US-Belgium Cooperative Research: Formation of Gaseous Hydrocarbons as Influenced by Soil and Sediment Redox Chemistry Conditions

该奖项将支持生理学领域的合作研究 罗纳德D.作者声明：William H. 帕特里克，湿地资源中心，路易斯安那州 大学和博士。货车Cleemput，农业学院 比利时根特大学理学院。 项目 解决了生物成因气体的形成和消费， 土壤，并试图确定具体的条件下， 气体形成，以及导致气体形成的速率和条件。 他们的消费。 出现完全或部分缺氧状态 在淹水和排水良好的土壤条件下。一 高耗氧量的组合， 由丰富的、容易获得的碳和有限的氧组成 高含水量引起的供应是主要原因， 厌氧条件的开始。 这些条件 不仅对植物造成压力， 有利于气态烃的形成，例如 甲烷、乙烯、乙烷、丙烷和丁烷。 这些气体 会对植物产生不利影响， 影响气体环境。 这个项目的目的 是调查土壤或沉积物在多大程度上可以成为 气态烃的来源。 气态烃 沉积物Eh、pH值 和改良剂，包括不同类型的有机材料。 调查将在实验室进行， 就像在外地一样。 这项研究的结果预计 更好地理解碳循环， 导致关于气体成分的附加信息 土壤和沉积物中的环境，包括可能的来源- 与大气层的关系。 这项研究将受益于联合国的专业知识， 美国营养相互作用研究人员和比利时 气态碳氢化合物和厌氧土壤的研究者。

This award will support collaborative research in physiological ecology between Drs. Ronald D. DeLaune and William H. Patrick, Center for Wetland Resources, Louisiana State University and Dr. O. Van Cleemput, Faculty of Agricultural Sciences, University of Ghent, Belgium. The project addresses the formation and consumption of biogenic gases in soils and seeks to define the conditions under which specific gases are formed, and the rates and conditions leading to their consumption. The development of fully or partly anoxic conditions occurs in both waterlogged and in well drained soil conditions. A combination of high oxygen consumption through the presence of abundant, readily available carbon and limited oxygen supply induced by a high water content is the main reason for the onset of anaerobic conditions. These conditions are responsible not only for stress to plants, but are also favorable for the formation of gaseous hydrocarbons, such as methane, ethylene, ethane, propane and butane. These gases can have adverse effects on plants and can negatively influence the gaseous environment. The aim of this project is to investigate to what extent soils or sediments can be a source for gaseous hydrocarbons. Gaseous hydrocarbon production and evolution will be related to sediment Eh, pH and amendments, including different types of organic material. The investigations will be carried out in the laboratory, as well as in the field. The results of this study are expected to provide a better understanding of the carbon cycle and to lead to added information on the composition of the gaseous environment in soils and sediment, including possible source- sink relationships with the atmosphere. The research will benefit from the combined expertise of the US investigators in nutrient interactions and of the Belgian investigators in gaseous hydrocarbons and anaerobic soils.