湿地科学与管理
濕地科學與管理
습지과학여관리
WETLAND SCIENCE & MANAGEMENT
2013年
4期
42-45
,共4页
根际%土壤有机碳%甲烷产生潜力%沼泽湿地闽江口
根際%土壤有機碳%甲烷產生潛力%沼澤濕地閩江口
근제%토양유궤탄%갑완산생잠력%소택습지민강구
Rhizosphere%Soil organic%Methane production potential%Marsh of Minjiang river estuary
在全球气候变化的大背景下，湿地甲烷的产生和排放的研究引起广泛关注。以闽江口3种沼泽湿地土壤为研究对象，通过室内厌氧培养实验测定了距植株不同距离的湿地表层土壤的甲烷产生潜力值，研究了不同土壤有机质含量和培养温度对甲烷产生潜力的影响。结果表明：①芦苇和互花米草湿地近根际土壤甲烷产生潜力显著高于远根际土壤，而且根系越发达，相关性越大；②经过相关性分析，土壤有机碳含量和培养温度与甲烷产生潜力呈显著正相关，而且温度越高影响越显著。
在全毬氣候變化的大揹景下，濕地甲烷的產生和排放的研究引起廣汎關註。以閩江口3種沼澤濕地土壤為研究對象，通過室內厭氧培養實驗測定瞭距植株不同距離的濕地錶層土壤的甲烷產生潛力值，研究瞭不同土壤有機質含量和培養溫度對甲烷產生潛力的影響。結果錶明：①蘆葦和互花米草濕地近根際土壤甲烷產生潛力顯著高于遠根際土壤，而且根繫越髮達，相關性越大；②經過相關性分析，土壤有機碳含量和培養溫度與甲烷產生潛力呈顯著正相關，而且溫度越高影響越顯著。
재전구기후변화적대배경하，습지갑완적산생화배방적연구인기엄범관주。이민강구3충소택습지토양위연구대상，통과실내염양배양실험측정료거식주불동거리적습지표층토양적갑완산생잠력치，연구료불동토양유궤질함량화배양온도대갑완산생잠력적영향。결과표명：①호위화호화미초습지근근제토양갑완산생잠력현저고우원근제토양，이차근계월발체，상관성월대；②경과상관성분석，토양유궤탄함량화배양온도여갑완산생잠력정현저정상관，이차온도월고영향월현저。
In the context of global climate change, the formation and emission of wetland methane has received widespread attention. Soils of 3 types of marsh in the Minjiang river estuary were studied. Indoor anaerobic incubation experiment was used to measure the methane production potential of surface soil at different distances from the test plants. The effect of soil organic carbon and culture temperature on the methane production potential was also studied. Results showed that, in the wetland of Phragmites australis and Spartina alterniflora, methane production potential of soils near rhizosphere were higher than that at longer distances. Correlation analysis demonstrated that soil organic carbon and culture temperature were significantly positively correlated with the methane production potential.
