水生植物凤眼莲入侵对湖泊湿地甲烷排放的影响

doi:10.16389/j.cnki.cn42-1737/n.2021.03.006

江汉大学学报（自然科学版） ›› 2021, Vol. 49 ›› Issue (3): 41-48.doi: 10.16389/j.cnki.cn42-1737/n.2021.03.006

水生植物凤眼莲入侵对湖泊湿地甲烷排放的影响

周文昌^1，2，史玉虎^*1，2，孙晓新³，付甜¹，庞宏东¹

1. 湖北省林业科学研究院，湖北武汉 430075；2. 湖北洪湖湿地生态系统国家定位观测研究站，湖北洪湖 433200；3. 东北林业大学，黑龙江哈尔滨 150040

发布日期:2021-05-18
通讯作者: 史玉虎
作者简介:周文昌（1983— ），男，助理研究员，研究方向：湿地生态学。
基金资助:
国家自然科学基金资助项目（31971474）；湖北洪湖湿地生态系统国家定位观测研究站项目（2019132064）

Effects of Water Hyacinth（Eichhornia crassipes）Invasion on Methane Emission in Lake Wetland

ZHOU Wenchang^1，2，SHI Yuhu^*1，2，SUN Xiaoxin³，FU Tian¹，PANG Hongdong¹

1. Hubei Academy of Forestry，Wuhan 430075，Hubei，China；2. Hubei Honghu Wetland Ecosystem Research Station，Honghu 433200，Hubei，China；3. Northeast Forestry University，Harbin 150040，Heilongjiang，China

Published:2021-05-18
Contact: SHI Yuhu

摘要/Abstract

摘要： 湖泊湿地是大气甲烷的重要排放源，占全球甲烷排放自然源的4% ～ 47%。外来植物入侵导致了湖泊湿地环境因子的改变，进而影响湖泊湿地甲烷排放，很大程度上增加了全球变化背景下我国湿地甲烷排放预测的不确定性。以外来植物凤眼莲为例，综合分析凤眼莲入侵对湿地甲烷排放的影响特征，重点阐述了凤眼莲入侵湖泊湿地后，环境因子和生物因子改变对甲烷排放的影响效果。分析了凤眼莲入侵改变了湖泊湿地甲烷产生、氧化及植被传输途径，进而影响湖泊湿地甲烷排放的关键过程。凝练了凤眼莲入侵影响湖泊湿地甲烷排放的科学问题。

关键词: 凤眼莲, 甲烷, 温室气体, 湖泊湿地, 外来物种, 长江中下游

Abstract: The lake wetland is a significant natural source of methane emission，accounting for 4% - 47% of global natural methane emissions. The invasion of alien plants could change the environmental factors in the lake wetlands， and subsequently， cause great changes in methane emission，which have greatly increased the uncertainty of the methane emission predictions in China's wetlands under the background of global changes. Taking the water hyacinth as an example，we synthetically analyzed the impact characteristic of water hyacinth invasion on methane emission from lake wetlands，and importantly stated the effect of the changing environmental and biological factors on the methane emission when water hyacinth invaded lake wetlands. In addition， we analyzed the changes of the methane production， oxidation， and plant transport mechanisms in lake sediments with water hyacinth invasion， which in turn affected the key process of methane emission in lake wetlands. Finally，we propounded some scientific problems of the methane emission when water hyacinth invaded lake wetlands.

Key words: Eichhornia crassipes, methane, greenhouse gas, lake wetland, alien species, the middle and lower reaches of the Yangtze River

中图分类号:

周文昌，史玉虎，孙晓新，付甜，庞宏东. 水生植物凤眼莲入侵对湖泊湿地甲烷排放的影响[J]. 江汉大学学报（自然科学版）, 2021, 49(3): 41-48.

ZHOU Wenchang，SHI Yuhu，SUN Xiaoxin，FU Tian，PANG Hongdong. Effects of Water Hyacinth（Eichhornia crassipes）Invasion on Methane Emission in Lake Wetland[J]. Journal of Jianghan University (Natural Science Edition), 2021, 49(3): 41-48.

水生植物凤眼莲入侵对湖泊湿地甲烷排放的影响

Effects of Water Hyacinth（Eichhornia crassipes）Invasion on Methane Emission in Lake Wetland

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