U.S.-Sweden Cooperative Research: Microbial Ecology of Grasslands

这个为期三年的奖项支持美国-瑞典合作研究草地微生物生态学。州立大学新墨西哥州的彼得赫尔曼和瑞典农业科学大学的安娜马滕森。 该奖项为沙漠草原上的Jornada LTER（长期生态研究）网站增加了国际层面，并允许与瑞典乌普萨拉附近的牧场草原进行比较研究。 本研究的目的是研究：（1）木本植物入侵草地引起的微生物群落结构和功能的变化;（2）氮素在豆科植物和非豆科植物之间的转移以及菌根真菌在转移中的作用。 研究人员将比较杜松和玫瑰灌木入侵牧场草原与杂酚油入侵沙漠草原。他们还将研究与真菌介导的氮转移有关的问题。 这个国际项目将两个长期生态研究地点与两个独特的生态系统连接起来。 它允许进行比较调查和开发在美国和瑞典收集的长期数据集。

This three-year award supports U.S.-Sweden cooperative research on grassland microbial ecology between R. Peter Herman of New Mexico State University and Anna Martensson of the Swedish University of Agricultural Sciences. The award adds an international dimension to the Jornada LTER (Long-term Ecological Research) site on desert grasslands and allows for comparative research with pasture grasslands near Uppsala, Sweden. The objective of the research is to study: (1) changes in microbial community structure and function associated with woody plant invasion intograsslands; and (2) the transfer of nitrogen between legumes and non-legumes and the role that mycorrhizal fungi play in the transfer. The investigators will compare juniper and rose shrub invasions of pasture grasslands with creosote invasions of desert grasslands. They will also study questions related to mycorrhizae mediated nitrogen transfer. This international project connects two long-term ecological research sites with two distinctive ecosystems. It allows for comparative investigations and for the development of long-term data sets collected in the United States and Sweden.