were found at a static low water table (Ⅰ) and a fluctuant water table (Ⅳ), averaging 306.7mg/(m2·h) and 307.89mg/(m2·h), respectively, which were 51%-57% higher than that at static high water table (Ⅱ and Ⅲ). After nitrogen addition, however, highest CO2 emission was found at Ⅱ and lowest emission at Ⅲ. The results suggested that nutritious availability of wetland soil might be important to influence the effect of water table on the CO2 emission from the wetland soil. Nitrogen addition led to enhancing CO2 emissions from wetland soil, while the highest emission was found in 1N treatments other than in 2N treatments. In 3 nutritious treatments, low CO2 emissions at high water tables and high CO2 emissions at low water tables were also observed when water table fluctuated. Our results suggested that both water table changes and nutritious imports would effect the CO2 emission from wetland.

English Abstract

YANG Ji-song, LIU Jing-shuang, YU Jun-bao, WANG Jin-da, QIN Sheng-jin, LI Xin-hua. EFFECTS OF WATER TABLE AND NITROGEN ADDITION ON CO2 EMISSION FROM WETLAND SOIL[J]. 中国地理科学, 2005, 15(3): 262-268.
引用本文: YANG Ji-song, LIU Jing-shuang, YU Jun-bao, WANG Jin-da, QIN Sheng-jin, LI Xin-hua. EFFECTS OF WATER TABLE AND NITROGEN ADDITION ON CO2 EMISSION FROM WETLAND SOIL[J]. 中国地理科学, 2005, 15(3): 262-268.
YANG Ji-song, LIU Jing-shuang, YU Jun-bao, WANG Jin-da, QIN Sheng-jin, LI Xin-hua. EFFECTS OF WATER TABLE AND NITROGEN ADDITION ON CO2 EMISSION FROM WETLAND SOIL[J]. Chinese Geographical Science, 2005, 15(3): 262-268.
Citation: YANG Ji-song, LIU Jing-shuang, YU Jun-bao, WANG Jin-da, QIN Sheng-jin, LI Xin-hua. EFFECTS OF WATER TABLE AND NITROGEN ADDITION ON CO2 EMISSION FROM WETLAND SOIL[J]. Chinese Geographical Science, 2005, 15(3): 262-268.

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