Constraints on Production and Decomposition in Temperate Semiarid Grasslands

9316815 Lauenroth尽管在过去的30年里，人们在理解净初级产量和分解方面做出了相当大的努力，但仍有许多突出和关键的问题没有答案。这个项目的目的是为了回答温带草原的几个问题。该项目将包括实验和观测方法，以调查两个温带草地地点（一个在美国，另一个在阿根廷）对地上净初级投射、分解和净氮矿化的控制。这两个地点都有长期的生态调查记录。这项工作代表了两个研究小组之间大约十年前开始的合作的延续。

9316815 Lauenroth Despite the considerable effort that has been devoted to understanding net primary production and decomposition in the past 30 years, there are still a number of outstanding and crucial questions for which there are not answers. The purpose of this project is to answer several of these questions for temperate grasslands. This project will comprise experimental and observational approaches to investigate the controls on aboveground net primary projection, decomposition, and net nitrogen mineralization at two temperate grassland sites, one in the United States and the other in Argentina. Both sites have long-term records of ecological investigations. This work represents a continuation of a collaboration between the two research groups that began approximately a decade ago.